> Markdown version of [/jobs/ext/3288858-software-engineer-sr-e3](https://www.wearedevelopers.com/jobs/ext/3288858-software-engineer-sr-e3). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer Sr - E3 - **Company:** Lockheed Martin - **Location:** Boulder, CO, United States - **Experience:** Expert - **Salary:** $110,300.0 - $204,900.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Systems Engineering, Automation of Tests, C++ (Programming Language), Computer Engineering, Continuous Integration, Software Debugging, Linux, Field-Programmable Gate Array (FPGA), Hardware-In-The-Loop Simulation, Python (Programming Language), Regression Testing, Signal Processing, Software Engineering, Systems Integration, Test Data, Apex Code, Software Verification, Software Troubleshooting, Pytest, Information Technology, Programming Languages - **Published:** September 28, 2026 - **Apply:** https://www.careerjet.com/job/us05699ca73a066378614ce45e771eefed/eaa ## About the Role * Degree in Computer Science, Computer Engineering, Software Engineering, or equivalent combination of education, training, and experience in a related technical field * Development experience in C++, Python, or another modern programming language * Experience with software testing, debugging, or integration * Ability to obtain a Secret government clearance ## Desired Skills * Experience developing automated software test frameworks * Experience with unit, integration, functional, and regression testing * Experience with GoogleTest, pytest, or similar testing frameworks * Experience with hardware-in-the-loop or software-in-the-loop testing * Experience with CI/CD and automated regression testing * Experience with Linux * Experience with test data generation and analysis * Experience troubleshooting distributed or embedded systems * Experience with requirements-based verification * Experience with mission processing, image processing, or signal processing * Experience working with hardware/software integration * Experience with aerospace, defense, or other mission-critical systems * Active security clearance #LMSpaceSoftwareEng ## Description The Advanced Programs and Exploitation (APEX) team within Lockheed Martin Space is seeking a skilled software engineer to support the integration and verification of space-based mission processing software for OPIR data used in missile warning and defense programs. In this position, you will focus on bringing together software, hardware, algorithms, and mission processing components and ensuring that the complete system operates as intended. You will develop automated test capabilities, troubleshoot complex integration issues, and work across engineering disciplines to identify and resolve problems. The selected candidate will be responsible for: * Developing software and automated test applications in C++, Python, and other languages * Integrating mission processing software across development, simulation, and target environments * Developing automated unit, integration, functional, and regression tests * Building test frameworks and tools to verify mission processing functionality * Developing test data and test scenarios representative of operational environments * Troubleshooting software and system integration issues * Analyzing test results and identifying root causes of failures * Working closely with software, FPGA, hardware, algorithm, and systems engineers during integration * Supporting hardware-in-the-loop and software-in-the-loop testing * Supporting continuous integration and automated regression testing * Documenting test procedures, results, defects, and verification evidence * Participating in formal software verification and system qualification activities This position is located in our offices in beautiful Boulder, Colorado. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [pytest: Simple, rapid and fun testing with Python](https://www.wearedevelopers.com/videos/213-pytest-simple-rapid-and-fun-testing-with-python) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [Agents for the Sake of Happiness](https://www.wearedevelopers.com/videos/1387-agents-for-the-sake-of-happiness) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023)