Fullstack Engineer (Web3)

Location: London, United Kingdom

Company

hirify.global provides institutional digital asset infrastructure for securely accessing cryptocurrencies and moving digital assets across blockchain networks.

What you will do

• Design and build scalable backend services for high-volume on-chain transaction flows across EVM and non-EVM networks.
• Own backend components and APIs from architecture through production deployment.
• Integrate DeFi protocols, on-chain data sources, and blockchain nodes across multiple ecosystems.
• Research emerging blockchain technologies, protocols, and standards.
• Optimize production systems for performance, reliability, security, latency, and throughput.
• Collaborate with product, protocol research, and platform engineering teams to deliver features at scale.

Requirements

• 7+ years of experience as a Backend or Full Stack Engineer.
• Bachelor of Science degree or equivalent experience.
• Professional blockchain and Web3 experience is required, including transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data.
• Experience with multiple blockchain ecosystems, including EVM-compatible and non-EVM chains.
• Proficiency in Node.js and TypeScript, with experience operating production microservices and CI/CD environments.
• Strong knowledge of security principles, cryptography, blockchain tooling, and production-scale product delivery.

Nice to have

• Experience with DeFi protocols such as AMMs, lending markets, bridging infrastructure, or on-chain routing.
• Experience with React and frontend development.

Culture & Benefits

• Work on blockchain infrastructure supporting institutional and retail digital asset use cases.
• Solve complex problems involving multi-chain routing, on-chain data indexing, and protocol integrations.
• Collaborate with engineers, protocol researchers, and product specialists in a global company.
• Competitive compensation and meaningful equity.
• A culture that rewards ownership and initiative.