Mission Operations Engineer

El Segundo, CA
Full Time
Mission Operations Engineering
Entry Level

Company Overview
Millennium Space Systems, A Boeing Company delivers affordable, high-performance space systems for exacting customers. At Millennium, you will be part of a close-knit team working on exciting technological problems. We work in an open environment where ideas are shared across all disciplines, and there are ample opportunities for advancement based on excellence. Superstars are welcome.

At Millennium, we innovate and collaborate to make the world a better place. From the seabed to outer space, you can contribute to work that matters with a company where diversity, equity, and inclusion are core values. 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. 

Job Summary
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 level 1-2.


  • Support current program execution, from 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
    • Define mission concept of operation and design reference missions
  • Support design of the ground segment, including command and control, mission planning, mission data processing, and the associated infrastructure to support all activities
  • Support design of the space vehicle fault and autonomy systems, including fault detection and response, autonomous space vehicle behavior, and on-board command and control
  • Support the development and implementation 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
  • Support the design and validation of mission “sequence of events” for bus commissioning, payload checkout/calibration, and mission operations
    • Participate and help plan formal Mission Rehearsal events
  • Support launch and early orbit activities to commission the space vehicle(s) for service
  • Provide oversight of nominal on-orbit operations for part of Millennium’s fleet of on-orbit spacecraft
  • Support occasional off-nominal working hours during critical 24/7 mission operations activities

Minimum Qualifications

  • 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. Top Secret Clearance Post-Start is required. 
  • B.S. in Aerospace, Electrical, Software, Computer, Mechanical Engineering, or related field
  • 1 year experience in satellite operations, satellite system engineering, or equivalent
  • Working knowledge of satellite subsystems, ground systems, space missions

Preferred Qualifications

  • M.S. in Aerospace, Electrical, Software, Computer, Mechanical Engineering, or related field
  • 2 years experience in satellite operations, satellite system engineering, or equivalent
  • Experience with real-time satellite command and control
  • High level of organization, self-motivation, and an ability to manage many projects in parallel
  • Experience in collaborating with multidisciplinary technical teams, especially to resolve anomalous scenarios
  • Experience with external customer briefing/interfacing
  • 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
  • Knowledge of orbital dynamics, maneuver planning, and orbit determination techniques
  • Experience designing fault detection and response, as well as designing space vehicle autonomy
  • Familiarity with software and scripting tools such as MATLAB, Python, C/C++, Java, etc

Please note that the salary information shown below is a general guideline only of what is reasonably expected to be paid for the position. Salaries are based upon candidate experience and qualifications, as well as market and business considerations.

Summary Pay-Range

  • Level 1: $73,100 - $107,500  
  • Level 2: $87,550 - $128,750 

Benefits and Perks
Millennium Space Systems offers a very competitive benefits package to include medical, dental, vision, and 401k plan.

Before applying, please note:
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 are proud to be an Affirmative Action/Equal Opportunity Employer. We encourage veterans, disabled veterans and disabled individuals to apply for any open position for which they feel they are qualified.

Applicant Privacy Policy
Mandatory Security Clearance and Access Process Disqualifying Criteria


Apply for this position

Apply with Indeed
We've received your resume. Click here to update it.
Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or Paste resume

Paste your resume here or Attach resume file

To comply with government Equal Employment Opportunity and/or Affirmative Action reporting regulations, we are requesting (but NOT requiring) that you enter this personal data. This information will not be used in connection with any employment decisions, and will be used solely as permitted by state and federal law. Your voluntary cooperation would be appreciated. Learn more.

Invitation for Job Applicants to Self-Identify as a U.S. Veteran
  • A “disabled veteran” is one of the following:
    • a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or
    • a person who was discharged or released from active duty because of a service-connected disability.
  • A “recently separated veteran” means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
  • An “active duty wartime or campaign badge veteran” means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
  • An “Armed forces service medal veteran” means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.
Veteran status

Voluntary Self-Identification of Disability
Voluntary Self-Identification of Disability Form CC-305
OMB Control Number 1250-0005
Expires 04/30/2026
Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Please check one of the boxes below:

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

You must enter your name and date
Human Check*