> Markdown version of [/jobs/ext/1747607-principal-sr-principal-software-engineer-ts-sci](https://www.wearedevelopers.com/jobs/ext/1747607-principal-sr-principal-software-engineer-ts-sci). 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 / Sr. Principal Software Engineer [TS SCI] - **Company:** Northrop Grumman - **Location:** Stafford, VA, United States - **Experience:** Expert - **Salary:** $114,000.0 - $171,000.0 - **Contract:** Permanent contract - **Skills:** C (Programming Language), HTML, Java (Programming Language), JavaScript (Programming Language), Microsoft Windows, Apache Tomcat, JIRA, Bash Shell, Cascading Style Sheets (CSS), Configuration Management, Computer Programming, Relational Databases, Linux, Enterprise JavaBeans, Elasticsearch, Java Platform Enterprise Edition (J2EE), Java Database Connectivity, Java Message Service (JMS), Java Persistence API, Java Servlet, Swing (Java), WildFly (JBoss AS), Java Naming and Directory Interface, Java Native Interface, Javaserver Pages, Python (Programming Language), MySQL, Red Hat Enterprise Linux, Software Engineering, SQL Databases, Subversion, Web Applications, Web Services, Multithreading, Java Application Server, Virtual Environment, Git, AngularJS, Nessus, Front End Software Development, Nutanix, Software Coding, Restful APIs, Network Server, Software Version Control, Atlassian Bamboo, Vmware - **Published:** July 8, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9018735/principal-sr-principal-software-engineer-ts-sci ## About the Role This position is open as a dual level opportunity. We will consider candidates at a level 3 or level 4: Based on your overall experience, education, years of experience, fit to the position, and interview evaluation will determine which level you are selected for. * Level 3 bachelor's degree with 5 years of experience OR a master's and 3 years' experience OR a High School diploma / equivalent with 9 years' experience may be considered in lieu of degree * Level 4: Bachelor's degree with 8 years of experience OR a master's and 6 years' experience OR a High School diploma / equivalent with 12 years' experience may be considered in lieu of degree * Work on-site at Stafford Virginia * Programming experience with languages such as Java, C , bash, python. * Familiar with Windows and RHEL * TS/SCI clearance and ability to obtain a CI polygraph * Prior to start obtain a (IAT) level II or higher (i.e. Security +) . * Familiar with Compliance/Vulnerability Monitoring with tools such as Nessus, HBSS and ACAS, * Experience with the following technologies: Java Swing; multi-threaded and distributed Java applications; Java Web application (e.g., Tomcat) servers or Java Applications servers (e.g. JBoss and/or Wildfly are highly desired); relational databases (JDBC, SQL, and MySQL); JEE (Java Enterprise Edition) experience (JDBC, JNI, JNDI, JMS, Servlet/JSP, EJB/JPA); Web service experience (e.g., RESTFul Web services) * Knowledge of the following: Hycu backup/recovery software or other backup/recovery software; Nutanix virtual environment, or other platforms such as VMWare; Elastic Search Stack (ELK); * Web (Brower based) GUI front end development (HTML, JavaScript, CSS, Angular) * Experience with hardening Linux OS and applications to required configurations (e.g. DISA STIGs) * Configuration Management experience working with software version control tools (Jira's Bamboo, Stash, GIT, Subversion) * Risk Management Framework (RMF) * Linux and / or Windows system administration experience ## Description Perform software development and maintenance Assist with all or part of the following: requirements: application design, code development, testing, code maintenance. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [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) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [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) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [How Much Does a Software Engineer Make? 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