Mission Operations Engineer; Mid Level - Millennium Space Systems

About the Company

Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small‑satellite company focusing on national security space. Our missions directly impact global security, such as missile warning and Earth observation.

As a Mission Operations Engineer, you will be the lead technical authority for Millennium’s on‑orbit spacecraft. You will oversee the mission life cycle from proposal to on‑orbit operations and be responsible for all facets of mission design, operational concepts, on‑orbit procedures, and advanced methods of spacecraft operation. The role requires composure in high‑pressure situations, in‑depth knowledge of space vehicles and ground segment, and the ability to respond to anomalous scenarios in real time.

• Lead a team of spacecraft and subsystem engineers during launch and early orbit activities to commission the space vehicle(s) for service.
• Serve as lead technical authority during mission operations for both the space and ground segments.
• Support every aspect of the mission lifecycle: proposal/mission modeling, design, integration and test, space vehicle shipment, launch, on‑orbit operations, and decommissioning.
• Define ground and mission operations requirements and flow mission requirements back to the space vehicle team.
• Define mission concept of operation and design reference missions.
• Improve 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 associated infrastructure.
• Implement and test space vehicle fault and autonomy, including fault detection and response, autonomous vehicle behavior, and on‑board command and control.
• Develop and implement methods of operational automation to reduce day‑to‑day operator responsibilities.
• Create and execute space vehicle simulator tests to validate mission/fault/autonomy design.
• Create and execute 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.
• Form and lead anomaly response team when off‑nominal vehicle conditions arise.
• Contribute to customer briefings/debriefings for orbital events.
• Design and validate 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 validate the mission design.

• Bachelor’s degree.
• Minimum of 3 years of experience in mission operations or a related field.
• Experience with real‑time satellite command and control.
• Willingness to support occasional off‑nominal working hours during critical 24/7 mission operations activities.
• Willingness to apply for a TS clearance with SCI eligibility.

• Minimum of 5 years of experience in mission operations or a related field.
• Experience leading multidisciplinary technical teams, especially to resolve anomalous scenarios.
• Deep knowledge of satellite systems engineering, including all satellite subsystems.
• Experience with spacecraft command & control software systems.
• Familiarity with software and scripting tools such as MATLAB, Python, C/C++, Java, etc.
• Active TS clearance and SCI eligibility.

This position is 100% onsite at one of the listed Boeing locations and requires the employee to be on a 1st shift schedule.

Must obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. A final U.S. secret clearance pre‑start is required or an interim and/or final U.S. secret clearance post‑start is required.

• Pay range:
  Level 3: $99,000 – $177,000;
  Level 4: $121,000 – $215,000.
• Competitive base pay and variable compensation opportunities.
• Eligible employees may enroll in benefit programs, including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and paid/unpaid time off.

This position must meet U.S. export control compliance requirements. A “U.S. Person” is required, defined by 22 C.F.R. 120.62 (U.S. citizen, U.S. national, lawful permanent resident, refugee, or asylee).

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.

Applications for this position will be accepted until Jul. 20, 2026.