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Senior System Integration & Test EngineerCompetitive Salary (Based on Experience and Market Conditions)Signing Bonus • Equity • Relocation AssistanceHybrid | Huntsville, AL | Full-Time | 9/80 ScheduleThis isn't another defense contractor job.Join a mission-focused engineering team integrating and testing complex RF-, embedded-, hardware-, and software-intensive systems for national defense. This senior-level individual-contributor role is centered on hands-on system integration, verification, validation, and test execution from benchtop and laboratory environments through HWIL, field testing, and formal Government-sponsored test events, including flight testing where applicable.Why experienced engineers choose Secmation Own meaningful integration and test activities from early benchtop work through formalGovernment-sponsored test events. Work directly with complex RF, embedded, hardware, and software systems in laboratory, HWIL, field, and flight-test environments. Collaborate directly with Government customers, subcontractors, industry partners, and internal development teams. Solve cross-disciplinary integration problems and drive defects, risks, and test-readiness issues to closure. Work within a small, highly technical team where individual engineers have visible impact. Help transition defense technology from development into validated, operational capability.What you'll doIndependently own system integration, verification, validation, and test activities for complex defense systems. This is a highly hands-on individual-contributor role focused on technical execution, troubleshooting, test planning, verification, and customer-facing test readiness. The position does not carry formal technical team-lead responsibilities.You'll work across: Benchtop and laboratory integration through HWIL, field testing, and formal Government-sponsored test events, including flight testing where applicable. Translation of system requirements, technical capabilities, interfaces, and constraints into executable test plans, procedures, verification methods, and objective readiness and acceptance criteria. Integration of complex RF, embedded, hardware, and software subsystems, including cross-disciplinary troubleshooting and root-cause analysis. Technical coordination with Government customers, subcontractors, industry partners, program stakeholders, and internal development teams. Identification and management of integration risks, defects, technical action items, test readiness, and issue resolution through closure. System-level test execution, data analysis, verification evidence, detailed test reporting, and technical briefings to internal leadership and Government customers.What we're looking for U.S. citizenship and an active DoD Secret security clearance are required, with the ability to obtain and maintain TS/SCI.Bachelor's degree in Systems Engineering, Electrical Engineering, Computer Engineering, or a related technical discipline. 8+ years of progressive experience in systems integration, verification, validation, test engineering, or related systems engineering roles supporting complex hardware- and software-intensive systems within defense or national security programs. Demonstrated ability to independently own integration and test activities from benchtop and laboratory integration through HWIL, field testing, and formal Government-sponsored test events. Strong background integrating and testing RF, embedded, hardware, and software systems, including troubleshooting complex cross-disciplinary interfaces and system-level failures. Experience applying Model-Based Systems Engineering (MBSE) tools and methodologies to support system definition, interface management, verification, or test activities. Proven experience planning, coordinating, and executing verification and validation activities, including laboratory, HWIL, field, and flight-test environments where applicable. Experience translating system requirements, technical capabilities, interfaces, and constraints into executable test plans, procedures, verification methods, traceability, acceptance criteria, and detailed test reports. Experienceidentifying integration risks, managing defects and technical action items, performing root-cause analysis, and driving test readiness and issue resolution to closure. Strong coordination and communication skills, with experience managing technical interfaces across Government customers, subcontractors, industry partners, and internal development teams, and preparing technical briefings, reports, and customer presentations.Compensation & Benefits Competitive salary based on experience and market conditions Signing bonus Company equity Relocationassistance Hybrid 9/80 schedule with every other Friday off Paid time off and flexible work schedules Comprehensive medical, dental, and vision insurance Life and short- and long-term disability insurance 401(k) retirement benefits with company contributionWork Environment Hybrid role with on-site workrequired in Huntsville, Alabama. Flexible 9/80 work schedule supporting every other Friday off. Hands-on laboratory, integration, and test work with periodic field or Government-sponsored test activities as required by the program.About SecmationSecmation develops AI-enabled software, embedded cybersecurity, secure RF systems, and advanced communications technologies for the U.S. defense community. Our mission is to deliver next-generation secure technologies for Electronic Warfare, autonomous systems, and critical defense applications.Small company. Big mission. Real engineering.Equal Opportunity EmployerSecmation is proud to be an equal opportunity employer. We are committed to building a diverse and inclusive team. All qualified applicants will be considered for employment without regard to any status protected by applicable law.The salary range represents a general guideline. Secmation considers the scope and responsibilities of the position, as well as a candidate's experience, education, skills, work location, current market conditions, and other bona fide factors when determining compensation.