Millennium Space Systems

Advanced Concepts Modeling and Simulation Engineer

Engineering - El Segundo, CA - Full Time

Millennium Space Systems 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. Join our world-class team and help create the future of affordable, high-reliability space systems. We work in an open environment where ideas are shared across all disciplines, and there are ample opportunities for advancement based on excellence.

As the Advanced Concepts Modeling and Simulation Engineer you will develop new algorithms, write simulations, and analyze key performance parameters associated with advanced space and ground sensor system designs. The candidate should have demonstrated experience developing, simulating, evaluating, and presenting space and ground based system level performance analysis. This position supports our advanced concepts modeling and simulation group assisting in new business development, external proposals, mission level requirements analysis, internal R&D projects, on-orbit operations, patents, external publications, and presentations.


  • Research and evaluate state-of-the art ground/space-based sensors, constellation designs, satellite maneuver strategies
  • Design and maintain a SQL database
  • Design and test models/algorithms of different sensor phenomenologies and satellite maneuvering strategies
  • Design, simulate, evaluate, and document system level performance of advanced space concepts
  • Participate in communicating findings to select audiences and group members
  • Support existing flight program ground and flight software development efforts
  • Support external proposals, internal IR&D projects, patent applications and technical publications as required


  • B.S. in Computer Science, Aerospace Engineering, Applied Mathematics, or Physics (advanced degree is preferred)
  • Expert Level Proficiency with MATLAB/Simulink
  • Experience with Java, C, C++, FORTRAN, Perl a plus
  • Familiarity with SQL and experience with SQL database design
  • Knowledge and experience of applied mathematical modeling and algorithm development of Astrodynamics and physics based systems
  • Excellent interpersonal communication and research skills
  • US citizenship


  • 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 veterans, disabled veterans and disabled individuals to apply for any open position for which they feel they are qualified.
  • We are proud to be an Affirmative Action/Equal Opportunity Employer.
Apply: Advanced Concepts Modeling and Simulation Engineer
* Required fields
First name*
Last name*
Email address*
Phone number*

Attach resume as .pdf, .doc, or .docx (limit 2MB) or paste resume

Paste your resume here or attach resume file

Cover Letter*
LinkedInLinkedIn profile URL:
In 150 characters or fewer, tell us what makes you unique. Try to be creative and say something that will catch our eye!*
Are you a U.S. citizen?*
Do you have an active SCI, Secret or Top Secret clearance?*
Do you claim dual citizenship with a country other than the U.S.?*
Are any of your immediate family members citizens of a country other than the U.S. or claim dual citizenship?*
Do you, your spouse or cohabitant have any close or continuing contact with citizens of another country?*
Do you, your spouse, cohabitant, or dependent children have any foreign interests (such as stocks, property, investments, bank accounts, ownership of corporate entities or corporate interests/businesses)?*
Have you had any bills referred to a collection agency, had your wages garnished, have any tax liens against you or filed for bankruptcy?*
Have you ever had a security clearance or access denied, revoked or suspended?*
In the last seven (7) years, have you consulted with a health care professional regarding an emotional or mental health condition or were you hospitalized for such a condition? (Note: Answer “NO” if the counseling was for any of the following reasons and was not court-ordered: Strictly marital, family, grief not related to violence by you; or strictly related to adjustments from service in a military combat environment.*
In the past seven (7) years have any of the following happened to you:
a. Been issued a summons, citation, or ticket to appear in court in a criminal proceeding against you? (not including citations involved traffic infractions where the fine was less than $300 and did not include alcohol or drugs)
b. Been arrested by any police officer, sheriff, marshal or any other type of law enforcement official?
c. Been charged, convicted, or sentenced of a crime in any court? (Include all qualifying charges, convictions or sentences in any Federal, state, local, military, or non-U.S. court)
d. Have been or are you currently or probation or parole?
e. Are you currently on trial or awaiting a trial on criminal charges?
f. Been convicted in any court of the United States or a crime, sentenced to imprisonment for a term exceeding 1 year for that crime?
g. Been charged with a felony offense?
h. Been convicted of any offense involving domestic violence or a crime of violence against your child, dependent, cohabitant, spouse, former spouse, or someone with whom you share a child in common?*
Human Check*
Forward this Position
Recipient email address (one)
Your name
Your email address
Enter a message (optional)