Millennium Space Systems Summer 2026 Internship Program -Thermal Engineering

Company:
Millennium Space Systems

Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focused on national security space. Our missions have direct impact to global security, like missile warning and Earth observation.

Our team is curious, bold and innovative. We take risks, innovate and explore new techniques and technologies. We influence change because we challenge the status quo. And when we watch our satellites launch, we know each one of us made it happen.

The thermal engineering intern at Millennium Space Systems will support thermal analysis and test efforts for our spacecraft and avionics. This will include using thermal analysis software to build, validate, and run thermal models, as well as oversee test planning, setup, execution, and report generation. The thermal engineering intern will support one or more of our active satellite programs, contributing to our company goal of delivering advanced satellite constellations to our customers.

Over the course of our 10-12 week internship experience you will have the opportunity to:

• Build, validate, analyze, and post-process thermal models in Thermal Desktop / SINDA
• Plan, setup, execute, and generate post-test reports for thermal vacuum (TVAC) testing of spacecraft components
• Support Thermal Vacuum testing of Spacecraft (SCTV)
• Assist program Thermal Responsible Engineering Authorities with documentation and model post-processing
• Attend team and program meetings, provide status on project(s) to appropriate stakeholders

This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options.

These positions must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Additionally, some positions may require the ability to obtain U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship.

Basic Qualifications (Required Skill/Experience):

• Ability to work full-time for 10-12 weeks during Summer 2026
• Basic understanding of thermodynamics, heat transfer (with focus on conduction and radiation)
• Pursuing a degree in an Engineering field (ex: Mechanical, Aerospace, Chemical, Energy, Materials, etc.)
• Proficiency in at least one CAD software (SolidWorks, AutoCAD, etc.), and MS Office Products (Excel, PowerPoint, etc.)
• Enrolled student attending a college or university with an expected graduation date on or after August 2026

Preferred Qualifications (Desired Skills/Experience):

• Strong academic performance (preferred GPA of 3.0 or above)
• Exceptional organizational and collaboration skills as demonstrated through leadership positions on teams and/or in student or civic organizations
• Strong technical experiences as demonstrated through technical projects, research or engineering internships
• Exceptional communication skills and interest and enthusiasm related to engineering, aerospace and a career with Boeing
• Junior or Senior class standing

Successful candidates for this job must satisfy the Company’s Conflict of Interest (COI) assessment process.

Drug Free Workplace:

Millennium Space Systems, a Boeing Company, is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Shift:

These positions are for 1st shift.

Safety Sensitive Statement:

Some of these positions are safety-sensitive positions and are subject to random drug and alcohol testing.

At Millennium Space Systems, a Boeing Company, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary pay range :$21.15 /hr - $30.77 / hr

Millennium is DDTC-registered, ITAR-compliant Company. This position is located at a facility that requires special access. Applicants MUST be U.S. citizens and eligible for a security clearance. Additionally, applicants must be willing to apply for and maintain a security clearance. We encourage all interested candidates to apply for any open position for which they feel they are qualified.

Language Requirements:
Not Applicable

Education:
Not Applicable

Relocation:
Relocation assistance is not a negotiable benefit for this position.

Export Control Requirement:
This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Safety Sensitive:
This is not a Safety Sensitive Position.

Security Clearance:
This position does not require a Security Clearance.

Visa Sponsorship:
Employer will not sponsor applicants for employment visa status.

Contingent Upon Award Program
This position is not contingent upon program award

Shift:
Shift 1 (United States of America)

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As a leading global aerospace company, Boeing develops, manufactures and services commercial airplanes, defense products and space systems for customers in more than 150 countries. Creating the world’s most innovative aerospace products and services requires a diverse and inclusive global team. We know that every teammate brings something uniquely valuable to Boeing, and that we can make the world better, together. Join us.