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Hours Full-time, Part-time
Location El monte, California

About this job

Own Your Future.


Modern Technology Solutions, Inc. (MTSI) is seeking Satellite Ground Software SME to fill a SETA (Scientific, Engineering, and Technical Assistance) position with the Space Development Agency (SDA).  SDA is breaking the norms of the DoD acquisition cycle, delivering a new tranche of hundreds of satellites every two years. SDA is a fast-paced organization and is changing the way that the Department of Defense acquires space systems by building the Proliferated Warfighter Space Architecture (PWSA). The PWSA is composed of satellites produced by multiple satellite vendors, each of which is responsible for creating their own ground system to command and control their vehicles. The Satellite Ground Software SME will be responsible for overseeing the design, development integration, and test of the ground systems of the individual spacecraft vendors and the integration of these systems into a combined ground segment. The combined ground segment performs integrated mission planning and network management across the diverse spacecraft vendor provided ground systems. This position is part of an MTSI team supporting SDA in Chantilly, VA, although remote and/or hybrid arrangements may be possible, with a preference for locations in Chantilly, VA, or near one of the spacecraft vendor facilities in Denver, CO, Los Angeles, CA, or Valley Forge, PA. 


Why is MTSI known as a Great Place to Work?

  • Interesting Work:  Our co-workers support some of the most important and critical programs to our national defense and security.  
  • Values: Our first core value is that employees come first.  We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry. 
  • 100% Employee Ownership: we have a stake in each other's success, and the success of our customers.  It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.  
  • Great Benefits - Most Full-Time Staff Are Eligible for: 
    • Starting PTO accrual of 20 days PTO/year + 10 holidays/year
    • Flexible schedules
    • 6% 401k match with immediate vesting
    • Semi-annual bonus eligibility (July and December)
    • Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
    • Up to $10,000 in annual tuition reimbursement
    • Other company funded benefits, like life and disability insurance
    • Optional zero deductible Blue Cross/Blue Shield health insurance plan
  • Track Record of Success:  We have grown every year since our founding in 1993

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance.


MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.


For more information about MTSI, please visit .



As a Satellite Ground Software SME with MTSI, you will apply knowledge and expertise to oversee the development of the spacecraft vendor provided ground systems.  Occasional travel will be required. Applicant will provide subject matter expertise to support the development of the ground systems for SDA’s spacecraft vendors. These ground systems are responsible for performing command and control of each spacecraft vendors satellites as well as integrating into the combined mission planning and network management system. The ground systems must support over dozens of vendor SVs with minimal operator interactions. Applicant will advise on the development of the system through design and into operations, including assessing the software development practices, compliance with requirements, and operational utility. Remote work is a possibility, but preferred locations are near SDA’s technical headquarters in Chantilly, VA or near the space vehicle contractor’s facilities in Denver, CO, Valley Forge, PA, or Los Angeles, CA is preferred.


Your essential job functions will include but may not be limited to:

  • Overseeing the development of the spacecraft vendor ground systems, including satellite command and control, mission planning, network management, and operation interactions
  • Creating and understanding use cases to be used in the development of the ground software
  • Coordinating the integration of the spacecraft vendor ground systems with the integrated mission planning and network management framework
  • Evaluating the verification evidence provided by the spacecraft vendors for compliance to requirements
  • Participating in the spacecraft contractor’s agile development process of their ground system
  • Assisting SDA test teams to ensure that the ground systems are sufficiently tested


  • Domain knowledge of satellite ground systems, including command and control and mission planning
  • Experience developing or operating satellite software ground systems
  • Experience working in Agile development environments
  • Experience creating software use cases using systems engineering best practices
  • Ability to rapidly come up to speed on complicated software and requirements
  • Experience integrating diverse software components into a coherent system of systems
  • Demonstrated understanding of satellite operations and constraints
  • Experience working DoD or Intelligence community programs
  • Strong leadership and communication skills

Preferred/Desired Experience:


  • Experience working with commercial and/or Government satellite systems
  • Fifteen (15) years DoD/IC, or relevant industry hands on work experience 
  • Software development experience in a modern programming language
  • Experience with cloud development environments and tools
  • Experience working with DevSecOps best practices and pipelines
  • Familiarity with cybersecurity requirements and RMF practices


Education Requirements:

  • Bachelor’s degree in aerospace engineering, electrical engineer, systems engineering, physics, or a closely related field from an accredited university (REQUIRED)
  • Master’s degree in aerospace engineering, electrical engineer, systems engineering, physics, or a closely related field from an accredited university (DESIRED)

Certification Requirements:

  • None

Clearance Requirements:

  • Active Secret Clearance (Required)
  • Active Top Secret Clearance (Desired)
  • TS/SCI Eligibility (Required)
  • U.S. Citizenship is required for this position.