# Flight Software Engineering Intern (Simulation/Hardware-In-The-Loop) - Spring & Summer 2027 **Company:** [Hermeus](https://zerogtalent.com/defense-companies/hermeus) **Location:** Los Angeles, CA **Work mode:** On-site **Seniority:** Intern **Employment type:** Internship **Salary:** USD 25–33/hr **Category:** Engineering **Department:** Internships **Listed:** 2026-09-29 [View and apply on Zero G Talent](https://zerogtalent.com/defense-jobs/hermeus/flight-software-engineering-intern-simulation-hardware-in-the-loop-spring-summer-2027-78008094-ca81-4a0c-9a18-93b30f932acd) ## What you'll do - Develop 6-DOF flight simulation (vehicle dynamics, sensor/actuator models, engine/plant models) - Support HITL testing (integrate flight computers, avionics, sensors, actuators, cable harnesses) - Write simulation/test software in C++, Python, MATLAB - Troubleshoot hardware using schematics and bench tools - Build tooling for simulation/HITL testing (logging, playback, automation) ## What you need - Pursuing degree in EE, CE, CS, SE, AE or related - Working proficiency in C++ - Strong physics/dynamics fundamentals (rigid-body, classical mechanics, reference frames, equations of motion) - Hands-on hardware experience (schematics, pinouts, cables, bench tools) - Linux command-line proficiency, GPA 3.0+ ## Job description 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) ### 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.  ### Required Qualifications: - 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. ### Preferred Skills and Experience: - 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. #LI-Onsite The hourly rate listed for this internship is intended as a general guideline. Final compensation will be determined based on degree level. ### **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. **U.S. EXPORT CONTROL COMPLIANCE STATUS**  The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by [22 C.F.R. § 120.62](https://www.ecfr.gov/current/title-22/section-120.62) or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.  **EQUAL OPPORTUNITY** Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status. #LI-JC3 ## Other open roles at Hermeus - [Senior IT Support Specialist](https://zerogtalent.com/defense-jobs/hermeus/senior-it-support-specialist-5e34852c-23f1-4413-a5de-70321c45ab90) — Los Angeles, CA - [Art Director](https://zerogtalent.com/defense-jobs/hermeus/art-director-aa4ccb1e-6b38-44bb-ac7b-8e2829ac0dfa) — Los Angeles, CA - [Workplace Operations Specialist](https://zerogtalent.com/defense-jobs/hermeus/workplace-operations-specialist-1ba7b5de-b140-4b49-ba7a-7e7ed713eba2) — Washington, DC - [Mechanical Engineer](https://zerogtalent.com/defense-jobs/hermeus/mechanical-engineer-7e8c4dce-00a7-4492-a0e1-a950cf677e28) — Los Angeles, CA - [Build Engineer](https://zerogtalent.com/defense-jobs/hermeus/build-engineer-9c529fa7-d59f-4ad3-9f38-bf9e35334a55) — Los Angeles, CA --- *Source: [Zero G Talent](https://zerogtalent.com), the job board for space, defense, AI, robotics and frontier-tech companies.*