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Mission Operations Engineer; Mid Level - Millennium Space Syste Security Clearance

Job in El Segundo, Los Angeles County, California, 90245, USA
Listing for: Boeing
Full Time position
Listed on 2026-02-23
Job specializations:
  • Engineering
    Aerospace / Aviation / Avionics, Systems Engineer, Electrical Engineering, Mechanical Engineer
Job Description & How to Apply Below
Position: Mission Operations Engineer (Mid Level) - Millennium Space Syste with Security Clearance
Job Description At Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. 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 levels 3-4. Responsibilities
* Lead 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

* 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 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

* 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

* Forms and leads 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 to validate the mission design This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options. This position requires the ability to obtain a US Security Clearance for which the US Government requires US Citizenship. A Final U.S. secret clearance Prestart is required OR An interim and/or final U.S. secret clearance Post Start is required

Minimum Qualifications
* B.S. in Aerospace, Electrical, Software, Computer, Mechanical Engineering, or related field

* Experience with real-time satellite command and control

* Working knowledge of satellite subsystems, ground systems, space missions, and CONOPS design

* Experience delivering operational products to customer environments

* Willingness to support occasional off-nominal working hours during critical 24/7 mission operations activities

* Experience in leading multidisciplinary technical teams, especially to resolve anomalous scenarios

* Active TS clearance and SCI eligibility

Preferred Qualifications
* M.S. in Aerospace, Electrical, Software, Computer, Mechanical Engineering, or related field

* Deep 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…
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