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ZeroTier Logo ZeroTier · IT - Software Development

Senior Back-End Engineer (Go)

Netherlands, Utrecht · Job Posted January 08, 2026
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Job Description

ZeroTier builds next-generation connectivity and cybersecurity technology used by millions of people and organizations worldwide. Our platform enables highly secure, peer-to-peer virtual networks across a wide range of use cases. Our mission is to make secure, peer-to-peer networking simple and accessible, without sacrificing performance or security, supported by long-term investors including Battery Ventures, Bonfire Ventures, and Anorak Ventures.

Job Responsibility

  • Define and document new API endpoints and implement business logic in Go to support platform features
  • Design and maintain public service interfaces that support high performance and availability
  • Work with PostgreSQL, Redis, PubSub, and OpenFGA to power Central features
  • Implement user-facing features in Vue.js
  • Collaborate on API design to support both internal UI needs and public API consumers
  • Utilize best practices for securing public services and work with automated testing to ensure code quality
  • Provide technical mentorship and contribute to engineering best practices across the team

Requirements

  • Senior level experience building and owning distributed systems at scale
  • Advanced knowledge of Go service development and best practices
  • Proficiency in modern web technologies (JavaScript/TypeScript, CSS) and frontend frameworks (Vue.js/React)
  • Extensive experience integrating with and extending backend REST APIs
  • Experience working in a team with a continuous growth mindset
  • History of applying best practices for security in public services
  • Ability to write technical documentation and communicate effectively with team members
  • Experience in a startup or fast-paced environment is a strong plus

Nice to have

Experience in a startup or fast-paced environment is a strong plus

What we offer

  • Competitive salary
  • Hybrid work environment: we work 3 days at our office at Utrecht Central Station and 2 days from home
  • Equity compensation package
  • Retirement savings plan with employer contribution
  • 25-holiday days PTO per year
  • Flexible work hours (subject to management approval)
  • Career Enhancement Funds
  • Employee Referral Bonus
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