Fireblocks
Digital Assets
SeniorBackendEngineer–Finapps/Access
Neural analysis suggests this role is
optimal for Senior candidates.
“Senior Backend Engineer – Finapps/Access at Fireblocks. Skills: Blockchain, Web3, Backend services, Microservices. Design backend services. Build backend services”
Industry & Context.
Correctness; Reliability; Scale
What They're Looking For.
Must Have
7+ years Backend or Full Stack Engineer, Blockchain and Web3 experience, Deep understanding of transaction lifecycles, Understanding of consensus mechanisms, Understanding of smart contract interactions, Understanding of on-chain data, Experience across multiple blockchain ecosystems, Proficiency in Node.js, Proficiency in TypeScript, Experience designing microservices, Experience operating microservices, Experience in production CI/CD environments, Understanding of security principles, Understanding of cryptography, Understanding of blockchain security best practices, Demonstrated experience taking products from inception to delivery at scale
Nice to Have
Familiarity with DeFi protocols, Full stack experience, React experience, Frontend development experience
What You'll Do.
Design backend services
Build backend services
Own end-to-end development
Research blockchain technologies
Evaluate blockchain technologies
Optimize production systems
Collaborate with product teams
Collaborate with protocol research teams
Collaborate with platform engineering teams
Drive features from inception
Deliver features at scale
Take ownership of product lifecycle
How You'll Work.
Team & Collaboration
Product teams; Protocol research teams; Platform engineering teams
Full Job Description
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 it 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
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