Senior Core Engineer

This is a fully remote position, open to applicants in California, +1 more state.

📋 Description

• Take ownership and enhance essential subsystems throughout the engine stack, ranging from low-level C++ to high-level C# APIs across the editor, build, and runtime code.

• Create and implement high-performance, extensible APIs for embedded configurations, cross-process interactions, and networked setups.

• Formulate strategies to oversee execution timing and resource contention within or between processes and across the network with minimal overhead.

• Coordinate the loading, change tracking, serialization, and synchronization of components and assets in environments constrained by bandwidth and latency.

• Develop systems enabling Unity to load, execute, and synchronize assets when it does not control the main loop.

• Establish fundamental infrastructure for interconnected gaming and 3D ecosystems.

⛳️ Requirements

• Proven experience in building or significantly enhancing game engine cores, middleware, or foundational systems.

• Capability to design modular, testable systems and implement and debug them comprehensively.

• Proficient in C++ and C# programming languages.

• Practical knowledge of CPU caches, branch behavior, memory layout, and profiling techniques.

• Hands-on experience across various engine domains, including physics, animation, input, and assets.

• Familiarity with compression methods, streaming, replication, authority models, RPCs, state diffing, delta encoding, or network protocols for real-time interactive systems.

• Experience with determinism, replay systems, and maintaining simulation consistency.

• Extensive 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.

• Adequate proficiency in English for professional verbal and written communication.

🏝️ Benefits

• Equity awards.

• Participation in company incentive programs, including annual discretionary bonuses or sales commissions.

• Comprehensive health, life, and disability insurance coverage.

• Commute subsidy.

• Employee stock ownership opportunities.

• Competitive retirement and pension plans.

• Generous vacation and personal days.

• New-parent leave and family-care programs.

• Office snacks.

• Mental health and wellbeing programs and support.

• Employee Resource Groups.

• Global Employee Assistance Program.

• Training and development initiatives.

• Volunteering and donation matching program.