Smart Contracts Jobs

Lead Blockchain Architect

Luxium AG

Today

## Chief Blockchain Architect (Layer 1) **Bitcoin solved trust in transactions. Luxium introduces trust in price — the world’s first non-human price creation model.** **Luxium AG** is a Swiss-based company developing a next-generation Layer 1 blockchain ecosystem where protocol-level architecture, transparent monetary logic, and long-term infrastructure come together to redefine how value is created and preserved. The system introduces structured pricing tiers based on Fibonacci logic, designed to provide clarity and predictability independent of human decision-making. Combined with a first-of-its-kind mobile consensus protocol enabling scalable distributed validation through everyday devices, Luxium aims to build infrastructure designed to remain relevant for decades, not trends that fade in years. We are currently seeking an experienced **Blockchain Architect** to define the technical foundation of the entire ecosystem. ### Role Overview This is a senior architecture role focused on designing a new Layer 1 system from first principles. The initial phase is a **paid architecture engagement** where you will work directly with the founders and core team to define the system’s technical direction, evaluate design choices, and structure the blockchain roadmap. The objective is not incremental improvement of existing models, but careful design of a coherent protocol architecture balancing security, scalability, decentralization, and long-term sustainability. For the right candidate, this engagement can evolve into a **long-term leadership role** with equity and token participation. ### Initial Scope During the first phase, you will help define: - Overall Layer 1 architecture - Consensus and validation design - Node structure and network topology - Transaction flow and fee logic - System-level economic logic integration - Mobile-based consensus approach - Scalability, security and decentralization trade-offs - Architecture roadmap and implementation stages - Technical requirements for future team structure ### Responsibilities - Design the core architecture of a new blockchain protocol - Evaluate consensus models and validation structures - Define system-level logic and network design principles - Translate conceptual goals into implementable architecture - Prepare clear architecture documentation - Identify technical risks and key trade-offs early - Collaborate closely with founders and developers - Help define technical hiring roadmap where needed ### Requirements - Strong experience in blockchain architecture or distributed systems design - Deep understanding of Layer 1 protocol design principles - Strong knowledge of consensus mechanisms and network security - Strong background in system architecture and distributed computing - Understanding of cryptographic fundamentals used in blockchain systems - Ability to structure complex systems from first principles - Ability to produce clear technical documentation - Strong analytical thinking and independent judgment ### Strong Plus - Previous work on Layer 1 protocols - Protocol engineering experience - Experience with Rust, Go, C++, or similar system-level languages - Experience designing secure distributed systems - Open-source blockchain contributions - Experience working with early-stage technical architecture - Ability to evaluate unconventional approaches critically ### Engagement Structure The collaboration begins with an initial architecture phase focused on defining the system’s foundations before full-scale implementation. We are open to: - Short-term architecture engagement - Part-time senior involvement - Project-based collaboration - Transition into long-term leadership role For the right candidate, this role can evolve into a **core technical leadership position** within Luxium AG. ### Compensation Compensation depends on experience and level of involvement. **Initial phase:** - Contract-based compensation aligned with seniority and scope **Long-term structure may include:** - Competitive salary - Performance-based upside - Equity participation - Luxium token allocation ### Why Join - Opportunity to design a Layer 1 architecture from the ground up - Influence fundamental protocol design decisions - Work directly with founders on core system logic - Long-term technical leadership potential - Swiss-based structure with global scope - Focus on protocol-level innovation rather than short-term trends **In addition, a performance-based milestone bonus of up to USD 1,000,000 may be granted upon successful mainnet launch within agreed timelines and technical parameters. Specific structure and conditions will be defined transparently as part of the engagement agreement.** ### To Apply Please send: - CV or LinkedIn profile to info@luxium.global - Short summary of relevant architecture experience - GitHub, publications or technical references (if available) - Brief note describing your experience with protocol design or distributed systems *When applying, mention the word CANDYSHOP to show you read the job post completely.*

Senior Software Engineer, Data Products

Chainlink Labs

1 day ago

## About Chainlink Chainlink is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). The Chainlink stack provides the essential data, interoperability, compliance, and privacy standards needed to power advanced blockchain use cases for institutional tokenized assets, lending, payments, stablecoins, and more. Since inventing decentralized oracle networks, Chainlink has enabled tens of trillions in transaction value and now secures the vast majority of DeFi. Many of the world’s largest financial services institutions have also adopted Chainlink’s standards and infrastructure, including Swift, Euroclear, Mastercard, Fidelity International, UBS, S&P Dow Jones Indices, FTSE Russell, WisdomTree, ANZ, and top protocols such as Aave, Lido, GMX and many others. Chainlink leverages a novel fee model where offchain and onchain revenue from enterprise adoption is converted to LINK tokens and stored in a strategic Chainlink Reserve. Learn more at chain.link. ## About the Role As a software engineer on the Data Products team, you’ll collaborate with an experienced technical team of other engineers, distributed systems computing experts, and security experts, who are all committed to building a world-changing decentralized infrastructure. You’ll develop and build highly scalable, secure, and reliable software that will change the way smart contracts function at a fundamental level, with a focus on Data Feeds. You’ll have the opportunity to learn and master the latest research concerning distributed systems, cryptography, blockchains, game theory, consensus algorithms, and decentralized applications. You will be given a high level of autonomy/ownership over your projects, the opportunity to expand your scope of knowledge, and the chance to help build the decentralized infrastructure of the future. ## Your Impact - Designing and implementing new features within the Data Product space, such as trust-minimized off-chain computation & the aggregation of external data in various blockchain environments, and many more problems - Design and own the end to end delivery of new and existing data products that power the largest market share of Defi by total value secured (TVS) - Learn more about the underlying technology in the blockchain ecosystem (Solana, Avalanche, Polygon, Ethereum, and more) - Build our core products with Smart Contracts using Solidity, Move, and Rust - Partner with the research team to build cutting-edge products - Think creatively about attack vectors, possible failures, and disaster scenarios, modeling them in reproducible test environments, and developing fixes - Managing the architectural vision for new subsystems in the core Chainlink node - Implementing resilient distributed systems to achieve extremely high reliability in a variety of blockchain environments ## Requirements - At least 7-10+ years of professional software engineering experience working in a collaborative product-driven environment - Experience in blockchain and other Web 3.0 technologies - Experience developing smart contracts that secured meaningful value on-chain - Knowledge of computer science fundamentals and systems design concepts - Experience owning multi month long projects, including communication of progress, dependencies, and risk mitigation directly with stakeholders and partners - Experience building distributed systems and low-latency systems - B.S. or higher in computer science, software engineering, mathematics or related technical field ## Desired - Experience in Golang or any other strongly-typed programming language - Experience working with a globally distributed team - Experience working in or with market data ## Our Stack Golang, Solidity, TypeScript, Rust, Postgres, Terraform, AWS *All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to overlap some working hours with Eastern Standard Time (EST).* *We carefully review all applications and aim to provide a response to every candidate within two weeks after the job posting closes. **The closing date is listed on the job advert, so we encourage you to take the time to thoughtfully prepare your application.** We want to fully consider your experience and skills, and you will hear from us regarding the status of your application shortly after the closing date.* ## Commitment to Equal Opportunity Chainlink Labs is an equal opportunity employer. All qualified applicants will receive equal consideration for employment in compliance with applicable laws, regulations, or ordinances. If you need assistance or accommodation due to a disability or special need when applying for a role or in our recruitment process, please contact us via this form. ## Global Data Privacy Notice for Job Candidates and Applicants Information collected and processed as part of your Chainlink Labs Careers profile, and any job applications you choose to submit, is subject to our Recruiting Privacy Policy. By submitting your application, you are agreeing to our use and processing of your data as required. When applying, mention the word **CANDYSHOP** to show you read the job post completely.

Senior Engineer at Aetherum

Aetherum.ai

2 days ago

## Company Description **Aetherum** (aetherum.ai) is building B2B crypto-collateralized lending infrastructure purpose-built for NCUA-regulated U.S. credit unions. We give credit unions the tools to offer crypto-backed loans to their members — with AI-powered underwriting, on-chain compliance, and institutional-grade custody architecture that keeps assets in the credit union's direct control. 5 patents pending. Live platform. Active partnerships. We're solving a problem no one else is built to solve. ## Role Description This is a foundational **Senior Engineer** role based in the San Francisco Bay Area (hybrid). You won't be joining a large team — you'll be the engineer who helps take Aetherum to its production-ready MVP deployment. That means owning real architecture decisions, working directly with the founder, and building on a live platform with paying infrastructure partners already in place. ## What You'll Own - **NestJS/TypeScript backend and React frontend** (you're extending, not starting) - **On-chain compliance architecture** (ERC-3643, Solidity, Sepolia → mainnet path) - **Crypto collateral architecture** across multiple asset types including XRP and stablecoins — with custody rails that keep assets in the credit union's direct control - **AI-powered underwriting pipeline** (Python microservices) - **Infrastructure decisions** you'll defend to regulators and investors ## The IP You'll Be Building On 5 patents pending across the core of what makes Aetherum defensible: 1. **DACS™** — proprietary risk assessment model scoring crypto-collateralized loan eligibility across 10 pillars, purpose-built for NCUA-regulated environments 2. **FHE-DACS** — Fully Homomorphic Encryption layer enabling privacy-preserving risk scoring without exposing member financial data 3. **DACS-Driven Dynamic LTV** — on-chain enforcement of per-member loan-to-value ceilings derived from DACS scores, written to the blockchain at origination 4. **ERC-3643 CUMember On-Chain Identity** — compliance module tying credit union membership, jurisdiction, and KYC status to an on-chain identity standard built for institutional lending 5. **TPSOE/DACS Methodology** — the underlying scoring and optimization engine This isn't a crypto app with a compliance checkbox. The compliance architecture is the product — and you'll be the engineer who extends and defends it. ## Qualifications - 7+ years full-stack engineering, with at least 2 in Web3/blockchain - Proficiency in TypeScript, NestJS, React, Python, and Solidity - Experience shipping in regulated fintech, crypto infrastructure, or B2B SaaS - Familiarity with MongoDB, Redis, and API-first architecture - Strong understanding of on-chain identity, compliance modules, and smart contract security - The kind of engineer who asks "why" before writing a line of code - Remote / Based in the San Francisco Bay Area ## What This Is This is an early-stage, equity-heavy role. If you want a big salary and zero ambiguity, this isn't it. If you want to own the technical direction of a company solving a real problem in a space no one has cracked yet — let's talk. www.aetherum.ai 📩 **Apply:** AetherumDev@aetherum.ai *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*

Senior Relationship Manager

The Tie

4 days ago

## About The Tie The Tie is a leading provider of intelligence, infrastructure, advisory, and communication solutions that power institutional participation in digital assets. We serve hundreds of the world's largest institutions through The Tie Terminal and our data APIs, provide institutional staking solutions, offer investor relations services to leading token issuers, and license data feeds to crypto exchanges and platforms. One of our fastest-growing businesses is Corporate Access, the premier platform for protocols to gain exposure, build credibility, and secure relationships with the world's most influential institutions. We connect protocols with institutional investors through four annual flagship events and direct connectivity opportunities. ## The Position As a **Senior Relationship Manager**, you are responsible for developing strong relationships and supporting leading digital asset protocols participating in The Tie's Corporate Access platform. You will serve as one of the primary points of contact, communicating key information and helping them effectively position their story, engage institutional investors, and maximize outcomes. In the role, you will work cross-functionally with leadership and the events team to deliver a seamless client experience, while proactively identifying opportunities for deeper engagement. Success in this role requires a strong understanding of the digital asset ecosystem—including both protocols and institutional participants—along with deep relationship management experience and the ability to operate both strategically and tactically. ## Responsibilities * Serve as a primary point of contact for The Tie's corporate access clients, delivering exceptional relationship management and support. * Provide a high-touch, white-glove client experience, ensuring client needs are anticipated and exceeded. * Manage and execute The Tie Innovator Webinar Series, including planning, coordination, and client engagement. * Connect protocols with relevant institutional partners through thoughtful, strategic introductions aligned with their core objectives. * Maintain strong attention to detail across all client interactions, deliverables, and internal coordination. * Track client activity, feedback, and engagement to inform relationship strategy and growth opportunities. * Cultivate strong, active relationships with institutional clients and partners to effectively identify and facilitate meaningful introductions between them and our protocol clients. ## Requirements * Full-time client-facing work experience, working with crypto protocols and/or institutional investors. * Proven experience in relationship management or client-facing roles, preferably within crypto, fintech, or financial services. * Strong knowledge of capital markets, digital assets, blockchain protocols, and the institutional crypto landscape. * A deep understanding of crypto, including DeFi, RWAs, smart-contract protocols, and other industry sectors is highly preferred. * Demonstrated ability to build trust and credibility with clients. * Excellent communication skills, both written and verbal. * Highly organized with strong attention to detail and the ability to manage multiple priorities. * Self-starter comfortable operating in a fast-paced, evolving environment. * Client-first mindset with a commitment to delivering high-quality service and experiences. ## Benefits * Competitive compensation (salary, bonus, and options). * Health, dental, vision, and disability insurance. * Flexible paid time off. * A fast-paced and exciting work environment. * Strong teamwork-driven culture. **Salary Range:** $120,000 - $140,000, commensurate with experience. **Location:** New York City preferred / remote considered. The TIE inc is an equal opportunity employer. *When applying, mention the word CANDYSHOP to show you read the job post completely.*

Blockchain Developer

MM Management Consultant

4 days ago

## Blockchain Architect – Financial Services (SF Onsite) We are looking for a senior **Blockchain Architect** to lead high-priority DTI initiatives (Tokenized Deposits, Digital Assets, and Distributed Settlements) for a major financial institution in San Francisco. ### Key Logistics - **Model:** C2C (Corp-to-Corp) - **Location:** San Francisco, CA (**100% Onsite – Locals Only**) - **Requirement:** 10+ years of Architectural experience. - **Visa:** Minimum 12-month validity required. - **Interview:** Mandatory **in-person** final round in SF. ### The Work - Design hybrid architectures integrating DLT with core banking and payment systems. - Define on-chain vs. off-chain logic for regulated environments. - Guide usage of permissioned ledgers, privacy models, and smart contract governance. - Ensure bank-grade security, resiliency, and regulatory alignment. When applying, mention the word **CANDYSHOP** to show you read the job post completely.

Head of Compliance

Blockdaemon

5 days ago

## Head of Compliance We are looking for a seasoned and forward-thinking **Head of Compliance** to lead our compliance function at a pivotal moment for the web3 industry. Reporting to the Chief Legal Officer, you will be responsible for the company’s compliance strategy and programs. This is a senior individual contributor role for someone who thrives at the intersection of fast-moving regulation, emerging technology, and business growth. ### Your Impact * **Compliance Strategy & Programme Ownership:** Lead the company's compliance vision and multi-year roadmap. Build a scalable, risk-based programme that evolves with the business and the regulatory environment, and ensure compliance is embedded as a strategic enabler — not just a control function. * **Regulatory Strategy & Government Affairs:** Shape the company's regulatory positioning in the US and, where applicable, globally. Engage with regulators as needed. Monitor and assess the impact of key developments — such as the CLARITY Act, GENIUS Act, SEC/CFTC harmonisation efforts, and evolving DeFi guidance — and translate these into concrete business recommendations. Represent the company in industry working groups, trade associations, and policy discussions. * **Web3 & Digital Asset Compliance:** Lead compliance strategy across the company's core products and protocols, including token issuance and classification, stablecoin compliance, DeFi protocol risk, smart contract governance, on-chain transaction monitoring, and blockchain analytics. Advise on the regulatory treatment of digital assets under evolving SEC and CFTC frameworks, including securities vs. commodity determinations and tokenized asset requirements. * **Risk Management & Controls:** Own the enterprise compliance risk framework. Oversee AML/BSA, KYC/KYB, OFAC sanctions screening, transaction monitoring, and blockchain analytics programmes. Partner with teams within the company to embed controls into products and infrastructure — not just processes. * **Policy, Training & Culture:** Own the compliance policy lifecycle and oversee a targeted, role-based training programme. Champion an organisation-wide culture of integrity, using data and storytelling — not just mandates — to drive genuine behavioural change. ### Role Requirements * 10+ years of compliance experience, with significant time in digital assets, fintech, or financial services * Deep knowledge of the US digital asset regulatory landscape — including SEC, CFTC, FinCEN, OFAC, and state-level frameworks — and a strong view on where it's heading * Experience leading regulatory examinations, licensing processes, or enforcement matters directly * Proven track record of building compliance programmes in high-growth or ambiguous environments * Familiarity with blockchain technology, on-chain transaction monitoring tools (e.g. Chainalysis, TRM Labs), and DeFi risk vectors * Strong executive presence with the ability to advise executives, engage regulators, and influence across the business ### Compensation & Benefits The base salary range for this position is **$160,000 - $240,000 USD annually**. The final offer will be determined based on factors including your experience, skills, qualifications, geographic location, and internal equity considerations. In addition to base salary, this role includes equity compensation and a comprehensive benefits package. We offer competitive health cover, 401k, flexible paid time off, and other perks designed to support your wellbeing and professional growth. This position is remote and open to candidates located anywhere in the United States, with a preference for those on the East Coast. *Blockdaemon is committed to pay transparency and equal pay practices. We determine compensation based on role requirements, candidate qualifications, and market data—never on protected characteristics.* ### About Us **We Power the Blockchain economy.** **Blockdaemon** powers the blockchain economy with its suite of industry-leading infrastructure solutions. We are a globally established, ISO-27001 certified partner with extensive protocol coverage, offering technical depth, industry-leading SLAs, 70+ global points of presence through 10+ cloud and bare metal providers, and 24/7 support for an unmatched institutional-grade experience. We provide integrated business solutions to exchanges, custodians, crypto platforms, financial institutions, and developers using our end-to-end suite of blockchain tools, including dedicated nodes, APIs, staking, liquid staking, MPC tech, and more. Blockdaemon provides its customers with the confidence to quickly and easily scale without compromising security or compliance. We are a globally distributed team. Blockdaemon is an Equal Opportunity Employer. *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*

Binance Accelerator Program - Software Engineering (Web3 & Big Data)

Binance

5 days ago

# Binance Accelerator Program - Software Engineering (Web3 & Big Data) **Location:** Asia / Hong Kong / Taiwan, Taipei **Department:** Engineering – Data Science/AI **Program:** Binance Accelerator Program **Workplace Type:** Hybrid **About Binance** Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world. **About Binance Accelerator Program** Binance Accelerator Program is a concise fixed-term program designed for Early Career Talent to have an immersive experience in the rapidly expanding Web3 space. You will be given the opportunity to experience life at Binance and understand what goes on behind the scenes of the worlds’ leading blockchain ecosystem. Alongside your job, there will also be a focus on networking and development, which will expand your professional network and build transferable skills to propel you forward in your career. Learn about BAP Program HERE. **Who may apply** Current university students and recent graduates. ## About the Role We are building next-generation Web3 infrastructure and are looking for a motivated engineering early career talent to grow alongside us. You will work directly with our core team on real-world challenges — from optimizing real-time big data pipelines to integrating AI-assisted tooling into our development workflow. This is a hands-on role with meaningful ownership from day one. ## What You Will Do - Learn and work with real-time big data components such as Kafka, Flink, or Spark Streaming; identify bottlenecks and contribute to performance optimizations. - Participate in Web3 project development — including on-chain data ingestion, smart contract interaction, and blockchain analytics features. - Apply AI tools and LLM-assisted workflows (e.g., code generation, automated testing, documentation) to accelerate development velocity. - Collaborate in English with cross-functional teammates on engineering discussions, code reviews, and technical documentation. - Proactively explore unfamiliar technologies, ask good questions, and share learnings with the team. ## What We Are Looking For - Currently pursuing or recently completed a degree in Computer Science, Software Engineering, or a related technical field. - Strong genuine interest in software development — you build things in your spare time, follow technical communities, or experiment with side projects. - Fluent spoken and written English — comfortable participating in technical meetings, writing documentation, and communicating blockers clearly. - Self-driven and proactive — you do not wait to be told what to learn; you identify gaps, seek resources, and take initiative without prompting. - Available to commit a minimum of 4 days per week throughout the internship period. ## Nice to Have - Familiarity with blockchain concepts — transactions, wallets, smart contracts, or DeFi protocols. - Exposure to distributed systems, stream processing, or database design. - Prior experience using AI coding assistants (Copilot, Cursor, Claude Code, etc.) in a real project context. ## What You Will Gain Hands-on experience with production Web3 systems, mentorship from a senior engineering team, direct exposure to real-time data architecture, and a front-row seat to how AI is reshaping how software gets built. ## Why Binance - Shape the future with the world’s leading blockchain ecosystem - Collaborate with world-class talent in a user-centric global organization with a flat structure - Tackle unique, fast-paced projects with autonomy in an innovative environment - Thrive in a results-driven workplace with opportunities for career growth and continuous learning - Competitive salary and company benefits - Work-from-home arrangement (the arrangement may vary depending on the work nature of the business team) Binance is committed to being an equal opportunity employer. We believe that having a diverse workforce is fundamental to our success. *By submitting a job application, you confirm that you have read and agree to our Candidate Privacy Notice.* *We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are made by our hiring team.*

CTO possible co-founder role, hands on Rust, startup experience a must have

Travoom

5 days ago

## Company Description **About OleOle** OleOle is building the world’s first decentralized football super app — a unified platform that brings together social media, messaging, real-time scores, live video, gambling, e-commerce, and crypto rewards. We’re building something truly unprecedented — a next-generation **social network and messaging platform** designed exclusively for the world’s 3+ billion football fans. Think Twitter, WhatsApp, and TikTok fused into one global superapp — built natively using **Rust**, **Blockchain**, and **AI/ML**. Our vision is bold. We’re not just creating another app — we’re creating the **platform**. A decentralized, multilingual football community powered by real-time translation for Twitter->200 languages. But this isn't just social. We're monetizing through **crypto-native gambling**, building our own **NFT marketplace** focused on matchday imagery, and developing a **low-fee crypto exchange** we believe we can acquire and relaunch for almost nothing. With 4,000+ exchanges out there and fewer than 15 expected to survive, we see a clear consolidation opportunity. At the center of this entire ecosystem is our upcoming **crypto token, OleX** — a high-utility token powering transactions, rewards, gambling, and viral platform growth. We're looking for a **hands-on technical leader** to help architect this future, someone who knows Rust cold, understands blockchain inside and out, and has experience launching or scaling token-based platforms. Prior **ICO** experience is a big plus. This is not a CTO title in name only. You’ll be **leading from the front**, building the core architecture alongside a lean but growing team, helping us bring our decentralized football superapp to life. If you're looking to shape the future of social, crypto, and sport — this is it. ## Job Description **If you don’t bother reading the job description please do not apply!** Are you a CTO, **with startup experience?** **The Role** We’re seeking a **hands-on CTO**, and possibly a **co-founder**, who can own the core technology strategy of OleOle and lead its execution from day one. You will define and build the platform's architecture, oversee engineering direction, and help shape the company’s long-term roadmap. You won’t be managing a large team yet — you’ll be rolling up your sleeves and building alongside the founding team, with equity compensation during the pre-funding phase and a full-time paid position after funding. **Key Responsibilities:** - Design and lead development of the native Rust backend, including APIs, microservices, and system architecture. - Integrate and manage real-time messaging infrastructure using WebSockets and event-driven services. - Oversee the Solana-based OleX token, including smart contract development, wallet logic, and payments architecture. - Build the backend framework for AI-powered features, including translation, recommendation engines, and user content analysis. - Ensure security, scalability, and performance across all systems, especially in crypto and gambling environments. - Partner with the CEO and broader team to align technical goals with the company’s global vision. ## Qualifications **Chief Technology Officer (CTO) – Hands-On, Startup Leader Needed** **Company:** OleOle **Location:** Remote (Global) **Compensation:** Deferred until funding closes **About Us:** OleOle is building the **world’s first social networking and messaging platform for football fans**, integrating features similar to **WeChat, Twitter, WhatsApp, and TikTok**. Our tech stack is **native, built in Rust**, and we are in the **early development phase** after completing the prototype and wireframes. We are seeking a **hands-on, technical, and strategic CTO** who has **built and scaled startups**. You will **lead, mentor, and coach** a **young, global, remote engineering team** operating on **deferred compensation** until we close funding. **Who You Are:** ✅ **A proven startup leader** – You have **7-10+ years as a CTO** and have **led engineering teams at early-stage startups**. ✅ **A technical expert** – Strong background in **Rust** and is an active coder. ✅ **A team coach & mentor** – You can **motivate and develop junior engineers**. ✅ **Experienced in remote teams** – You have led **distributed teams across multiple time zones**. ✅ **Willing to work for deferred compensation** – Until funding closes, the team is working on a **sweat equity model**. ✅ **Ideally has access to capital** – While not required, a CTO with investor connections would be a **huge plus**. **What You’ll Do:** - Lead & build our Rust-native platform from the ground up. - Mentor & develop a young engineering team working for deferred compensation. - Ensure scalability, security, and performance of our architecture. - Work hands-on with the codebase, setting up best practices. - Coordinate development timelines for Phase 1 (7–8 months) and Phase 2 (9–10 months). - Align with our vision to build the world's largest sports social platform. **Why Join Us?** **Game-Changing Vision** – OleOle is building the **world’s first super app for sports**. **Equity & Upside** – Deferred now, but **big rewards as funding closes**. ⚡ **Startup Culture** – Be a founding leader in a fast-moving, **high-impact environment**. **Global Reach** – Work with a team of **top engineers worldwide**. **How to Apply:** If you're **a hands-on, startup-seasoned CTO** who thrives in a **high-risk, high-reward** environment, we want to hear from you. ## Additional Information Of course it’s hard and others won’t want to do the hard stuff. - Creative problem solver who can courageously propose and support new ideas to our organization. Not interested in best practices, lets build something better! - Ability to adapt. An ideal candidate will welcome the opportunity to solve a broad range of problems using a wide array of technologies. - Comfortable with ambiguity, shifting priorities and general growing pains of an early-stage technology company. - An exceptional entrepreneurial judgment that fosters independence over micro-management. OleOleSport is located in beautiful Austin Texas, however, work from home while we fund raise a possibility, held and rapidly growing! When applying, mention the word **CANDYSHOP** to show you read the job post completely.

Smart Contract Developer

Golfiuns

5 days ago

## Smart Contract Developer We are looking for a **Smart Contract Developer** to design, develop, and maintain secure and efficient smart contracts for Web3 applications. You will work on DeFi protocols, token systems, NFT platforms, and blockchain infrastructure across ecosystems such as Ethereum and other EVM-compatible networks. ### Key Responsibilities * Design, develop, and deploy smart contracts (DeFi, NFTs, tokens, DAO systems) * Architect on-chain solutions and protocol logic * Optimize smart contracts for gas efficiency and performance * Conduct internal security reviews and vulnerability checks * Integrate smart contracts with backend and frontend systems * Deploy and maintain contracts on testnet and mainnet environments * Collaborate with product, backend, and security teams * Participate in protocol design and technical decision-making ### Requirements * 1–3+ years of experience in smart contract development * Strong proficiency in Solidity * Deep understanding of the EVM and blockchain fundamentals * Experience with DeFi protocols (AMM, lending, staking, etc.) * Knowledge of smart contract security patterns (reentrancy, overflow, access control, etc.) * Experience with testing frameworks (Hardhat, Foundry, Truffle) * Ability to write clean, secure, and optimized code * Understanding of tokenomics and Web3 system design **Contact Us:** Email - contact@golfiuns.biz / Telegram - @golfiuns *When applying, mention the word **CANDYSHOP** to show you read the job post completely.*

Founding Protocol Engineer

Joyride Labs

7 days ago

## About Joyride Joyride is building the first dedicated 0DTE options exchange for crypto traders. Derivatives are the single largest opportunity to bring traditional finance on-chain, with over $3.5 trillion in notional volume traded in the U.S. every day. Our architecture is hybrid: a central limit order book (CLOB) for low-latency execution, paired with a blockchain for transparent, non-custodial settlement. ### The Team You'll join a founding team that includes the founders and early contributors of Origin Protocol, where we've been building on Ethereum since 2017 and have scaled products to nine-figure TVL. Two of Joyride's cofounders are early advisors to Solana and have built multiple venture-backed companies acquired by Google, Yahoo, and Walmart. ### The Challenge Centralized exchanges are fast but require trust. On-chain exchanges are trustless but slow. We refuse to accept this tradeoff. Joyride centralizes execution for speed and decentralizes verification for trust. Making that seam airtight is the hard part. * **Self-Custody Without Compromise**: Users keep the keys to their own funds and can withdraw without permission from the exchange operator, even if our servers go down. This can't come at the cost of execution speed or capital efficiency. * **Verifiable Execution**: Every off-chain trade must be provably valid on-chain. The exchange operator cannot front-run, reorder, or fabricate trades. Cryptographic proofs link the off-chain matching engine to on-chain settlement without trusting the operator. * **Censorship Resistance**: If the exchange goes dark, users must be able to reconstruct their account state from public data and withdraw their funds. No capital can ever be trapped. * **Security**: DeFi protocols have lost billions of dollars to smart contract exploits, oracle manipulation, and bridge failures. Our on-chain systems must be designed defensively from day one. As our **Founding Protocol Engineer**, you will own the trust and verification layer of Joyride's hybrid architecture. You'll work alongside our Founding Principal Engineer, who owns the matching engine and risk engine. Together, you will build an options exchange that combines the speed of a CEX with the safety guarantees of a DEX. *If you've spent time thinking about how to make off-chain execution verifiable on-chain and how to protect users from a malicious operator, keep reading.* ### Problems You'll Work On * How do you prove to a Solana program that 50,000 off-chain trades were executed fairly, without exceeding compute unit limits? * What Merkle tree structure lets users prove their balance against an on-chain state root while keeping proof sizes small enough for a single transaction? * How do you build a forced withdrawal mechanism that works even when the exchange operator is adversarial or offline? * How do you batch-publish trade history to a DA layer without leaking information that front-runners can exploit? ### Your Domain * **Settlement & Custody**: Users keep custody of their own funds while trading on Joyride. The exchange can lock collateral for risk management but can never take it. When trades settle, funds move based on cryptographic proof, not operator permission. * **Verifiable Execution**: Our matching engine runs off-chain for speed. That means traders are trusting us not to cheat. Your job is to eliminate that trust requirement. Prove to the blockchain that every trade was executed fairly and that the operator can't front-run or manipulate the order book. * **Censorship-Resistant Recovery**: If Joyride disappears tomorrow, every user must be able to independently prove what they own and withdraw it. Trade history must be publicly available and verifiable without our cooperation. * **Unilateral Exit**: Users must be able to leave the system on their own terms, even if the exchange operator is malicious or offline. This is the ultimate safety guarantee and the hardest problem to get right. * **On-Chain Security**: The on-chain systems hold real money. You're the first line of defense, threat-modeling the boundary between off-chain and on-chain and designing systems that are resilient by construction, not by audit. ### Who You Are * **Protocol Engineer, Not App Developer**: You've worked at the infrastructure layer of blockchains: client implementations, consensus protocols, p2p networking, or cryptographic systems. You understand how chains work under the hood, not just how to deploy contracts on them. * **Applied Cryptographer**: You think in Merkle trees, digital signatures, and commitment schemes. You can evaluate whether a ZK proof system, a TEE-based attestation, or a simpler signature scheme is the right tool for a given trust boundary. You follow the research but you ship production code. * **Hybrid Architecture Thinker**: You understand how other exchanges connect off-chain execution with on-chain settlement. You have opinions about their tradeoffs and can articulate what you'd do differently. * **Security-Minded**: You think like an attacker. When you see a bridge between an off-chain server and an on-chain program, your first instinct is to enumerate the ways it can be broken. * **Builder**: You write code every day. You're not looking to manage a team. You want to architect and build critical infrastructure yourself. ### Requirements * 5+ years of systems engineering in Rust, C++, or Go * Deep experience with Solana program development or equivalent blockchain runtime * Strong applied cryptography: Merkle trees, digital signatures, hash-based commitments, proof systems * Understanding of DeFi security: common exploit vectors, smart contract auditing patterns * Experience with hybrid or L2 architectures: off-chain execution with on-chain verification/settlement ### Bonus * Built or worked on a hybrid exchange where matching happens off-chain and settlement happens on-chain * Worked on state verification, fraud proofs, validity proofs, or forced exit mechanisms for an L2 or rollup, including DA integrations * Contributed to a blockchain client or protocol implementation ### What We Offer * Competitive salary and meaningful equity * Remote-first * Full autonomy over your domain * Open-source friendly When applying, mention the word **CANDYSHOP** to show you read the job post completely.