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  • Senior Security Engineer Zermount is looking for a talented Security Engineer who will provide technical hands‑on services and compliance support to protect computer systems, networks, and other digital assets in various environments (on premises, cloud, and hybrid). The... 
    Senior
    Remote work

    Zermount, Inc.

    Arlington, VA
    1 day ago
  • $150k - $175k

     ...The Sr. System Security Engineer will be essential in safeguarding the client's critical systems and infrastructure by spearheading the design, implementation, and management of comprehensive security strategies. In this role, the Sr. System Security Engineer will be... 
    Senior
    Contract work
    Work at office

    ASM Research, An Accenture Federal Services Company

    Washington DC
    4 days ago
  •  ...Information Systems Security Engineer (ISSE) - Sr Category: Cyber Security Main location: United States, District of Columbia, Washington Alternate Location(s): United States, Alabama, Huntsville United States, West Virginia, Clarksburg Position... 
    Senior
    Full time
    Contract work
    Local area

    CGI

    Washington DC
    4 days ago
  •  ...Senior Strategic Consultant - DOS Training Security Engineering Dexis is a dynamic professional services firm dedicated to partnering with government and community leaders both in the U.S. and internationally to achieve critical social outcomes in a rapidly changing... 
    Senior
    Contract work
    Work at office

    Dexis Consulting Group

    Washington DC
    1 day ago
  • Adaptivestack Technologies is seeking a proactive and detail-oriented Sr. Network Information Security Engineer to support federal enterprise cybersecurity operations. This role will be responsible for securing network infrastructure for the National Institutes of Health... 
    Senior

    Adaptivestack Technologies Inc.

    Bethesda, MD
    18 hours ago
  • $168k - $230k

    Sr. Security Software Engineer, Applied Computing (Starshield) Washington, DC SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the... 
    Senior
    Permanent employment
    Temporary work
    Immediate start
    Flexible hours
    Weekend work

    SPACE EXPLORATION TECHNOLOGIES CORP

    Washington DC
    1 day ago
  • $153k - $207k

     ...and honest with each other. Come and join our dynamic team! JOB DESCRIPTION Seeking a highly motivated and driven Sr. Information Assurance Security Engineer (IASE) (Air Systems) to work Onsite supporting enterprise IT for our War-fighter customer who upholds America\'s... 
    Senior
    Contract work
    Temporary work
    Work at office
    Local area

    Rollout Systems, LLC

    Arlington, VA
    4 days ago
  • A cybersecurity firm is seeking a Senior Cybersecurity Engineer with an active TS/SCI clearance. The role includes designing and maintaining secure solutions aligned with NSA standards. Candidates should have over 7 years of experience in cybersecurity, particularly with... 
    Senior

    IT Veterans

    Washington DC
    4 days ago
  • A federal IT services company is seeking a proactive Sr. Network Information Security Engineer to secure the network infrastructure for the NIH. Responsibilities include implementing security solutions, monitoring systems, and conducting vulnerability assessments. Candidates... 
    Senior

    Adaptivestack Technologies Inc.

    Bethesda, MD
    18 hours ago
  • $99k - $225k

    A leading cybersecurity firm in Washington, D.C. is seeking a Senior Network Engineer to design and implement advanced network security solutions. You will manage Gigamon Deep Observability Pipeline and lead risk assessments. Required qualifications include extensive network... 
    Senior

    Phase2 Technology

    Washington DC
    4 days ago
  • A leading provider of workforce solutions is seeking a Senior Cybersecurity Engineer, specializing in NSA-compliant secure communication solutions. The successful candidate will design and implement secure architectures, ensure compliance with CSfC requirements, and support... 
    Senior

    System One

    Alexandria, VA
    18 hours ago
  • A leading IT solutions provider is seeking a Microsoft 365 Security Engineer in Washington, DC. This role focuses on designing and managing security solutions for Microsoft 365 environments and requires a Bachelor’s degree in IT or a related field, alongside ten years of... 
    Senior

    Talascend, LLC

    Washington DC
    18 hours ago
  • A leading government contractor is seeking a Network Security Engineer in Arlington, VA. This role requires a Secret security clearance and 5-7 years of expertise in network security engineering. Responsibilities include monitoring LAN connectivity, managing VPN solutions... 
    Senior
    For contractors

    Koniag Government Services, LLC

    Arlington, VA
    1 day ago
  •  ...with over 5 years of experience in software and hardware reverse engineering. The ideal candidate will possess expert-level knowledge of...  ...in Computer Science or related field is required. An existing security clearance or the ability to obtain one is preferred. This role... 
    Senior

    Maania Consultancy Services

    Washington DC
    4 days ago
  • $97.9k - $163.1k

     ...complexity, we enable our clients to operate with resilience, grow with confidence, and proactively manage to secure success. Work You'll Do The Senior Security Engineer will perform non-standard engineering analysis, development and design work that requires considerable... 
    Senior
    Work at office
    Local area

    PowerToFly

    Washington DC
    18 hours ago
  • $115.5k

    Sr. Cyber Range Engineer needed for a Direct Hire opportunity with SOC's client to work onsite in Annapolis Junction, MD. Candidate must have...  ...TCP/IP skills and troubleshooting. Background in MS, AD, Security Onion, and VMWare Demonstrated understanding of Red Hat Enterprise... 
    Senior
    Flexible hours

    SOC LLC

    Bethesda, MD
    2 days ago
  •  ...one resource. If you are a problem-solving people-person, apply today! Position Overview We are seeking an experienced Senior Security Engineer to work in Washington DC to join our team supporting an Enterprise Security Operations Center (ESOC) and Computer Security... 
    Senior
    For contractors
    Work at office
    Local area

    DirectViz Solutions, LLC

    Washington DC
    2 days ago
  •  ...solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy,...  ...are at the forefront. Job Summary The Senior-Level Security Engineer & Operations professional provides advanced cybersecurity, compliance... 
    Senior
    Full time
    Contract work
    Temporary work
    Local area
    Remote work

    ARETUM Holdings LLC

    Bethesda, MD
    18 hours ago
  • Senior SaaS Security Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is... 
    Senior
    Full time
    Work at office
    Work from home
    Monday to Thursday

    Visual Lease

    Arlington, VA
    3 days ago
  •  ...MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA or Quantico, VA. Responsibilities include, but are not limited to: Define and implement cybersecurity... 
    Senior
    Work at office
    Local area

    ManTech

    Washington DC
    1 day ago
  • $112k - $179k

     ...our customer onsite in Washington D.C. Design and implement secure technical architectures, including firewalls, encryption, and...  ...Mentor junior ISSOs/ISSEs and provide security expertise to engineering, operations, and leadership teams. Analyze systems to identify... 
    Senior
    Contract work
    Work experience placement
    Shift work

    Peraton

    Washington DC
    2 days ago
  • $88.2k - $173.5k

     ...Information Systems Security Engineer (ISSE) - Senior Category: Cyber Security Main location: United States, Virginia, Arlington Position ID: J0925-0432 Employment Type: Full Time Position Description: CGI Federal has an exciting opportunity for an... 
    Senior
    Full time
    Local area

    CGI Technologies and Solutions, Inc.

    Arlington, VA
    3 days ago
  • A leading defense contractor is seeking a highly motivated Senior Information Assurance Security Engineer (IASE) to support enterprise IT efforts. This role requires significant experience in cybersecurity for air systems. Candidates will be responsible for ensuring compliance... 
    Senior
    For contractors

    Rollout Systems, LLC

    Arlington, VA
    18 hours ago
  •  ...Description Tyto Athene is seeking a Senior Information Systems Security Engineer (ISSE) to support a federal customer on an Information Assurance program. Along with closing technical gaps, achieving ATO's on new systems and engineering required security configurations... 
    Senior
    Full time
    Work at office
    Worldwide

    Tyto Athene, LLC

    Washington DC
    3 days ago
  •  ...ECS is seeking a Sr. Cyber Operations SME/PM/Engineer/Analyst (TS/SCI) to work in our Arlington, VA office and/or other locations as directed by...  ...operational planning elements Review and recommend changes to security classification guides and related documents Author... 
    Senior
    Work at office

    ECS Limited

    Arlington, VA
    3 days ago
  • 4253 Senior Systems Security Engineer 4253 | US Citizen Job Description: OVERVIEW: We are seeking for a Sr. Systems Security Engineer to assist the customer with engineering and administration tasks. The ideal candidate will be comfortable engaging with... 
    Senior

    Procession Systems

    Washington DC
    4 days ago
  • $107.9k - $195.05k

     ...decisions using trusted data at scale. Leidos Digital Modernization sector is seeking an experienced Senior Information System Security Engineer to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD... 
    Senior
    Interim role
    Local area
    Immediate start

    Leidos

    Arlington, VA
    1 day ago
  •  ...Responsibilities Architectural Design: Design, test, and implement secure, state-of-the-art security software and hardware (e.g.,...  ...Leadership: Mentor security professionals and collaborate with IT/engineering teams to foster a security-conscious culture. Technical... 
    Senior

    True Zero Technologies

    Washington DC
    2 days ago
  • A growing government contractor is seeking a Senior Security Engineer to support a Security Operations Center in Washington, DC. The role involves managing security documentation, conducting risk assessments, and ensuring compliance with government standards. Candidates... 
    Senior
    For contractors

    DirectViz Solutions, LLC

    Washington DC
    2 days ago
  • $135k - $180k

     ...Responsibilities & Qualifications We are seeking an Information System Security Engineer (ISSE) to join our team supporting a government customer. REQUIRED QUALIFICATIONS Experience Minimum of 8 years of relevant experience , or an equivalent combination of... 
    Senior
    Full time
    Contract work
    Temporary work
    Work at office
    Local area
    Remote work
    Monday to Friday
    Day shift

    TekSynap

    Washington DC
    3 days ago