Senior Web Platform Engineer (Remote)

Unity Technologies; Brighton; Remote; GBP 46,000 - 86,000; Full time

Benefits offered by this job

Health insurance

Commute subsidies

Employee stock ownership

Retirement or pension plans

Vacation and personal days

Parental leave and family-care

Mental health and wellbeing support

Employee resource groups

Training and development

Volunteering and donation matching

Job summary

Unity Technologies in the United Kingdom is hiring a Senior Software Engineer for the Web Platform team to advance the Unity Web runtime across browsers and devices. You will tackle multithreading, code size reductions, and time-to-play improvements, collaborating with engineers across Unity to translate needs into platform work and mentor teammates as the team pushes Web capabilities forward.

The role supports remote work in the UK, Finland, or Lithuania, with UK Zone A/B and European ranges

Qualifications

• Deep, hands-on proficiency with C++ in performance-sensitive code
• Development experience with WebAssembly using Emscripten and/or LLVM
• Ability to break down complex technical problems and complete work with independent technical judgment
• Experience profiling, debugging, and optimizing across the native and browser boundary
• Working knowledge of C# and JavaScript
• Strong written and verbal communication with peers, managers, and other teams
• Proven mentoring experience to raise code quality
• English proficiency for professional communication worldwide
• Desirable: browser engine or runtime contributions
• Desirable: rendering/physics/audio knowledge in real-time 3D engine
• Desirable: familiarity with compression/build-size reduction

Responsibilities

• Own meaningful areas of the Unity Web runtime from design through release
• Research, design, and implement optimizations for the Web build target
• Improve download size, loading, and startup performance for Web builds
• Solve low-level technical problems across C++, C#, and JavaScript
• Collaborate with Unity teams to translate needs into platform work
• Mentor teammates and help set code quality standards
• Keep Unity at the frontier of evolving Web capabilities

Skills

C++

WebAssembly

C#

JavaScript

Mentoring

Communication

English

Independent judgment

Debugging

Tools

Emscripten

LLVM

Job description

Unity Technologies in the United Kingdom is hiring a Senior Software Engineer for the Web Platform team to advance the Unity Web runtime across browsers and devices. You will tackle multithreading, code size reductions, and time-to-play improvements, collaborating with engineers across Unity to translate needs into platform work and mentor teammates as the team pushes Web capabilities forward.

The role supports remote work in the UK, Finland, or Lithuania, with UK Zone A/B and European ranges