Test Engineering Intern (AIT) Summer 2026

About the role Summer internships will range between the months of May and September depending on university schedules. Internship is full-time and on-site in Mountain View or San Jose, California. The Assembly, Integration and Test (AIT) team at Muon is responsible for validation of spacecraft hardware through unit acceptance testing as well as spacecraft level integration testing. As a Test Engineering Intern, you will support the design, setup, and execution of tests for spacecraft subsystems. You will collaborate with engineers and technicians to develop test procedures, analyze data, and help ensure our satellites operate reliably in the extreme conditions of space. Muon is a small and fast growing startup which offers interns the experience to get direct mentorship and have real impact on our programs. As an intern, you'll collaborate with a dynamic team in a startup environment and have the chance to learn from some of the most accomplished and experienced aerospace professionals in the industry. We're committed to offering an experience where your decisions and contributions play a pivotal role in driving Muon's success. Responsibilities Assist in developing and updating test processes for satellite-level and unit-level testing (thermal vacuum, vibration, EMI, functional testing, etc.). Update existing test stations to improve usability, streamline workflows, and increase testing efficiency. Support development of basic automation of lab test equipment used for hardware testing Execute test plans under engineer supervision, including functional checkout, environmental stress testing, and troubleshooting. Collect and process test data, perform preliminary analysis, and generate summary reports. Support the integration of satellite hardware and ground support equipment in cleanroom and lab environments. Qualifications Currently pursuing a Bachelor’s or Master's degree in Aerospace, Systems, Mechanical, Electrical Engineering, Computer Science, or a related technical field. Strong understanding of engineering fundamentals across multiple disciplines (e.g., mechanical, electrical, software). Demonstrated proficiency in a programming or scripting language for hardware interfacing and data analysis (e.g., Python, MATLAB/Simulink, Julia, C++). Excellent problem-solving skills with the ability to approach complex, multi-disciplinary challenges from a first-principles perspective. Strong communication and interpersonal skills, with an ability to work effectively in a fast-paced, collaborative team environment. Nice-to-have Skills Previous internship or co-op experience Previous experience on technical project teams (i.e. Rocket club, CubeSat, Formula SAE, Solar Car) Knowledge of a specific satellite subsystem or domain, such as GNC, RF communications, or power systems. Experience with hardware-in-the-loop (HIL/HITL) testing or system integration. Salary The hourly wage for this role is $50. About Muon Space Founded in 2021, Muon Space is an end-to-end Space Systems Provider that designs, builds, and operates LEO satellite constellations delivering mission-critical data. Our revolutionary, integrated technology stack enables customers to optimize every dimension of their missions for faster time-to-orbit and superior constellation remote sensing performance. Our state-of-the-art facility in the heart of Silicon Valley is optimized for manufacturing spacecraft and rapid, flexible payload integration at scale. From climate monitoring to national security, Muon Space is dedicated to delivering Earth Intelligence for a safer and more resilient world. Taking Care of Our Team At Muon salary is only part of our total compensation package. In addition to salary, full-time employees receive equity compensation as well as benefits including medical, dental, and vision insurance, a 401k retirement plan, short long term disability and life insurance. We also offer three weeks paid vacation for new employees, along ... (truncated, view full listing at source)