• Test Engineer III

    Mercury Systems (Chantilly, VA)
    Req. Number 25-553 Job Description Job Summary: Mercury Systems is seeking a Test Engineer III to lead test efforts in developing and executing server ... servers and secure software product lines. + Design and implement robust test procedures that meet military standards (eg, MIL-STD-810, DO-461, DO-167, DO-178C,… more
    Mercury Systems (12/03/25)
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  • Systems Integration and Test

    Solvarus (Chantilly, VA)
    …them and to quickly aid the people who need it. As a Systems Integration and Test Engineer you will be a member of the Verification, Validation and Transition ... + Lead or support the execution of those VV&T activities (eg Test events, transitions, Milestone Readiness Events). + Prepare reports describing the results,… more
    Solvarus (11/02/25)
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  • Test & Evaluation Analyst III

    Skylla Engineering Ltd. (Stafford, VA)
    …and thrive in a fast-paced environment, Skylla Engineering is the place for you. The Test Engineer III will provide test , evaluation planning, ... and provide feedback to the Customer on T&E related matters to include Test Plans, Test Procedures, TEMPs, and other documentation that impact T&E. + Observe the… more
    Skylla Engineering Ltd. (12/19/25)
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  • Systems Engineer III

    First Division Consulting (Stafford, VA)
    …to read below and join the FirstDiv team! First Division Consulting is hiring a Systems Engineer III to fill a hybrid role located in Stafford, VA. The Systems ... Engineer III (SE III ) will...Engineer III (SE III ) will support Marine Corps...Manage all aspects of Systems Engineering (SE) and some Test & Evaluation (T&E) policies and procedures of the… more
    First Division Consulting (11/18/25)
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  • Cses III - Firewall Engineer

    CACI International (Springfield, VA)
    CSES III - Firewall Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular ... TCS has an exciting and challenging opportunity available for a CSES III - Firewall Engineer supporting an Intelligence Community customer's wide-area… more
    CACI International (12/18/25)
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  • Systems Engineer III

    Belcan (Chantilly, VA)
    Systems Engineer III Job Number: 361552 Category: Systems Engineering Description: Job Title: Systems Engineer III Location: Chantilly, VA Zip Code: ... Shift/ 6:30am Keywords: #SystemsengineerJobs #EngineeringJobs #AerospaceJobs JOB DESCRIPTION A Systems Engineer in the Defense and Aerospace Industry plays a crucial… more
    Belcan (12/18/25)
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  • Data Engineer III

    Amazon (Arlington, VA)
    …MULTIPLE POSITIONS AVAILABLE Employer: AMAZON.COM SERVICES LLC Offered Position: Data Engineer III Job Location: Arlington, Virginia Job Number: AMZ9081156 ... Position Responsibilities: Design, develop, implement, test , document, and operate large-scale, high-volume, high-performance data structures for business… more
    Amazon (12/16/25)
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  • Engineer III

    Three Saints Bay (Crystal City, VA)
    ** Engineer III (4317)** Location **Crystal City, VA** Job Code **4317** \# of Openings **1** Apply Now ... LLC, and a Federal Government Contractor industry leader, is seeking an ** Engineer III ** **Position Responsibilities:** + Provide systems engineering support for… more
    Three Saints Bay (11/01/25)
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  • Network Engineer III

    William C Brown Inc (Springfield, VA)
    Network Engineer III EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without ... characteristic protected by law. Description WCBinc is looking for a Network Engineer to provide support for LAN/WAN by developing network support processes,… more
    William C Brown Inc (12/01/25)
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  • Applications Engineer III

    NANA Regional Corporation (Washington, DC)
    Suvi is looking for an Applications Engineer III **(PIPELINE POSITION)** to work in Washington, DC. We are seeking a talented Mid Developer to join our team. As ... Definition of Done. + eForms Development: + Design, develop, test , and maintain eForms using tools such as Adobe...Enhance existing eForms to meet 508 compliance standards. + Test eForms for 508compliance using screen readers (eg, JAWS).… more
    NANA Regional Corporation (10/29/25)
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  • Network Engineer III

    Noblis (Chantilly, VA)
    Responsibilities As a **Network Engineer III ,** you will provide expert leadership in designing, implementing, and managing sophisticated network systems and ... topologies, and networking hardware in classified domains. + Design, deploy, test , certify, and patch critical network components including switches, firewalls, and… more
    Noblis (12/23/25)
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  • DevOps Engineer III

    Noblis (Chantilly, VA)
    Responsibilities As a **DevOps Engineer III ** , you will be responsible for the design, deployment, testing, certification, operations, patching, and addressing ... forensic and investigative ecosystem. **Job Responsibilities:** + Design, deploy, test , certify, and operate DevSecOps infrastructure tools + Address… more
    Noblis (12/20/25)
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  • Traveling Commissioning Engineer III

    Quality Technology Services, LLC (Manassas, VA)
    The **Mechanical Commissioning Engineer L3** is responsible for but not limited to Level 3, 4 and 5 commissioning of base building systems and components of a Data ... improvement. . Create and/or review detailed commissioning documentation, including test procedures, reports, and as-built documentation, ensuring accuracy and… more
    Quality Technology Services, LLC (12/03/25)
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  • Traveling Commissioning Engineer III

    Quality Technology Services, LLC (Manassas, VA)
    The **Electrical Commissioning Engineer L3** is responsible for but not limited to Level 3, 4 and 5 commissioning of base building systems and components of a Data ... improvement. * Create and/or review detailed commissioning documentation, including test procedures, reports, and as-built documentation, ensuring accuracy and… more
    Quality Technology Services, LLC (11/27/25)
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  • Software Engineer III

    Noblis (Chantilly, VA)
    …a forensic and investigative ecosystem. **Job Responsibilities** + Design, develop, test , and manage application development projects in support of IT infrastructure ... Git and other source control management systems + Unit testing and test -driven development \#FundedPosition Desired Qualifications + Active TS/SCI with CI Polygraph… more
    Noblis (12/23/25)
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  • Software Engineer III - Backend

    Walmart (Reston, VA)
    …monitoring, performance, scalability, availability, security, and alerting for software test , integration, and production environments. + Plan and implement a ... availability bottlenecks for the application. + Develop, maintain, and enhance automated test cases and deployment procedures. + Follow coding and design best… more
    Walmart (11/07/25)
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  • Engineer III

    Orbis, Inc. (Washington, DC)
    …Desired: 7 or more years of experience in the overall design, test , qualification, and production of naval shipboard electrical and/or propulsion equipment. ... Knowledge and experience with Submarines and/or the Naval Nuclear Propulsion Program. Experience with large electrical machines and/or power electronics. Degree Requirements: + Required: Master's level degree in any technical or engineering discipline. + Must… more
    Orbis, Inc. (12/24/25)
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  • Information System Security Eng (ISSE) III

    Global Resource Solutions (Arlington, VA)
    …orientated, and talented individual for the position of Information System Security Engineer III . Job Description: Summary: The Information System Security ... Engineer (ISSE) III , is primarily responsible for conducting information system security...alarms/rules and summary reports + Write and execute cybersecurity test procedures for validation of control compliance + Monitor/analyze… more
    Global Resource Solutions (12/19/25)
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  • Nissc III Pursuit

    SAIC (Washington, DC)
    …Systems Engineer + Systems Integration Engineer + Technical Writer/Editor + Test Engineer + Training Analyst When threats are among us, the nation needs ... (NCMC) - INTEGRATED TACTICAL WARNING/ATTACK ASSESSMENT (NCMC-ITW/AA) AND SPACE SUPPORT CONTRACT III (NISSC III ).** **Please note that this is contingent upon… more
    SAIC (11/06/25)
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  • Lab Manager III

    ARSIEM (Arlington, VA)
    …on every client you work with. ARSIEM is looking for an experienced Cloud Engineer with strong Red Hat Enterprise Linux (RHEL) experience to design, implement, and ... test cloud-based infrastructure and services, with a focus on...experience. + 6+ years of experience as a Cloud Engineer , Linux Systems Engineer , or similar role.… more
    ARSIEM (11/12/25)
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