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Millennium Space Systems

Mission Operations Engineer (Entry-Level) - Millennium Space Systems

Chantilly, VA, United States

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Job details

Apply by: Nov 13, 2026
Posting language: English
Posted: Nov 4, 2026

Original job description

Mission Operations Engineer (Entry-Level) - Millennium Space Systems

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.

Job Summary:

As a Mission Operations Engineer, you will be the lead technical authority for Millennium’s on-orbit spacecraft. Your work will encompass the entire spacecraft mission life cycle, from the proposal phase to spacecraft and mission design, through space vehicle integration and test, and culminating with launch and on-orbit operations. You will be responsible for all facets of the mission design, including definition of operational concepts, development of on-orbit procedures, and innovation of advanced methods of spacecraft operation unique to each space mission. Mission Operations requires composure in high-pressure situations, in-depth knowledge of both the space vehicles and ground segment, and an ability to respond to anomalous scenarios in real-time. You will be directly responsible for Millennium’s critical on-orbit assets.

This position’s internal job code is Systems Engineer. Our team is currently hiring for a Level 1-2.

Position Responsibilities:

Support a team of spacecraft and subsystem engineers during launch and early orbit activities to commission the space vehicle(s) for service
Perform duties of lead technical authority during mission operations for both the space and ground segments
Support every aspect of the mission lifecycle, from proposal/mission modeling, design, integration and test, space vehicle shipment, launch and on-orbit operations, to decommissioning
Assist in the ground and mission operations requirements, and flow mission requirements back to the space vehicle team including:
Mission concept of operation and design reference missions
Future vehicle designs by cataloguing lessons learned from on-orbit exercises
Support the ground segment design, including command and control, mission planning, mission data processing, and the associated infrastructure to support all activities
Implement and test space vehicle fault and autonomy, including fault detection and response, autonomous space vehicle behavior, and on-board command and control
Implement methods of operational automation, to reduce day-to-day operator responsibilities
Assist in the creation and execution of space vehicle simulator tests to validate mission/fault/autonomy design
Assist in the creation and execution of in-factory flight vehicle tests to validate mission design compatibility with flight hardware
Conduct critical ground segment testing, including radio-frequency compatibility testing, remote ground facility interface testing, and acceptance testing of critical ground assets/locations
Support anomaly response team when off-nominal vehicle conditions arise
Contribute to customer briefings/debriefings for orbital events
Assist in the mission “sequence of events” for bus commissioning, payload checkout/calibration, and mission operations
Contribute to Mission Rehearsal events to train the mission team and to validate the mission design

Basic Qualifications (Required Skills/Experience):

Bachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement
Experience with real-time satellite command and control operations
Demonstrated knowledge of satellite subsystems, ground systems, space missions, and CONOPS design
Willingness to support 24/7 operations as required and occasional off-nominal working hours during critical 24/7 mission operations activities
This position requires the ability to obtain a US Security Clearance for which the US Government requires US Citizenship. A final U.S. TS/SCI clearance Post Start is required

Preferred Qualifications (Desired Skills/Experience):

Level 2: Two (2) or more years' related work experience or an equivalent combination of technical education and experience
M .S. in STEM related field
Extended knowledge of satellite systems engineering, including all satellite subsystems: Guidance, Navigation, and Control; Electrical Power; Thermal Control; Telemetry, Tracking, and Command; Propulsion; etc.
Experience with Spacecraft Command & Control software systems
Experience in leading multidisciplinary technical teams, especially to resolve anomalous scenarios
Familiarity with software and scripting tools such as MATLAB, Python, C/C++, Java, etc.

Conflict of Interest:

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.

Total Rewards:

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:

Level 1: $66,000 - 117,000 Level 2: $82,000 - 145,000

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.

Category = Engineering

Language Requirements:

Not Applicable

Education:

Bachelor's Degree or Equivalent

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 requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.

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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Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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