Senior Backend Engineer

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.  Fireblocks is hiring a Senior Backend Engineer to join the Liquidity Team in Tel Aviv-Yafo, Israel. Connecting exchanges, OTC desks, custodians, and wallets, the Fireblocks Network settles trillions in crypto trading volume, and delivers a seamless trading experience by reducing friction, unlocking capital efficiency and mitigating counterparty risk. The Liquidity Team is dedicated to developing Fireblocks' trading solutions. Delivering a reliable, seamless, fast, and secure trading experience for users in both crypto and fiat assets. What You'll Do • Be a leading backend developer of one of the newest fintech products in Fireblocks. • Mentor and guide other developers in complex designs,Work closely with other teams, lead meaningful cross functional features. • Connect exchanges, leading 3rd party trading agencies and other providers, to create a multi-functional trading platform. • Develop and optimize Fireblocks' trading API to ensure a seamless and scalable experience for our users. • Research and implement cloud-native architectures to support Fireblocks' ongoing growth and scalability. What You'll Bring • At least 5 years of experience in backend development, with a focus on scalable infrastructure with proficiency in Node.js and TypeScript . • Strong understanding of system design principles, distributed systems, and scalability. • Proven track record of designing and deploying microservices-based architectures in production environments. • Experience with monitoring and logging frameworks (e.g., Datadog, Prometheus, Grafana, ELK stack). DeFi & Crypto Domain Knowledge (Must-Have) • Solid understanding of blockchain fundamentals - transaction lifecycles, block confirmations, mempool mechanics, and finality across multiple chains (e.g., EVM-compatible chains, Solana, Bitcoin). • Hands-on familiarity with DeFi protocols and primitives - including AMMs (e.g., Uniswap, Curve), liquidity pools, yield mechanisms, and on-chain order books. Liquidity and Exchange knowledge (Nice to have) • Understanding of crypto liquidity concepts - market making, order routing, slippage, price impact, and the differences between CEX and DEX liquidity. Fireblocks' mission is to enable every business to easily and securely access digital assets and cryptocurrencies. In order to do that, we strongly believe our workforce should be as diverse as our clients, and this is why we embrace diversity and inclusion in all its forms. Please see our candidate privacy policy here .