Millennium Space Systems

Electro-Optical Systems Engineer

Engineering - El Segundo, CA - Full Time

Join our small, close knit engineering team developing advanced space missions as a Electro-Optical Payload Systems Engineer.  Millennium Space Systems designs and develops small satellites and other unique space systems. The Payload Systems Engineer works on space systems mission & system design trades, analysis, and support in synthesizing systems requirements and designs for Electro-Optical payloads on Millennium spacecraft. The Payload Systems Engineer works under the direction of a Program Manager, Chief Engineer, and/or Senior Systems Engineer.  Our Payload Systems Engineers are involved with developing requirements, design, analysis, and development through system integration, and into flight operations.


  • Performs space systems mission & system design trades, analysis, and support in synthesizing systems requirements and designs.
  • Manages Electro-Optical payload design, analysis, manufacture, integration, test & operations.
  • Ensures timely and cost effective accomplishment of contractual commitments and/or established programmatic goals and is responsible for assigned technical performance during system development.
  • Supports program technical planning & direction, risk management, interface development & coordination, margin management & allocations, configuration management, and overall space system verification.

Minimum Qualifications:

  • 5-8 years of directly related experience in designing, building, integrating, and test Electro-Optical payloads.
  • Strong understanding of all aspects of Electro-Optical payload design, manufacture and test to include thermal, mechanical, electrical, optical, and overall functional performance.
  • Able to develop clear, complete and verifiable interface and performance requirements for complex Electr-Optical payloads.
  • Able to supervise the technical aspects of procurement and/or manufacture of Electro-Optical payloads and their piece-part components
  • Able to manage the integration of Electro-Optical payloads into Millennium spacecraft.
  • Able to manage the test and verification of Electro-Optical payload interface and performance requirements.
  • Bachelor's degree in an Engineering or Science discipline; Master's degree or higher is preferred. 
  • Technical proficiency to perform space system design in multiple engineering disciplines and be able to work in a highly integrated small team environment.
  • Ability to develop and implement systems engineering processes and practice, including requirements analysis, functional analysis & allocation, system synthesis, risk management and configuration management processes.
  • Ability to work in a highly integrated small team environment.​


  • 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. We work in an open environment where ideas are shared across all disciplines, and there are ample opportunities for advancement based on excellence.
  • 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.


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