Backend Developer

Fireblocks is a leading digital asset platform and network provider that enables businesses to securely access digital assets and cryptocurrencies. The company serves major financial institutions, banks, globally-recognized brands, and Web3 organizations worldwide.

• 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.

• Bring 7+ years of experience as a Backend or Full Stack Engineer;
• Hold a Bachelor of Science (B.Sc.) or equivalent degree/experience;
• Possess blockchain and Web3 experience — including deep understanding of transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data;
• Demonstrate proven experience working across multiple blockchain ecosystems — EVM-compatible chains as well as non-EVM chains;
• Show proficiency in Node.js and TypeScript;
• Have experience designing and operating microservices in production CI/CD environments;
• Possess strong understanding of security principles, cryptography, and best practices in a blockchain context;
• Show familiarity with DeFi protocols — AMMs, lending markets, bridging infrastructure, or on-chain routing;
• Demonstrate experience with Web3 tooling and libraries;
• Have demonstrated experience taking products from inception to delivery at scale;
• Nice to have: Full stack experience (React, frontend development).

• Competitive compensation, meaningful equity, and a culture that rewards ownership and initiative;
• Target bonus, competitive equity grant, and generous benefits as part of total compensation;
• Relocation support is available.