Software Systems Designer SME

• Support the design and integration of software systems across embedded platforms, mission systems, and terrestrial applications.
• Contribute to software development activities including prototyping, integration, testing, and delivery across multiple security levels.
• Ensure software solutions support interoperability, scalability, and long-term sustainability.

• Support modern digital infrastructure and software pipelines that enable secure development, integration, and delivery.
• Collaborate with cross-functional teams to improve software agility, automation, and delivery speed.
• Evaluate and recommend improvements to tools, workflows, and processes supporting DevSecOps execution.

• Support alignment with open architectures, reference frameworks, and interface standards.
• Participate in technical planning, design reviews, test reviews, and technical assessments.
• Assist in evaluating system designs for compliance, integration readiness, and operational suitability.

• Coordinate technical efforts across government and industry stakeholders.
• Develop technical documentation, briefing materials, and decision support content.
• Present technical information clearly to both technical and non-technical audiences, including senior leadership.

• Active TS/SCI clearance (required).
• Bachelor's degree in Engineering, Computer Science, or a related technical field.
• Experience supporting software systems design, integration, or architecture in secure or regulated environments.
• Familiarity with modern software development practices, including Agile and DevSecOps.
• Experience using collaboration and engineering tools such as Jira, Confluence, and Cameo.
• Ability to work in classified environments, including vault/SCIF settings.
• Willingness to travel up to 20%.

• Experience working with open architectures, modular software systems, or reference architectures.
• Background supporting complex system-of-systems or mission-critical software efforts.
• Exposure to software delivery across multiple lifecycle phases.
• Strong problem-solving skills and willingness to operate in fast-paced, evolving environments.

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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