Senior Test and Evaluation Engineer

Senior Test and Evaluation Engineer Modern Technology Solutions, Inc. $165,000.00 - $205,000.00 / yr 401(k) United States, California, El Segundo Feb 19, 2026 Overview Modern Technology Solutions, Inc. (MTSI) is seeking a highly experienced Sr Test & Eval Engineer to lead ACAT-like test and evaluation planning and execution for developmental and operational testing of advanced space control systems. This role supports a U.S. Space Force (USSF) program office responsible for delivering cutting-edge capabilities across space, ground, and command-and-control (C2) mission areas. Work will be performed in secure government environments supporting highly sensitive, mission-critical programs. The ideal candidate brings both technical mastery and strategic insight to ensure rigorous, evidence-based assessment of system performance. Responsibilities As a senior technical leader in test and evaluation, you will guide comprehensive test strategies, execute evaluation activities, and provide actionable insights to senior program leadership. You will collaborate across multi-disciplinary teams to ensure test programs are technically sound, risk-informed, and fully aligned with mission requirements. Roles and Responsibilities Lead planning, execution, and evaluation of ACAT-like developmental and operational test programs, ensuring alignment with program objectives. Develop, maintain, and validate test plans, procedures, data collection methods, and evaluation criteria for complex systems. Coordinate test readiness across engineering, systems, and acquisition teams, ensuring integrated and technically robust test execution. Manage and oversee deficiency identification, tracking, and resolution through formal test boards and working groups. Analyze test data, assess system performance, and provide evidence-based recommendations to senior government leadership. Support system integration, verification, and validation across space, ground, and C2 mission segments. Prepare and deliver technical briefings, risk assessments, and decision-support documentation to senior stakeholders. Represent the program office in contractor test reviews, technical interchange meetings, and cross-organizational forums. Mentor and guide junior test engineers, fostering a high-performing, knowledge-sharing team environment. Qualifications Expert-level experience in ACAT-like test and evaluation planning and execution for developmental and operational testing of complex systems. Proven ability to lead test teams, manage high-stakes evaluations, and deliver actionable technical recommendations. Experience managing test deficiencies and coordinating resolution in formal processes or boards. Strong analytical skills with the ability to interpret complex test data and communicate results effectively to senior leadership. Experience in

SAPF/SCIF

environments or highly classified programs preferred. Desired Requirements Experience supporting ACAT I/II or highly classified special access programs. Familiarity with DoD test and evaluation standards, milestone reviews, and verification processes. Experience with test management tools, automated testing frameworks, or advanced data analysis systems. Education Requirements MA/MS degree preferred.

Tradeoff:

A Bachelor's degree is acceptable with 12+ years of relevant experience in similar programs or positions. The Materiel Leader may waive the MA/MS requirement based on experience and mission needs. Degree should be in engineering, physics, computer science, or a related technical field from an accredited institution. Clearance Requirements Active

TOP SECRET

clearance with SCI eligibility required. Must be willing to work in SAP environments as needed. Must maintain TS/SCI eligibility and be willing to undergo a Counterintelligence polygraph. U.S. Citizenship is required. Location/Travel Requirements Full-time on-site support within secure government facilities (SAPF/SCIF). Approximately 15-20% CONUS travel, with potential for limited OCONUS travel depending on mission needs. For additional company information, please visit: www.mtsi-va.com The pay range for this position in California is $165,000/year to $205,000/year; however, base pay offered may vary depending on established government contract wages, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applicants should apply via MTSI's internal or external careers site. #LI-BH1 #MTSI #

MTSIjobs 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.