Thermal Engineering Internship; or Summer

Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge.

For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles.

Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more.

We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet.

We are seeking talented engineers to work closely with the broader engineering team for an exciting internship opportunity. This person is passionate about engineering, ready to take ownership over complex challenges, and a strong desire to learn about all things satellites.

During the 12-week internship program at Apex, you’ll gain hands‑on experience and professional growth opportunities. You’ll be assigned a project to give you the opportunity to have real impact. Throughout the project you'll have a dedicated mentor to guide you, while participating in learning sessions to elevate your knowledge of aerospace. Plus, you'll connect with peers and industry professionals during our community events, making this a well‑rounded experience to launch your career!

Thermal Engineering: Interns will be an integral part of the team learning how thermal analysis is done on buses and payloads. They will get involved with hands‑on testing that creates relevant outputs to make analysis more accurate, and get real experience with assembly and inspections of the flight buses and payloads. Thermal interns will also get the chance to be involved in some of the most exciting parts of spacecraft production, TVAC functional testing and launch support!
Requirements:

• Graduating in the Fall of 2027 or in the Spring of 2028

• Currently pursuing a BS or MS degree in Mechanical Engineering or related field
  
  Note:
  
  Spring interns should be available to pause or adjust academic commitments (such as taking a semester off or enrolling part‑time) for the duration of the program

Apex believes in creating a work environment that you look forward to embracing every day. Our employees love working at Apex, and we want you to love it too. We're a fast-growing startup that has raised more than $500M in funding, and we invest heavily in our people from day one.

• Shared upside: Receive equity in Apex, letting you benefit from the work you create

• Best‑in‑class healthcare: 100% company‑paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost

• Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays

• Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%

• 8 weeks paid parental leave plus childcare reimbursement up to $350/day for work‑related travel

• Daily catered lunch and unlimited snacks to keep you fueled throughout the day

• Vibrant community: Monthly office socials, pickleball tournaments, run club, and gatherings for you and your family

• Your dream desk setup and all the tools you need to be your most productive self

• World‑class Playa Vista office with the benefit of in‑person collaboration with amazing coworkers and flexibility to integrate work and life

• Real impact opportunity: Wor…