• LINUX Sr Principal

    General Dynamics Information Technology (Washington, DC)
    …will help ensure today is safe and tomorrow is smarter. Our work depends on a skilled Linux Senior Principal Systems Engineer joining our team to bring ... Citizenship Required:** Yes **Job Description:** Job Description ** Senior Principal Systems Engineer - Linux ** Design, deploy, integrate and maintain… more
    General Dynamics Information Technology (09/23/25)
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  • Principal / Sr Principal

    Northrop Grumman (Dulles, VA)
    …and in collaborative team settings across all levels. This position can be filled as a Principal (level 3) or Sr Principal (level 4) depending on experience ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (09/30/25)
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  • Sr Principal Windows Systems

    Northrop Grumman (Dulles, VA)
    …Grumman Chief Information and Digital Office (CIDO) organization is seeking an experienced ** Sr Principal Windows Systems Administrator** to join its dynamic ... Linux , Cisco) + Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF,...Windows AD, LDAP, VMWare, and knowledge of SAN storage systems . + Linux Operating System experience and/or… more
    Northrop Grumman (10/31/25)
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  • Sr ./ Principal DevOps Engineer (TS)…

    Northrop Grumman (Dulles, VA)
    …US citizenship with current or active Top-Secret clearance required at time of application ** Sr . Principal DevOps Engineer** + Bachelor's degree in a STEM field ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...tools, and tool chains + A strong background in Linux operating system + Kubernetes cluster experience from both… more
    Northrop Grumman (10/23/25)
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  • Principal / Sr . Principal

    Northrop Grumman (Chantilly, VA)
    …work of your career. We are looking for you to join our team as a ** Principal ** **Cyber Software Test Engineer** and ** Sr . Principal ** **Cyber Software Test ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...to prioritize bugs until resolution **Basic Qualifications for a Sr . Principal Cyber Software Test Engineer:** +… more
    Northrop Grumman (11/01/25)
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  • Sr Principal Cybersecurity…

    Northrop Grumman (Chantilly, VA)
    …including but not limited to Standard Operating Procedures and VISIO diagrams. ** Senior Principal Cyber Systems Engineer Basic Qualifications:** + ... team of engineers, system administrators, and operators as a Sr . Principal Cyber Systems Engineer...including COTS integration, and capacity analysis. + Experience with Linux and Windows operating systems + Previous… more
    Northrop Grumman (10/02/25)
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  • Sr Principal Engineer Software

    Northrop Grumman (Chantilly, VA)
    …work of your career. Are you interested in defining possible? **Northrop Grumman Mission Systems ** is seeking a ** Sr Principal Software Engineer** to join ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (10/07/25)
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  • Sr . Principal Cyber Software…

    Northrop Grumman (Chantilly, VA)
    …of your career. **Northrop Grumman Mission Systems ** is seeking an experienced ** Senior Principal Cyber Software Engineer** to join our team supporting a ... Systems Sector site in Chantilly, VA. As a Senior Software Engineer on the Mobile Development team, you...knowledge of cryptography best practices. + Deep knowledge of Android/ Linux system internals. + Experience with Android/ Linux more
    Northrop Grumman (10/21/25)
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  • Principal OR Senior Principal

    Northrop Grumman (Washington, DC)
    …they're making history. Northrop Grumman Aeronautics Systems is looking to add a ** Principal OR Senior Principal Field Service Engineer - Network and ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...Service Engineer - Network and Communications level or the Senior Principal Field Service Engineer - Network… more
    Northrop Grumman (09/17/25)
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  • Lead Senior Principal Cloud…

    General Dynamics Information Technology (Fairfax, VA)
    …**Job Description:** Job Description Transform technology into opportunity as **a Lead Senior Principal Cloud Developer** at GDIT. Shape what's next for ... At GDIT, people are our differentiator. As a **Lead Senior Principal Cloud Developer,** you will help...cloud solutions + Maintains the integrity and security of systems + Maintains all documentations + Supports and develops… more
    General Dynamics Information Technology (10/23/25)
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  • Senior Principal Cyber Security…

    ManTech (Chantilly, VA)
    **ManTech** seeks a motivated, career and customer-oriented ** Senior Principal Cyber Security Engineer** to join our team in the **Chantilly, VA.** ... Information and Event Management (SIEM) platforms, and/or Splunk + Knowledge of Linux systems administration, general operating system security practices, TCP/IP… more
    ManTech (10/24/25)
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  • Senior Principal Software Engineer…

    RTX Corporation (Fulton, MD)
    …wholly owned subsidiary of Collins Aerospace/RTX and is currently seeking a ** Senior Principal Software Engineer** who is enthusiastic, hardworking, and ... driving the strategy, design, architecture, and development of new software systems and products utilizing these technologies. Solipsys is an industry leader… more
    RTX Corporation (10/24/25)
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  • Senior Principal Software Engineer…

    RTX Corporation (Fulton, MD)
    …subsidiary of Raytheon Technologies (RTX). We are currently looking for a talented ** Senior Principal Software Engineering,** **who is experienced in either C++ ... and/or Java, with an aptitude to work on software-intense distributed systems ** . The successful candidate will execute in direct technical leadership roles on… more
    RTX Corporation (10/02/25)
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  • Senior Principal DevOps Lead…

    RTX Corporation (Fulton, MD)
    …global market. Collins Aerospace is currently seeking a self-motivated and talented ** Senior Principal ** **DevOps Lead Engineer** who is seeking a challenging ... technology tools such as Docker and Kubernetes + Scripting experience in Linux environment (eg Perl, Python, Bash) + Supporting software solutions in virtualized… more
    RTX Corporation (10/17/25)
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  • Systems Administrator Principal

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Create and plan migration process to support applications hosted by the Windows/ Linux systems . + Complete system security checklists, patches, upgrades, ... how agencies operate. At GDIT, people are our differentiator. As a Systems Administrator Senior you will help ensure today is safe and tomorrow is smarter.… more
    General Dynamics Information Technology (09/30/25)
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  • Principal Cloud Developer with Node.JS…

    General Dynamics Information Technology (Fairfax, VA)
    Principal Level:** 5+ years of related experience with **AWS** cloud computing + ** Senior Principal Level:** 8+ years of related experience with **AWS** cloud ... related experience **Job Description:** Transform technology into opportunity as **a Principal Cloud Developer** at GDIT. Shape what's next for mission-critical… more
    General Dynamics Information Technology (10/26/25)
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  • Principal Software Engineer

    ManTech (Reston, VA)
    …position. The ** Principal Software Engineer** will work with Network and Systems Engineers to design, build, monitor, maintain, and upgrade all program networks ... ManTech seeks a motivated, career and customer-oriented ** Principal Software Engineer** to join our team in...limited to:** + Designing, developing, programming, and modifying software, systems , applications, and tools, both existing and new in… more
    ManTech (09/10/25)
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  • Principal Engineer, Developer Productivity

    General Motors (Washington, DC)
    …matter most in their domain. **The Role** We are looking for a Principal Engineer with an extensive engineering background, experience using a variety of developer ... guidance. **What** **You'll** **Do (Responsibilities)** + Using your software and systems engineering skills to contribute code, perform code reviews, and create… more
    General Motors (10/31/25)
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  • Principal Software Engineer

    ManTech (Reston, VA)
    **ManTech** seeks a motivated, career and customer-oriented ** Principal Software Engineer** to join our team in the **Reston or Chantilly, VA** location. This is an ... to development and enhancement support for existing software and systems solutions and the development of new solutions as...as Jira, Git, Gradle/Maven and experience developing software in Linux environments + Strong experience with the full data… more
    ManTech (09/11/25)
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  • Full Stack Developer, Assoc. Principal

    BigBear.ai (Ashburn, VA)
    Overview BigBear.ai is seeking a Senior Principal Full Stack Developer to a multi-year contract to support the ongoing modernization and maintenance of the CBP ... information systems , using JAVA/JEE. What you will do + Design...EJBS + Web services (SOAP and Restful) + Unix/ Linux + JEE Server experience (Spring boot, Tomcat, WebLogic,… more
    BigBear.ai (10/11/25)
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