Ground Systems of System Engineer SME

• Hands-on experience flying, operating, and commanding on-orbit spacecraft, including real-time mission operations and command execution.

• Strong understanding of telemetry, tracking, and command (TT&C), uplink/downlink operations, ground stations, RF communications, and end-to-end command and telemetry paths.

• Knowledge of orbital mechanics, ephemeris, orbit determination, station keeping, maneuver execution, collision avoidance (COLA), contact planning, and constellation operations.

• Experience with spacecraft command databases/dictionaries, command sequences, telemetry definitions, CCSDS protocols, packetization/framing, and command validation and verification.

• Experience with mission/satellite operations centers, ground-system architectures, antenna networks, mission applications, and interfaces between ground software, networks, RF systems, and spacecraft.

• Experience integrating and testing spacecraft and ground systems using simulators, SIL/HIL environments, flatsats, or operational test environments, including requirements verification and test-result analysis.

• 15+ years of experience in systems engineering for space and ground assets, with emphasis on ground systems integration.
• In-depth knowledge of ground station operations, telemetry, tracking, command systems, and communication architectures.
• Proficiency in engineering tools such as STK, MATLAB, LabVIEW, or similar modeling platforms.
• Strong problem-solving skills with a focus on large-scale system optimization.
• Excellent collaboration and communication skills to work effectively with diverse teams and stakeholders.

• Must have an Active Top-Secret Clearance with SCI Eligibility

• Experience working on DoD programs, such as Golden Dome or similar national security-focused initiatives.
• Familiarity with industry standards for ground and space systems (e.g., CCSDS, MIL-STD protocols).
• Certifications like Certified Systems Engineering Professional (CSEP), Network+, or Security+.
• Hands-on experience with advanced networking technologies, virtualization, and cloud-based ground operations platforms.

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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
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  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.
  
  
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  100% Employee Owned:
  
  
  
  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.
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  




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  Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
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  Flexible schedules
  
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  6% 401k match with immediate vesting up to $9k annually
  
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  Semi-annual bonus eligibility (July and December)
  
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  Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
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  Up to $10,000 in annual educational reimbursement
  
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  Other company funded benefits, like life and disability insurance
  
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  Optional zero deductible Blue Cross/Blue Shield health insurance plan
  




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  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 www.mtsi-va.com