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Trainee Unity 3D Developer Jobs in Seattle, WA (NOW HIRING)

AST

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Software Engineer At AST, we enhance the efficiency, productivity, and safety of flexibleaseptic ... Experience developing interactive 3D or simulation applications using Unity. Eligibility ...

Automated Systems of Tacoma

Software Engineer

Tacoma, WA · On-site

$125 - $140/hr

AST is looking for a driven Software Engineer to join our Research and Development team in Tacoma ... Experience developing interactive 3D or simulation applications using Unity. Benefits * Competitive ...

New

AST

Software Engineer

Tacoma, WA · On-site

$125K - $140K/yr

Software Engineer At AST, we enhance the efficiency, productivity, and safety of flexible aseptic ... Experience developing interactive 3D or simulation applications using Unity. Eligibility ...

Nvidia

Senior Workflow Specialist - Isaac Robotics

Redmond, WA · On-site

$87K - $108K/yr

Provide feedback to engineering & product teams * Working with various customers around the world ... Simulation and experience with related tooling such as Isaac Sim, Gazebo, Unreal, Unity, MuJoco, or ...

Meta

Product Designer, Human Interface

Redmond, WA

$170K/yr

... Engineering, and Product Management * Advanced skills in prototyping 3D interactions or interfaces using Unity and other industry-leading tools * Expertise in designing and implementing novel user ...

Meta

Product Designer, Human Interface

Seattle, WA

$170K/yr

... Engineering, and Product Management * Advanced skills in prototyping 3D interactions or interfaces using Unity and other industry-leading tools * Expertise in designing and implementing novel user ...

Meta

Product Designer, Human Interface

Seattle, WA

$110K/yr

Familiarity working with cross-functional stakeholders such as User Research, Engineering, and Product Management * Basic understanding of prototyping 3D interactions or interfaces using Unity or ...

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Trainee Unity 3D Developer information

What does a trainee Unity 3D developer do?

A Trainee Unity 3D Developer learns to create interactive 3D content, such as games or simulations, using the Unity engine. They typically assist in designing, coding, and testing game mechanics, environments, and user interfaces under the guidance of more experienced developers. Trainees also spend time learning C# programming, understanding Unity's workflow, and gaining experience with 3D assets and animation. The role is designed to build foundational skills for a career in game development or real-time 3D applications.

What are the key skills and qualifications needed to thrive as a trainee Unity 3D developer?

To thrive as a Trainee Unity 3D Developer, you need a solid understanding of C# programming, basic 3D math, and a keen interest in game development, often backed by a relevant degree or coursework. Familiarity with the Unity engine, version control systems like Git, and tools such as Visual Studio is typically required. Strong problem-solving, creativity, and effective teamwork skills help you stand out in collaborative and iterative development environments. These skills ensure you can contribute effectively to game projects, adapt to evolving requirements, and grow within the fast-paced industry.

What types of projects and tasks can a trainee Unity 3D developer expect to work on during their initial months?

As a Trainee Unity 3D Developer, you can expect to start by assisting with basic game object creation, scripting simple behaviors, and debugging existing features under the supervision of senior developers. You'll likely collaborate closely with artists, designers, and other programmers to implement interactive elements, test prototypes, and help optimize performance. Over time, you'll gradually take on more complex tasks, such as integrating assets, refining user interfaces, and contributing to code reviews, all within a supportive team environment. This hands-on experience is designed to build your confidence and technical skills, setting a strong foundation for future growth.

What is the difference between Trainee Unity 3D Developer vs Junior Unity 3D Developer?

AspectTrainee Unity 3D DeveloperJunior Unity 3D Developer
Required CredentialsBasic knowledge of Unity, programming fundamentalsProficiency in Unity, C# scripting, some project experience
Work EnvironmentTraining programs, entry-level projects, supervised tasksActive development, independent tasks, team collaboration
Employer & Industry UsageInternships, apprenticeships, entry-level roles in gaming/AR/VRFull-time roles in game studios, AR/VR companies, simulation firms

In summary, a Trainee Unity 3D Developer is typically in a learning phase with supervised training, while a Junior Unity 3D Developer has practical experience and can handle development tasks more independently.

What are popular job titles related to Trainee Unity 3D Developer jobs in Seattle, WA?

For Trainee Unity 3D Developer jobs in Seattle, WA, the most frequently searched job titles are:

What job categories do people searching Trainee Unity 3D Developer jobs in Seattle, WA look for?

The top searched job categories for Trainee Unity 3D Developer jobs in Seattle, WA are:

Trainee Unity 3D Developer jobs near you
Infographic showing various Trainee Unity 3D Developer job openings in Seattle, WA as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Principal Game Engine Engineer, Platform

Worldscape Technology Inc.

Redmond, WA • On-site

$160K - $200K/yr

Full-time

Re-posted yesterday

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. 

Worldscape is seeking an experienced Principal Game Engine Engineer to join our fast-moving, innovative Platform team. The Principal Game Engine Engineer will participate in the design, implementation, and optimization of the real‑time physics systems that underpin the simulation in our applications. You will architect scalable physics solutions, integrate tightly with the data fabric, animation, and rendering pipelines, and drive innovation in physics-led simulation techniques to deliver responsive interactions across vehicles, environments, and all other simulation assets. As a Principal Engineer you will set technical directions, mentor engineers, and partner with Platform and Product Management to turn creative vision into performant, shippable features and customer applications. 
 
This is an onsite role located in Redmond, WA. 
Key Attributes:
  • Innovation Mindset: Passion for pushing the boundaries of real-time physics in interactive simulation. 
  • Leadership & Mentorship: Ability to guide developers, set technical direction for an area, and enforce best practices.
  • Problem-Solving: Creative and analytical approach to complex simulation challenges.
  • Communication: Clear articulation of technical concepts to non-technical stakeholders. 
Responsibilities:
  • Own the physics architecture: Define data models, simulation loops, solver strategies, and integration points across engine and simulation systems.
  • Deliver 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).
  • Performance ownership: 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.
  • Cross‑functional leadership: Partner with back-end, AI, data pipeline, and platform teams; communicate constraints/trade‑offs; align milestones with production.
  • Mentorship & standards: Guide engineers via reviews, design docs, and coding standards; cultivate a high bar for craft, documentation, and reproducibility.
  • Quality & live support: Own crash triage and regression control for physics; 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: 10+ years in real‑time/game physics engineering; 2+ shipped titles with substantial physics ownership (AA/AAA preferred).
  • Programming: Expert 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:
  • 15+ years’ experience in Modern Game Engines & Middleware: Unreal Engine (Chaos), Unity (DOTS/Physics), Havok, Bullet, PhysX; custom engine experience strongly preferred.
  • 10+ 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.