Summer 2027 Flight Software Engineer Intern

Sierra Space•Louisville, CO

About The Position

The Flight Software Engineer Intern will work with Sierra Space development teams to design, build, and test software for spacecraft systems and mission tools. The intern will write and debug code, participate in code reviews, and support projects involving artificial intelligence, gaining hands-on experience with modern programming languages and the full software development lifecycle. The 12-week Summer Intern Academy runs from May 24, 2027, through August 13, 2027. It is for undergraduate students graduating between December 2027 and June 2028. Interns work on meaningful projects, receive dedicated mentorship, collaborate with industry experts, and take part in cross-functional workshops and leadership sessions. The program also provides opportunities to strengthen technical expertise through hands-on application and guidance, learn business processes, and develop insight into Sierra Space’s operations and culture. The role requires the ability to obtain and maintain a U.S. Security Clearance. Applicants must be U.S. citizens, lawful permanent residents, protected individuals as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State or U.S. Department of Commerce.

Requirements

  • Actively enrolled in an undergraduate degree program.
  • Expected graduation date between December 2027 and June 2028.
  • Passion for solving problems by leveraging data and technology.
  • Excellent written and verbal communication skills.
  • Ability to work in a highly collaborative team environment.
  • Strong organizational skills, attention to detail, and self-initiative.
  • Ability to obtain and maintain a U.S. Security Clearance.
  • Must be a U.S. citizen, lawful permanent resident, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations from the U.S. Department of State or U.S. Department of Commerce.

Nice To Haves

  • Participated in the 2026 Sierra Space Intern Academy.

Responsibilities

  • Design, build, and test software for spacecraft systems and mission tools.
  • Write and debug code in collaboration with development teams.
  • Participate in code reviews.
  • Support projects involving artificial intelligence.
  • Learn and apply modern programming languages and the software development lifecycle.
  • Participate in the Summer Intern Academy, including cross-functional workshops and leadership sessions.
  • Strengthen technical expertise through hands-on work and expert guidance.

Benefits

  • Medical, dental, and vision plans.
  • 401(k) with a 150% match up to 6%.
  • Life insurance.
  • Three weeks of paid time off.
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