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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Integration/Test Engineer Sr - E3 - **Company:** Lockheed Martin - **Location:** Littleton, CO, United States - **Experience:** Expert - **Salary:** $95,900.0 - $178,100.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Artificial Intelligence, Automation of Tests, Network Analysis, Configuration Management, DSpace, LabVIEW, Real-Time Operating Systems, E2e Testing, Systems Modeling Language, System Testing, Systems Integration, Test Execution Engine, Data Management, Front End Software Development - **Published:** September 15, 2026 - **Apply:** https://www.jobmonkeyjobs.com/career/28018326/Systems-Integration-Test-Engineer-Sr-E3-Colorado-Littleton-1301 ## About the Role Experience with the following: * Integrating a technical product line and facilitating collaboration among stakeholders to drive project success * Demonstrated ability to drive technical decisions. * System integration, fault management, test and/or verification * Test planning and execution with an understanding of interdependencies * Excellent written and oral communication; proven ability to convey technical concepts to internal stakeholders and customers. * Final Secret Security Clearance to start; the ability to obtain Top Secret Clearance * Ability to travel to U.S. locations to support events as necessary. Up to 25%. Desired Skills * Degree in Electrical/Aerospace Engineering or related field. * Experience with satellite or launch-vehicle telemetry payloads. * Telemetry-specific knowledge - RF design, link budget analysis, data-format standards (e.g., CCSDS, TM/TC protocols), antenna pointing/control systems. * Test instrumentation - Spectrum analyzers, vector network analyzers, high-speed oscilloscopes, signal generators, BER testers, and data-acquisition hardware. * Software & simulation - Proficiency with HIL platforms (e.g., NI LabVIEW, dSPACE), real-time operating systems, and scripting for automated test execution. * Experience with System trade studies, CONOPS, constraints and/or system modeling * Experience with Standards compliance - Range Safety, MIL-STD-461, Safety Critical Verification processes. * Documentation & traceability - Ability to produce requirement-traceable test artifacts and maintain configuration control. * Familiarity with model-based engineering (SysML, Cameo) and Agile/SAFe execution frameworks. * Strong problem-solving and analytical skills * Customer-focused mindset and stakeholder management * Technical excellence and attention to detail * Proficient in AI prompting as it applies to this position and practice * Strategic thinking and risk-based decision making ## Description The Systems Integration/Test Engineer Sr focuses on the end-to-end integration and verification of telemetry avionics subsystems (e.g., RF transmitters, data-handling units, antenna pointing controllers, and on-board recorders) that support flight-termination and mission telemetry. You will drive package-level test planning and events, and ensure that each telemetry block reaches the required performance and safety maturity before it is incorporated into the full system. Telemetry is the "eyes and ears" of any flight-termination system. Ensuring these subsystems are rigorously tested, validated, and ready for flight safeguards mission success and national security. As the senior I&T engineer, you will directly influence the reliability and performance of the data path that informs critical abort decisions. Core Responsibilities Package Integration * Define, Document, and Test telemetry hardware (RF front-end, modulators, digital processors) with power, data, and mechanical interfaces. * Verify electrical and mechanical interface compliance (pin-outs, connector standards, mounting tolerances, EMI/EMC limits). Test Planning & Execution * Author detailed Package Test Plans and Reports that trace back to requirements * Ensure test site readiness for test execution. * Travel as necessary to support testing. Data Collection & Analysis * Capture data & analyze performance metrics * Generate Test Readiness Review (TRR) packages for each milestone. * Failure Analysis and Corrective Action execution., Plans, implements, tests, documents, and maintains solutions for the integration and testing of in-house developed and COTS/GOTS components, elements, subsystems and/or systems. Synthesizes customer contractual needs and requirements into system test solutions that acknowledge technical, schedule and cost constraints. Establishes functional and technical specifications and standards, solves hardware/software interface problems, defines input/output parameters, and ensures integration of the entire system or subsystem. Reviews, evaluates and derives requirements for testability, develops and directs preparation and execution of comprehensive test plans, procedures and schedules for complete systems and/or subsystems. Coordinates subsystem and/or system testing activities with programs and other organizations. Performs analysis of test results and prepares comprehensive subsystem and/or system level evaluation reports which verify and validate system performance. Writes discrepancy reports and performs integration regression testing to verify/validate incorporated fixes to software, components, subsystems and systems. ## Related Videos - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Let's get visual - Visual testing in your project](https://www.wearedevelopers.com/videos/540-let-s-get-visual-visual-testing-in-your-project) - [Why I Love End-2-End Tests and How To Get Them Right](https://www.wearedevelopers.com/videos/996-why-i-love-end-2-end-tests-and-how-to-get-them-right) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Measure and improve frontend performance by using test automation](https://www.wearedevelopers.com/videos/719-measure-and-improve-frontend-performance-by-using-test-automation) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Integration And E2E Testing: Are They Complementary or Interchangeable?](https://www.wearedevelopers.com/magazine/86-integration-and-e2e-testing-are-they-complementary-or-interchangeable) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)