• Staff Software Engineer - Java, AWS, TCS…

    Zscaler (Mclean, VA)
    …S3, RDS, DynamoDB, and messaging systems like Kafka or SQS + US citizenship with active US Top Secret /SCI security clearance **What Will Make You Stand ... efficient, resilient, and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and...join our IT Cloud Engineering team. **This role requires Top Secret Security Clearance, which must be… more
    Zscaler (01/14/26)
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  • High Speed Guard Engineer

    System One (Springfield, VA)
    …Location: Springfield, VA Type: Contract To Hire Contractor Work Model: Onsite Security Clearance: Active TS /SCI High Speed Guard Engineer to support the ... products. + Engineer , design, and implement HSG rulesets. Required Qualifications: + Active TS /SCI Clearance + Ability to successfully pass and maintain a… more
    System One (12/26/25)
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  • Machine Learning Engineer

    William C Brown Inc (Springfield, VA)
    …Required Location Springfield Full-Time/Part-Time Full-Time Exempt/Non-Exempt Exempt Security Clearance Requirements Active TS / SCI Clearance. This position is ... safe and tomorrow is smarter. Our work depends on TS /SCI cleared Machine Learning Engineer joining our team to support our intelligence customer inSpringfield,… more
    William C Brown Inc (12/15/25)
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  • Lead Information Security Engineer

    Lumen (Herndon, VA)
    …Skills: + Required (education/experience/skills/competencies): + Candidate must be a US Citizen with an active TOP SECRET clearance Preferred: + 5-7 years in ... committed to teamwork, trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to thrive and deliver… more
    Lumen (01/09/26)
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  • Operations Research Analyst/ Engineer

    JHNA (Alexandria, VA)
    …and proposals. Required Qualifications: + Candidate must be a US Citizen with an active Top Secret /SCI Clearance. + Education: Bachelors Degree from an ... Time Overview: JHNA is currently seeking a talented Senior Operations Research Analyst/ Engineer to support our OUSW government customer in Alexandria, VA. This… more
    JHNA (12/05/25)
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  • Solution Train Engineer

    SAIC (Chantilly, VA)
    …years or more experience. Relevant experience to be substituted in lieu of degree. + Active Top Secret /SCI clearance with Polygraph. + Proven experience with ... **Description** SAIC is seeking a **Solution Train Engineer ** to support SAIC's Prime Program, Landmark AOS in Chantilly, VA. Landmark AOS is a large SETA program,… more
    SAIC (11/06/25)
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  • Systems Engineer (Aoco)

    Noblis (Chantilly, VA)
    …and team to integrate tactical and national capabilities. Required Qualifications + Active Top Secret /SCI clearance with Counterintelligence (CI) Polygraph. ... is seeking an experienced All-Domain Overhead Cooperative Operations (AOCO) Systems Engineer to support our government client on-site in Chantilly, VA.… more
    Noblis (12/17/25)
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  • Staff Site Reliability Engineer - Federal

    Zscaler (VA)
    …levels + Possession of Information Assurance Technician (IAT) Level 2 certification + Active Top Secret security clearance \#LI-Onsite #LI-JM1 Zscaler's ... with purpose. **What We're Looking for (Minimum Qualifications)** + US Citizenship and an active Secret Security Clearance, with the ability to work from a SCIF… more
    Zscaler (12/05/25)
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  • Systems Administrator II Generalist Sr (Windows…

    V2X (Springfield, VA)
    …in Springfield, VA . The position is required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to obtain and maintain a ... Senior Systems Administrator II Generalist - Windows Server - active TS /SCI clearance to support our government...Clearance Requirements: The position requires US Citizenship and an active DoD Top Secret with… more
    V2X (11/15/25)
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  • Federal Incident Response Lead (Principal…

    Zscaler (Mclean, VA)
    …We're Looking for (Minimum Qualifications)** + **US Citizenship and an active US Secret Security Clearance ( Top Secret preferred), with a willingness to ... be more agile, efficient, resilient, and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by… more
    Zscaler (01/11/26)
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