JavaScript Engine Developer

Igalia

Posted: Wed, 21 May 2025

€Unlisted EUR yearly

Galicia | Spain | Full-time | Remote

C++javascriptWebAssemblyv8SpiderMonkeynode


A JavaScript Engineer at Igalia may work in a variety of technologies related to compilers and runtimes, and may contribute to V8, JavaScriptCore, SpiderMonkey, and Node.js.

Our recent work includes:

  • Standardizing and implementing JavaScript features, such as BigInt, Temporal and new class features among others.
  • Developing support for WebAssembly features in web engines, such as Exception Handling.
  • Maintaining JavaScriptCore support for embedded applications.
  • Improving V8 integration in Node.js for better performance, memory safety, and tracability.
  • Improving Node.js module loading interoperability to increase ES Module adoption in the JavaScript ecosystem.

In this position, you will have the chance to help improve the state of the art in JavaScript engines and runtimes, and also help advance open source and free software technologies. You will be working in a highly collaborative, diverse, and globally distributed team which includes members in Asia, Europe, and the Americas. Our team will provide the mentorship needed to get you involved in our implementation efforts or standardization advocacy for programming languages.

The work we do in the Compilers Team involves collaborating on large-scale software projects written in C/C++; designing, implementing, and maintaining programming language features and runtime features; and working in various aspects of web programming standardization (e.g., tests, specifications, advocacy, and so on). We do not have strict requirements for this position, but having either a willingness to learn or any existing skills and experience in these areas would be beneficial.

Working at Igalia

  • Remote-friendly environment. We provide a remote-friendly, collaborative, and supportive environment.
  • Participate on equal terms. Igalians share responsi­bilities and receive equal pay.
  • Collaborate in person. We hold annual company-wide retreats to foster in-person connections and team integration.
  • Choose the right work place for you. We provide a budget to fund a co-working space, or to help run a home office.
  • Spend time with your new baby. New parents receive 8 weeks of paid parental leave.
  • Purchase the hardware you need. Every Igalian has access to a recurring budget to spend on work-related equipment.
  • Create your own work day schedule. Igalians design their own schedule to work during the time of the day that is best for them.
  • Recharge with paid time off. Igalians have 7 weeks (35 days) of paid time off to use as they wish on vacations, national holidays, or personal downtime.
  • Navigate the early years with a mentor. Mentors help new Igalians integrate into the company and continue their professional development.
  • Collaborate with your peers. At Igalia, we care about collaboration. We work together, not compete against each other.