Software Engineer - Stellar #3

Fireblocks
Prague, Tel Aviv, Warsaw, Belgrade
Workplace: OnsiteFull timePLN 300,000 - 3,800,000 annuallyFunction: Software EngineeringExperience: 7+ yearsEducation: bachelorsSkills: ["Systems thinking","Reliability focus","Ability to work with ambiguity","Clear communication","Collaboration"]

Build mission-critical backend systems for on-chain access in a FinApps Access team. You’ll design and deliver scalable APIs and microservices that route, protect, and optimize high-volume transactions across EVM and non-EVM networks, from architecture through production deployment. Lead integrations with DeFi protocols, on-chain data sources, and blockchain nodes, while researching new blockchain standards and optimizing performance, reliability, and security.

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FursaFursa
Fireblocks
Fireblocks
2 days ago

Software Engineer - Stellar #3

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Source: Company careers pageValidated by: Fursa AI
Last checked: 13 hours agoStatus: Live

Job Summary

Build mission-critical backend systems for on-chain access in a FinApps Access team. You’ll design and deliver scalable APIs and microservices that route, protect, and optimize high-volume transactions across EVM and non-EVM networks, from architecture through production deployment. Lead integrations with DeFi protocols, on-chain data sources, and blockchain nodes, while researching new blockchain standards and optimizing performance, reliability, and security.
Location: Prague, Tel Aviv, Warsaw, Belgrade
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design and build robust, scalable backend services for high-volume on-chain transaction flows across EVM and non-EVM networks.
  • •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 many chains.
  • •Research and evaluate emerging blockchain technologies, protocols, and standards to stay current.
  • •Optimize production systems for performance, reliability, and security to reduce latency and increase throughput.

Pay and Benefits

Salary: PLN 300,000 - 3,800,000 annually
Equity and Bonus:Equity
Perks:Equity

Key Requirements

  • •7+ years of experience as a Backend or Full Stack Engineer.
  • •Bachelor of Science (B.Sc.) or equivalent degree/experience.
  • •Blockchain/Web3 experience, including transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data.
  • •Experience across multiple blockchain ecosystems: EVM-compatible chains and non-EVM chains such as Solana, TON, Tron, or similar.
  • •Proficiency in Node.js and TypeScript, plus experience designing and operating microservices in CI/CD production environments.
Experience:7+ yearsBlockchainWeb3DeFiMicroservices
Education:Bachelor's
Skills:Systems thinkingReliability focusAbility to work with ambiguityClear communicationCollaboration
Languages:English
Tech Stack:Node.jsTypeScriptMicroservicesCI/CDEVMEthereumPolygonArbitrumBaseSolanaTONTronEthers.jsViemWeb3.jsSolana web3.jsReact

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