• Security Manager

    Robert Half Technology (West Trenton, NJ)
    …roles and 5 years of experience implementing cloud-based solutions. * Strong knowledge of Linux and Windows Server system administration . * Proficiency in ... * Experience managing vendor relationships related to cloud and security systems . * Effective communication skills for engaging cross-functional stakeholders and… more
    Robert Half Technology (11/20/25)
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  • Professional Services Consultant - Email…

    Proofpoint (San Francisco, CA)
    … design and enterprise email environments (Exchange/M365, and G Suite) + LINUX system administration experience + Understanding of Internet protocols and ... proof of concept and implementation + Deliver product (including administrative and UI) knowledge transfer to customers and partners....822 and Sendmail + Proficiency in Directory protocols (LDAP, Windows AD, and Azure AD) + Working knowledge of… more
    Proofpoint (10/08/25)
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  • System Administrator II

    Gama-1 Technologies (Silver Spring, MD)
    …computing, IT infrastructure, or a similar technical role. + Demonstrated experience with Windows Server and/or Linux environments in an enterprise or federal ... in the design, implementation, configuration, maintenance, and optimization of complex IT systems in a remote work environment. The candidate will support enterprise… more
    Gama-1 Technologies (11/20/25)
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  • Network Engineer (Onsite)

    RTX Corporation (Largo, FL)
    …switches, deploying security solutions for DoD networks, and multi-platforms like Windows , UNIX, LINUX . + Demonstrated experience implementing computer security, ... network security and information assurance solutions for program and development systems based upon system level requirements, architecture models, and engineering… more
    RTX Corporation (11/19/25)
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  • Security Engineer

    iconectiv (Bridgewater, NJ)
    …- SIEM, HIDS and IPS knowledge are a plus + Knowledge and experience with Linux OS, Solaris OS, Windows OS, and Scripting (Python, etc.) + Knowledge and ... environments, which support number porting services for the NPAC (Number Porting Administration Center). In addition, the candidate will be responsible for securing… more
    iconectiv (10/29/25)
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  • Network Infrastructure Engineer

    Two95 International Inc. (Columbia, MO)
    …in single data center network with disaster recovery site + Windows Server, Linux , and Mac OS system administration + Solarwinds for network monitoring + ... + Day-to-day administration , monitoring, and maintenance related to routers, switches,...to routers, switches, firewalls, load balancers, packet shapers, wireless systems , and circuits. + Design, implement, and monitor network… more
    Two95 International Inc. (09/08/25)
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  • Network Tools and Lab Infrastructure Engineer

    Lockheed Martin (Uniondale, NY)
    …with security controls, security incidents, and security vulnerabilities \- Experience with Windows / Linux environment and administration \- Knowledge ... **What We're Doing:** At Lockheed Martin Rotary and Mission Systems , we're on a mission to support and partner...critical thinking \- Experienced in Information Security and System Administration \- Familiar with auditing tools, e\.g SPLUNK \-… more
    Lockheed Martin (11/20/25)
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  • Sr. Technical Account Manager

    Proofpoint (Richmond, VA)
    …of Proofpoint's integration within the customer's environment, including network, security, systems administration , and messaging management. + Develop and ... + Knowledge of Linux , SMTP, and MySQL + Working knowledge of Windows , Active Directory, and Microsoft Exchange + Very strong customer service and excellent… more
    Proofpoint (11/19/25)
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  • Security Solutions Engineer II

    Proofpoint (Scottsdale, AZ)
    …or network security. General experience in corporate networking, technical support, system administration ( Windows , Unix/ Linux ), or network security. + ... two main responsibilities, overseeing and managing the email security systems within the managed services scope, and helping develop...Python and work with PIP. + Comfortable working with Linux via terminal, using SSH, Git etc. General experience… more
    Proofpoint (10/17/25)
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  • System Administrator

    Gromelski & Associates, Inc. (Manassas, VA)
    …switches, routers, databases, thin-clients, and domain servers. Background working in a Linux and Microsoft Windows environment. Maintains smooth operation of ... Job Description:_** Provides technical and operational support for the operation and administration of the site and lab computing infrastructure including… more
    Gromelski & Associates, Inc. (08/23/25)
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