Systems Engineer - Developer Productivity (San Francisco) Job at Bun, San Francisco, CA

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  • Bun
  • San Francisco, CA

Job Description

Description

Bun is an open-source JavaScript tooling company focused on making programming simpler. We've raised $26 million from top investors in Silicon Valley, are among the most popular GitHub repositories, and have a growing community of 33,000 Discord members.

We're hiring a systems engineer to join us in San Francisco to help accelerate Bun's development velocity. This role will focus on building tools and infrastructure to enhance our team's productivityranging from debugging tools that quickly identify memory leaks and performance bottlenecks to CI/CD improvements like build caching and flaky test detection.

At Bun, we take ownership of the entire software stack, making it an excellent place to learn about systems programming. Our team has developed a JavaScript & TypeScript parser, an client, TCP & UDP socket APIs, an efficient globbing library, a bash-like interpreter & shell, coreutils like 'cp', 'ls', 'seq', and more. To learn more about our daily work, check out Bun's release notes or review our pull requests.

Note: This is an on-site role at our San Francisco office. We are not hiring remotely at this time.

Requirements

  1. Strong experience with CI/CD workflows and infrastructure-as-code
  2. Experience managing self-hosted CI runners
  3. Experience in a systems programming language such as C, C++, Zig, Go, or Rust
  4. Understanding of manual memory management in large codebases
  5. Deep care for technical excellence

Bonus Points

  1. Experience with self-hosted CI runners, Buildkite, or AWS EC2
  2. Experience with Zig (most of Bun is written in Zig)
  3. Experience with internals of JavaScript runtimes: JavaScriptCore, V8, or SpiderMonkey
  4. Understanding of UNIX systems, kernel, or TCP/UDP networking

Benefits

Bun is building a team of passionate and talented engineers dedicated to improving JavaScript. We foster a workplace where trust, empowerment, and fair compensation are priorities.

  • Location: Our own office in downtown San Francisco with free daily lunch
  • Compensation: Competitive salary with startup equity and growth opportunities
  • Healthcare: Flexible plans covering physical and mental health
  • Time Off: Three weeks of paid vacation annually, plus flexible sick, family, and mental health leave
  • Salary Range: $120,000 - $180,000 + Equity
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Job Tags

Full time, Work at office, Remote work, Flexible hours,

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