Full Stack Engineer, Blockchain

Fireblocks
London
Workplace: OnsiteFull timeFunction: Software EngineeringEducation: bachelorsSkills: ["Systems thinking","Reliability focus","Communicating clearly","Collaboration","Driving technical decisions"]

Build mission-critical backend and API services for high-volume on-chain transaction flows across EVM and non-EVM networks. Own end-to-end delivery, from architecture and integrations with DeFi protocols and blockchain nodes to production deployment. Evaluate emerging blockchain technologies, optimize performance and reliability, and collaborate across product, protocol research, and platform engineering to ship scalable features with strong security and correctness.

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FursaFursa
Fireblocks
Fireblocks
4 weeks ago

Full Stack Engineer, Blockchain

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 4 hours agoStatus: Live
Reposted: similar role first listed 4 months ago

Job Summary

Build mission-critical backend and API services for high-volume on-chain transaction flows across EVM and non-EVM networks. Own end-to-end delivery, from architecture and integrations with DeFi protocols and blockchain nodes to production deployment. Evaluate emerging blockchain technologies, optimize performance and reliability, and collaborate across product, protocol research, and platform engineering to ship scalable features with strong security and correctness.
Location: London
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design and build scalable backend services for high-volume on-chain transaction flows across multiple blockchain networks.
  • •Own end-to-end backend development of components and APIs, from architecture decisions through production deployment.
  • •Lead integrations with DeFi protocols, on-chain data sources, and blockchain nodes across a wide range of chains.
  • •Research and evaluate emerging blockchain technologies, protocols, and standards to stay at the cutting edge.
  • •Optimize production systems for performance, reliability, and security to reduce latency and increase throughput.

Pay and Benefits

Equity and Bonus:Equity

Key Requirements

  • •7+ years of experience as a Backend or Full Stack Engineer.
  • •Bachelor of Science (B.Sc.) or equivalent degree/experience.
  • •Blockchain and Web3 experience, including transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data.
  • •Experience working across multiple blockchain ecosystems, including both EVM and non-EVM chains.
  • •Proficiency in Node.js and TypeScript, plus microservices experience in CI/CD production environments.
Experience:BlockchainWeb3DeFi
Education:Bachelor's
Skills:Systems thinkingReliability focusCommunicating clearlyCollaborationDriving technical decisions
Languages:En
Tech Stack:Node.jsTypeScriptMicroservicesCI/CDReactEthers.jsViemWeb3.jsSolana web3.js

Company Brief

Fireblocks
Provides institutional-grade digital asset custody, transfer, and settlement infrastructure enabling banks, exchanges, and enterprises to securely issue, store, and move cryptocurrencies and tokenized assets.
Industry: Fintech Infrastructure
Company Size: Large (251 to 1,000 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series E+
Headquarters: New York, United States
Founded: 2018
WebsiteLinkedIn