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We are seeking a highly motivated and experienced Senior Software Simulation Engineer to join Hermeus, a hypersonic aircraft startup company. As a Senior Software Simulation Engineer, you will be responsible for developing and deploying real-time simulation environments that support the design, verification, and validation of aerospace flight control and avionics systems. Leveraging Model-Based Design (MBD) principles, you will use MATLAB/Simulink and automated code generation tools to translate dynamic system models into executable real-time code for Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL) testing. This role bridges the gap between control system design and embedded software implementation, ensuring accurate representation of aircraft dynamics and system behavior under simulated flight conditions. You will collaborate with multidisciplinary teams to integrate models with real-time targets, optimize simulation performance, and contribute to the certification and reliability of flight-critical systems.
Job Responsibility:
Configure simulation models for real-time execution and deterministic performance on aerospace-grade SIL/HIL platforms
Conduct model validation and correlation against analytical models, flight data, or hardware test results
Generate optimized C/C++ code from Simulink models for real-time targets
Integrate generated code into real-time simulation environments
Implement real-time execution tuning (fixed-step solvers, scheduling, data exchange) to meet aerospace system timing constraints
Design and implement HIL simulation testbeds that interface with flight control computers, sensors, actuators, and communication buses
Configure I/O mapping and signal conditioning for aerospace interfaces such as ARINC 429, MIL-STD-1553, CAN bus, Ethernet, etc
Develop automation scripts for test execution, parameter sweeps, data acquisition, and result analysis
Support SIL, PIL, and HIL verification campaigns for flight software and control system algorithms
Participate in failure injections, stress testing, and fault-tolerant system validation
Analyze computational load and latency to optimize real-time model execution
Enhance simulation infrastructure, build scripts, and toolchains for automated model builds and regression testing
Contribute to continuous integration (CI/CD) pipelines for model-based development and HIL testing
Work closely with systems engineers, controls engineers, and flight software teams to ensure accurate system representation
Produce comprehensive documentation of models, interfaces, simulation configurations, and test results
Requirements:
Bachelor’s or Master’s degree in Aerospace Engineering, Electrical Engineering, Computer Engineering, or a related technical discipline
Expertise in MATLAB, Simulink, Simulink Coder, and/or Embedded Coder
Experience with real-time simulation platforms (dSPACE, Speedgoat, OPAL-RT, NI VeriStand, or equivalent)
Understanding of flight dynamics, control systems, and aircraft system modeling
Familiarity with communication protocols (e.g. ARINC 429, MIL-STD-1553, CAN bus, Ethernet)
Competence in C/C++, Python, or automation scripting for simulation and test automation
Nice to have:
Knowledge of DO-178C/DO-331 processes for model-based software development and verification
Experience with flight control system development or verification
Knowledge of sensor/actuator hardware, avionics integration, and real-time operating systems (RTOS)
Familiarity with model-in-the-loop (MIL), software-in-the-loop (SIL), and processor-in-the-loop (PIL) test environments
Exposure to simulation and test automation frameworks in an aerospace certification context