Layer2 Jobs
57 jobs found
OP Labs PBC
8 days ago
## **OP Labs** **OP Labs** builds **Optimism**, an open-source blockchain network that powers the next generation of financial infrastructure. Hundreds of companies, from the world's largest enterprises like **Sony**, **Coinbase**, **Kraken**, **Uniswap**, **OKX**, and **Bitpanda** to the most ambitious early-stage builders, use the OP Stack to launch their own blockchains and bring their users onchain. Today, over 65% of Layer 2 activity on Ethereum runs through the OP Stack. We are a small team building at the speed of the ecosystem we support. We’re remote-friendly but the NYC office is our center of gravity. We've raised $178M from **a16z**, **Paradigm**, and others. We have our work cut out for us and are looking for exceptional people to join us. --- ## **About The Role** We are looking for a **Senior Sales Engineer** to support Optimism’s enterprise and institutional adoption. This role sits at the intersection of sales, product, and engineering, and is critical to helping institutions evaluate, design, and deploy production-grade onchain systems using the OP Stack. You will partner closely with the Sales, Product, and Engineering teams to leverage Optimism’s technology into institution-ready solutions, supporting technical diligence, performance testing, architecture design, and integration planning for large and innovative enterprises. --- ## **What are the role responsibilities?** ### **Support deal execution & technical validation** - Act as the primary technical counterpart for enterprise and institutional partners during evaluations, pilots, and integrations into production systems - Lead technical discovery sessions covering architecture, performance, security, compliance, and operational requirements - Design and support test environments (e.g., devnets, performance benchmarks, cloud deployments) to validate throughput, latency, and cost assumptions - Respond to detailed technical diligence from banks, asset managers, system integrators, and regulators ### **Bridge product, engineering, and customers** - Translate enterprise requirements into clear technical feedback for OP Labs product and engineering teams - Help shape roadmap priorities related to institutional needs (e.g., performance, compliance tooling, privacy, sequencing models) - Support integrations with wallets, custody providers, cloud infrastructure, and system integrators (e.g., Fireblocks, AWS, SIs) ### **Enable partners for production readiness** - Guide partners through OP Stack architecture, deployment models, upgrade paths, and operational best practices - Support documentation localization and technical enablement in Japanese - Help customers compare and migrate from private / permissioned experimentation to public or hybrid production deployments --- ## **What skills do you bring?** ### **Experience** - 5+ years of experience as a Sales Engineer, Solutions Architect, or in a Technical Pre-Sales role - Background in blockchain infrastructure, cloud platforms, distributed systems, or financial infrastructure - Hands-on experience with Ethereum or EVM-based systems (Layer 1 or Layer 2 strongly preferred) - Experience working with regulated institutions (banks, asset managers, exchanges, payments firms) is a strong plus ### **Technical Skills** - Strong understanding of blockchain architecture: sequencing, finality, rollups, smart contracts, and network operations - Familiarity with cloud infrastructure and production deployment environments - Ability to reason about performance, scalability, security, and operational tradeoffs - Comfortable explaining complex technical concepts to both engineers and non-technical stakeholders ### **Skills & Approach** - Sharp strategic thinker who can map fragmented fintech value chains and craft compelling BD theses - Independent deal-closer who’s comfortable interfacing with C-level stakeholders and navigating multi-party partnerships - High agency operator who can build 0→1 partnerships, GTM strategies, and partner programs with minimal oversight - Strong communicator who can translate between business, technical, and ecosystem stakeholders across varying levels of crypto fluency - Comfortable navigating ambiguity in a fast-moving, frontier market and iterating quickly based on learnings ### **Culture & Mindset** - Motivated to rebuild the global financial stack on open, composable rails - Low-ego and execution-oriented; value results over recognition - Thrive in collaborative, cross-functional teams but can also move quickly on your own - Always looking to create scalable impact via product, partnerships, or ecosystems --- ## **Please Note** We are aware of fraudulent individuals falsely claiming to represent **OP Labs** in recruitment activities. - All official communication will come from an **@oplabs.co** email address, or from a verified LinkedIn profile. - We will never ask for payment, banking information, or personal identification details at any stage of our hiring process. - All current openings are listed exclusively on our official careers page and linked from our verified social profiles. - If you’re ever unsure about a communication that claims to be from OP Labs, please contact us directly at **people@oplabs.co** to verify authenticity. Your safety and trust are very important to us. Thank you for helping us prevent fraud. --- *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*
Fireblocks
8 days ago
## **Full Stack Engineer - Wallet Flows Team** The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. **Fireblocks'** platform and network provide the simplest and most secure way for companies to work with digital assets and is trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including BNY Mellon, BNP Paribas, ANZ Bank, Revolut, and thousands more. ### **About The Team** The **Wallet Flows** team is leading a strategic transformation of Fireblocks' core infrastructure. We're methodically redesigning and rewriting major system components to create next-generation architecture that enhances security, scalability, and performance. Our team blends industry veterans and rising talent, united by excellence and a results-driven mindset. We value seasoned expertise alongside fresh perspectives, fostering an environment where pragmatic solutions and innovation thrive together. ### **About The Role** We are looking for a **Full Stack Engineer** with a strong blockchain foundation. In this role, you will work across the entire stack — from user-facing interfaces to backend services and on-chain integrations — to build and evolve the systems that power institutional digital asset operations. You will serve as a technical bridge between raw blockchain capabilities and the polished wallet experiences delivered to customers. This means diving into protocol-level details one day and refining a transaction workflow UI the next. Your blockchain expertise will directly inform how we design, build, and ship features that handle billions in transaction volume. ### **What You'll Do** - Design and build end-to-end features across frontend, backend, and blockchain layers that power Fireblocks' wallet infrastructure - Architect and deliver mission-critical components while maintaining 24/7 operations with zero disruption to live transaction volume - Research and integrate blockchain technologies including Layer 2 solutions, cross-chain bridges, staking protocols, and DeFi integrations into the Fireblocks platform - Develop intuitive, responsive interfaces that surface complex blockchain operations in a clear and actionable way for institutional users - Collaborate with blockchain foundations, vendors, builders, and customers to understand protocol design, tooling, and integration requirements - Balance pragmatism with vision — make smart trade-offs to deliver incremental value while steadily advancing toward next-generation architecture goals - Collaborate with product, engineering, and security teams to define technical requirements and deliver cohesive solutions - Mentor and guide other engineers on blockchain technologies, full stack patterns, and best practices ### **What You'll Bring** - 5+ years of full stack development experience with modern frontend frameworks (**TypeScript**) and backend services (**Go**, or **Python**) - 3+ years of hands-on experience in the blockchain ecosystem — working with protocols, on-chain data, smart contracts, or wallet infrastructure - Knowledge of consensus mechanisms, cryptographic primitives, and distributed systems - Strong understanding of microservices architecture, API design, and modern frontend patterns - Demonstrated ability to apply AI tools for programming with experience in vibe coding - Strong verbal and written communication skills and a collaborative mindset - Experience working in cross-functional teams and fast-paced environments - A curious mind, willing to learn, including new coding languages and tech stacks ### **Preferred** - Experience building blockchain solutions for enterprise or institutional use cases - Understanding of security best practices for smart contracts and blockchain systems - Experience with MPC, multi-signature wallets, or other advanced cryptographic techniques - Experience with institutional DeFi, staking protocols, or custody solutions - Experience modernizing and transforming mission-critical production systems with minimal disruption - Bachelor's degree in Computer Science, Engineering, or related field; Master's degree preferred ### **Success Criteria & Impact** - You deliver features end-to-end — from UI to on-chain integration — with high quality and minimal iteration - Your blockchain expertise is consistently leveraged as a foundation for architectural and product decisions - You are considered a subject matter expert by internal engineering teams across both application and protocol layers - Consistent contribution to the Fireblocks platform by pushing impactful design and code to production ### **Compensation & Benefits** For employees hired to work from our NYC HQ, Fireblocks is required by law to include a reasonable estimate of the compensation range for this role. This range is specific to New York City, and takes into consideration a wide range of factors that are reviewed when making a hiring decision, such as years of experience, skills, and other business needs. It is not typical for a candidate to be hired at or near the top of the pay range and each compensation decision is dependent on each individual case. A reasonable base salary range estimate for this position is **$177,000 to $230,000**. The base salary is one component of the total compensation package, which for some roles may include a target bonus, a very competitive equity grant, and very generous benefits. While we believe competitive compensation is a critical aspect of you deciding to join us, we do hope you also spend time considering why our mission and culture are right for you. We are creating something transformational here, and we hope you are as excited about the future as we are. *Fireblocks' mission is to enable every business to easily and securely access digital assets and cryptocurrencies. In order to do that, we strongly believe our workforce should be as diverse as our clients, and this is why we embrace diversity and inclusion in all its forms.* *Please see our candidate privacy policy [here](https://www.fireblocks.com/candidate-privacy-policy/).* When applying, mention the word **CANDYSHOP** to show you read the job post completely.
8 days ago
## OP Labs **OP Labs** builds **Optimism**, an open-source blockchain network that powers the next generation of financial infrastructure. Hundreds of companies, from the world's largest enterprises like **Sony, Coinbase, Kraken, Uniswap, OKX, and Bitpanda** to the most ambitious early-stage builders, use the OP Stack to launch their own blockchains and bring their users onchain. Today, over 65% of Layer 2 activity on Ethereum runs through the OP Stack. We are a small team building at the speed of the ecosystem we support. We're remote-friendly but the NYC office is our center of gravity. We've raised $178M from **a16z, Paradigm**, and others. We have our work cut out for us and are looking for exceptional people to join us. ### Role and Responsibilities We're hiring a **Senior Product Manager** to drive onchain adoption by fintechs and centralized crypto exchanges in the Optimism ecosystem. Fintechs and crypto exchanges are rapidly moving their business onchain to serve as the most important distribution partners for bringing millions of users and billions in assets onchain. In this role, you'll define the roadmap for enterprise-facing products that help these businesses expand their product suite and integrate DeFi functionality without sacrificing user experience. As the creators of Optimism Mainnet and the infrastructure that powers all OP Stack chains, OP Labs is dedicated to enhancing Ethereum's performance exponentially. We operate as a Public Benefit Corporation, aligning our mission with the greater public good by funding Ethereum public goods through our growth. ### What are the role responsibilities? - **Lead the Fintech & Exchange Roadmap:** Define and execute product strategy across integrations, SDKs, and infrastructure that help fintechs and exchanges embed onchain services into their platforms. - **Champion the Customer:** Build deep expertise in fintechs and exchanges, understanding their needs around compliance, custody, and user experience. Translate those needs into products and partnerships that deliver measurable value. - **Drive Adoption of Onchain Services:** Launch and scale products that make it easier for enterprises to offer yield, trading, payments, and other onchain financial products to their users. - **Partner with the Ecosystem:** Collaborate and coordinate with DeFi protocols, infra providers, custodians, and chain operators to accelerate ecosystem growth. - **Collaborate Cross-Functionally:** Work with engineering, BD, design, and marketing to bring new products from concept to launch and iterate quickly. ### What skills do you bring? - **Experience:** 5+ years of product management experience, ideally in fintech, consumer finance apps, or centralized crypto exchanges. Direct experience with onchain/DeFi products is a strong plus. - **Customer-Driven:** Strong ability to engage with enterprise partners, uncover pain points, and translate them into actionable product requirements. - **Technical Aptitude:** Comfortable working across custody, wallet infra, and protocol integrations to inform product decisions. - **Domain Knowledge:** Solid understanding of fintech product mechanics (e.g., trading, lending, payments) or exchange infrastructure. - **Collaborative & Adaptable:** Thrives in fast-moving environments with shifting priorities and rapidly developing regulatory landscape. - **Strong Communicator:** Excellent written and verbal skills; able to articulate complex concepts to both technical and non-technical audiences. - **Mission-Aligned:** Belief that blockchains can make financial services more open, efficient, and accessible to anyone. ### What will you like about us? - We take care of our employees. Competitive compensation, fully paid medical, dental, and vision, and a 4% 401K match. - We take pride in the accomplishments of our teammates and support each other in doing the best work of our careers. - Our team is a diverse group of people from varied backgrounds. We cherish our eclecticism and consider it a great strength. - We're remote-friendly with an NYC office where we like to collaborate in person. - We think long-term. Our founders have been scaling Ethereum since 2015. - Learn more about our interviewing here! We are aware of fraudulent individuals falsely claiming to represent **OP Labs** in recruitment activities. ### Please Note - All official communication will come from an @oplabs.co email address, or from a verified LinkedIn profile. - We will never ask for payment, banking information, or personal identification details at any stage of our hiring process. - All current openings are listed exclusively on our official careers page and linked from our verified social profiles. - If you're ever unsure about a communication that claims to be from OP Labs, please contact us directly at people@oplabs.co to verify authenticity. Your safety and trust are very important to us. Thank you for helping us prevent fraud. When applying, mention the word **CANDYSHOP** to show you read the job post completely.
9 days ago
## BYTE Protocol **BYTE Protocol** is the per-byte data settlement layer for the agentic economy, built on Arbitrum. Publishers stake PPB tokens, broadcast data feeds, and earn USDC per KB. AI agents pay per kilobyte via MCP or x402. Quality is enforced entirely on-chain through a Proof-of-Quality Score (PQS) — computed from disputes, retention, and freshness — with progressive slashing for bad actors (5%→10%→25%+suspension→100%+ban) and up to 70% take rate for top-tier publishers. No arbitration committee. No trusted intermediary. The protocol enforces it. **BYTEDev Inc.** is the Delaware C-Corp behind the protocol. We are pre-mainnet and pre-funding, with 20 contracts live on Arbitrum Sepolia, 533 tests passing, and agents already settling on testnet. --- ## The Role The protocol is built. What comes next is the hardest part: getting it to mainnet safely. This is a co-founder role. You will own the path from working testnet to audited, production-grade protocol — leading the external security audit, hardening the contracts, and shaping the technical roadmap from here forward. You'll work directly with the founder, have real ownership in the company, and be the technical voice to auditors, investors, and the builder community. --- ## What You'll Own - Lead the external security audit end-to-end — firm selection (Trail of Bits, OpenZeppelin, Spearbit, or your recommendation), scope definition, remediation, and sign-off - Identify and close attack vectors the existing test suite doesn't cover — reentrancy, flash loan manipulation, MEV, oracle gaming, access control edge cases - Architect v0.6+ contracts alongside the founder — commit-reveal PQS, validator tiering, governance activation - Design and maintain a robust security architecture across the full stack: on-chain contracts, Rust indexer, TypeScript agent tooling, and x402 gateway - Drive strategic IT and infrastructure decisions as the protocol scales toward mainnet and beyond - Oversee technical execution, manage high-stakes timelines, and contribute to the protocol's long-term roadmap from both a technical and business perspective --- ## What's Already Built You are not walking into a whitepaper. You are walking into a working protocol: - 20 Solidity contracts: PPBToken, DataStream, ReputationEngine (v0.5), PQSVerifier, OracleConsensus, ValidatorRegistry, ArbitrationController, DividendPool, BurnEngine, and more - Rust indexer + libp2p relay network, fully synced on Arbitrum Sepolia - TypeScript autonomous validator agent (open-source, live on npm) - MCP server — byte-mcp-server@0.3.0, 13 tools, agent-native - x402 payment gateway - Next.js marketplace UI (Mercat) - Pre-audit baseline: Slither clean, Mythril clean across 8 core contracts --- ## Qualifications **Required:** - Deep Solidity security expertise — you have found bugs in production contracts, not just written them - Hands-on experience coordinating or participating in formal smart contract audits - Strong software architecture fundamentals — able to design and scale complex, distributed systems - Proficiency in blockchain-specific security: EVM attack vectors, economic exploits, cross-contract risk - Experience with Ethereum or Layer 2 solutions, ideally Arbitrum - Comfortable reading and writing Rust and TypeScript — the off-chain stack is not optional here - Strong project management instincts — you can own a timeline, identify risk early, and ship under pressure - Excellent critical thinking and communication skills — you'll be the technical voice to auditors, investors, and external partners **Strongly preferred:** - Prior experience at a security firm (Trail of Bits, Spearbit, Code4rena, Sherlock) or a DeFi protocol that shipped to mainnet - Opinions on mechanism design — slashing schedules, commit-reveal schemes, stake economics - Familiarity with web3, agent-driven ecosystems, or AI infrastructure - Background in Computer Science, Engineering, or equivalent technical field --- ## Why Now The x402 Foundation (Coinbase, Cloudflare, Google, Visa, Anthropic, Vercel) standardized agent payment rails in 2025. MCP is the universal agent tool interface. BYTE was designed for both from day one. The market is forming now — the window for the first-mover data marketplace is open and won't stay open. The audit is the gate. Mainnet is the unlock. This role exists to get us through it. --- ## Compensation Equity-first co-founder role. Comp details are discussed directly and honestly — structure depends on funding stage and what you need. If you need a salary to operate, we will have that conversation openly. --- ## To Apply DM Mark Zhurbin on LinkedIn or X (@NotMarkZ) with two things: what you've audited or broken, and why this problem is worth your time. No cover letter needed. When applying, mention the word **CANDYSHOP** to show you read the job post completely.
Offchain
10 days ago
## Head of Finance **Location:** Remote **Department:** Finance **Commitment:** Full-time --- At Offchain, we aren’t just building products: we’re leading a movement. As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security, and transparency. At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you’re energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you. ### Why Offchain? Offchain is setting the pace for the entire Ethereum ecosystem. We built the Arbitrum stack that powers Arbitrum One, the most widely adopted Ethereum scaling solution that exists today. Arbitrum’s ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain technology to build their own Arbitrum chains. Major players in the space — Robinhood, BlackRock, Ethena Labs, Securitize, Aave, and Apechain — are all using the Arbitrum stack. Arbitrum’s thriving ecosystem wouldn’t exist without our advanced technology stack. Arbitrum, Prysm, ZeroDev. These aren’t just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure. To top it all off? We’re backed by $124 million in funding. We’ve demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. --- ### The Role We are seeking a **Head of Finance** to serve as a key strategic architect of Offchain's financial future. In this role, you will act as a vital partner to the executive team to drive capital strategy and long-term financial planning. Getting into the details, you will provide a deep assessment of the status quo and an execution plan on how to improve. This leader will institutionalize our financial infrastructure, and will provide the sophisticated clarity required to navigate the complexities of a scaling global ecosystem. You are a visionary who is equally comfortable in the boardroom and the details, capable of transforming financial data into a competitive advantage. --- ### What You'll Do - **Strategic Financial Leadership:** Architect the long-term financial roadmap for Offchain, ensuring our fiscal strategy aligns with ambitious growth targets and ecosystem evolution. - **Capital & Treasury Stewardship:** Lead complex treasury management and capital allocation strategies, optimizing liquidity and risk in a high-growth, digital-asset-centric environment. - **Institutionalize Governance:** Establish enterprise-level standards for financial reporting, audit readiness, and internal controls, transforming the finance function into a pillar of institutional credibility. - **Executive Partnership:** Serve as a core advisor to the executive team, providing data-driven insights and financial modeling that drive high-stakes decision-making and business model optimization. - **Organizational Scaling:** Design and implement a scalable financial tech stack and data infrastructure that automates routine reconciliations and provides real-time visibility into global performance. - **Cross-Functional Orchestration:** Lead high-impact, cross-departmental initiatives — from M&A activity to complex tax structuring — ensuring all workstreams meet the highest standards of financial rigor. - **Audit & Stakeholder Management:** Own relationships with external auditors, tax authorities, and strategic partners, ensuring seamless compliance and sophisticated reporting in a complex regulatory landscape. --- ### What You'll Need - **Proven Executive Tenure:** 10+ years of progressive finance leadership, with significant scale-up experience in high-growth technology environments. - **Strategic Visionary:** A track record of moving beyond the "numbers" to influence company strategy, fundraising, and organizational design at the Board and executive levels. - **High-Agency Leadership:** Experience building, mentoring, and scaling high-performing finance and accounting teams from the ground up. - **Advanced Financial Architecture:** Mastery of complex financial modeling, including the ability to synthesize multifaceted data sets into clear, actionable executive narratives. - **Operational Excellence:** The ability to instill structure and discipline in an ambiguous, fast-paced environment without sacrificing the agility required for a scaling startup. - **Exceptional Communication:** Poise and clarity when presenting to the Board, investors, and external regulatory bodies, with the ability to translate complex financial concepts for non-financial stakeholders. --- ### Nice to Have - **Deep Web3 or Fintech Experience:** A sophisticated understanding of the crypto landscape, including treasury management of digital assets and the nuances of blockchain-native financial operations. --- ### Perks - Remote-first global workforce + NY office - Annual company offsite + team onsites - Professional reimbursement program (facilitates industry conference attendance, certifications, and more) - Medical, dental & vision coverage (US + some other countries) - 401k retirement plan + company match (US only) - Wellness stipend - Home office setup / ergonomic equipment
Offchain
18 days ago
## Product Manager, Core Protocol **Location:** Remote **Department:** Product **Commitment:** Full-time --- At **Offchain Labs**, we aren't just building products: we're leading a movement. As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security, and transparency. At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you're energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you. ### Why Offchain Labs? Offchain Labs is setting the pace for the entire Ethereum ecosystem. We built the **Arbitrum** stack that powers **Arbitrum One**, the most widely adopted Ethereum scaling solution that exists today. Arbitrum's ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain Labs technology to build their own Arbitrum chains. Major players in the space — Robinhood, BlackRock, Ethena Labs, Securitize, Aave, and Apechain — are all using the Arbitrum stack. Arbitrum's thriving ecosystem wouldn't exist without our advanced technology stack. **Arbitrum**, **Prysm**, **ZeroDev** — these aren't just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure. To top it all off? We're backed by **$124 million in funding**. We've demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. --- ### The Role As part of the Product team at Offchain Labs, you will get to work with leaders in the blockchain space solving novel technical, economic, and social challenges. In this role, you'll help drive the roadmap for **Arbitrum Nitro**, a cutting-edge blockchain scaling solution. You'll collaborate closely with our backend engineering team, research team, and company leaders, including our CTO and Head of Product. --- ### What You'll Do - Own and deliver against a scaling-focused and innovation-focused roadmap — ruthlessly prioritizing the changes we ship from bandwidth improvements to broader adoption of EIPs/RIPs, and bringing to market novel, 0-to-1 technologies - Interface directly with our dedicated Research team to turn breakthroughs into finely scoped product changes (or new products), and integrate feedback into our exploratory pipeline - Proactively identify requirements at a technical and non-technical level to ensure continuous product success — from docs, to ecosystem infrastructure, to granular front-end details - Strategically guide and inform our engineering teams, helping source and synthesize feedback from existing projects and users, the ever-evolving market landscape, and underlying technical considerations to prioritize development work - Be a force amplifier for our marketing and partnerships teams to deliver successful but technically sound messaging for new product launches and protocol changes to educate and inform - Integrate across the company, ensuring that our engineering, design, marketing, partnerships, and other teams are tightly aligned --- ### Who You Are - **Experience:** 3-5 years in a PM role or a closely related technical capacity - **Blockchain Enthusiast:** A burning curiosity and/or deep understanding of blockchain technologies - **Communication Maven:** Stellar written and verbal communication skills. Comfortable influencing and collaborating with individuals across the organization - **Technical & Business Acumen:** Capable of diving deep into the technical details while keeping an eye on the broader business objectives - **Team Player:** Flexible, dependable, and thrives in ambiguous situations. Takes ownership when needed - You work well, and even thrive, in uncertain or ambiguous environments. You can make informed decisions with limited information, excel at turning ambiguity into clear, actionable plans, and continuously strive to obtain, synthesize, and productively react to new information to evaluate current priorities and re-navigate if necessary - You have developed or experimented with software, infrastructure, and/or blockchain applications — with side projects, hobbyist projects, and/or hackathons to demonstrate your technical acumen. Bonus points if it's blockchain-related - **Educational Background:** A degree in Computer Science or an Engineering field. Alternatively, hands-on experience in building software products, be it through personal projects or professional ventures - **Industry Experience:** A proven track record of shipping production-grade software, especially targeted at a developer audience. Familiarity with software development processes is crucial. Prior experience at a fast-growing tech company or a software startup is a big plus - Working at a protocol team in the blockchain industry is a plus - Working on distributed systems as a technical contributor is a plus --- ### Perks - Remote-first global workforce + NY office - Annual company offsite + team onsites - Professional reimbursement program (facilitates industry conference attendance, certifications, and more) - Medical, dental & vision coverage (US + some other countries) - 401k retirement plan + company match (US only) - Wellness stipend - Home office setup / ergonomic equipment program --- **Attention Offchain Labs Job Seekers:** This role cannot be performed in California or Colorado. Please be advised that there has been a rise in fraudulent recruiter activities.
21 days ago
## Uniswap Labs – Smart Contract Engineer **Uniswap Labs** is a core contributor to the **Uniswap Protocol**, the world’s largest DEX, with over $4 trillion in volume across 17 chains. We build products that help millions access the protocol, including the Uniswap Web App, Wallet, and Trading API. Uniswap Labs is also the primary technical provider for **Unichain**, a DeFi-native Ethereum Layer 2 built to be the home for liquidity across chains. When you join Uniswap, you become part of a team that's reshaping the way value flows on the internet. We are looking for an experienced **smart contract engineer** to help us build the next generation of the Uniswap Protocol. You will be responsible for implementing and designing smart contracts for the next generation of the most popular decentralized trading protocol on Ethereum. *We are headquartered in SoHo in New York City and this role has the option to be partially or fully remote.* --- ### Responsibilities - Contribute to the Uniswap protocol by designing and implementing smart contracts - Research, apply, and invent new smart contract paradigms - Design and implement peripheral mechanisms to the Uniswap protocol ### Requirements - 4+ years of experience building and releasing production grade Solidity contracts - A deep understanding of the Ethereum Virtual Machine - Prior experience deploying complex smart contract systems to the Ethereum mainnet ### Nice to Haves - Degree in math or computer science - Experience implementing complex math in Solidity - Love for unicorns :) --- ### Compensation & Benefits **Minimum full-time salary:** $226,000 – $282,000 *Disclosure in accordance with New York City's Pay Transparency Law.* Full-time employees at Uniswap Labs are also eligible for other compensation elements, including tokens, and benefits, dependent on the position type. **Full-Time employee benefits include:** - Company-paid medical, dental, & vision for you and your dependents - Wellness offerings including a partnership with Equinox Fitness Clubs - 401(k) with 4% employer contribution - Annual $1,500 education stipend - Unlimited and encouraged time off - Up to 16 weeks paid parental leave - Home office setup stipend for remote employees - Daily lunches at NY headquarters *(All benefits are subject to applicable taxes and based on eligibility.)* --- ### Equal Opportunity & E-Verify Uniswap Labs is committed to diversity in our workforce and is proud to be an **Equal Opportunity Employer (EEO)**. We provide employment opportunities without regard to age, race, color, ancestry, national origin, religion, disability (including gender dysphoria and similar gender-related conditions), sex, gender identity or expression, sexual orientation (including actual or perceived heterosexuality, homosexuality, bisexuality, and asexuality), veteran status, military status, domestic violence victim status, reproductive health decision making or any other protected category. In addition, Uniswap Labs participates in **E-Verify**. You can view the E-Verify poster [here] and the Right to Work poster [here]. --- **Compensation Range:** $226K – $282K When applying, mention the word **CANDYSHOP** to show you read the job post completely.
OP Labs PBC
21 days ago
## OP Labs **OP Labs** builds **Optimism**, an open-source blockchain network that powers the next generation of financial infrastructure. Hundreds of companies, from the world's largest enterprises like **Sony**, **Coinbase**, **Kraken**, **Uniswap**, **OKX**, and **Bitpanda** to the most ambitious early-stage builders, use the OP Stack to launch their own blockchains and bring their users onchain. Today, over 65% of Layer 2 activity on Ethereum runs through the OP Stack. We are a small team building at the speed of the ecosystem we support. We're remote-friendly but the NYC office is our center of gravity. We've raised $178M from **a16z**, **Paradigm**, and others. We have our work cut out for us and are looking for exceptional people to join us. --- ## Role and Responsibilities Infrastructure partnership development is vital for the OP Stack. This role, the **Partnerships Lead, Blockchain Infrastructure**, is about owning the entire lifecycle of critical partnerships for the OP Stack ecosystem. You will find opportunities, close deals, and manage relationships with key blockchain infrastructure providers. This requires a unique mix of commercial, strategic, and technical expertise to navigate the complex crypto landscape. ### What are the role responsibilities? - Own the end-to-end lifecycle (sourcing, deal negotiation, integration, and partner management) for critical ecosystem infrastructure partnerships, including: - On/off ramps and payments - Compliance, insurance, and risk infrastructure - Market makers, liquidity infrastructure, and selected CEX relationships - Stablecoin and fiat-rail related partnerships - Collaborate with the Product team to define and launch new products that leverage third-party capabilities/technology, specifically in areas like Privacy and CGT - Create and own the strategic roadmap for this section of the infrastructure partner ecosystem - Proactively communicate key ecosystem developments, potential partnership blockers, and strategic updates to executive leadership --- ## What skills do you bring? ### Partnership & Business Acumen - Deep experience managing and scaling strategic partnerships in the crypto infrastructure space, with a track record of owning complex categories end-to-end - Strong commercial skills in deal structuring and negotiation for multi-party or multi-chain deals, balancing partner economics with ecosystem objectives - Systems-level reasoning, including an understanding of network effects, liquidity loops, and value exchange within the ecosystem ### Product & Technical Fluency - Domain technical fluency (infra or DeFi), comfortable engaging with protocol and infra engineers - Strategic product thinking (build-partner-buy decisions) and the ability to run product discovery with partners ### Execution & Communication - High-agency cross-functional operator, proficient at driving work across internal teams and external partners to ship integrations and create measurable impact - Clear written and verbal communicator, able to write concise strategy documents and integration plans to keep all stakeholders aligned - Proven ability to manage multi-quarter partnership roadmaps and drive clarity in ambiguous environments - A genuine passion for blockchain technology, decentralization, and the future of open systems --- ## What will you like about us? - We take care of our employees. Competitive compensation, fully paid medical, dental, and vision, and a 4% 401K match - We take pride in the accomplishments of our teammates and support each other in doing the best work of our careers - Our team is a diverse group of people from varied backgrounds. We cherish our eclecticism and consider it a great strength - We're remote-friendly with an NYC office where we like to collaborate in person - We think long-term. Our founders have been scaling Ethereum since 2015 - Learn more about our interviewing here! --- ## Please Note We are aware of fraudulent individuals falsely claiming to represent **OP Labs** in recruitment activities. - All official communication will come from an **@oplabs.co** email address, or from a verified LinkedIn profile - We will never ask for payment, banking information, or personal identification details at any stage of our hiring process - All current openings are listed exclusively on our official careers page and linked from our verified social profiles - If you're ever unsure about a communication that claims to be from OP Labs, please contact us directly at **people@oplabs.co** to verify authenticity Your safety and trust are very important to us. Thank you for helping us prevent fraud. *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*
Offchain Labs
24 days ago
# Senior Security Engineer (Offensive) **Location:** Remote **Department:** Engineering **Commitment:** Full-time **Workplace Type:** Remote --- ## About Offchain Labs At Offchain Labs, we aren't just building products: we're leading a movement. As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security, and transparency. At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you're energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you. ### Why Offchain Labs? Offchain Labs is setting the pace for the entire Ethereum ecosystem. We built the Arbitrum stack that powers **Arbitrum One**, the most widely adopted Ethereum scaling solution that exists today. Arbitrum's ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain Labs technology to build their own Arbitrum chains. Major players in the space — **Robinhood**, **BlackRock**, **Ethena Labs**, **Securitize**, **Aave**, and **Apechain** — are all using the Arbitrum stack. Arbitrum's thriving ecosystem wouldn't exist without our advanced technology stack. **Arbitrum**, **Prysm**, **ZeroDev** — these aren't just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure. To top it all off? We're backed by **$124 million in funding**. We've demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. --- ## The Role - As a **Security Engineer** at Offchain Labs, you will emulate the real-world tactics, techniques, and procedures of sophisticated adversaries to surface vulnerabilities across our infrastructure and ecosystem tools. - You'll run hands-on penetration tests, lead red team exercises, and work side-by-side with blue team partners to test, refine, and strengthen detection and response capabilities. - Your efforts will directly shape how Offchain Labs designs, launches, protects, and achieves compliance for the infrastructure that powers millions of users and applications — including key standards such as **SOC 2**. --- ## What You'll Do - Conduct comprehensive penetration tests and code audits across cloud environments (**AWS**), internal infrastructure, and backend applications. - Collaborate with detection engineering, threat intelligence, and incident response groups to review security controls, uncover coverage gaps, and enhance overall detection quality. - Build, maintain, and evolve custom offensive tools, scripts, and automation frameworks to increase assessment speed. - Offer offensive security expertise during incident investigations, including log analysis and root cause reviews. - Keep up with evolving threats, vulnerabilities, and attack methods; share research internally and engage with the wider security community. - Own offensive security projects from start to finish, mentor junior team members, and cultivate a culture of ongoing learning and knowledge exchange. --- ## What You'll Need - 5+ years of experience in offensive security, penetration testing, red teaming, or a closely related field. - Mastery of **AWS** and specific attack techniques and configuration weaknesses. - Solid understanding of adversary tactics and frameworks like **MITRE ATT&CK**. - In-depth knowledge of web application security, including **OWASP Top 10**, **ASVS**, and common vulnerability categories. - Proficiency using offensive security tools such as **Burp Suite**, **Cobalt Strike**, or equivalent frameworks. - Strong programming skills in **Python**, **Go**, or similar languages, with proven experience developing tools or automation. - Excellent written and verbal communication skills, with the ability to present complex technical details as clear, risk-focused recommendations. - A natural ability to think like an attacker — creative, determined, and skilled at assessing risk across complex systems. --- ## Perks - Remote-first global workforce + NY office - Annual company offsite + team onsites - Professional reimbursement program (facilitates industry conference attendance, certifications, and more) - Medical, dental & vision coverage (US + some other countries) - 401k retirement plan + company match (US only) - Wellness stipend - Home office setup / ergonomic equipment program --- ## Important Notes **Attention Offchain Labs Job Seekers:** This role cannot be performed in California or Colorado. Please be advised that there has been a rise in fraudulent recruiter activities, particularly within the Web3 space. If you would like to confirm whether someone is an OCL employee or the legitimacy of an offer you received, please email [email protected] At Offchain Labs, we are committed to building a welcoming and supportive workplace for all employees, regardless of their background or identity. We strive to create an environment where everyone feels valued and has an equal opportunity to succeed and thrive. We encourage candidates from all walks of life to apply and join our team. *We may use artificial intelligence (AI) tools to support parts of the hiring process.*
Signature IT World Inc
24 days ago
## **Role: Blockchain Developer (DeFi and Cryptography)** ## **Location:** NC (Remote) ## **Duration:** 12 Months (Extendable) --- ### **Job Summary** We are seeking a highly skilled Blockchain Developer to join our core engineering team. In this role, you will be responsible for designing, developing, and deploying secure, high-performance decentralized finance (DeFi) protocols. You will bridge the gap between complex financial logic and low-level blockchain implementation, ensuring that our systems are not only innovative but also mathematically sound and resilient to attacks. As a specialist in DeFi and Cryptography, you will take ownership of the full development lifecycle—from whitepaper logic and architectural design to mainnet deployment and post-launch optimization. --- ### **Key Responsibilities** - **Smart Contract Engineering:** Design and implement robust smart contracts for DeFi primitives such as automated market makers (AMMs), lending pools, and cross-chain bridges. - **Protocol Security:** Apply advanced cryptographic principles (e.g., digital signatures, hashing, zero-knowledge proofs) to ensure data integrity and user privacy. - **System Architecture:** Design scalable back-end architectures that interface seamlessly with Ethereum, Layer 2 solutions, or Rust-based chains. - **DeFi Innovation:** Research and implement cutting-edge DeFi mechanisms including flash loans, yield farming strategies, and algorithmic stablecoin logic. - **Audit & Quality Assurance:** Conduct rigorous unit testing, integration testing, and formal verification to eliminate vulnerabilities before deployment. - **Collaboration:** Work closely with front-end engineers to integrate Web3 providers and with UI/UX designers to create seamless decentralized experiences. --- ### **Preferred Qualifications** - Experience with Layer 2 scaling solutions (Optimism, Arbitrum, ZK-Rollups). - Familiarity with formal verification tools and smart contract auditing processes. - Contributions to open-source Web3 projects or active participation in the DeFi research community. - Understanding of financial modeling and quantitative analysis. --- ### **Mandatory Skills** - **Blockchain Developer with DeFi and Cryptography experience:** Proven track record of shipping production-grade decentralized applications. - **Multilingual Programming:** Professional proficiency in Solidity and Rust, complemented by strong JavaScript/TypeScript or Python for tooling and testing. - **Core Architecture:** Deep understanding of blockchain internals, including consensus mechanisms (PoS, PoW), state machines, and gas optimization techniques. - **DeFi Domain Expertise:** Comprehensive experience with DEXs, liquidity provisioning, staking, derivatives, payments, lending, and complex tokenomics/token systems. - **Cryptography Fundamentals:** Solid grasp of symmetric/asymmetric encryption, elliptic curve cryptography (ECC), and secure key management. - **Debugging & Testing:** Expert ability to test, simulate, and fix complex bugs in distributed environments using frameworks like Hardhat, Foundry, or Anchor. --- ### **Education** M.S./Ph.D. in Computer Science (Formal Methods/Logic) or Computational Mathematics. --- *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*