Principal Digital Engineer

• Able to combine expertise in API integration, cloud architecture, model-based systems engineering, dashboard development, DevSecOps, tactical interoperability, and digital engineering to coordinate and accelerate delivery of operational capabilities.
• Lead onboarding and integration of external software, models, simulations, AI tools, and operational capabilities.
• Design and implement secure API-based integrations and data exchange architectures.
• Design and implement AI-enabled digital ecosystems supporting human-machine teaming.
• Develop integration architectures connecting APIs, data services, semantic layers, knowledge graphs, and AI orchestration frameworks.
• Implement semantic data models and ontologies to improve AI reasoning and data discoverability.
• Develop AI-ready data pipelines that transform structured and unstructured data into consumable knowledge assets.
• Integrate Large Language Models (LLMs), agentic AI frameworks, and workflow automation services into enterprise environments.
• Develop enterprise dashboards and common operational pictures.
• Support MBSE activities using SysML, activity diagrams, and block diagrams.
• Develop common data models and integration standards.
• Support tactical interoperability including Link 16 and gateway architectures.
• Support DevSecOps pipelines and cloud-native deployments.
• Provide technical recommendations to government leadership.

• MS in STEM field.
• 12+ years related experience in software integration, systems engineering, or enterprise architecture.
• Experience with API design and integration.
• Working knowledge of MBSE and SysML.
• Experience building enterprise dashboards.
• Experience with cloud environments and container technologies.
• Active or Interim Secret clearance.

• Experience supporting DoD programs.
• Experience with Cameo, MagicDraw, Sparx EA, or Rhapsody.
• Experience with Power BI, Tableau, Grafana, or Kibana.
• Experience with Kubernetes, GitLab, Terraform, and CI/CD pipelines.
• Knowledge of Link 16, tactical data links, and C2 architectures.
• Knowledge of AI-enabled workflows and digital engineering ecosystems to include Semantic Search, RAG Architectures, LLM Integration, Agentic AI Frameworks, AI Orchestration Platforms, and Data Fabric Architectures.

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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