Millennium Space Systems Summer 2026 Internship Program – Business Office

Millennium Space Systems Summer 2026 Internship Program – Business Office

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 intern will support the Business Office in accounts payable/account receivable, invoicing, finance, Company Travel policy, and expense reports.

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

• Process invoices to ensure timely payments to vendors and suppliers

• Investigate and resolve invoice and purchase order discrepancies

• Maintain accounts payable records with high accuracy

• Assist with generating monthly status and closing report

• File accounting documents and records

• Review and process employee expense reports and reimbursement

• Work with Cost Policy on the administration of Company Travel, Travel & Expense, and Corporate Credit Card Policies

• Answer employee work travel questions

• Assist in corporate credit card reconciliation

• Perform other accounting, financial, or administrative tasks as may be required from time to time such scanning, receiving the mail, etc.

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):

• Major in one of the following fields: Accounting, Finance, Economics, Business Administration, Business Management, or Business Analytics

• Junior or Senior (preferred)

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