Senior Backend Engineer (Stellar ecosystem)

Accountabilities

• • Lead and actively contribute to the design, development, testing, deployment, and maintenance of backend systems and APIs.
  • Architect scalable, reliable, and secure backend solutions capable of supporting growing users, transactions, and evolving business requirements.
  • Develop production-grade services using TypeScript and Node.js within containerized environments.
  • Maintain high engineering standards through clean, readable, maintainable code, effective code reviews, and established development best practices.
  • Identify performance bottlenecks and optimize code, algorithms, data access, and backend services to improve system efficiency.
  • Implement monitoring, debugging, and observability capabilities to proactively identify issues and maintain high system availability.
  • Build and maintain comprehensive unit, integration, and end-to-end test suites to ensure system reliability and resilience.
  • Work with blockchain integrations and contribute to systems interacting with decentralized networks and on-chain liquidity.
  • Collaborate with product managers, frontend engineers, designers, and other stakeholders to deliver high-quality technical solutions.
  • Analyze complex technical and architectural challenges and propose practical, scalable solutions.
  • Mentor and provide technical guidance to junior engineers, helping strengthen team capabilities and engineering practices.
  • Document APIs, code, architecture, and technical processes to support knowledge sharing and efficient onboarding.
  • Evaluate emerging technologies and independently recommend improvements to the platform and engineering processes.

  Requirements

  • At least 5 years of professional software engineering experience, with significant experience in senior or lead-level backend roles.
  • Previous professional experience in the blockchain/Web3 space, with a solid technical understanding of the EVM ecosystem or other blockchain technologies.
  • Proven production experience with the Stellar network.
  • Strong professional experience with TypeScript and backend development using Node.js.
  • Strong understanding of blockchain technology, decentralized systems, and blockchain-based applications.
  • Solid knowledge of document-oriented databases and caching technologies, particularly MongoDB and Redis.
  • Experience designing backend systems and contributing to software architecture and technical design decisions.
  • Strong knowledge of software testing frameworks and engineering best practices across unit, integration, and end-to-end testing.
  • Ability to write scalable, reliable, secure, and maintainable production-grade code.
  • Experience with cloud, containerization, or modern infrastructure environments is highly valuable, including technologies such as Docker, Kubernetes, AWS, GitHub, or Cloudflare.
  • Strong analytical and problem-solving abilities, with a structured approach to diagnosing complex technical challenges.
  • Excellent communication and collaboration skills, with the ability to work effectively across technical and non-technical teams.
  • Proactive and autonomous working style, combined with the ability to contribute effectively within a distributed team.
  • Strong curiosity about emerging technologies and the ability to independently evaluate and recommend technical improvements.
  • Very strong written and spoken English.
  • Experience with Stellar Soroban smart contracts is a plus.
  • A Bachelor's or Master's degree in Computer Science or a related technical discipline is an advantage.
  • Candidates should be located in EMEA, with selected APAC locations potentially considered where working hours sufficiently overlap with European time zones.

  Benefits

  • €90,000–€130,000 annual salary on a full-time permanent contract.
  • Fully remote position for candidates in eligible EMEA or overlapping APAC locations.
  • Flexible working hours designed to support distributed collaboration.
  • 30 days of paid time off (PTO).
  • Equity participation from day one.
  • Annual team offsites.
  • Company-provided work computer with a choice of equipment.
  • €1,000 annual personal development budget after six months of employment, prorated during the first year.
  • One-time €1,000 remote-work budget for coworking, office equipment, or workspace setup.
  • Opportunity to work on Web3, blockchain, DeFi, and cross-chain infrastructure at senior technical level.
  • Exposure to modern technologies including TypeScript, Node.js, Docker, Kubernetes, AWS, MongoDB, Redis, and blockchain integrations.