Senior Core Engineer

🕒 July 2

🏄 California, Washington – Remote

🏄 California – Remote ☕ Washington – Remote

💵 $115.4k - $219.7k / year

⏰ Full Time

🟠 Senior

👷🏻‍♀️ Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 41%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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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 infrastructure for 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 • Design clean, extensible architecture and optimize low-level performance

🎯 Requirements

• Experience building or fundamentally extending game engine cores, middleware, or foundational systems (e.g., serialization, build pipelines, memory subsystems) • 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 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 • Sufficient knowledge of English for professional verbal and written exchanges • Must be eligible to work without work visa or immigration sponsorship

🏖️ Benefits

• 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 • Equity awards • Participation in company incentive plans, such as annual discretionary bonuses or sales commissions