Principal Game Engine Engineer, Platform

Worldscape; Redmond (WA); On-site; USD 170,000 - 250,000; Full time

Benefits offered by this job

Competitive salary and equity

Benefits package

Flexible time off

Medical, Dental, Vision

HSA options

401k plan

Life Insurance

Fast-paced environment

Job summary

Worldscape seeks an experienced Principal Game Engine Engineer to join the Platform team in Redmond, WA. You will design and optimize real-time physics systems, architect scalable physics solutions, and mentor engineers to deliver high-quality, shippable features across vehicles, environments, and simulations.

This onsite role emphasizes collaboration with data, animation, and rendering pipelines, offering an opportunity to shape outcomes in a fast-moving, innovative company.

Qualifications

• BS/MS in Computer Science, Software Engineering, Physics, Mathematics or equivalent practical experience.
• 10 years in real-time/game physics engineering with 2 shipped titles.
• Expert C (modern standards) and memory profiling (VTune, PIX, Nsight, RenderDoc).
• Experience with physics in animation, gameplay, and rendering pipelines.
• Knowledge of rigid-body dynamics, collision detection, and solvers.
• Strong collaboration across disciplines and teams.

Responsibilities

• Own the physics architecture and data models across engine and simulation systems.
• Deliver core physics features: collision detection, entity controllers, vehicle dynamics.
• Integrate physics with animation, gameplay, and tools; build runtime hooks and tooling.
• Profile, optimize, and budget frame time and memory; lead multi-threading/SIMD efforts.
• Establish test suites, validation practices, and reduce edge-case instability.
• Mentor engineers, set technical direction, and uphold coding standards and documentation.
• Support live content and post-launch changes without destabilizing simulations.

Skills

Leadership

Mentorship

Problem solving

Communication

Innovation

Real-time physics

Education

BS/MS in CS/SE/Physics/Math

Tools

VTune

PIX

Nsight

RenderDoc

Unreal Engine

Unity DOTS/Physics

Havok

Bullet

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.

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.

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.