• Principal Endpoint Security Systems…

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity a **Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) ... **Job Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber...or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for… more
    Leidos (11/28/25)
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  • Sepio Security Engineer

    Leidos (Arlington, VA)
    **Description** We are seeking a highly skilled and motivated Sepio Engineer to join our cybersecurity team. In this pivotal role, you will be responsible for ... designing, implementing, and maintaining security measures, with a specific focus on leveraging the Sepio platform for asset visibility and rogue device mitigation.… more
    Leidos (11/25/25)
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  • Endpoint Security Engineer Lead…

    Leidos (Arlington, VA)
    **Description** Leidos has an immediate need for a lead Endpoint Security Engineer for a customer on a highly visible and strategic Cybersecurity Task Order. The ... Security Engineer will need to be a... Security Engineer will need to be a self-starter with excellent...or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for… more
    Leidos (11/25/25)
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  • Network Security Engineer

    SpaceX (Cape Canaveral, FL)
    Network Security Engineer Cape Canaveral, FL Apply...and TLS based VPNs + Web application firewalls + Email security + Logging and alerting with ... this possible, with the ultimate goal of enabling human life on Mars. NETWORK SECURITY ENGINEER SpaceX is looking for a Network Security Engineer with… more
    SpaceX (10/30/25)
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  • Senior Security Engineer

    Justworks (New York, NY)
    Senior Security Engineer (Enterprise) New York, New... such as laptops security , mobile device security , browser management, email security ... in. Who You Are Justworks is looking for an experienced, hands-on Senior Security Engineer who can help drive the company's Security Architecture &… more
    Justworks (10/25/25)
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  • Lead Data Loss Prevention (DLP) Security

    CoStar Realty Information, Inc. (Arlington, VA)
    Lead Data Loss Prevention (DLP) Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and ... we need more dedicated engineers. We are hiring a **Lead DLP Engineer ** to design, scale, and operationalize Microsoft Purview-based protections across endpoints and… more
    CoStar Realty Information, Inc. (11/04/25)
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  • Senior SaaS Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior SaaS Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... edge in real estate. We're hiring a **Senior SaaS Security Engineer ** to help us evolve our...of your disability. You can request reasonable accommodations by calling ### or by sending an email to ###@costargroup.com… more
    CoStar Realty Information, Inc. (11/04/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports a ... professionals with strong technical expertise and a desire to shape the security infrastructure of the future. **Responsibilities include but are not limited to:**… more
    ManTech (12/13/25)
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  • Senior Information Security Engineer

    Eliassen Group (Aberdeen Proving Ground, MD)
    **Senior Information Security Engineer ** **Aberdeen Proving Ground, MD** **Type:** Contract-to-Hire **Category:** Security **Industry:** Government ... Our client is seeking a highly skilled Information Systems Engineer (ISE) to serve as the primary security...Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information… more
    Eliassen Group (12/05/25)
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  • Staff Security Research Engineer

    Proofpoint (Portland, OR)
    …we're a leader in next-generation cybersecurity. Protection Starts with People. **Staff Security Research Engineer ** **Your day-to-day** + Design and develop ... and compliance solutions mitigating their most critical risks across email , the cloud, social media, and the web. We...capabilities **What you bring to the team** As a Security Research Engineer on Proofpoint's Threat Research… more
    Proofpoint (09/18/25)
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