Mission Integration Engineer Internship (Spring or Summer 2027)

The role

Mission Integration Engineer Interns support system-level mission planning and integration activities across spacecraft programs. You will work on mission architecture, analysis tasks, and technical documentation.

What you will do

• Supporting mission architecture definition across spacecraft, launch vehicle, and operations elements
• Assisting with mission analysis tasks such as orbital mechanics, deployment concepts, and trajectory trade studies
• Helping generate and maintain mission-specific technical budgets
• Supporting requirements analysis, verification, and validation activities
• Assisting in the development of technical documentation, interface definitions, and integration procedures
• Collaborating with mechanical, electrical, software, and operations teams
• Participating in internal design reviews, customer meetings, and technical discussions
• Learning how technical risks are identified, assessed, and mitigated

Required qualifications

• Graduating in Fall 2027 or Spring 2028
• Pursuing a BS or MS in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or a related field
• Strong interest in spacecraft systems, mission design, and space operations
• Strong organizational skills
• Attention to detail
• Ability to communicate technical concepts clearly
• Ability to work effectively in a team environment
• U.S. Person status required

Nice to have

• Coursework or project experience related to orbital mechanics, space systems, or systems engineering
• Familiarity with tools such as Python, MATLAB, STK, GMAT, or similar analysis tools

Benefits

• Shared upside: Receive equity in Apex
• 100% company-paid medical, dental, and vision for you and your dependents
• $100k life insurance at no cost
• Starting at 15 days vacation, growing to 20+ days annually
• 10 paid holidays
• 100% match on first 3% and 50% on next 2% 401(k) matching
• 8 weeks paid parental leave
• Childcare reimbursement up to $350/day for work-related travel
• Daily catered lunch and unlimited snacks
• Monthly office socials, pickleball tournaments, run club, and gatherings

Before you apply

• U.S. Person status required due to access to export-controlled data
• Must qualify as a U.S. Person (citizen, national, lawful permanent resident, refugee, or asylee) or be able to obtain required export authorizations

About the company

Apex manufactures satellite buses at scale using software, vertical integration, and hardware designed for manufacturing. The company is a fast-growing startup that has raised more than $500M in funding.