Fireblocks
digital assets
SeniorBackendEngineer–Finapps/Access
Neural analysis suggests this role is
optimal for Senior candidates.
“Senior Backend Engineer – Finapps/Access at Fireblocks. Skills: Backend Engineering, Blockchain, Web3, Node. js, TypeScript, Microservices. 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”
What You'll Achieve.
designing systems that route, protect, and optimize transactions across dozens of chains at scale; direct impact on how billions of dollars flow through decentralized networks every day; deliver high-quality solutions on time; delivery at scale
Industry & Context.
think in systems; care deeply about correctness, reliability, and scale; drive technical decisions with limited oversight; Tackle genuinely hard engineering problems — multi-chain routing, on-chain data indexing, protocol integrations, and more
What They're Looking For.
Must Have
7+ years of experience as a Backend or Full Stack Engineer, Blockchain and Web3 experience, deep understanding of transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data, Proven experience working across multiple blockchain ecosystems — EVM-compatible chains (Ethereum, Polygon, Arbitrum, Base, etc. ) as well as non-EVM chains such as Solana, TON, Tron, or similar, Proficiency in Node. js and TypeScript, Experience designing and operating microservices in production CI/CD environments, understanding of security principles, cryptography, and best practices in a blockchain context, Demonstrated experience taking products from inception to delivery at scale
Nice to Have
Familiarity with DeFi protocols — AMMs, lending markets, bridging infrastructure, or on-chain routing, Experience with Web3 tooling and libraries (ethers. js, viem, web3. js, Solana web3. js, etc. ), Full stack experience (React, frontend development)
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
and standards to keep Fireblocks at the cutting edge
Optimize existing production systems for performance
and security — reducing latency and increasing throughput
Drive features from inception through to delivery at scale
taking full ownership of the product lifecycle
How You'll Work.
Team & Collaboration
Collaborate closely with product, protocol research, and platform engineering teams to deliver high-quality solutions on time; communicate clearly and collaborate effectively across engineering, product, and research
Communication Scope
communicate clearly; collaborate effectively
Process & Methodology
Drive features from inception through to delivery at scale, taking full ownership of the product lifecycle
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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