> Markdown version of [/jobs/ext/3959100-software-engineer-sr-e3](https://www.wearedevelopers.com/jobs/ext/3959100-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:** Norristown, PA, United States - **Experience:** Expert - **Salary:** $110,300.0 - $204,900.0 - **Contract:** Permanent contract - **Skills:** C (Programming Language), Java (Programming Language), Agile Methodology, Confluence, JIRA, Automation of Tests, C Sharp (Programming Language), C++ (Programming Language), Continuous Integration, Software Design Patterns, Python (Programming Language), Object-Oriented Software Development, Ruby, Software Engineering, Scripting, Gitlab - **Published:** October 27, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-engineer-sr-e3-king-of-prussia-pa--fd7383e0-00f9-499c-a7f5-8d6148ec4921 ## About the Role Software Engineering, Software Engineering, Software Development, Identify Issues, Communication Skills, Team Player, Python Programming/Scripting Language, Object Oriented Programming (OOP) Languages, Ruby, C Programming Language, 2 years of professional experience in software engineering and/or software development Demonstrated ability and desire to be self-sufficient and apply critical thinking skills to troubleshoot complex hardware and software issues Demostrated ability to communicate effectively working on small collaborative teams Demonstrated proficiency in software engineering using modern object oriented languages such as C/C++, C#, Java, Python, Ruby Familiarity with Agile Development processes and tools such Jira, Confluence and GitLab No clearance required to start. Ability to obtain and maintain a Top Secret clearance Desired Skills Test Automation Experience Familiarity with Infrastructure as Code and CI/CD Familiarity with Common Software Design Patterns and Architectures Familiarity with Object Oriented programming paradym C/C++ coding experience with the ablity to read and understand C/C++ code