> Markdown version of [/jobs/ext/2011165-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/2011165-principal-software-engineer). 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). --- # Principal Software Engineer - **Company:** KBR Inc - **Location:** Huntsville, AL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** C (Programming Language), Java (Programming Language), Agile Methodology, JIRA, C++ (Programming Language), Databases, Computer Literacy, Continuous Integration, Linux, DevOps, Python (Programming Language), MATLAB, Microsoft Office, Scrum Methodology, Software Engineering, Software Systems, Systems Integration, Windows Software Trace Preprocessor, Delivery Pipeline, Gitlab, Git, SC Clearance, Kubernetes, Information Technology, Modeling and Simulation, Api Design, Docker, Programming Languages - **Published:** August 10, 2026 - **Apply:** https://kbr.wd5.myworkdayjobs.com/KBR_Careers/job/Huntsville-Alabama/Principal-Software-Engineer_R2128051 ## About the Role We are seeking an experienced Software Engineer to lead the architecture, development, implementation and optimization of software solutions to be integrated into a new Modeling and Simulation Lab. This individual will research and analyze new technology insertion with existing software systems, to include implementing and verifying communication capability between devices, databases, and services. Candidates require strong analytical and problem-solving skills to collaborate with multiple "in-house" and GOTS simulation and tool developers. Strong interpersonal skills will be required as you will interface directly with the Government customer conducting regular software demonstrations. Up to 15% travel for meetings and test events will be required. The ideal candidate should be a problem-solver, resourceful, independently motivated and detail oriented, willing to travel occasionally, and work in the office when required. The position requires good time management, communication and computer skills. Relocation: Candidate must be a resident of the North Alabama area or able to relocate to the Huntsville-North Alabama area., * Possess a Bachelor of Science degree in Computer Science or other STEM related fields (Engineering, Physics, Mathematics, CIS, etc.) with 10+ years of experience or a master's degree in computer science or related STEM fields with 5+ years of experience. * Experience with the latest software development management processes and tools (Agile methods, SCRUM boards, Jira, etc.) * Experience integrating COTS/GOTS products in a software laboratory environment. Analyzing and developing APIs to enhance interoperability amongst products. * Familiarity with Army Integrated Air and Missile Defense Systems. * Working knowledge of programming languages such as Java, C, C++, MATLAB, and/or Python. * Experience with GIT, Gitlab, or DevOps (or similar) required. * Candidate must be a US Citizen. * Possess or be able to obtain and maintain a Secret Clearance. * Able to travel up to 15% of the time. * Able to work on site when required., * Experience with missile defense systems. * Experience in physics-based models and simulations. * Linux and Windows software development environments experience. * Ability to develop clear and concise software capabilities demonstrations and briefings and present to government customers. * Experience in software design, development, documentation, and testing of modelling and simulation software. * Familiarity with development and integration of containerized products (e.g. Docker Compose, Kubernetes, etc.) * Experience with SecDevOps and Continuous Integration/Continuous Development pipelines to include resolution of cyber vulnerabilities, bugs and technical issues. * Direct experience as a software development lead with expertise in managing challenging execution schedules. * Excellent written and verbal communication skills, strong social skills, and ability to build consensus among peers while building solid relationships with team members, leadership, and customers. * Proficiency in Microsoft Office applications with strong presentation skills and capable of briefing audiences large or small of varying technical knowledge. * Enjoy working in a dynamic, responsive, and collaborative environment, and dedicated to the success of our government customers. ## Description KBR's Missile, Aviation, and Ground Systems (MAGS) division delivers mission engineering solutions for critical U.S. Army programs, specializing in aviation and ground systems, integrated air and missile defense, and threat and target systems. As a trusted partner of the U.S. Department of Defense, MAGS provides innovative, technology-driven solutions to enhance national security. With a global presence and a strong ethical framework, KBR ensures secure, effective, and mission-ready capabilities worldwide. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Grappling With Clunky Old Software? 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