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Principal Programmer at Underground Administration LLC. Remote Location: Remote, USA. Principal Programmer – Simulation Development. Salary: $120K–$150K plus bene’s. Location: Remote (excludes NY & CA). Our client is seeking an experienced Principal Programmer to lead their Simulation . Development team. This role is ideal for a Unity expert who can architect core systems, mentor developers, and drive technical innovation across multiple products.. Responsibilities. ● Architect and implement complex systems and tools in Unity. ● Lead technical initiatives, evaluate and integrate new tech. ● Mentor junior programmers and establish best practices. ● Collaborate with design, art, and production teams. ● Optimize performance across platforms. ● Contribute to technical documentation and code reviews. Requirements. ● 8+ years programming experience (games/simulation or related). ● Expert in Unity3D (C#) with deep architectural knowledge. ● Proven experience with Unity ECS. ● Advanced Git workflows (branching/merging). ● Strong performance profiling & optimization skills. ● Solid grasp of design patterns and clean architecture. ● Excellent problem-solving and communication skills. Bonus Skills. ● Other engines/languages. ● Shader development (HLSL/GLSL, Shader Graph). ● Networking/multiplayer implementation. ● Agile methodology (Scrum/Kanban). ● Portfolio of shipped titles. Benefits. ● Remote role (no NY or CA). ● $120K–$150K salary + full benefits (401k, health, PTO, holidays). ● Collaborative and growth-focused environment. ● Background check required