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Senior Software Engineer

Modern Technology Solutions, Inc.

Posted today

Job Requirements

Springfield, VA
Top Secret/SCI CI Polygraph
Career Level not specified
Salary not specified
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Job Description

Modern Technology Solutions, Inc. (MTSI) is hiring a Senior Software Engineer in Springfield, VA. Qualified candidates must be U.S. citizens with a TS/SCI clearance and CI Polygraph.

Responsibilities:
  • Support AI/ML Test & Evaluation (T&E) activities for mission-critical national security programs.
  • Leads the development and maintenance of the technical and process foundation required for consistent, traceable, and repeatable execution of MT&E, ST&E, and HMTT&E activities across the program.
  • Design and implement the operational ST&E environment by provisioning virtual infrastructure and integrating tools, data pipelines, and evaluation capabilities that replicate deployed operational model environments.
  • Develops and maintains the authoritative T&E framework used to standardize evaluation workflows, test execution, reporting, and operational data integration across diverse AI/ML models and mission systems.
  • Works closely with stakeholders, engineers, data scientists, and the mission team to establish scalable and auditable evaluation workflows that support mission-focused operational testing and repeatable AI/ML assessment activities across evolving operational environments.
  • Integrate virtual infrastructure, tools, data pipelines, and evaluation capabilities that replicate deployed operational model environments.
  • Document T&E processes, tools, metrics, data flows, and evaluation methodologies supporting repeatable operational assessments.
  • Support development of auditable workflows and operational frameworks aligned with mission objectives and compliance requirements.
  • Resolve technical integration issues affecting evaluation consistency, operational scalability, and workflow reliability.
  • Support automation, orchestration, and optimization of operational AI/ML evaluation workflows across evolving environments.
  • Contribute to technical documentation, system architecture development, operational reporting, and customer briefings.


Qualifications Required:
  • 8+ years of demonstrated experience supporting software engineering, system integration, or operational platform development activities.
  • Experience developing scalable applications, workflows, or infrastructure supporting mission or enterprise environments.
  • Familiarity with cloud-based architectures, virtual infrastructure, APIs, and automated deployment pipelines.
  • Experience supporting software development lifecycle activities within Agile or DevSecOps environments.
  • Strong analytical, troubleshooting, and technical communication skills.


Education Requirements:
  • Bachelor's Degree in software/systems engineering or similar field, or additional relevant experience in lieu of a degree.


Desired Qualifications:
  • Experience supporting DoD, NGA, or Intelligence Community programs.
  • Familiarity with AI/ML operational environments, evaluation pipelines, and testing frameworks.
  • Experience with containerization technologies, orchestration frameworks, CI/CD pipelines, and cloud-native development.
  • Familiarity with operational data pipelines, workflow automation, and scalable evaluation architectures.
  • Experience supporting mission-focused T&E or operational AI/ML environments.


Clearance Requirements:
  • Active TS/SCI clearance and the ability to pass a CI polygraph within 30 days.


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About Us
Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned technology firm specializing in Digital Engineering, Space Systems, Unmanned Systems, Flight Test Engineering, Modeling and Simulation, Cybersecurity, and DevOps for vital defense and intelligence programs. MTSI excels in delivering premier solutions to address global challenges. Founded in 1993, MTSI now operates across 20+ global offices and field sites. Perks of being part of MTSI's employee-ownership culture include: • 6% 401k matching with immediate vesting • Semi-annual performance bonuses • Company-funded Employee Stock Ownership Plan (ESOP) • 20 days of paid time off (PTO), 10 paid holidays, and flexible work schedules • Optional zero-deductible BC/BS insurance with FSA • Certified as a top workplace Join us in a company with a long-term strategy and a commitment to our employee-owners, free from external shareholders' demands.

Modern Technology Solutions, Inc. Jobs


Job Category
IT - Software
Clearance Level
Top Secret/SCI