Mission Operations Engineer (Mid Level) - Millennium Space Systems
First seen by Alion on Oct 6, 2026.
Company:
Millennium Space SystemsMillennium 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
- Minimum of 3 years of experience in Mission Operations or similar
- 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
Preferred Qualifications
- M.S. in Aerospace, Electrical, Software, Computer, Mechanical Engineering, or related field
- Minimum of 5 years of experience in Mission Operations or similar
- Experience in 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
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.
Shift:
- This role will be on 1st shift
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 3: $99,000 - 177,000
Level 4: $121,000 - $215,000
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 ApplicableEducation:
Bachelor's Degree or EquivalentRelocation:
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 awardShift:
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