code-metal - Senior / Principal Model and Simulation Engineer

Remote - USA *1mo ago

Remote Principal NA Robotics Logistics Principal Test Engineer C++Python Documentation

Requirements

• Five or more years of professional software-development experience building simulation, autonomy, robotics, game-engine, digital-twin, or similarly complex systems. • Strong production experience in modern C++, with proficiency in Python for tooling, orchestration, analysis, or automation. • Hands-on experience developing or extending a simulation framework—not only configuring simulation tools or analyzing their output. • Experience with event-driven, discrete-event, agent-based, constructive, or distributed simulation architectures. • Demonstrated ability to represent complex real-world entities, interactions, rules, and edge cases as clear software abstractions. • Experience building plugins, SDKs, reusable model interfaces, framework services, platform types, or similar extension mechanisms. • Strong understanding of software architecture, data structures, algorithms, APIs, testing, debugging, and performance engineering. • Experience making substantial changes within a large existing codebase while maintaining ongoing delivery. • Experience with model verification, validation, calibration, or regression testing. • Ability to turn ambiguous operational or technical requirements into executable engineering plans. • Strong written and verbal communication skills, including the ability to document model assumptions, limitations, interfaces, and intended use. • Bachelor’s degree or equivalent experience in computer science, engineering, applied mathematics, operations research, physics, or a related discipline. • Active Secret clearance or eligibility to obtain one. • STRONGLY PREFERRED: • Direct experience developing AFSIM plugins, framework extensions, event infrastructure, or custom platform types. • Experience supporting Air Force, Space Force, joint, or broader DoD acquisition and mission-analysis programs. • Experience developing models for sensors, weapons, electronic warfare, jamming, communications, logistics, or command and control. • Experience translating or modernizing a large legacy modeling or campaign-analysis system into C++. • Experience designing a simulation framework, event stack, plugin architecture, or campaign system from the ground up. • Familiarity with HLA, DIS, OneSAF, JSAF, NGTS, STK, or other constructive and distributed simulation environments. • Experience spanning both operational and constructive simulation. • Active TS/SCI clearance.

Responsibilities

• Design and implement mission- and campaign-level simulation capabilities in modern C++ and Python. • Build and extend event-driven, discrete-event, agent-based, and constructive simulation frameworks. • Own core framework functionality including event scheduling, simulation time, state transitions, platform abstractions, scenario execution, data collection, and deterministic replay. • Develop models for platforms, sensors, weapons, communications, electronic warfare, jamming, command and control, logistics, and environmental effects. • Extend AFSIM and comparable simulation environments through C++ plugins, framework services, SDK integrations, new platform types, and reusable model interfaces. • Translate operational concepts, system specifications, and subject-matter expertise into maintainable software models with explicit assumptions and testable behavior. • Modernize legacy campaign and mission-analysis tools and integrate them into a coherent simulation architecture. • Build scenario-generation, Monte Carlo, sensitivity-analysis, campaign-execution, and evaluation workflows. • Scale simulations across developer workstations, on-premises infrastructure, and cloud compute while preserving reproducibility and model provenance. • Connect constructive simulations with distributed, operational, hardware-in-the-loop, or human-in-the-loop environments where appropriate. • Establish verification and validation practices, reference scenarios, regression suites, and quantitative measures of model credibility. • Work directly with government, Air Force, and broader DoD stakeholders to understand acquisition questions and deliver usable capabilities quickly. • Collaborate with physics, backend, geospatial, AI, and product teams to integrate the simulation kernel into a larger interactive platform. • Lead design and code reviews, mentor teammates, and improve architecture, documentation, testing, and release practices.

Benefits

• Mission with impact: Build the models used to evaluate systems, explore operational concepts, and inform major force-design and acquisition decisions. • Multidisciplinary engineering: Work across simulation, physics, software architecture, AI, geospatial systems, and defense operations. • Velocity: Prototype quickly, iterate with users, and deliver meaningful capability in weeks rather than years. • Ownership: Senior engineers own important systems from initial design through deployment and customer use. • Pay depends on experience, but we strive to be at the upper end of the salary range • Health care plan with 100% premium coverage, including medical, dental, and vision • 401k with 5% matching • Paid Time Off (uncapped vacation, plus sick and public holidays) • Flexible hybrid or remote work arrangement • Relocation assistance for qualifying employees • Wage Transparency - The salary range for this role is not a guarantee of compensation or salary, as the final offer amount may vary based on factors including, but not limited to, individual proficiency, skills, experience, and location.