• Infrastructure and Cloud Engineer - NBS

    Nelnet (Richmond, VA)
    …IP Tables, Bash Scripting, Perl, Postfix). 3. Demonstrated skills in Networking ( switching / routing , Firewalls, DHCP, DNS, WAFs and Load Balancers). 4. Strong ... analytical, judgement and problem-solving skills. 5. Strong oral and written communication skills. 6. Strong interpersonal skills to interact with technical and non-technical clients. 7. Strong documentation and time management skills. 8. Self-motivated. 9.… more
    Nelnet (12/03/25)
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  • Senior Network Engineer

    ManTech (Chantilly, VA)
    …system architecture. + Remaining well versed in a multi-vendor environment for layer 2/3 switching and routing , firewalls, SAN directors, as well as virtual and ... cloud-hosted networking technologies. + Installing, configuring, and maintaining entire physical networking infrastructure including firewalls and core/distribution/access switches and routers. + Utilizing network monitoring applications for traffic, access,… more
    ManTech (12/03/25)
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  • Tier 2 Technician

    Leidos (Chantilly, VA)
    …(CAT5, SM/MM Fiber, Serial cables, SFP). + Configure and troubleshoot layer 2 switching (VLAN's, Port Security, Thin Configs). + Knowledge of Cisco IOS, Juniper ... Protocol (TCP/IP) and Open Systems Interconnection (OSI) model. + Working knowledge of basic routing fundamentals. + Ability to travel 25 percent of the time. + In… more
    Leidos (12/03/25)
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  • F5 Network Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    …and be willing to obtain a CI Poly Job Description: - Systems administration of routing and switching systems connected to local and wide area networks. - ... Provide support for implementation, troubleshooting and maintenance of IT systems and management of system infrastructure and any processes related to these systems - Provide support to IT systems including day-to-day operations, monitoring and problem… more
    Arena Technical Resources, LLC (11/29/25)
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  • Senior Systems Engineer - Enterprise IT…

    M. C. Dean (Vienna, VA)
    …trust architecture (eg, Zscaler) implementation, as well as working experience with network routing , switching , and firewall configuration is a plus + Working ... knowledge of endpoint security (eg, Defender, Trend Micro), SIEM (eg, Splunk, Sentinel), vulnerability scanning (eg, Tenable Nessus/Security Center), and other systems and security management tools **General:** + Demonstrated time management and organization… more
    M. C. Dean (11/28/25)
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  • Network Engineer 5

    M. C. Dean (Chantilly, VA)
    …Division's inventory system + Documents network information including of all switching and routing equipment, connected or soon-to-be-connected IP-addressable ... devices, and all cabling interconnects + Provides expert support services necessary to augment network engineering staff + Assists with day to day network maintenance to include installation, configuration, operation, and troubleshooting of switched networks… more
    M. C. Dean (11/28/25)
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  • Network Administrator 3 -Tyson's

    M. C. Dean (Vienna, VA)
    …CISCO IOS, Windows Server, and Microsoft SQL. + Experience in the use of routing protocols and switching technologies, LAN/WAN medias and protocols. + Ability to ... plan and organize work and interact with technical and non-technical personnel translating user requirements into responsive applications. + Demonstrated detailed knowledge of IA concepts and requirements. + Experience working independently and with… more
    M. C. Dean (11/26/25)
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  • Senior Systems Engineer - Cybersecurity

    M. C. Dean (Vienna, VA)
    …specific network equipment (eg Cisco, Palo Alto, Juniper) and working experience with routing , switching , and firewall configuration is a plus; **General:** + ... Demonstrated time management and organization skills while working in a fast-paced, multidiscipline team environment; + Strong analytical and problem-solving skills; + Strong communication (oral and written) skills; + Proficiency with workflow and lifecycle… more
    M. C. Dean (11/26/25)
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  • System Admin/Engr II

    Amazon (Herndon, VA)
    …of Amazon services using tools and technologies, including TCP/IP, DNS, DHCP, routing , switching , LAN/WAN, traceroute commands, iPerf, dig commands, and/or cURL. ... Execute migrations of existing on-premise environments to AWS Cloud, grow clients' existing cloud architecture by onboarding them onto new AWS services and provide maintenance support by providing complex technical assistance. Analyze product and reports on… more
    Amazon (11/26/25)
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  • Software Developer 3

    Oracle (Richmond, VA)
    …provide direction and mentor others + Understanding fundamental network protocols (Layer2 switching , Layer3 Routing , TCP/IP, DNS, etc..) Disclaimer: **Certain US ... customer or client-facing roles may be required to comply with applicable requirements, such as immunization and occupational health mandates.** **Range and benefit information provided in this posting are specific to the stated locations only** US: Hiring… more
    Oracle (11/25/25)
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