Software Engineer, Web Platform

Posted 11 Hours Ago
Be an Early Applicant
6 Locations
Remote or Hybrid
42K-78K Annually
Entry level
AdTech • Artificial Intelligence • Gaming • Machine Learning • Software • Virtual Reality • Metaverse
Unity is the leading platform to create and grow games and interactive experiences.
The Role
Develop and maintain Unity’s Web runtime, adding features, fixing issues, and optimizing download size, load time, startup performance, and native code. Work across C++, C#, and JavaScript while profiling and debugging browser-based runtime behavior. Collaborate with distributed teams, investigate developer-reported issues, and track evolving browser capabilities. The role may also involve WebAssembly, Emscripten, LLVM, WebGL, real-time 3D, and compression techniques.
Summary Generated by Built In

The opportunity

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.

What you'll be doing

  • 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

What we're looking for

  • 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
  • Ability to profile, debug and optimize native code
  • Effective written/verbal communication within a distributed, multi-functional team
  • A forward thinker who perseveres on low-level problems that take time to unpick

You might also have

  • Exposure to WebAssembly, Emscripten, LLVM or WebGL
  • Experience with real-time 3D or game engines
  • Familiarity with code size optimization or compression techniques
United Kingdom Base Salary Range: We determine the base salary range for this role based on your primary work location:
Zone A: £42,900 - £64,300 GBP gross
Zone B: £49,000 - £73,600 GBP gross
Finland Base Salary Range: We determine the base salary range for this role based on your primary work location:
Zone A: €51,800 - €77,600 EUR gross
Lithuania Base Salary Range: We determine the base salary range for this role based on your primary work location:
Zone A: €41,800 - €62,600 EUR gross

This range reflects the anticipated base salary for this position. Beyond base salary, this role may be eligible for equity awards and participation in our company incentive plans (such as annual discretionary bonuses or sales commissions). The final offer amount will depend on several factors, including geographic location and the candidate’s relevant experience, professional background, and skill set.


Benefits


At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.


Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.


While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program


Life at Unity


Unity [NYSE: U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown in Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D — closing the gap between ideas and reality. For more information, please visit www.unity.com.


Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.


This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.
This posting is intended to fill an existing vacancy, and we are committed to providing applicants with updates throughout the hiring process in accordance with applicable law.


Headhunters and recruitment agencies may not submit resumes/CVs through this website or directly to managers. Unity does not accept unsolicited headhunter and agency resumes. Unity will not pay fees to any third-party agency or company that does not have a signed agreement with Unity.
Your privacy is important to us. Please take a moment to review our
Prospect and Applicant Privacy Policies. Should you have any concerns about your privacy, please contact us at [email protected].

Skills Required

  • Hands-on development experience with C++
  • Working familiarity with C# and/or JavaScript
  • Curiosity about how browsers work under the hood
  • Ability to profile, debug, and optimize native code
  • Effective written and verbal communication in a distributed, multifunctional team
  • Ability to persevere on complex low-level problems
  • Exposure to WebAssembly, Emscripten, LLVM, or WebGL
  • Experience with real-time 3D or game engines
  • Familiarity with code size optimization or compression techniques

Unity Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Unity and has not been reviewed or approved by Unity.

  • Healthcare Strength Core medical, dental, vision, life/disability, and mental‑health/EAP offerings are positioned as comprehensive across eligible locations. This breadth aligns with large‑tech standards and is highlighted in official materials.
  • Retirement Support A 401(k) plan with employer matching is part of the U.S. package. Retirement benefits are characterized as competitive and a stable element of total rewards.
  • Parental & Family Support Paid parental leave and family‑care support are emphasized, with indications of generous time off for new parents. These programs are presented as global in scope, with specifics verified by location.

Unity Insights

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The Company
HQ: San Francisco, CA
4,500 Employees
Year Founded: 2004

What We Do

Unity [NYSE: U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown in Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D — closing the gap between ideas and reality.

Why Work With Us

We believe the world is a better place with more creators in it. This is at the core of our business because we believe our technology can change the world. Our products give content creators the tools to not just entertain but to create innovative RT3D experiences and deliver better processes for almost every industry.

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