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Freelance Unity Game Developer Jobs in Renton, WA

Unitytech

Machine Learning Engineer

Bellevue, WA · On-site

$143K - $214K/yr

We're looking for a Machine Learning Engineer to join our Offline Infrastructure team. This is an ... Unity Unity [NYSE: U] is the world's leading game engine, powering play for more than 3 billion ...

Unitytech

Staff Machine Learning Engineer

Bellevue, WA · On-site

$244K - $366K/yr

We are seeking a staff ML engineer to design and evolve the large-scale offline platform. This role ... Unity Unity [NYSE: U] is the world's leading game engine, powering play for more than 3 billion ...

AditiStaffing

audio engineer

Redmond, WA

Game Audio Engineer (Oculus) Duration: 6+ Months (possibility of extension) Duties:Implement ... Unity and Unreal * 3+ years of experience in game audio software development * In-depth ...

Ten4

Unreal Engineer - VR/Virtual Reality

Seattle, WA · On-site +1

Unity is a major plus * Passion for interactive experiences, games, and VR/AR * Experience in VR/AR is a major plus * Computer Science Degree and an MS Degree preferred Qualifications * Developers ...

Ten4

Unreal Engineer - VR/Virtual Reality

Seattle, WA · On-site

Unity is a major plus * Passion for interactive experiences, games, and VR/AR * Experience in VR/AR is a major plus * Computer Science Degree and an MS Degree preferred Qualifications * Developers ...

Unitytech

Senior Product Manager

Bellevue, WA · On-site

$153K - $230K/yr

Partner with stakeholders across Engineering, Quality, Design, Documentation, and Program ... Unity, Unreal, or a proprietary game engine. * Experience with XR development and graphics ...

Ten4

Senior Software Engineer - VR/Virtual Reality

Seattle, WA · On-site

$139K - $183K/yr

Unity is a nice to have, but not a necessity * Passion for interactive experiences, games, and VR ... Developers and Engineers who want to solve challenging Virtual Reality problems * Inventive and ...

Ten4

Senior Software Engineer - VR/Virtual Reality

Seattle, WA · On-site +1

$139K - $183K/yr

Unity is a nice to have, but not a necessity * Passion for interactive experiences, games, and VR ... Developers and Engineers who want to solve challenging Virtual Reality problems * Inventive and ...

Koin Games

Senior UI Artist

Seattle, WA · On-site +1

$80K - $120K/yr

Define and maintain the visual language of the game's interface. * Implement and iterate on UI directly in Unity. * Work closely with Design, UX, Art, and Engineering to improve player experiences.

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Freelance Unity Game Developer information

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$122K

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How much do freelance unity game developer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for freelance unity game developer in Renton, WA is $122,011.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,700.00 and $139,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Freelance Unity Game Developer position, and why are they important?

To thrive as a Freelance Unity Game Developer, you need strong proficiency in C# programming, Unity engine expertise, and experience in 2D/3D game development, supported by a solid portfolio. Familiarity with source control systems (like Git), project management tools (such as Trello or Jira), and sometimes Unity certifications is often expected. Excellent communication, self-motivation, time management, and problem-solving skills help you excel in remote or client-based projects. These competencies are crucial for delivering high-quality games, maintaining effective client relationships, and managing the varied demands of freelance work.

What is a Freelance Unity Game Developer job?

A Freelance Unity Game Developer is a self-employed professional who creates, prototypes, and develops games or interactive experiences using the Unity game engine. They typically work on a project basis for clients, handling tasks such as coding, asset integration, debugging, and optimization. Freelancers may collaborate with designers, artists, and other developers to bring games to life. Their job requires proficiency in C#, knowledge of Unity's tools and systems, and problem-solving skills. They often manage their own schedules, client communication, and project scope.

What are some common challenges freelance Unity game developers face, and how can they be managed?

Freelance Unity game developers often encounter challenges such as juggling multiple projects, ensuring clear communication with remote clients, and managing fluctuating workloads or income streams. Staying organized with effective project management tools and setting clear timelines with clients can help manage these demands. It's also important to regularly update technical skills and maintain a strong professional network to secure consistent work. Overcoming these challenges can lead to a rewarding freelance career with increased flexibility and the ability to work on diverse, creative projects.

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Freelance Unity Game Developer jobs near you

Game Engine Engineer, Platform

Worldscape Technology Inc.

Redmond, WA • On-site

$100K - $130K/yr

Full-time

Posted 3 days ago

Job description

Worldscape is a cutting-edge platform designed to unify distributed data, sensors, and intelligent agents across cloud, on-prem, and edge environments. By combining geospatial intelligence, physics-based 3D simulation, and reward-driven AI, Worldscape enables organizations to build immersive digital twins for predictive modeling, scenario planning, and adaptive decision-making. With a zero-trust security framework, seamless integration with legacy systems, and robust developer tools, Worldscape empowers rapid deployment of agentic applications that drive resilience and efficiency in sectors like logistics, telecom, defense, and infrastructure. 
Key Attributes:
  • Innovation Mindset: Passion for pushing the boundaries of real-time physics in interactive simulation.
  • Coding-Skills: expertise in coding languages, including C++ and game scripting.
  • Problem-Solving: Creative and analytical approach to complex simulation challenges.
  • Communication: Clear articulation of technical concepts to non-technical stakeholders. 
Responsibilities:
  • Work on game physics: data models, simulation loops, solver strategies, and integration points across engine and simulation systems.
  • Focus on core physics features: Collision detection (broad‑phase/narrow‑phase), entity controllers, vehicle dynamics with an emphasis on orbital mechanics, particles/fluid mechanics (with an emphasis on atmospheric dynamics).
  • Integrate with simulation logic (gameplay) & animation: Build physics‑driven interactions, authoring tools, and runtime hooks (e.g., inverse kinematics, state machines, event systems).
  • Help with performance optimization: Profile, optimize, and budget frame time and memory across platforms; lead multi-threading/Job System/SIMD efforts; evaluate GPU compute opportunities.
  • Stability & robustness: Establish test suites, golden scenarios, and verification and validation practices; reduce edge‑case instability (stacking, tunneling, jitter, constraint drift).
  • Tooling & workflow: Build/debug tools, visualizers, probes, and authoring pipelines that accelerate designer iteration and QA efficiency.
  • Quality & live support: work on crashes and regressions for the game engine; support content changes post‑launch without destabilizing the simulation. 
Professional Qualifications:
  • Education: BS/MS in Computer Science, Software Engineering, Physics, Mathematics (or equivalent practical experience).
  • Experience: 0 to 4+ years in real‑time/game physics engineering; shipped a title, AA/AAA preferred.
  • Programming: Experience C++ (modern standards), data‑oriented design, memory management, profiling/debugging (VTune, PIX, Nsight, RenderDoc, etc.).
  • Rigid‑body dynamics,collision detection (GJK, SAT, continuous collision detection/time of impact), integration schemes (semi‑implicit Euler, RK, constraint solvers).
  • Numerical stability, error control, and performance trade‑offs under real‑time constraints.
  • Engine Integration: Experience integrating physics with animation (animation blending, IK), gameplay systems, and rendering pipelines.
  • Performance: Multi-threading/job systems, SIMD/vectorization, cache‑friendly data structures, frame/memory budgeting across platforms.
  • Collaboration: Proven ability to lead cross‑disciplinary efforts and communicate complex technical topics clearly. 
Preferred Qualifications:
  • 2+ years’ experience in Modern Game Engines & Middleware: Unreal Engine (Chaos), Unity (DOTS/Physics), Havok, Bullet, PhysX; custom engine experience strongly preferred.
  • 1+ years’ experience in Advanced Simulation: Fracture systems, granular materials, vehicle tire models, buoyancy/aero effects; GPU compute (CUDA, compute shaders).
  • Experience with existing physics models and systems integration.
  • Networking: Deterministic simulation strategies, rollback/prediction, server authority models, cross‑platform latency mitigation.
  • Console/Platform: Shipping experience on Xbox, PlayStation, Switch, and PC; familiarity with platform TRCs/TCRs and performance certification.
  • Tooling & Scripting: Python/C#/Lua for tools and editor extensions; in‑engine visualization/debugging overlays.
  • Optimization Expertise: Broad‑phase structures (sweep-and-prune, BVH), island building, sleeping strategies, CCD tunneling avoidance; job scheduling and affinity tuning.
  • Content Pipelines: Collaboration with design/tech art to create authoring guidelines for physics assets; LOD strategies for physics complexity. 
Final compensation will be determined based on factors such as experience, skills, and qualifications. In addition to base salary, this role may be eligible for performance-based bonuses and equity awards. 
Why Worldscape? 
There is nothing more important to Worldscape than our culture. It is the fundamental means by which we will succeed as an organization. Talent, ability, drive, experience, knowledge cannot be maximized without first embracing the culture we espouse and will live every single day.  Worldscape offers great benefits, opportunities for continued growth, and the ability to directly affect change in our organization and be part of a high-growth startup at a pivotal stage. 

What we offer: 
- Competitive salary and meaningful equity 
- Attractive benefits package  
- Flexible time off policy 
- Medical, Dental and Vision insurance 
- HSA health insurance options 
- 401k plan 
- Basic and Voluntary Life Insurance
- Fast paced environment with flexibility and ownership
 
Worldscape is committed to creating a diverse and inclusive workplace and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, color, gender identity or expression, marital status, national origin, disability, protected veteran status, race, religion, pregnancy, sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.

Employment is contingent upon successful completion of a background check.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.