• Fannie Mae (Reston, VA)
    …maintaining hardware, technology, and/or processes. *THE IMPACT YOU WILL MAKE* The * Principal Engineer (Director IC), Exchange Platform (APIs, Files, AI ... relevant programming languages * Product Testing including testing and evaluating software , usability testing, UAT, and using relevant product testing technology *… more
    DirectEmployers Association (10/17/25)
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  • Fannie Mae (Reston, VA)
    software , and applications. *THE IMPACT YOU WILL MAKE* The Platform Engineering, Principal Engineer (Director IC) role will offer you the flexibility to make ... etc. *Tools* * Skilled in using UNIX * Experience using APIs for developing or programming software * Skilled in Java * Skilled in using REST API * Skilled in Python… more
    DirectEmployers Association (08/22/25)
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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 **Reston, VA.** This is an onsite position. The ... ** Principal Software Engineer ** will work with Network and Systems Engineers to design, build, monitor, maintain, and upgrade all program networks to ensure… more
    ManTech (09/10/25)
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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. ... will be dedicated full-time to development and enhancement support for existing software and systems solutions and the development of new solutions as required.… more
    ManTech (09/11/25)
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  • Sr. Principal Cyber Software

    Northrop Grumman (Chantilly, VA)
    …work of your career. **Northrop Grumman Mission Systems** is seeking an experienced **Senior Principal Cyber Software Engineer ** to join our team supporting ... located at a Mission Systems Sector site in Chantilly, VA. As a Senior Software Engineer on the Mobile Development team, you will be responsible for the design,… more
    Northrop Grumman (10/21/25)
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  • Principal Software Systems…

    RTX Corporation (Sterling, VA)
    …security clearance **Security Clearance:** DoD Clearance: Secret Collins Aerospace is looking for a Principal Software Systems Engineer - IPT Lead with a ... and military customers. https://www.collinsaerospace.com/what-we-do/industries/military-and-defense/navigation/airborne-products/attitude-and-heading-reference-system/athena-gs111r-uas-autopilot-adahrs-pnt-hub As a Software Systems Engineer -… more
    RTX Corporation (10/29/25)
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  • Sr Principal Engineer

    Northrop Grumman (Chantilly, VA)
    …you interested in defining possible? **Northrop Grumman Mission Systems** is seeking a **Sr Principal Software Engineer ** to join our team! This position ... global security environments, Northrop Grumman brings informed insights and software -secure technology to enable strategic planning. We're looking for innovators… more
    Northrop Grumman (10/07/25)
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  • Principal /Sr. Principal Cyber…

    Northrop Grumman (Chantilly, VA)
    …best work of your career. We are looking for you to join our team as a ** Principal ** **Cyber Software Test Engineer ** and **Sr. Principal ** **Cyber ... in a timely manner and make recommendations **Basic Qualifications for a Principal Cyber Software Test Engineer :** + **Candidate must currently have an… more
    Northrop Grumman (11/01/25)
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  • Principal , Software Engineer

    Walmart (Herndon, VA)
    **Position Summary ** **What you'll do ** As a Principal Engineer , you will play an important role in shaping the technical direction and running Walmart Global ... and members. **About the Global Technology Network Engineering and Operations Team:** The Principal Network Engineer will report to the Senior Director of… more
    Walmart (10/02/25)
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  • Principal Software Engineer

    Microsoft Corporation (Reston, VA)
    …Reliability teams strive to improve reliability fundamentals via software engineering operational improvement, preferring long-lasting platform improvements ... + Awareness of, and ability to reason about, modern distributed software design patterns and cloud systems architecture, including microservices, containers,… more
    Microsoft Corporation (10/31/25)
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  • Principal Cobol/ Pega Software

    CareFirst (Reston, VA)
    …and adheres to the plan. Leads stakeholder and product owner meetings to define software requirements and creates highly complex systems. Acts as a mentor to junior ... of existing applications. Compile, assess, and report data results from software testing and analysis. Experience building cloud ready applications. Design and… more
    CareFirst (10/22/25)
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  • Software Engineer

    Actalent (Manassas, VA)
    Job Title: Principal Software Engineer Job Description We are seeking a highly skilled Principal Software Engineer to join our team supporting ... and DoD programs. This role focuses on designing and integrating high-performance software components in distributed environments using Java and C/C++ on Linux… more
    Actalent (10/23/25)
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  • Principal /Sr Principal

    Northrop Grumman (Dulles, VA)
    …only part of history, they're making history. We have an opening for an Embedded Software Engineer to join our team of qualified, diverse individuals in the ... Space Systems organization developing space flight software platforms for NSS space programs. The individual we...all levels. This position can be filled as a Principal (level 3) or Sr Principal (level… more
    Northrop Grumman (09/30/25)
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  • Sr. Full Stack Developer CMPRS

    SAIC (Ashburn, VA)
    **Description** **SAIC** is currently seeking a motivated, career and customer-oriented Principal Software Engineer to join our team in Ashburn, VA to begin ... week in Ashburn, VA.** **Responsibilities:** + Active member of the agile software development team participating in all Program Increment and Sprint ceremonies. +… more
    SAIC (09/20/25)
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  • Systems Test Engineer / Principal

    Northrop Grumman (Chantilly, VA)
    …**Northrop Grumman Mission Systems** is seeking a candidate to fill a **Systems Test Engineer / Principal Systems Test Engineer ** position. This position ... test kits. This requisition may be filled at either the **Systems** **Test Engineer ** or ** Principal ** **Systems** **Test Engineer ** level. **Basic… more
    Northrop Grumman (10/23/25)
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  • Principal /Sr. Principal Systems…

    Northrop Grumman (Dulles, VA)
    …technical briefings to customers and mission partners **\#NOVASPACE** **Basic Qualifications:** + ** Principal Engineer Level (T3)** - BS in STEM - Science, ... Engineer for the role of Ground Segment Systems Engineer for a Ground/Mission Software program. This...related area and 3 years of experience. + **Senior Principal Engineer Level (T4)** - BS in… more
    Northrop Grumman (10/17/25)
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  • Principal /Sr Principal Fault…

    Northrop Grumman (Dulles, VA)
    …only part of history, they're making history. Northrop Grumman is hiring a qualified Principal /Sr. Principal Systems Engineer to support a National Security ... to either technical or nontechnical audiences is required. **Basic Qualifications:** + ** Principal Systems Engineer ** - Bachelors of Science degree in technical… more
    Northrop Grumman (09/19/25)
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  • Principal /Sr. Principal Electronics…

    Northrop Grumman (Chantilly, VA)
    …Signals Intelligence Mission Solutions (SMS) Department. This role can be filled as a Principal or Sr. Principal Electrical Engineer . ** Principal ... in basic Surface Mount Technology (SMT) soldering and assembly skills. **Senior Principal Electronics Engineer ** **Basic Qualifications:** + Must be a US… more
    Northrop Grumman (10/16/25)
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  • Space Principal /Sr. Principal

    Northrop Grumman (Dulles, VA)
    …status and technical performance reviews, analyses and reports **Basic Qualifications:** + ** Principal Systems Engineer ** - Bachelors of Science degree in ... to assist in the formulation of avionics hardware and software system design, definition of concept of operations, and...3+ years of experience; or a PhD + **Sr. Principal Systems Engineer ** - Bachelors of Science… more
    Northrop Grumman (10/31/25)
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  • Principal Cyber Engineer

    Nightwing (Sterling, VA)
    …in the intelligence community, defense, civil, and commercial markets. ** Principal Cyber Engineer ** Nightwing provides technically advanced full-spectrum ... challenging, meaningful work that is vital to our national security, apply today! ** Principal Cyber Engineer ** Cyber Offense and Defense Experts (CODEX) is… more
    Nightwing (09/12/25)
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