The opportunity
What you'll be doing
- Help define runtime protocols, formats, and execution models to encode, compress, and replay interactive 3D content between engines and AI models.
- Own and evolve critical subsytems across the engine stack, from low-level C++ runtime code to high-level C# APIs across editor, build, simulation, streaming, and playback.
- Build systems to capture, serialize, stream, and synchronize scene state, components, assets, user interactions, and rendering data under tight bandwidth, latency, determinism, and memory constraints.
- Design interfaces and feedback loops that allow AI systems to inspect engine state, invoke engine capabilities, and validate outcomes.
What we're looking for
- Core Engine Experience: Experience building or fundamentally extending game engine cores, middleware, or foundational systems (e.g. serialization, build pipelines, memory subsystems).
- AI Systems Fluency: Practical experience integrating AI/ML into production software, including areas such as model training, data collection, evaluation loops, agents, tool use, or model-context protocols.
- Architecture & Execution: Ability to design modular, testable systems - then implement, profile, debug, and ship them end-to-end.
- High-Performance Coding: Strong C++ and C# skills, with practical understanding of CPU caches, memory layout, allocation patterns, branch behavior, profiling, and performance tradeoffs in real-time systems.
- Engine-Wide Breadth: Hands-on experience across multiple engine domains — such as physics, animation, input, rendering, assets, or build systems — and how they interact.
You might also have
- Experience building infrastructure for training data generation, synthetic data, simulation environments, evaluation harnesses, reinforcement learning, or agentic workflows.
- Familiarity with 3D data formats and spatial content pipelines, such as USD, glTF, procedural generation, or semantic scene representations.
- Experience with MCP-style tool interfaces, LLM agents, multimodal models, inference pipelines, embeddings, vector search, or AI systems that inspect and act on structured application state
- Knowledge of compression, streaming, replication, authority models, RPCs, state diffing, delta encoding, or network protocols for real-time interactive systems.
- Experience with determinism, replay systems, simulation consistency, multithreading, job systems, lock-free programming, Unity DOTS, or other data-oriented runtime architectures.
Additional information
- Relocation support is not available for this position
- Work visa/immigration sponsorship is not available for this position
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
We offer a wide range of benefits designed to support employees' well-being and work-life balance. You can read more about them on our career page.
Unity [NYSE: U] is the leading platform to create and grow games and interactive experiences. Creators, ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more, use Unity to bring their imaginations to life across multiple platforms, from mobile, PC, and console, to spatial computing.
As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month. For more information, please visit Unity.
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.
Headhunters and recruitment agencies may not submit resumes/CVs through this Web site 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 Privacy Policy and Applicant Privacy Policy. Should you have any concerns about your privacy, please contact us at [email protected].
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Skills Required
- Built or extended game engine cores, middleware, or foundational systems (serialization, build pipelines, memory subsystems)
- Practical experience integrating AI/ML into production software (training, data collection, evaluation loops, agents, or model-context protocols)
- Design and implement modular, testable systems and ship end-to-end (implement, profile, debug, optimize)
- Strong C++ and C# skills with practical understanding of CPU caches, memory layout, allocation patterns, profiling, and performance tradeoffs in real-time systems
- Hands-on experience across multiple engine domains (physics, animation, input, rendering, assets, build systems) and their interactions
- Experience building infrastructure for training data generation, synthetic data, simulation environments, or RL/agent workflows
- Familiarity with 3D data formats and spatial content pipelines (USD, glTF, procedural/semantic scene representations)
- Experience with LLM agents, multimodal models, inference pipelines, embeddings, or vector search applied to application state
- Knowledge of compression, streaming, replication, authority models, RPCs, state diffing, delta encoding, and network protocols for real-time systems
- Experience with determinism, replay systems, simulation consistency, multithreading, job systems, lock-free programming, or Unity DOTS
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.
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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.
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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.
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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
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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