Open-source, blazing fast alternative to corporate VPNs

Senior Fullstack Engineer

$100k - $180k / 0.25% - 1.00%
Mountain View, CA / Remote
Job Type
6+ years
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Jamil Bou Kheir
Jamil Bou Kheir

About the role

We’re looking for a senior Elixir engineer to make foundational technology decisions and help mentor a growing team. This would be a great role for a seasoned engineer looking to join a fast-growing security startup.

If you’re not an Elixir/Phoenix or Erlang expert, that’s ok! While a certain amount of Elixir proficiency is ideal for this role, we’re happy to bring the right candidate up to speed quickly. We value motivation to learn quickly and hack on challenging technical problems above all else.

Key features that make the role unique:

  • We use Elixir/Phoenix for the orchestration layer with some lower-level parts moving to Rust soon. If you love solving complex, distributed systems problems and/or enjoy hacking on low-level networking code that interfaces closely with the Linux kernel, this role is ideal for you!
  • Most of your work will be public — our codebase is open source.
  • Work closely with our users to ship features and fix bugs.
  • Be a founding engineer - You’ll make core architecture choices, shape company culture, and help set the bar for quality and execution.

About the interview

Hiring Process

We value the ability to learn quickly, take ownership, and ship product features over raw years of experience or company logos on your resume. Our goal is to make a well-informed decision based on your ability to do the work you’ll be expected to do at Firezone without subjecting you to a long drawn-out process. Our process involves:

  1. Introduction Call - A chance to connect and see if there is interest from both sides, share more about our vision and roadmap, and learn more about your experience.
  2. Take-home Coding Challenge - We're not fans of live, hours-long coding interviews since they don't resemble how most engineers get work done. Instead, we'll give you a 1-2 hour take-home challenge related to the role. You’ll be solving a problem similar to something you’d face in your day-to-day work.
  3. Take-home Followup Call - We’ll hop on a call to go through the completed take-home challenge and a few technical Q&A related to the role.
  4. Final call - If we have any additional questions we’ll schedule a short follow up call.
  5. Background and reference checks.
  6. Offer Decision

Why you should join Firezone

Firezone secures remote access to networks and applications for organizations of all sizes around the world. We’re building a next-generation, open-source network security platform that leverages new tech like WireGuard and eBPF to provide a run-anywhere firewall for the work-anywhere era.

We’re backed by world-class investors such as Y Combinator, 1984 Ventures, Uncorrelated Ventures, Gaingels, Amino Capital, and many notable angel investors.


  • Remote-first work with the option to work locally out of our Mountain View office if you’re in the Bay Area. We attend conferences and hold fun off-sites, so you’ll still get the chance to meet everyone on the team if you work remotely.
  • Flexible budget for your ideal workspace setup. Whether it’s a custom-built beefy Linux desktop or an Apple-powered mobile workstation — build your dream battlestation to get your work done! Use whatever gear suits you best.
  • Comprehensive medical/dental/vision plans.
  • Flexible work hours and paid vacation.
  • $100/month stipend to support open source.
Team Size:5
Location:Mountain View
Jamil Bou Kheir
Jamil Bou Kheir
Jason Gong
Jason Gong