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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer, 3D Systems & AI - **Company:** Unity Technologies - **Location:** Sacramento, CA, United States - **Experience:** Expert - **Salary:** $130,400.0 - $195,600.0 - **Contract:** Permanent contract - **Skills:** Training Data, Computer Animation, Application Programming Interfaces (APIs), Artificial Intelligence, Computing Platforms, C Sharp (Programming Language), C++ (Programming Language), Profiling, Encodings, Computer Programming, Serialization, Software Debugging, Distributed Systems, Middleware, Game Engine, Interaction Design, Network Protocols, DataOps, Search Technologies, Data Streaming, Reinforcement Learning, Multithreading, Real Time Systems, Delivery Pipeline, Large Language Models, Caching, Build Tools - **Published:** July 3, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=84b1e9878b57ae7f ## About the Role * 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., * 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. ## Description The team behind Unity's visionOS support, Play-to-Device, and Record & Playback is growing as we prepare for something even more ambitious: adapting PolySpatial to stream Unity content into other game engines and 3D environments - in-process, cross-process, and over the network. We're building systems that allow real-time 3D experiences to run, render, and interact in places they weren't originally authored for, including other major game engines and emerging software platforms. We're also developing new ways to encode and exchange interactive 3D content: protocols designed not only for rendering and interchange, but also for understanding, transformation, generation, and orchestration by future AI-driven tools and systems. You'll help invent the protocols, media formats, and runtime systems that bring interactive 3D content to novel platforms. Working at the intersection of core engine technology, graphics, networking, distributed systems, media, and AI, you'll help define the interchange layer for the next generation of interconnected games and intelligent 3D ecosystems. 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., 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. This posting is intended to fill an existing vacancy, and we are committed to providing applicants with updates throughout the hiring process in accordance with applicable law. Headhunters and recruitment agencies may not submit resumes/CVs through this website 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 and Applicant Privacy Policies. Should you have any concerns about your privacy, please contact us at DPO@unity.com. ## Related Videos - [A Brief History of Data Storage](https://www.wearedevelopers.com/videos/974-a-brief-history-of-data-storage) - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [The Impact of AI on Game Development and the Industry](https://www.wearedevelopers.com/videos/100297-the-impact-of-ai-on-game-development-and-the-industry) - [JSON and Beyond](https://www.wearedevelopers.com/videos/968-json-and-beyond) - [Event based cache invalidation in GraphQL](https://www.wearedevelopers.com/videos/433-event-based-cache-invalidation-in-graphql) - [Coding an Immersive Copilot using Unity / .NET and Azure OpenAI!](https://www.wearedevelopers.com/videos/1204-coding-an-immersive-copilot-using-unity-net-and-azure-openai) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 129 - Now that's what I call private data!](https://www.wearedevelopers.com/magazine/468-dev-digest-129-now-that-s-what-i-call-private-data)