Solana Jobs
110 jobs found
Today
## Location: New York (Office) ## On-site | Full-time ## Compensation: $200K - $250K Our client is a high-growth fintech startup building a streamlined trading application designed to bridge the gap between complex on-chain assets and everyday users. The platform provides instant access to digital assets without the friction of external wallets or bridges, while offering advanced social trading features and institutional-grade execution data. The engineering team is composed of high-caliber, crypto-native professionals with backgrounds from industry leaders such as **dYdX**, **Uniswap**, and **OpenSea**. Following a recent move to a spacious new office in Soho, the organization is looking for a **Staff Trading Infrastructure Engineer** to spearhead the evolution of their trading infrastructure. This role is focused on the technical frontier of transaction speed, MEV prevention, and liquidity routing. ## Key Responsibilities - **Infrastructure Optimization:** Lead the development and overhaul of transaction landing infrastructure to ensure industry-leading speed and reliability - **Routing & Solvers:** Design and implement proprietary routing systems and cross-chain solvers to optimize swap efficiency for users - **Feature Development:** Architect and deploy advanced trading functionalities, including cross-chain limit orders and custom gas sponsorship infrastructure - **Strategic Planning:** Autonomously identify bottlenecks in current trading flows and execute technical roadmaps to maintain a competitive edge in a multichain environment - **Technical Leadership:** Serve as a subject matter expert for a lean team of frontend and backend engineers, maintaining high standards for code quality and performance ## Requirements - **Experience:** Minimum of 6+ years of professional software engineering experience, ideally operating at a Staff level or higher - **Domain Expertise:** Deep understanding of blockchain internals, specifically regarding how to land transactions in highly competitive environments - **Ecosystem Knowledge:** Strong experience with **Solana** is highly preferred, though exceptional candidates with deep expertise in other major ecosystems will be considered - **Problem Solving:** Proven ability to manage the entire lifecycle of complex infrastructure projects—from conceptualization to deployment—with minimal supervision - **Location:** Ability to work in-person at the client's Soho office in New York City. The organization maintains a strong in-person culture to foster collaboration and rapid iteration - **Mindset:** A curious, crypto-native approach with a genuine interest in the future of multichain interoperability ## Benefits - **Competitive Compensation:** Highly competitive salary and equity packages - **Prime Location:** Modern, spacious office located in the heart of Soho, NYC - **High-Impact Environment:** Opportunity to work alongside a small, elite team of engineers from top-tier crypto protocols - **Cutting-Edge Tech:** Direct involvement in shaping the infrastructure of a next-generation trading platform Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search. ## Commitment to Equality and Accessibility At **MLabs**, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city. **MLabs Ltd** collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd's Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city. When applying, mention the word **CANDYSHOP** to show you read the job post completely.
Interstice Digital
1 day ago
## Track Record by Interstice Digital You don't need a fund to start building one. **Track Record by Interstice Digital** builds the infrastructure that converts your trading returns into something allocators can act on — across crypto, perps, prediction markets, sports betting, obscure tokens, and structured products that traditional finance hasn't figured out how to price. You've been finding the alpha. Now it's time to get paid for it. **Track Record by Interstice Digital** is looking for independent traders who are ready to turn a verifiable trading history into a fundable career. We build the infrastructure that converts your returns into something allocators can actually act on. ### What this role looks like - You trade what you know across any combination of perps, prediction markets, sports betting, crypto spot and derivatives, or structured products - We timestamp and verify every trade on-chain - When your track record qualifies, we unlock compliance infrastructure, prime brokerage access, and introductions to outside capital ### What we're looking for - A documented edge in at least one asset class - Consistent returns you can stand behind - No interest in working for someone else This is not a job. It's the alternative to one. ### Responsibilities - Execute trades across one or more asset classes including perpetual futures, prediction markets, sports betting, crypto spot and derivatives, and structured products - Connect trading accounts to the Track Record platform for automated performance verification - Develop and refine a trading thesis with a repeatable edge - Manage position sizing and risk within your own defined parameters - Meet periodic performance reporting requirements ### Qualifications - Active trading experience across one or more asset classes including perpetual futures, prediction markets, sports betting, crypto spot and derivatives, or structured products - Unique trading thesis with a demonstrable edge in at least one market - Familiarity with relevant platforms and infrastructure including Binance, Bybit, OKX, Coinbase Advanced, Kraken, Hyperliquid, dYdX, GMX, Drift, Vertex, Gains Network, Aevo, Synthetix, Polymarket, Kalshi, Manifold, PrizePicks, DraftKings, FanDuel, Pinnacle, Bet365, MetaMask, Phantom, Rabby, Rainbow, Stargate, Across, Hop, LayerZero, Aave, Uniswap, Pendle, Ethena, Morpho, Maple, or Spark - Comfortable operating across Ethereum, Solana, Base, Arbitrum, Optimism, Avalanche, BNB Chain, Polygon, Sui, or Aptos - Self-directed; able to operate independently without institutional support When applying, mention the word **CANDYSHOP** to show you read the job post completely.
1 day ago
## Location North America ## Employment Type Full time ## Location Type Remote ## Department Engineering --- ### About Helius **Helius** is building the core infrastructure for Solana – empowering developers to create the next generation of crypto-powered applications. Our mission is to accelerate the development of internet capital markets by making it easier, faster, and more intuitive to build on-chain. Thousands of teams – from early-stage startups to industry leaders like **Coinbase**, **Phantom**, and **Jupiter** – rely on Helius APIs, webhooks, and indexing tools to power their products. Backed by **Haun Ventures**, **Founders Fund**, and **Foundation Capital**, we’re a small, senior team obsessed with performance, simplicity, and scalability in decentralized systems. Read our Helius Manifesto to see how we work and what we value. --- ### About the Role We're looking for a **Staff Performance Engineer** to own the most latency-critical systems at Helius. These services are responsible for streaming Solana's state changes across our global network and providing real-time data APIs to traders, exchanges, and DeFi protocols. They handle massive throughput, and small optimizations create outsized impact. You'll lead performance strategy, drive cross-team architectural decisions, and dig into the hardest bottlenecks to make our products faster and more efficient. The problems are challenging, the expectations are high, and the improvements you ship will be felt across the Solana ecosystem. --- ### What You'll Do - Set technical direction for performance across Helius' most latency-critical systems, influencing architecture and engineering standards company-wide - Profile, tune, and optimize the low-level Rust services that power traders and financial institutions - Design systems for low-latency environments where microseconds matter - Lead cross-team initiatives to identify and eliminate systemic performance bottlenecks - Own foundational systems end-to-end and keep them simple, reliable, and easy to operate - Mentor engineers and raise the bar on performance engineering and operational rigor --- ### What You'll Bring - 8+ years of systems-level engineering in **Rust** or **C++** - Deep experience tuning high-throughput, latency-sensitive systems - Track record of leading ambiguous, cross-team technical projects and shipping durable systems - Strong intuition for hardware, operating systems, and network performance - Ability to operate with high ownership on difficult technical problems and make decisions legible to stakeholders - A desire to push performance to the limit, not just make it "good enough" --- ### Nice to Have - Experience in trading systems (DeFi or TradFi) - Background in performance-obsessed environments like **Cloudflare**, **Netflix**, or similar --- ### Why Helius? - **High-impact work:** Your code will power applications used by millions across the Solana ecosystem, including Coinbase, Jupiter, and Phantom - **Serious engineering:** Build fast, reliable systems and user experiences across distributed infra and high-throughput backends - **Ownership & growth:** Lead critical initiatives, influence architecture and product direction, and take on more responsibility as the company scales - **Remote-first flexibility:** Work where you’re most effective with a flexible, fully distributed team - **Competitive comp & perks:** Market-leading salary, meaningful equity, generous vacation, wellness budgets, and support for learning and travel - **Mission-driven team:** Join ambitious builders who move fast, take ownership, and are shaping the future of decentralized apps --- *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*
3 days ago
## **Issuance Engineering Lead** ### **About M0** M0 is the shared infrastructure where businesses launch their own branded stablecoins and financial institutions power them. Built on a common standard, every stablecoin on M0 is interoperable and liquid from day one — giving businesses programmable control over how money moves in their ecosystems, and giving financial institutions the most advanced issuance stack in the industry. M0 is seeking an **Issuance Engineering Lead** who will play a fundamental role in shaping the future of our organization. As Issuance Engineering Lead, you will own the smart contract and backend systems that power M0 stablecoin issuance across EVM and non-EVM chains (Solana and others). You will lead and build out the team responsible for making issuance fast, safe, and capital-efficient — from on-chain programs to the backend systems, APIs, and UIs that sit on top of them. The ideal candidate is a self-driven engineering lead with strong ownership instincts and a bias for action, equally comfortable in EVM and non-EVM environments, who brings substantial expertise across blockchain applications and infrastructure and thrives in fast-paced settings. ### **Key Responsibilities** - Build and lead a high-caliber engineering team delivering on-chain programs and backend services. - Architect and ship smart contracts across EVM and non-EVM chains (Solana and others) with a high bar for precision and safety. - Mentor engineers and set the technical direction for the issuance stack. - Drive code and design reviews, raising the quality bar across the team. - Prepare codebases for third-party audits with comprehensive tests, invariants, AI-assisted review, and fuzz testing harnesses. ### **Qualifications** - 7+ years of software engineering experience shipping production DeFi and backend systems. - 2+ years leading engineering teams, or a clear track record suggesting you'll pick it up quickly. - Proven history of deploying and maintaining complex, high-precision on-chain systems in production. - Production experience writing backend systems in Rust. - Solid Solidity and EVM development experience, combined with strong familiarity with the SPL Token program, Token-2022, and Associated Token Accounts. - Experience with cross-chain messaging and bridging protocols — Wormhole NTT, LayerZero, Hyperlane, or Chainlink CCIP. ### **Nice to Have** - Prior experience at a high-growth digital assets company or DeFi protocol — ideally one handling stablecoin issuance, lending, or RWAs. - Experience with security tooling and audit workflows for EVM and non-EVM chains (Solana and others). - AI-curious and fluent — uses modern AI tooling to move faster and ship better. - Open-source contributions to on-chain programs, SDKs, or developer tooling. - Degree in computer science or a related field. ### **Compensation** - Competitive compensation (base salary with equity/token grant) commensurate with experience. ### **Benefits** - **Global team and flexibility:** Join a truly global team with the flexibility to work remotely or from one of our hubs in NYC or Berlin. - **Health and wellness:** Enjoy comprehensive healthcare insurance coverage as well as a wellbeing allowance and gym membership to support your physical and mental health. - **Customizable IT setup:** Tailor your workspace with access to top-notch IT equipment. - **Professional development:** Benefit from an annual development budget to enhance your skills and grow professionally, including opportunities to participate in conferences and on-site company events worldwide. When applying, mention the word **CANDYSHOP** to show you read the job post completely.
UseBlocky
3 days ago
## Product Manager – Blockchain Real Estate Platform ### Job Summary We are seeking an experienced Product Manager to lead the development and growth of a blockchain-powered real estate platform. The ideal candidate will bridge business strategy, real estate domain expertise, and blockchain technology to deliver secure, scalable, and user-centric digital property solutions. You will work closely with engineering, design, legal, compliance, marketing, and executive stakeholders to define product vision, prioritize features, and execute roadmap initiatives related to property tokenization, smart contracts, digital ownership, transactions, and decentralized infrastructure. ### Key Responsibilities #### Product Strategy & Vision - Define and execute the product roadmap for the blockchain-based real estate ecosystem. - Identify market opportunities in property technology (PropTech), tokenized assets, digital ownership, and decentralized finance (DeFi). - Translate business objectives into scalable product initiatives. - Conduct competitor analysis and user research to refine product positioning. #### Platform Development - Lead end-to-end product lifecycle management from ideation to launch. - Collaborate with engineering teams on: - Smart contract functionality - Wallet integrations - Tokenization mechanisms - Blockchain infrastructure - Transaction systems - KYC/AML workflows - Prioritize features based on business impact, technical feasibility, and user value. #### Stakeholder Management - Coordinate with: - Blockchain developers - UI/UX designers - Real estate experts - Legal and compliance teams - Marketing and sales teams - External vendors and partners - Present roadmap progress and product metrics to leadership. ### Required Qualifications - Bachelor’s degree in Business, Computer Science, Engineering, or related field. - 3–7+ years of Product Management experience. - Experience building fintech, PropTech, SaaS, or blockchain products. - Strong understanding of: - Blockchain ecosystems - Smart contracts - Tokenization - Wallets and digital assets - Decentralized applications (dApps) - Familiarity with Agile/Scrum methodologies. - Excellent communication and stakeholder management skills. - Ability to translate technical concepts into business solutions. ### Preferred Qualifications - Experience with blockchain platforms such as: - Ethereum - Polygon - Solana - Hyperledger - Understanding of: - Real estate investment workflows - Property management systems - NFT-based ownership models - DeFi protocols - Experience with Web3 tools and APIs. - Knowledge of regulatory frameworks related to digital assets and property transactions. ### Key Competencies - Strategic thinking - Problem-solving - Leadership and collaboration - User-centric mindset - Analytical decision-making - Risk assessment - Communication and negotiation skills When applying, mention the word **CANDYSHOP** to show you read the job post completely.
Ellipsis Labs
4 days ago
## **Ellipsis Labs – Marketing Role** **Ellipsis Labs** is a profitable, venture-backed New York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our long-term goal is to build a better financial system. Our flagship product, **Phoenix Perpetuals**, brings professional-grade perpetual futures to Solana. Building on our experience developing efficient markets, Ellipsis Labs also operates **SolFi**, a proprietary automated market maker that provides efficient liquidity for key trading pairs. Our foundational product, **Phoenix Legacy**, is a limit order book on the Solana blockchain that established our expertise in operating high-performance markets. Combined, these products have facilitated over **$285B** in trading volume across Solana markets. Ellipsis Labs is seeking a marketer to own and grow our brand presence across social media, content, and community. This is a role for someone who moves fast, has strong creative instincts, and wants to build something from the ground up. ### In this role, you will: - Own Ellipsis Labs' social media presence end-to-end, including strategy, content creation, and performance across **X**, **Telegram**, and other relevant channels - Produce high-quality content independently, including motion graphics, short-form video, and written copy, using modern creative tools - Develop and track KPIs for growth and engagement, and use that data to sharpen strategy over time - Plan and execute marketing campaigns around product launches, partnerships, and ecosystem events - Represent Ellipsis Labs at industry events and in external conversations, with the presence and confidence to command a room - Collaborate closely with engineering and product to translate technical concepts into compelling content for a crypto-native audience - Support partnership and community initiatives, contributing to how we show up across the DeFi ecosystem ### Qualifications #### Required - Demonstrated experience running social media for a brand, project, or product - Familiarity with **DeFi**: you understand how protocols work, what traders care about, and how to speak to crypto-native audiences - Strong design skills — motion, graphic, or both — with a portfolio that shows what you can do - Ownership mindset: you see projects through from idea to execution without needing to be managed - Metrics-driven: you think in terms of KPIs even when none exist yet, and you push to create them - Comfortable with AI-native workflows and actively using modern tools to move faster and produce better work - Compelling communicator in writing and in person #### Preferred - Experience with or fluency in **perpetual futures** and on-chain trading - Event planning experience - Copywriting background - Existing presence or network in the **Solana** or broader DeFi ecosystem - Experience at a DeFi protocol, crypto exchange, or trading firm --- *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*
## **Corporate Counsel** **Join R3 as Corporate Counsel:** own commercial contracts, guide go-to-market, shape tokenisation and Web3 products, and enable rapid, compliant growth. **Department:** Legal and Compliance **Role:** Other **Locations:** R3 London, R3 Remote **Remote status:** Hybrid --- ### **About R3** We're building the on-ramp for the next trillion dollars of assets to move on-chain. R3 bridges TradFi and DeFi through institutional-grade RWA yield vaults, fully composable and integrated into Solana DeFi. ### **The Role** You'll be R3's day-to-day legal partner. Own commercial contracting end-to-end, advise on go-to-market activity, and help shape the legal framework for products at the cutting edge of tokenisation, digital assets and Web3. High-visibility, high-autonomy. You'll work close to product and revenue in a fast-moving environment, developing expertise in one of the most exciting areas of the financial technology landscape. ### **What You'll Do** - Draft, negotiate and manage the full spectrum of commercial agreements: SaaS licences, MSAs, partnership and reseller arrangements, NDAs, DPAs and DORA addendums. - Represent R3 in discussions and negotiations with the independent Foundation which governs the Protocol we are building, being highly collaborative day-to-day whilst ensuring R3's interests are protected. - Be the trusted legal partner to sales, business development and marketing, moving at commercial pace, structuring deals creatively, and giving commercial advice that moves things forward. - Review product, marketing and GTM collateral for legal and regulatory risk. - Support strategic projects in tokenisation, DeFi and Web3, bringing in external counsel where needed. - Build the infrastructure - templates, playbooks, internal guidance - that enables the business to move faster within sensible risk tolerance. - Manage external counsel where instructed, keeping it focused and cost-effective. ### **What You'll Bring** **Essential:** - You are a qualified solicitor in England & Wales (or equivalent common law jurisdiction with the right to practice in the UK), with 5+ years PQE from private practice, in-house, or both. - Solid general commercial law experience, with a proven track record of drafting technology contracts, ideally in a financial environment. - Working knowledge of digital assets, DeFi and Web3, including familiarity with on-chain product structures such as yield vaults, token frameworks, and SPV/fund-wrapper arrangements used in RWA tokenisation. - Sharp commercial instincts; you find solutions, not blockers. - Proven ability to support fast-moving sales and marketing teams: prioritising hard, pushing back when needed, delivering under pressure. - Confident operating as the only lawyer in the room, while knowing when to escalate. - Clear communicator who can translate legal complexity into plain guidance. **Desirable:** - Background in traditional financial services or financial market infrastructure (TradFi) in either private practice or in-house. - Experience advising on token generation events (TGEs) or utility token structures, and familiarity with relevant UK, EU or US regulatory frameworks (e.g. UK financial promotions regime, MiCA, MAS, MAR, AML/CTF). - Experience with UK GDPR, IP licensing or open-source software issues. - Prior in-house experience at a tech, fintech or financial services business. ### **Why R3** - Real autonomy from day one - your work will directly shape how we operate and go to market. - A front-row seat on the tokenisation and digital assets space, working with leading institutional clients and partners. - A culture that values pragmatism and ownership over process. - Competitive salary, equity, and benefits. --- ### **About R3** **Building digital financial markets of tomorrow** R3 leads the world in tokenizing real-world assets and delivering interoperability that bridges $10bn+ in regulated assets with the scale of public blockchains - unlocking compliant, real-world DeFi. Our solutions are foundational to the evolution of global markets, driving network effects that create lasting value. **Founded in:** 2014 **Co-workers:** 80+ --- **Contact:** Rhea Beattie - Global Talent Acquisition Lead – Operations *When applying, mention the word CANDYSHOP to show you read the job post completely.*
Lemon.io
8 days ago
## Senior Blockchain Developer (Remote) Are you a talented **Senior Developer** looking for a remote job that lets you showcase your skills and earn competitive compensation? Look no further than **Lemon.io** — the marketplace that connects you with hand-picked startups in the US and Europe. ### What We Offer - The rate depends on your seniority level, skills, and experience. We've already paid out over **$11M** to our engineers. - No more hunting for clients or negotiating rates — let us handle the business side so you can focus on what you do best. - We'll manually find the best project for you according to your skills and preferences. - Choose a schedule that works best for you. It's possible to communicate async or minimally overlap within team working hours. - We respect your seniority — expect no micromanagement or screen trackers. - Communicate directly with the clients. Most of them have technical backgrounds. - We will support you from the time you submit the application throughout all cooperation stages. - Most of our projects involve working in a fast-paced startup environment. We hope you like it as much as we do. - Through our community, we will connect you with the best developers from more than **71 countries**. We are currently looking for **Senior Blockchain Developers** for different projects. ### Requirements – Senior Blockchain Developer with Ethereum/Ethers/Web3 - 4+ years of software development experience. - 3+ years of Ethereum ecosystem expertise, **Ethers.js** or **Web3.js** (required). - Experience with **React** and **Node.js**, including at least 2 commercial projects. ### Requirements – Senior Blockchain Developer with Solana - 4+ years of software development experience. - 2+ years of expertise in **Solana** (required). - Experience with **Smart contracts** is a must. ### Other Requirements - **Strong technical skills:** As a Senior Developer, you are expected to be able to create projects from scratch and have a deep understanding of application architecture. - **Clear and effective communication in English** — advanced ability to discuss business tasks, justify decisions, and communicate issues. Good self-presentation is also essential for upcoming client calls. - **Strong self-organizational skills** — ability to work full-time remotely with no supervision. - **Reliability** — we want to trust you and expect that you won't let us or the client down. - **Adaptability and flexibility** — the ability to onboard the project promptly after accepting it and start delivering results quickly. ### Other Opportunities We have different projects for **Senior Full-Stack Developers**. If you have 4+ years of commercial experience in software development and you are fluent with any of the following, we would be happy to communicate and provide you with a project that matches your experience: - AI Agent Architect - AI Automation Architect - React & Python - React & Golang - React & Java - React & Ruby - PHP & Vue - Vue & Node.js - React & .NET - Android & iOS - Angular & Node.js - Vue & .NET - Python & Vue - DevOps with Azure DevOps - MLOps - Data Science - Angular & PHP - Angular & .NET - Symfony & React - Symfony & Vue - Symfony & Angular - Symfony & JavaScript & Next.js & TypeScript - Data Analysis - React & PHP - Data Engineering - AI Engineering - Data Annotation - React & Node - Svelte & Python - Svelte & Node - Svelte & TypeScript - Rust - Shopify & JavaScript - Vue & Nuxt - PHP & Laravel - .NET & C# - Unreal Engine & C++ - Python & LLM - Unity - Machine Learning Engineering Just apply, and we will share more details with you. ### Important Notes - We do not provide visa assistance, and our cooperation model does not include the benefits typically offered with direct hire. - We work with developers from **75+ countries** across different regions: Europe, LATAM, the U.S. (if you have a completed W-9 form), Canada, Asia (Japan, Singapore, South Korea, the Philippines, Indonesia, Malaysia, Vietnam, Thailand, South Africa, and Israel), Oceania (Australia, New Zealand, and Papua New Guinea), Morocco, and the UK. However, there are some exceptions. **At the moment, we don't have a legal basis to accept applicants from the following countries:** - **European:** Hungary, Iceland, Liechtenstein, Kosovo, Belarus, Russia, and Serbia. - **Latin America:** Cuba and Nicaragua. - Most Asian countries and Africa. We expand and shorten the list of exemptions regularly. --- *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*
Fireblocks
9 days ago
## **Backend Engineer - FinApps Access** 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 Fireblocks** Fireblocks is on a mission to enable every business to easily and securely access digital assets and cryptocurrencies. As a leading provider in the digital asset space, we are committed to fostering a diverse and inclusive workforce that mirrors the global clientele we serve. ### **About the Team** The **FinApps Access** team at Fireblocks builds the backbone of on-chain access for some of the world's largest financial institutions and crypto-native organizations. We operate at the intersection of blockchain protocol engineering and enterprise-grade reliability — designing systems that route, protect, and optimize transactions across dozens of chains at scale. You'll work on mission-critical infrastructure powering DeFi connectivity, multi-chain integrations, transaction execution pipelines, and on-chain data access — with direct impact on how billions of dollars flow through decentralized networks every day. ### **What You'll Do** - Design and build robust, scalable backend services supporting high-volume on-chain transaction flows across multiple blockchain networks — both EVM and non-EVM. - Own end-to-end development of backend components and APIs — from architecture decisions to production deployment. - Lead integrations with DeFi protocols, on-chain data sources, and blockchain nodes across a wide range of chains and ecosystems. - Research and evaluate emerging blockchain technologies, protocols, and standards to keep Fireblocks at the cutting edge. - Optimize existing production systems for performance, reliability, and security — reducing latency and increasing throughput. - Collaborate closely with product, protocol research, and platform engineering teams to deliver high-quality solutions on time. - Drive features from inception through to delivery at scale, taking full ownership of the product lifecycle. ### **What You'll Bring** - 7+ years of experience as a Backend or Full Stack Engineer. - Bachelor of Science (B.Sc.) or equivalent degree/experience. - **Blockchain and Web3 experience are a must** — including deep understanding of transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data. - Proven experience working across multiple blockchain ecosystems — EVM-compatible chains (Ethereum, Polygon, Arbitrum, Base, etc.) as well as non-EVM chains such as Solana, TON, Tron, or similar. - Proficiency in **Node.js** and **TypeScript**. - Experience designing and operating microservices in production CI/CD environments. - Strong understanding of security principles, cryptography, and best practices in a blockchain context. - Familiarity with DeFi protocols — AMMs, lending markets, bridging infrastructure, or on-chain routing — is a strong advantage. - Experience with Web3 tooling and libraries (ethers.js, viem, web3.js, Solana web3.js, etc.). - Demonstrated experience taking products from inception to delivery at scale. - Full stack experience (React, frontend development) — a nice to have. ### **About You** - You think in systems and care deeply about correctness, reliability, and scale. - You're comfortable navigating ambiguity and can drive technical decisions with limited oversight. - You have a natural curiosity for how blockchain protocols work under the hood — and you actually read the specs. - You thrive in fast-moving environments and can balance shipping velocity with long-term code quality. - You communicate clearly and collaborate effectively across engineering, product, and research. ### **Why Fireblocks** - Work at the frontier of blockchain infrastructure, with real impact on how DeFi scales for institutional and retail users. - Tackle genuinely hard engineering problems — multi-chain routing, on-chain data indexing, protocol integrations, and more. - Collaborate with world-class engineers, protocol researchers, and product minds in a fast-growing global company. - Competitive compensation, meaningful equity, and a culture that rewards ownership and initiative. --- *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.
Solana Labs
10 days ago
## Senior Backend Engineer - Solana Mobile **Location:** Remote - USA; Remote - Europe **Employment Type:** Full time **Location Type:** Remote **Department:** Solana Mobile --- ### Who We Are **Solana** is a high-performance blockchain that can deliver a fast and friendly user experience, without sacrificing security. **Solana Labs, Inc.** ("Solana Labs") is a technology company that builds products, tools, and reference implementations that can be used on the Solana blockchain. --- ### About Solana Mobile Solana Mobile is building the mobile platform for digital assets on Solana. We recently launched **Seeker**, a digital asset–first phone featuring **Seed Vault**, a hardware-backed security system for wallets, along with our own wallet and the **dApp Store**, a mobile distribution platform for apps built by the ecosystem of Solana developers, and the **Solana Mobile Stack (SMS)**, which enables phone manufacturers to deliver these products on their own devices. We don't just provide infrastructure. We build the full stack across hardware, software, and platform services to deliver seamless, secure, and performant digital asset experiences on mobile. Our backend systems power the dApp Store, wallet services, event tracking, both on-chain and within apps, on-chain transaction systems such as staking, and the APIs that developers and users rely on every day. --- ### The Role We're a lean, high-agency team. Engineers here own real scope: there's no large org to absorb the slack, and the decisions you make show up directly in the product. That also means we move fast and expect people to operate with a high degree of autonomy. We actively lean into AI-assisted development as a way to keep overhead low and give every engineer more leverage. That's not specific to any one role, it's how we work. We expect engineers to experiment with AI tools, integrate them into their own workflows, and share what works. A lot of what makes us effective is how we work, and there's meaningful room to improve. If you write solid backend systems, take ownership seriously, and want to work in an environment where your contributions have a real impact, this is it. --- ### What You'll Own - Design and own backend architecture for core Solana Mobile services: dApp Store APIs, wallet services backend, device registry, event tracking, and on-chain activity systems (staking and related infrastructure) - Build and maintain REST and WebSocket APIs consumed by Android, Flutter, and Web clients, as well as third-party developers integrating the Solana Mobile Stack - Own your services in production: participate in on-call rotation, author runbooks, contribute to post-mortems, and close the loop on action items - Look for friction in your own work and in the team's processes: automate what makes sense, build small tools that save repeated effort, and share what you build - Contribute to CI/CD reliability and build infrastructure (GitHub Actions, WarpBuild) with a sharp eye on pipeline speed, cost, and reproducibility - Conduct thorough code reviews, contribute to technical discussions, initiate RFC discussions for significant changes, and help the team get better over time - Drive infrastructure decisions on AWS (ECS, RDS, Lambda, SQS, CloudFront) — from architecture through to cost-conscious production operation - Own the observability stack: structured logging (Loki), metrics and alerting (Prometheus, Grafana Unified Alerting), distributed tracing, and incident response runbooks - Contribute to backend architecture for device attestation and the Seed Vault integration layer, including on-chain verification flows (Squads Protocol multisig, SPL token operations) - Collaborate with mobile engineers (Android/Kotlin, Flutter/Dart) to design mobile-first API patterns — offline resilience, background sync, efficient payloads for constrained networks - Work closely with Protocol Engineers, building Solana programs to design off-chain services that compose cleanly with on-chain logic --- ### What We're Looking For - 5+ years of professional backend engineering, with a track record of owning and operating production services - High ownership: you take problems end-to-end and drive them to resolution without waiting for direction - Proactive by default: you identify issues early, propose solutions, and move quickly - You already use AI coding tools (Claude Code, Cursor, Copilot) as part of how you work: not as a novelty, but because they make you faster and you've figured out when to trust them - Strong proficiency in **TypeScript/Node.js** and/or **Rust** — idiomatic, well-tested, production-grade code - Solid command of **PostgreSQL**: schema design, query optimization, indexing, migration discipline - Good working knowledge of **Redis**: caching patterns, pub/sub, TTL strategies - Hands-on **AWS** experience: ECS, RDS, SQS, S3, Lambda — comfortable deploying and operating services in a cloud environment - Sound understanding of distributed systems: idempotency, eventual consistency, fault tolerance, graceful degradation - Security-aware: secrets management (AWS Secrets Manager / SSM), API auth patterns (JWT, OAuth2), OWASP hygiene - Comfortable with **Docker** and containerized deployments #### Bonus Points - Familiarity with the Solana ecosystem: RPC node interaction, on-chain program invocation, SPL tokens, wallet adapter patterns, or indexer design - Experience working closely with external developers or ecosystem partners: debugging integrations, reviewing SDK usage, or shaping APIs based on real developer feedback - You've built small automation scripts, internal tooling, or LLM-integrated workflows that saved real time, for yourself or your team - Experience building backends for mobile-native products (push notifications, storefront APIs, device attestation, background job orchestration) - Contributions to open-source backend libraries, developer tooling, or the Solana ecosystem - Prior experience in a senior or tech lead capacity: driving cross-team alignment, writing technical specs, owning a domain end-to-end --- ### Our Stack TypeScript · Rust · Node.js · PostgreSQL · Redis · AWS (ECS, RDS, Lambda, SQS, S3) · Docker · GitHub Actions · WarpBuild · Grafana · Prometheus · Loki · Solana Web3.js · Squads Protocol · SPL · AWS Secrets Manager · Android/Kotlin · Flutter/Dart --- *When applying, mention the word CANDYSHOP to show you read the job post completely.*