Flight Software Engineering Intern (Simulation/Hardware-In-The-Loop) - Spring & Summer 2027

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.

About the Team

You'll join a small, fast-moving team building the avionics and flight software for a new flight vehicle program from clean sheet. Everything is actively being built, integrated, and tested on real hardware supporting real tests.

This role will focus on developing simulation and hardware-in-the-loop (HITL) infrastructure, combining software development, flight simulation, and hands-on hardware integration.

Small team, big ownership, and we move at speeds the rest of the industry doesn't.

Spring-Summer: Around 28 weeks (January - August)

The hourly rate listed for this internship is intended as a general guideline. Final compensation will be determined based on degree level.

Responsibilities

Support development of a 6-DOF flight simulation including vehicle dynamics, sensor/actuator models, and engine/plant models to verify flight software in closed loop.; Support hardware-in-the-loop (HITL) testing, including integrating flight computers, avionics, sensors, actuators, and cable harnesses.; Write simulation and test software primarily in C++, with Python and MATLAB used for modeling and tooling.; Troubleshoot and integrate hardware using schematics, pinouts, connectors, and common bench tools.; Build tooling that makes simulation and HITL testing fast, repeatable, and data-rich through logging, playback, and automation.; Independently own simulation and integration tasks from initial setup through testing and troubleshooting .

Requirements

Currently pursuing a degree in Electrical Engineering, Computer Engineering, Computer Science, Software Engineering, Aerospace Engineering, or a related field.; Working proficiency in C++.; Strong understanding of physics and dynamics fundamentals, including rigid-body dynamics, classical mechanics, reference frames, and equations of motion.; Comfortable working hands-on with hardware, including reading schematics and pinouts, building or terminating cables, and troubleshooting hardware.; Comfortable using common bench tools such as a multimeter, oscilloscope, and power supply.; Comfortable working in a Linux command-line environment.; Demonstrated ability to work effectively on multidisciplinary technical teams.; GPA of 3.0 or above.

Nice to have

Working knowledge of MATLAB and/or Python for simulation modeling, analysis, and tooling.; Experience with 6-DOF simulation, flight or vehicle dynamics modeling, or software-in-the-loop (SITL).; Hardware-in-the-loop (HITL), real-time, or embedded systems experience.; GNC coursework or projects involving controls, state estimation, navigation, or flight dynamics.; Soldering, connectorization, or wire-harness fabrication experience.; Hands-on experience with robotics, UAVs/drones, rocketry, FSAE, CubeSat, or similar technical teams.; Previous simulation, GNC, avionics, or flight software internship experience.; Currently pursuing a graduate degree (MS or PhD) in Electrical Engineering, Computer Engineering, Computer Science, Software Engineering, Aerospace Engineering, or a related technical field.

Benefits

Time Off: Interns are eligible for 5 days of sick leave and unpaid time off.; Office Perks: Weekly paid office lunches and fully stocked breakrooms.