> Markdown version of [/jobs/ext/2722200-principal-computer-scientist](https://www.wearedevelopers.com/jobs/ext/2722200-principal-computer-scientist). 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 Computer Scientist - **Company:** ONE STOP COLLECTIBLE CORP - **Location:** Fort Meade, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** HTML, Java (Programming Language), JavaScript (Programming Language), PHP (Programming Language), Apache HTTP Server, Apache Tomcat, Unix, Cascading Style Sheets (CSS), Databases, Common Object Request Broker Architecture, Oracle Data Guard, Software Debugging, Web Development, Domain Name System (DNS), Perl (Programming Language), Internet Protocol, Java GUIs, Java Message Service (JMS), Java Servlet, Junit, Lightweight Directory Access Protocols (LDAP), Simple Mail Transfer Protocols, Apache Maven, Model View Controller (MVC), Object-Oriented Software Development, Oracle Databases, Performance Tuning, Red Hat Enterprise Linux, Recovery Manager (RMAN), Shell Script, Singleton Pattern, Software Engineering, Solaris (Operating System), Web Applications, Extensible Markup Language (XML), Transport Layer Security, File Transfer Protocol (FTP), System Availability, Backend, Information Technology, Extreme Programming, Build Tools - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/principal-computer-scientist-vor-technology-4231123 ## About the Role *All Candidates must have a TS/SCI clearance with a Full Scope Polygraph * Twelve (12) years' software development experience (Bachelor's Degree in Computer Science can substitute for 2 years' experience). * Minimum of 9 years' experience with designing, coding, testing, and debugging software to run under Microsoft Windows (XP or later) or UNIX (Solaris 8 or later, Redhat LINUX) Operating System. * Understanding of JAVA (1.4, 1.5, 1.6 and 1.7) technologies to include JAVA stand-alone programs, applets, servlets, web programming, back-end database repository, OOD, debugging, testing and documentation. * OOD common patterns (Singleton, Iterator, Observer, Factory, Memento, etc.). * Experience developing web apps and deploying WAR files. * Web presentation experience (HTML, CSS, JavaScript, CGI, Java GUI frameworks (Swing, AWT, MVC). JUNIT tests * Experience with build tools (Ant, Maven), XML, Java Message Service (JMS), and CORBA for distributed application development. * Apache and Tomcat administration (performance tuning, high availability). * Oracle 11g/12c experience (including OEM, DataGuard and RMAN). * Familiarity with internet protocols (SMTP, HTTP/HTTPS, LDAP, SFTP/SSH, SSL, NFS, NTP, DNS/NIS). * Shell scripting (sh/ksh/csh/bash), Perl, and PHP. Clearance Requirement: Active TS/SCI with Full Scope clearance * US citizenship is required. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Old tools, new tricks](https://www.wearedevelopers.com/videos/1916-old-tools-new-tricks) - [Grappling With Clunky Old Software? Start by Understanding What’s Inside!](https://www.wearedevelopers.com/videos/1189-grappling-with-clunky-old-software-start-by-understanding-what-s-inside) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Java Basics](https://www.wearedevelopers.com/magazine/122-java-basics)