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Software Engineer (Web Platform)

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Onsite

Software Engineer (Web Platform)

Unity

Software Engineer (Web Platform)

Skills

C#WorkdayFullstack DevelopmentJavascript

1 month ago

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Important information


Contract type:

Permanent

Salary:

£42,900 – £73,600 / year

Location:

Vilnius, Vilnius City Municipality, Lithuania

Work mode:

Onsite

Published on:

12 September 2026

What they need


  • We are hiring for a Software Engineer to join our Web Platform team here at Unity
  • Unity’s Web platform lets games and real-time 3D content run in a browser, on any internet connected device
  • Browsers have advanced enormously in the last few years, browser gaming is going through a revival, and the Unity Web runtime is the technology that makes it possible
  • Our work also supports an exciting new partnership with a major platform, which puts what this team builds in front of audiences at a scale few browser platforms reach
  • You will help maintain and extend the Unity Web runtime alongside engineers who have spent their careers in this space, including people who helped invent the browser technology we build on
  • This is not website development
  • We embed Unity inside the browser and work close to the metal across C++, C# and JavaScript
  • You will have real opportunity to grow, to learn from experienced teammates, and to see your work reach developers all over the world
  • Maintain and extend the Unity Web runtime, contributing features and fixes across the platform
  • Help improve the download size, load time and startup performance of Web builds
  • Develop, profile, debug and optimize across C++, C# and JavaScript
  • Scope your work with your manager and teammates, building on established patterns in the codebase
  • Investigate and fix issues raised by internal teams and by developers shipping on the Web platform
  • Keep pace with the browser’s constantly evolving capabilities and bring what you learn back to the team

Benefits

  • Comprehensive health, life and disability insurance
  • Employee stock ownership
  • Generous vacation and personal days
  • Office food and free snacks, lots of health options!
  • Employee Resource Groups
  • Training and development programs
  • Commute subsidy
  • Competitive retirement/pension plans
  • Paid leave for new parents
  • Mental Health and Wellbeing programs and support
  • Global Employee Assistance Program
  • Volunteering and donation matching program- A forward thinker who perseveres on low-level problems that take time to unpick
  • Ability to profile, debug and optimize native code
  • Hands-on development experience with C++
  • Working familiarity with C# and/or JavaScript
  • Curiosity about how browsers work under the hood, rather than about building websites
  • Effective written/verbal communication within a distributed, multi-functional team
  • Exposure to WebAssembly, Emscripten, LLVM or WebGL
  • Experience with real-time 3D or game engines
  • Familiarity with code size optimization or compression techniques

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