Software Systems Designer SME

• Lead the design, architecture, and optimization of software systems tailored to DoD mission requirements.
• Develop detailed specifications, software requirements documentation, and design solutions for complex systems.
• Ensure software systems maintain interoperability across platforms and applications within the DoD infrastructure.
• Evaluate emerging technologies, frameworks, and methodologies to recommend solutions that improve system capabilities and efficiency.

• Serve as the Subject Matter Expert (SME) for designing and integrating software systems in secure environments.
• Provide technical guidance and mentoring to development teams across the software lifecycle, including requirements analysis, design, coding, testing, deployment, and maintenance.
• Support root-cause analysis and resolution of critical technical issues related to system performance, scalability, or cybersecurity vulnerabilities.
• Deliver expert recommendations on the selection of programming languages, development tools, and software patterns.

• Ensure system designs comply with Department of Defense cybersecurity standards such as Risk Management Framework (RMF), STIG compliance, and FISMA/NIST guidelines.
• Implement robust security measures to protect data integrity and safeguard classified information from unauthorized access or breaches.
• Collaborate with cybersecurity teams to embed secure coding practices and hardening strategies into all software deliverables.

• Collaborate with engineers, testers, and stakeholders to integrate software solutions with DoD systems and platforms effectively.
• Conduct testing and evaluation of system performance, reliability, and security within operational constraints.
• Oversee system certifications and approvals, ensuring final designs meet user and mission requirements.
• Provide post-deployment support, resolving technical issues and optimizing software functionality.

• Develop detailed design documentation, user manuals, and technical diagrams for stakeholders.
• Provide expert-level input for program reports, lifecycle cost estimates, and risk analyses for leadership review.
• Present briefings to senior leadership to demonstrate system capabilities and address design modifications.

• Expertise in modern programming languages such as Python, Java, C++, or similar.
• Deep understanding of software development methodologies, including Agile, DevSecOps, and waterfall models.
• Knowledge of Department of Defense systems and secure development requirements (e.g., STIG, RMF, MIL-STD compliance).
• Proficiency in cloud computing platforms (e.g., AWS, Azure, or DoD Cloud solutions) and containerization technologies (e.g., Docker, Kubernetes).
• Strong analytical and problem-solving skills to address complex, mission-critical challenges.
• Exceptional communication skills to coordinate with stakeholders and convey technical concepts effectively.

• Security Clearance: Active Top Secret clearance with eligibility for Sensitive Compartmented Information (SCI).
• Education: Bachelor's Degree in Computer Science, Software Engineering, or related field. Advanced degrees and equivalent military or professional experience may be substituted.
• Experience:
• Minimum of 15 years of software development and systems design experience, including DoD environments.
• Proven ability to deliver large-scale, mission-critical software solutions.
• Certifications:
• Preferred certifications include Certified Information Systems Security Professional (CISSP), AWS Solutions Architect, or relevant Agile certifications.
• Familiarity with secure software development tools such as Fortify, SonarQube, or GitLab.

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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
  
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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 tuition 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