The Software Systems Designer SME provides technical leadership in the design, integration, and delivery of complex software systems supporting advanced digital infrastructure efforts. This role focuses on enabling modern, cloud-based software environments and DevSecOps pipelines to support the development, integration, and delivery of software across platform, weapon, and terrestrial systems in highly secure environments.
The ideal candidate brings a systems-oriented mindset, experience coordinating across diverse technical teams, and the ability to communicate complex software and architecture concepts to a wide range of stakeholders.
Key Responsibilities
Software Systems Design & Integration
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Support the design and integration of software systems across embedded platforms, mission systems, and terrestrial applications.
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Contribute to software development activities including prototyping, integration, testing, and delivery across multiple security levels.
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Ensure software solutions support interoperability, scalability, and long-term sustainability.
Digital Infrastructure & DevSecOps Enablement
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Support modern digital infrastructure and software pipelines that enable secure development, integration, and delivery.
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Collaborate with cross-functional teams to improve software agility, automation, and delivery speed.
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Evaluate and recommend improvements to tools, workflows, and processes supporting DevSecOps execution.
Architecture Alignment & Technical Assessment
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Support alignment with open architectures, reference frameworks, and interface standards.
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Participate in technical planning, design reviews, test reviews, and technical assessments.
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Assist in evaluating system designs for compliance, integration readiness, and operational suitability.
Technical Coordination & Communication
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Coordinate technical efforts across government and industry stakeholders.
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Develop technical documentation, briefing materials, and decision support content.
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Present technical information clearly to both technical and non-technical audiences, including senior leadership.
Key Competencies
Active TS/SCI clearance (required).-
Bachelor’s degree in Engineering, Computer Science, or a related technical field.
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Experience supporting software systems design, integration, or architecture in secure or regulated environments.
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Familiarity with modern software development practices, including Agile and DevSecOps.
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Experience using collaboration and engineering tools such as Jira, Confluence, and Cameo.
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Ability to work in classified environments, including vault/SCIF settings.
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Willingness to travel up to 20%.
Desired Qualifications
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Experience working with open architectures, modular software systems, or reference architectures.
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Background supporting complex system-of-systems or mission-critical software efforts.
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Exposure to software delivery across multiple lifecycle phases.
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Strong problem-solving skills and willingness to operate in fast-paced, evolving environments.
#LI-ZS1
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TS/SCI
Vacation:
New Hires Accrue 20 days of PTO and 10 Holidays per Year
Health Insurance:
Zero Deductible Health Plans
Flexible Schedules:
Flex Schedules
Professional Development:
Up to $10,000 Annual Education/Training Reimbursement
ESOP:
Funded Stock Ownership Plan
401k Match+:
6% 401k Match + Immediate Vesting
Bonus Program:
Semi-Annual Bonus Opportunity
Mentorship:
Career Mentorship Programs
Interesting Work:
Our co-workers support some of the most important and critical programs to our national defense and security.
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.
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.
Great Benefits - Most Full-Time Staff Are Eligible for:
Starting PTO accrual of 20 days PTO/year + 10 holidays/year
Flexible schedules
6% 401k match with immediate vesting up to $9k annually
Semi-annual bonus eligibility (July and Decemeber)
Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
Up to $10,000 in annual educational reimbursement
Other company funded benefits, like life and disability insurance
Optional zero deductible Blue Cross/Blue Shield health insurance plan
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 visitwww.mtsi-va.com
MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.
- Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security.
- 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.
- 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.
- Great Benefits - Most Full-Time Staff Are Eligible for:
- Starting PTO accrual of 20 days PTO/year + 10 holidays/year
- Flexible schedules
- 6% 401k match with immediate vesting up to $9k annually
- Semi-annual bonus eligibility (July and Decemeber)
- Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
- Up to $10,000 in annual educational reimbursement
- Other company funded benefits, like life and disability insurance
- Optional zero deductible Blue Cross/Blue Shield health insurance plan
- 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
