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# Senior Core Engineer

- **Company:** Unity Technologies
- **Location:** Olympia, WA, United States
- **Experience:** Expert
- **Salary:** $135,800.0 - $258,600.0
- **Contract:** Permanent contract
- **Skills:** Training Data, Computer Animation, C Sharp (Programming Language), C++ (Programming Language), Encodings, Serialization, Software Debugging, Middleware, Game Engine, Machine Learning, Network Protocols, Data Streaming, Delivery Pipeline
- **Published:** September 16, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=924d38fe2d77eda5

## About the Role

* Core Engine Expertise: Experience building or fundamentally extending game engine cores, middleware, or foundational systems (e.g., serialization, build pipelines, memory subsystems).
 * Architectural Vision + Practical Implementation: Design modular, testable systems, then implement and debug them yourself end-to-end
 * High-Performance Coding: Strong C++ and C# skills, with practical understanding of CPU caches, branch behavior, memory layout, and profiling.
 * Engine-Wide Breadth: Hands-on experience across multiple engine domains (e.g., physics, animation, input, assets) and how they interact.

You might also have:

 * Familiarity with compression, streaming, replication, authority models, RPCs, state diffing, delta encoding, or network protocols for real-time interactive systems.
 * Experience with determinism, replay systems and simulation consistency.
 * Deep knowledge of multithreading, job systems, lock-free techniques, and/or Unity DOTS.
 * Experience with MCP-style tool interfaces, training data generation, machine learning, or agentic workflows., 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.



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