Demo

Engineering Manager

bun
San Francisco, CA Full Time
POSTED ON 8/28/2025 CLOSED ON 12/2/2025

What are the responsibilities and job description for the Engineering Manager position at bun?

Bun is on a mission to make JavaScript more productive. Bun is an all-in-one JavaScript runtime, bundler, transpiler, package manager and test runner. We have raised $26 million in funding from prominent VC’s like Kleiner Perkins and Khosla Ventures.

We're hiring an Engineering Manager to lead and grow our team of systems engineers in San Francisco. In this role you will lead a growing team of 10 software engineers working on low-level systems in Bun's open-source runtime, and paid products.

At Bun, we take ownership over the entire software stack, making this an exceptional place to grow technical depth. You'll be mentoring engineers who work on both systems engineering like JavaScript runtimes and parsers, and product engineering like JavaScript APIs, frontend applications, and documentation.

Responsibilities

  • Lead and grow a team of systems engineers building Bun's runtime and tooling
  • Provide technical leadership for complex systems written in C/C and Zig
  • Unblock engineers by digging into technical issues and occasionally contributing code
  • Establish processes to improve team productivity and code quality
  • Mentor junior engineers and help them develop technical skills
  • Set high standards for technical excellence and foster a culture of craftsmanship
  • 3 years experience managing engineering teams.
  • Experience implementing large codebases with manual memory management reliably
  • Strong technical background in systems languages like C, C , Zig, or Rust
  • Ability to balance technical leadership with people management
  • Ability to triage and debug complex technical issues, to inform issue ownership
  • Understanding of UNIX systems, networking, or JavaScript runtimes
  • This is an on-site role at our office in San Francisco

Bonus Points

  • Track record of shipping reliable software at scale
  • Experience with Zig (most of Bun is written in Zig)
  • Experience with JavaScript runtimes like JavaScriptCore, V8, or SpiderMonkey

Bun is building a team of passionate and talented people who are excited to make JavaScript better for everyone. To achieve that goal, we are also building a workplace where people are trusted, empowered, and well-compensated for their work.

  • Location: We have our own office in downtown San Francisco and cater free lunch and dinner every day
  • Compensation: We offer competitive compensation with startup equity and room to grow based on your contributions
  • Healthcare: We have flexible health plans that cover both physical and mental healthcare
  • Time Off: Enjoy three weeks of paid time-off each year with flexible sick, family, and mental health leave
  • Compensation: $200,000 - $250,000 Equity

Salary : $200,000 - $250,000

Warehouse Manager
Steven Engineering, Inc. -
South San Francisco, CA
Lead Growth Data Scientist – AI Search
Adobe Experience Manager -
San Francisco, CA
Business Development Manager
Banner Engineering and Careers -
San Francisco, CA

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Engineering Manager?

Sign up to receive alerts about other jobs on the Engineering Manager career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$151,448 - $188,145
Income Estimation: 
$203,425 - $249,816
Income Estimation: 
$213,375 - $267,876
Income Estimation: 
$190,687 - $235,769
Income Estimation: 
$151,448 - $188,145
Income Estimation: 
$203,425 - $249,816
Income Estimation: 
$213,375 - $267,876
Income Estimation: 
$190,687 - $235,769
Income Estimation: 
$85,996 - $102,718
Income Estimation: 
$111,859 - $131,446
Income Estimation: 
$110,457 - $133,106
Income Estimation: 
$105,809 - $128,724
Income Estimation: 
$122,763 - $145,698
Income Estimation: 
$162,237 - $199,353
Income Estimation: 
$222,110 - $256,974
Income Estimation: 
$224,976 - $270,947
Income Estimation: 
$205,834 - $254,869
Income Estimation: 
$242,530 - $287,120
Income Estimation: 
$190,687 - $235,769
Income Estimation: 
$218,238 - $263,470
Income Estimation: 
$213,354 - $274,761
This job has expired.
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Not the job you're looking for? Here are some other Engineering Manager jobs in the San Francisco, CA area that may be a better fit.

  • K&A Engineering San Francisco, CA
  • K&A Engineering Consulting – is a privately held company, providing comprehensive consulting, engineering and design, program/project management, construct... more
  • 1 Month Ago

  • Adobe Experience Manager San Francisco, CA
  • Senior Product Manager, Photoshop R163935 01/05/2026 San Francisco, California, United States of America Los Angeles, California, United States of America ... more
  • 9 Days Ago

AI Assistant is available now!

Feel free to start your new journey!