Senior C++ Physics Engine Architect for Simulation

Code Metal; Boston (MA); On-site; USD 150,000 - 210,000; Full time

Job summary

Code Metal seeks a Physics Programmer to build a high-performance C++ runtime for a next‑generation wargaming platform. You will own core engine systems, drive ECS design, and optimize for real-time performance in a challenging defense-focused context.

Ideal candidates ship real-time C++ code, manage memory and concurrency carefully, and mentor others while contributing hands-on. This role emphasizes architectural leadership and low-latency, deterministic execution.

Qualifications

• Extensive professional C++ development experience in performance-critical production software.
• Experience shipping a commercial game or engine, or similar real-time product.
• Ownership of foundational engine systems beyond gameplay features.
• Experience with ECS, job systems, or runtime scheduling.
• Strong knowledge of data-oriented design and memory/layout optimization.
• Ability to optimize for CPU, memory, latency, and frame/tick budgets.
• Active security clearance or eligibility (U.S.).

Responsibilities

• Architect and implement the core C++ runtime behind a large-scale wargaming platform.
• Own engine structure, performance, and long-term health of a substantial codebase.
• Design and evolve an ECS architecture for many heterogeneous entities.
• Build data-oriented storage, entity lifecycle, system queries, and scheduling.
• Define engine interfaces for physics, AI, sensors, weapons, and environments.
• Create stable extension points to allow model developers to add capabilities safely.
• Design simulation loops with deterministic replay and time stepping.
• Develop multithreaded execution systems for parallel workloads.
• Optimize memory layout, serialization, and data movement.
• Profile and improve CPU, memory, latency, and throughput against budgets.
• Build spatial indexing, broad-phase queries, and visibility infrastructure.
• Integrate external physics and math models into a cohesive runtime.
• Implement checkpointing, snapshotting, and reproducible replay systems.
• Lead engine design reviews and mentor other programmers.

Skills

C++

Game engine

ECS

Profiling

Multithreading

Memory layout

Performance

Tools

Profiling tools

Job description

Code Metal seeks a Physics Programmer to build a high-performance C++ runtime for a next‑generation wargaming platform. You will own core engine systems, drive ECS design, and optimize for real-time performance in a challenging defense-focused context.

Ideal candidates ship real-time C++ code, manage memory and concurrency carefully, and mentor others while contributing hands-on. This role emphasizes architectural leadership and low-latency, deterministic execution.