Senior Core Engineer

🕒 September 16

🏄 California, Washington – Remote

🏄 California – Remote ☕ Washington – Remote

💵 $135.8k - $258.6k / year

⏰ Full Time

🟠 Senior

👷🏻‍♀️ Engineer

🦅 H1B Visa Sponsor

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Unity

WebsiteLinkedInAll Job Openings

5001 - 10000 employees

Founded 2005

🏭 Manufacturing

💼 Consulting

📣 Marketing

Manufacturing • Consulting • Marketing

Unity is a leading platform providing tools and services for creators to build games, apps, and immersive experiences. With high-quality graphics, multi-platform support, and AI enhancements, Unity empowers developers in video gaming and other industries like manufacturing. Unity offers services such as Unity Engine, Unity Cloud, and Unity Grow, which include real-time 3D creation, user acquisition, and game monetization. The company also provides extensive resources, community support, and professional training for creators at all levels. Through its success plans and developer resources, Unity aids in solving complex problems and bringing ideas to life for gaming and enterprise professionals.

📋 Description

• Own and evolve critical subsystems across the engine stack, from low-level C++ to high-level C# APIs across editor, build, and runtime code • Design and implement high-performance, extensible APIs for embedded, cross-process, and networked configurations • Develop schemes to manage execution timing and resource contention within or between processes and over the network with minimal overhead • Orchestrate loading, change tracking, serializing, and synchronizing components and assets in bandwidth- and latency-constrained environments • Build fundamental infrastructure for interconnected game and 3D ecosystems • Enable Unity to run as a guest within other processes, engines, and distributed systems • Design systems that allow Unity to load, run, and synchronize assets when Unity does not own the main loop • Create extensible architecture and optimize performance at the assembly level

🎯 Requirements

• Experience building or fundamentally extending game engine cores, middleware, or foundational systems • Ability to design modular, testable systems and implement and debug them end-to-end • Strong C++ and C# skills • Practical understanding of CPU caches, branch behavior, memory layout, and profiling • Hands-on experience across multiple engine domains, such as physics, animation, input, and assets • Familiarity with compression, streaming, replication, authority models, RPCs, state diffing, delta encoding, or real-time network protocols • Experience with determinism, replay systems, and simulation consistency • Deep knowledge of multithreading, job systems, lock-free techniques, and/or Unity DOTS • Familiarity with MCP-style tool interfaces, training data generation, machine learning, or agentic workflows • Sufficient knowledge of English for professional verbal and written exchanges

🏖️ Benefits

• Equity awards • Participation in company incentive plans, such as annual discretionary bonuses or sales commissions • Comprehensive health, life, and disability insurance • Commute subsidy • Employee stock ownership • Competitive retirement/pension plans • Generous vacation and personal days • New-parent 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