> Markdown version of [/jobs/ext/2720243-software-engineer-stf-e4](https://www.wearedevelopers.com/jobs/ext/2720243-software-engineer-stf-e4). 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 Stf - E4 - **Company:** Lockheed Martin - **Location:** King of Prussia, PA, United States - **Salary:** $135,700.0 - $251,900.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Clean Code Principles, Application Programming Interfaces (APIs), Agile Methodology, Automation of Tests, Code Coverage, Github, Satcom, Software Engineering, Test Case, Web Applications, Web Application Frameworks, Data Processing, Postman, ReactJS, Spring-boot, Cypress (Programming Language), Backend, Gitlab, Computer Equipment, AngularJS, Information Technology, Playwright, Front End Software Development, Devsecops, Docker - **Published:** September 4, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3377271574&tx=UT5248TYV&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Professional experience in front and backend software engineering * Familiarity with DevSecOps process, tools (Gitlab, Github), and frameworks (Docker and Kubernetes). * US Citizenship required. Final secret clearance required to start the role . Desired Skills * Web based app experience * Experience with AstroUx framework * Familiarity with modern backend and web frameworks like .Net Core/Spring Boot or Angular/React. * Experience with developing automated test cases using tools like Cypress and Playwright (for frontend testing) and Postman (for API validation). * Proficiency in Agile methodologies. * Familiarity with military SATCOM systems and secure communication protocols. * Strong understanding of the software development life cycle (SDLC), particularly in secure, high-performance applications. * Excellent written and verbal communication skills, with the ability to work collaboratively in a fast-paced, team environment * Bachelor's degree in Computer Science, Engineering, or a related technical field. #LMSpaceSoftwareEng ## Description * Design, develop, and test software solutions that meet customer requirements, particularly for secure military communications. * Implement high-quality, efficient, and maintainable code, ensuring comprehensive test coverage across web applications and APIs. * Collaborate with cross-functional teams, contributing to requirements creation, test case development, and automated testing efforts. Your contributions will help maintain the secure and uninterrupted communication capabilities of critical military systems. This position requires U.S. citizenship and the ability to obtain a government security clearance, as the facility requires special access. Plans, conducts, and coordinates software development activities. Designs, develops, documents, tests, and debugs software that contains logical and mathematical solutions to business/mission problems or questions in computer language for solutions by means of data processing equipment. Applies the appropriate standards, processes, procedures, and tools throughout the development life cycle. Applies knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software. Corrects program errors, prepares operating instructions, compiles documentation of program development, and analyzes system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls. 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