<h3>About the Role</h3>We are looking for a highly skilled Senior Blockchain Engineer to join our engineering team and help design, build, and scale secure blockchain-based products. The ideal candidate has strong experience in smart contract development, blockchain protocols, decentralized applications, and backend systems.You will work closely with product, engineering, and security teams to develop robust Web3 solutions, contribute to technical architecture, and ensure our blockchain infrastructure is secure, scalable, and reliable.<h3>Key Responsibilities</h3><ul><li>Design, develop, test, and deploy smart contracts and blockchain-based applications.</li><li>Build and maintain decentralized applications, blockchain integrations, and backend services.</li><li>Work with blockchain networks such as Ethereum, Polygon, Solana, BNB Chain, Avalanche, or similar ecosystems.</li><li>Review and optimize smart contracts for security, gas efficiency, and performance.</li><li>Collaborate with frontend, backend, product, and security teams to deliver high-quality Web3 products.</li><li>Participate in architecture decisions and contribute to technical strategy.</li><li>Integrate wallets, token standards, DeFi protocols, NFTs, DAOs, or other blockchain infrastructure as needed.</li><li>Write clean, maintainable, well-documented code.</li><li>Conduct code reviews and mentor junior engineers.</li><li>Stay current with emerging blockchain technologies, security standards, and industry best practices.</li></ul><h3>Required Qualifications</h3><ul><li>5+ years of professional software engineering experience.</li><li>3+ years of hands-on blockchain or Web3 development experience.</li><li>Strong experience with Solidity, Rust, Go, or other blockchain-related programming languages.</li><li>Experience developing and deploying smart contracts on mainnet or testnet environments.</li><li>Strong understanding of blockchain concepts, including consensus mechanisms, wallets, private keys, transactions, gas fees, bridges, and token standards.</li><li>Experience with frameworks and tools such as Hardhat, Foundry, Truffle, Web3.js, Ethers.js, Anchor, or similar.</li><li>Solid backend development experience using Node.js, TypeScript, Go, Python, or similar technologies.</li><li>Strong understanding of security best practices for smart contracts and decentralized systems.</li><li>Experience with Git, CI/CD workflows, APIs, databases, and cloud infrastructure.</li><li>Excellent problem-solving, communication, and teamwork skills.</li></ul><h3>Nice to Have</h3><ul><li>Experience with DeFi, staking, tokenomics, NFT platforms, Layer 2 solutions, or cross-chain protocols.</li><li>Familiarity with smart contract audits and formal verification.</li><li>Open-source contributions in the blockchain or Web3 ecosystem.</li><li>Experience with indexing tools such as The Graph.</li><li>Knowledge of zero-knowledge proofs, account abstraction, MEV, or rollup technologies.</li><li>Previous experience working in a startup or fast-paced product environment.</li></ul><h3>What We Offer</h3><ul><li>Competitive salary and performance-based incentives.</li><li>Flexible working environment.</li><li>Opportunity to work on innovative blockchain and Web3 products.</li><li>Collaborative and growth-focused team culture.</li><li>Professional development and learning opportunities.</li><li>The chance to make a meaningful impact in a rapidly growing industry.</li></ul>

Senior Blockchain Engineer

<h3>About Holitix</h3>Holitix is a forward-thinking Web3 innovation hub dedicated to helping businesses unlock the full potential of blockchain technology. We specialize in delivering secure, scalable, and innovative digital solutions that enable organizations to transform operations, create new opportunities, and thrive in the decentralized economy.Our role is to bridge the gap between emerging technologies and real-world business needs. From strategic consulting and product development to blockchain implementation and digital transformation, Holitix serves as a trusted partner for enterprises, startups, and innovators looking to build the future with confidence.By combining technical expertise, industry insights, and a commitment to excellence, we help our clients turn ambitious ideas into impactful solutions that drive sustainable growth and long-term success.<h3>Position Overview</h3>We are looking for an experienced Fractional CTO / Technical Advisor to provide strategic technology leadership across our Web3 ecosystem. This role will support multiple initiatives, including a Web3 gaming platform, decentralized exchange (DEX), and a blockchain-based real estate platform focused on tokenized assets. The ideal candidate will work closely with founders, product teams, and engineers to guide technical strategy, architecture decisions, security practices, and product scalability.<h3>Key Responsibilities</h3><ul><li>Define and drive the overall technical vision, architecture, and roadmap across multiple Web3 products.</li><li>Advise leadership on technology decisions, product strategy, infrastructure planning, and scalability.</li><li>Review and validate system architecture, smart contract designs, and blockchain integrations.</li><li>Provide guidance on DEX development, liquidity mechanisms, tokenomics, staking, and DeFi protocols.</li><li>Support the design and implementation of Web3 gaming ecosystems, NFT integrations, and on-chain economies.</li><li>Advise on the architecture and technical implementation of tokenized real estate and Real-World Asset (RWA) platforms.</li><li>Conduct technical reviews and identify opportunities to improve performance, security, and reliability.</li><li>Mentor engineering teams and establish development standards, best practices, and technical processes.</li><li>Assist with technical hiring, team structure, and engineering leadership.</li><li>Evaluate emerging blockchain technologies and recommend suitable solutions for business objectives.</li><li>Collaborate with stakeholders, partners, and investors on technical discussions and due diligence.</li><li>Ensure products follow security best practices and are prepared for third-party audits and compliance requirements.</li></ul><h3>Required Qualifications</h3><ul><li>8+ years of software engineering experience with at least 3 years in a technical leadership role.</li><li>Strong expertise in blockchain architecture, smart contracts, and decentralized applications.</li><li>Experience working with Ethereum, Polygon, Arbitrum, Base, BNB Chain, Solana, or similar ecosystems.</li><li>Proven experience building or advising Web3, DeFi, GameFi, NFT, or RWA projects.</li><li>Deep understanding of DEX protocols, liquidity pools, staking mechanisms, and token economics.</li><li>Strong knowledge of cloud infrastructure, DevOps, security, and scalable backend systems.</li><li>Excellent communication skills with the ability to work closely with founders and executive stakeholders.</li><li>Experience leading distributed or remote engineering teams.</li></ul><h3>Preferred Qualifications</h3><ul><li>Previous CTO, VP Engineering, Head of Engineering, or Technical Lead experience.</li><li>Experience launching successful blockchain products or Web3 startups.</li><li>Knowledge of smart contract auditing processes and security frameworks.</li><li>Understanding of regulatory considerations related to digital assets and tokenized real-world assets.</li><li>Active involvement in the blockchain and Web3 ecosystem.</li></ul><h3>What We Offer</h3><ul><li>Flexible engagement structure with remote work.</li><li>Opportunity to shape innovative Web3 products from the ground up.</li><li>Direct collaboration with founders and decision-makers.</li><li>Exposure to cutting-edge technologies across DeFi, GameFi, and tokenized asset platforms.</li><li>Long-term advisory opportunities with a fast-growing Web3 company.</li></ul><h3>How to Apply</h3>Please share your updated resume, LinkedIn profile, portfolio of relevant Web3 projects, and a brief summary of your experience leading or advising blockchain-based products.

Tammy Schultz

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Senior Blockchain Engineer

Fractional CTO / Technical Advisor - Web3

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Senior Blockchain Engineer

Fractional CTO / Technical Advisor - Web3

Freelancers

Enterprises

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