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Test Engineer - Sr. Principal

Modern Technology Solutions Inc Dayton, Ohio, United States

onsitefull-time
Posted Nov 29, 2025Apply by Dec 29, 2025

Role & seniority: Test Engineer – Senior/Principal (Sr. Principal) at MTSI

Stack/tools: Developmental/Operational Testing (DT/OT); Test & Evaluation Master Plan (TEMP); Integrated Test Team (ITT); hardware-in-the-loop (HIL); software-in-the-loop (SIL); live-fire testing (LFT); DOD security standards; ACAT I/II program familiarity; C2/tactical sensors, data links, and related DoD systems

Top 3 responsibilities

  • Stand up ITT charter and manage T&E strategy, TEMP, and related documentation; form subgroups and allocate T&E resources

  • Coordinate planning, management, and oversight of DT/OT activities and ensure alignment across Contractor/PTO efforts

  • Document test activities, write test reports, analyze data, and provide recommendations to Lead Engineer and leadership; support HIL/SIL testing and LFT

Must-have skills

  • 15+ years engineering experience focused on DT/OT

  • Proficiency in writing/translating TEMP and DT/OT plans; knowledge of DoD T&E policies and procedures

  • Experience with ACAT I/II programs; familiarity with military comms, DoD standards/regulations; outstanding written and oral communication

  • Ability to coordinate across internal and external organizations; independent/task-leading capability; fast-paced, agile environment

Nice-to-haves

  • Security: DoD policies, security standards; DoD SCI eligibility

  • Specialized domain knowledge in tactical sensors, missile defense effectors, tactical data links, sensor/effector integrati

Full Description

Modern Technology Solutions, Inc. (MTSI) is seeking a Test Engineer - Sr. Principal in Dayton, OH.

The Test Engineer will support PEO C3BM – ABMS – Advanced Battle Management Systems customer. The customer organization is responsible for capability development and development planning. The Test Engineer will work with internal and external stakeholders to plan, execute, assess, and document Developmental Testing (DT) and Operational Testing (OT) of tactical command and control (C2) systems. This position will be co-located with the customer at WPAFB, OH. The majority of the work will be performed in the customer workspace. Some travel is expected (up to 20%).

Responsibilities

Standup Integrated Test Team (ITT) Charter for developing and managing the T&E Strategy, Test and Evaluation Master Plan (TEMP) and other required documentation, as well as forming subgroups and identifying T&E resource requirements. Assist in developing the T&E Strategy that integrates policy, program requirements, cost & resource estimates, evaluation framework, and overall schedule to accomplish program goals. Coordinate the planning, management, and oversight of DT/OT activities and maintain oversight of Contractor and Participating Test Organization (PTO) T&E activities supporting the program. Document test activities, including writing test reports, analyzing test data, and making recommendations to the Lead Engineer and leadership. Support developmental hardware-in-the-loop (HIL) and software-in-the-loop (SIL) testing in a digital environment, as well as live fire testing (LFT) in an operational environment. Establish trusted and influential relationships with customers, vendors, and other stakeholders. Must have a demonstrated ability to coordinate with both internal and external organizations to accomplish common goals. Must have excellent verbal and written communication skills. Knowledge of Government policies, directives, standards, handbooks, and pamphlets as well as DoD-adopted industry standards relating to security is highly desired.

Specialized knowledge in any of the following areas: tactical sensors, missile defense effectors, tactical data link networks, sensor/effector integration, aircraft systems. Knowledge of the Air Force Life Cycle Management Center’s framework, directives, and policies.

Qualifications

Minimum 15 years of engineering experience, with a focus on developmental test or operational test (DT/OT). Knowledge of DoD T&E policies, practices, procedures. Experience in writing/translating test documents such as TEMP, DT/OT plans Experience with ACAT I/II acquisition programs is highly desirable Familiarity with military communication systems, DoD standards and regulations. Demonstrated ability to shift from one project to another in a dynamic, agile work environment. Excellent oral and written communication skills and ability to clearly translate client technical needs into technical specifications. Demonstrated ability to independently execute, lead, and complete tasks; drive projects to closure, assimilate and correlate project information in a fast-paced environment.

Education Requirements

B. S. degree in an engineering or technical discipline.

  • Master’s degree in engineering or technical discipline. (Highly Desired)

Security Clearance Level Required

Must possess an active DoD Top Secret Clearance with SCI eligibility.

Please Note: U.S. Citizenship is required.

#MTSIJobs

Test EngineeringDevelopmental TestingOperational TestingDocumentationCommunication SkillsTactical CommandC2 SystemsT&E StrategyTest ReportsData AnalysisMilitary Communication SystemsDoD StandardsAgile EnvironmentProject ManagementSensor IntegrationMissile Defensemulti-location

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