Senior Software Simulation Engineer

About The Role

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.

Responsibilities

• Develop and maintain real-time simulation environments for flight control, avionics, and aircraft systems
• Build and support SIL and HIL test environments for flight software verification
• Use MATLAB/Simulink and Model-Based Design workflows to create models and generate real-time code
• Integrate aircraft dynamics, controls, sensors, actuators, and avionics models into simulation environments
• Connect models with real-time targets, embedded software, and hardware interfaces
• Improve simulation performance, timing, fidelity, and reliability
• Create automated test scripts and tools to support repeatable validation
• Work closely with GNC, flight software, avionics, systems, and test teams to debug and validate system behavior
• Support documentation, requirements traceability, and verification activities for flight-critical systems

Requirements

• Bachelor’s degree in Aerospace Engineering, Electrical Engineering, Computer Engineering, Computer Science, Mechanical Engineering, or related field
• 5+ years of experience in simulation, controls, embedded software, or real-time test environments
• Hands-on experience with MATLAB, Simulink, and Model-Based Design
• Understanding of aircraft dynamics, control systems, avionics, or embedded aerospace systems
• Experience with code generation tools such as Simulink Coder or Embedded Coder
• Experience with SIL, HIL, or real-time simulation environments
• Proficiency in C/C++, Python, or similar programming languages
• Strong debugging skills across software, models, and hardware interfaces
• Able to work across teams in a fast-paced engineering environment

Preferred Skills and Experience

• Experience with real-time platforms such as Speedgoat, dSPACE, NI VeriStand, or OPAL-RT
• Familiarity with interfaces such as CAN, Ethernet, ARINC 429, MIL-STD-1553, RS-422, or serial
• Experience with automated testing, CI/CD, Git, or software configuration management
• Familiarity with safety-critical aerospace standards such as DO-178C, DO-331, or DO-254
• Experience integrating simulation environments with flight software or test hardware
• Background in aircraft, UAVs, spacecraft, defense systems, or other complex aerospace platforms
• Strong ownership mindset and ability to build practical tools that help teams test and iterate quickly