Senior Software Engineer

Unity; Seattle (WA); On-site; USD 147,000 - 220,000; Full time

Benefits offered by this job

Health insurance

Stock ownership

Pension plan

Vacation days

Parental leave

Commute subsidy

Wellbeing programs

Employee resource groups

Volunteer matching

Training & development

Job summary

Unity is seeking a Senior Software Engineer to join a new team delivering platform support for a partner bringing games to TV and mobile. You will help design cross‑platform workflows and optimize WebGPU/WebAssembly performance for fast load times.

You will collaborate with Unity R&D worldwide to profile and optimize performance, fix bugs, and improve automated testing and code reviews, all while delivering scalable, high‑quality code in C#, C++, and JavaScript.

Qualifications

• Strong modern C# proficiency with a dedication to writing clean, testable code.
• Strong C++ and JavaScript skills in a large codebase.
• Solid understanding of how large applications span languages/frameworks including how synchronous/async calls are made and how memory is owned and marshalled.
• Experience designing and implementing scalable feature sets in a large multithreaded codebase.
• Proficiency with platform profiling tools (CPU/GPU/IO/memory).

Responsibilities

• Working as part of an agile team, to design and develop features and workflows in the Unity Editor to support these specific platform configurations.
• Profile and optimize WebGPU/WebAssembly performance — tackling load times, memory management, and the unique constraints of a browser-hosted Unity runtime.
• Ensure a stable platform by investigating and resolving bug reports
• Strengthen quality and delivery through automated testing and thoughtful code reviews — while fostering a culture of innovation, teamwork, and technical excellence.

Skills

C#

C++

JavaScript

Multithreading

Profiling

Job description

We are looking for a Senior Software Engineer to join a new team delivering Unity platform support for a key platform partner bringing games to TV and mobile form factors. To reach every screen, we will be leveraging both streaming from Linux in the cloud and Web browser builds to be instantly loadable.

The team’s goals include delivering stable platform support, realizing developer workflows for Unity users to unlock the unique features of this platform, and leading optimization initiatives to enable Unity to be efficient on the widest possible array of target devices.

You have probably worked on performance-critical, cross-platform applications in the past and you know the importance of writing fast, portable and scalable code. You may also be familiar with real-time, browser-based application development using technologies such as HTML5, WebGL/WebGPU, WebAssembly/Emscripten; and/or Linux application technologies such as SDL, Wayland, Linux desktop.

Base Salary Range: We determine the base salary range for this role based on your primary work location:Zone A: $115,400 - $173,000 USD grossZone B: $130,400 - $195,600 USD grossZone C: $146,500 - $219,700 USD 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.

What you’ll be doing

• Working as part of an agile team, to design and develop features and workflows in the Unity Editor to support these specific platform configurations.
• In collaboration with Unity R&D teams around the world, profile and optimize WebGPU/WebAssembly performance — tackling load times, memory management, and the unique constraints of a browser-hosted Unity runtime.
• Ensure a stable platform by investigating and resolving bug reports
• Strengthen quality and delivery through automated testing and thoughtful code reviews — while fostering a culture of innovation, teamwork, and technical excellence.

What we’re looking for

• Strong modern C# proficiency with a dedication to writing clean, testable code.
• Strong C++ and JavaScript skills in a large codebase
• Solid understanding of how large applications span languages/frameworks including how synchronous/async calls are made and how memory is owned and marshalled.
• Experience designing and implementing scalable feature sets in a large multithreaded codebase
• Proficiency with platform profiling tools (CPU/GPU/IO/memory)

You might also have (optional)

• Familiarity with real time 3D rendering techniques and graphics APIs including WebGPU and/or Vulkan
• A methodical approach to researching and developing innovative optimization solutions
• A passion for the future of computer games or real-time 3D experiences in a variety of settings
• Familiarity with how to best use AI in the software development process.

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.

• 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.