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Modeling and Simulation Software Integration Engineer

Modern Technology Solutions, Inc.
401(k)
United States, Alabama, Huntsville
Aug 07, 2026
The M&S Software Integration Engineer will support the mission of the Missile Defense Agency (MDA) Engineering Directorate Modeling & Simulation (M&S) Office to test the Missile Defense System (MDS) in a distributed Hardware-In-the-Loop (HWIL) simulation environment, including MDS Ground Test (GT) events and MDS Flight Test support (pre-mission risk reduction, mission execution team training, and post-flight reconstruction), as well as M&S development and test support to other Department of Defense (DoD) Partners.
Responsibilities and areas of support include, but are not limited to the following:
  • Support the integration, testing, and operation of HWIL simulation environments for MDS Ground Tests, Flight Tests, and continuous integration activities.
  • Conduct installation, configuration, checkout, and testing of Objective Simulation Framework (OSF) systems in accordance with program requirements.
  • Analyze HWIL architecture performance and assist in identifying and resolving hardware/software integration issues.
  • Evaluate and troubleshoot network traffic and connections
  • Responsible for installing and configuring M&S Framework in compliance with program instructions, ensuring functionality between MDA elements, and documenting configurations and results within the government lab
  • Execute test scenarios, including threat modeling and simulation for mission-specific requirements.
  • Document system configurations, test procedures, and results, and generate reports to support test events and analysis.
  • Adhere to current processes and procedures, provide status as requested, and collaborate with team members in person and electronically
  • Collaborate with teams and support mission planning, execution, and post-event analysis for ground and flight test activities, including pre-mission risk reduction and post-flight reconstruction.
Desired qualifications include:
  • System Administration experience and certifications such as Security+ and/or Linux+ are highly desirable
  • Familiarity with operating and managing containerized applications in a cloud-based environment
  • Experience supporting Missile Defense Agency (MDA) programs or similar defense systems. Familiarity with Objective Simulation Framework (OSF) or similar simulation tools.
  • Familiarity with GMD System Trainer (GST), with BCM - Ballistic Missile Defense Sytem (BMDS) Command and Control, Battle Management, and Communications (C2BMC) Model, and with TGx - Threat Generator External.
  • Software testing background with experience in the development of software test plans, test procedures, and test reports
  • Prior Test and Evaluation (T&E) experience supporting Pre-Flight/Ground Testing supporting Missile Defense Agency (MDA)
Travel:
  • Travel: This role requires the ability to travel up to 25-30% to support mission-critical events and meetings.
  • Work Schedule: Occasional night and weekend work is expected to meet critical testing schedules and event-driven timelines.
Education:
  • BS in Engineering, Mathematics or Computer Science from an accredited university
  • 5-7 years' experience
Clearance
  • SECRET clearance/ TS Preferred
  • Position requires that candidate possesses a final and active SECRET security clearance and is able to maintain the clearance.
Work Location
  • Huntsville, AL Redstone Arsenal- On-site
  • Tasks will primarily be performed in the local government facility but may also require support in various other CONUS and OCONUS locations.
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  • 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 December)


    • 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

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.


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