Cybersecurity Network Infrastructure Specialist

1 week ago


O'Fallon, Missouri, United States Leidos Full time

The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract is seeking a skilled Cybersecurity Network Infrastructure Specialist to join our team in Scott AFB, IL.

This role directly supports the DISA-provided capabilities and services. As a Cybersecurity Network Infrastructure Specialist, you will perform installation oversight, configuration, testing, monitoring, and servicing of network equipment for projects supporting the Department of Defense networks.

Main Responsibilities:

  • Perform customer coordination, Initial Test and Acceptance (IT&A), execution of all reporting functions, and complete data input associated with new network equipment and service activations to ensure they are implemented in accordance with Defense Information Systems Agency (DISA) standards.
  • Configure and maintain DISA's out-of-band management network consisting of Cisco and Juniper devices using baseline configurations customized for each site.
  • Upgrade software on Cisco and Juniper devices.
  • Create/update project planning documentation to support selecting and creating IP addressing schemes (subnet selection, equipment management IP selection) as well as assigning ports on out-of-band management nodes.
  • Perform systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional requirements in support of customer resources.
  • Ensure all information (POC, location, & interface) is correct and formatted properly according to provided requirements.
  • Verify correct points of contact (POC) for each location through which the circuit traverses.
  • Engage with the DISA project managers and/or customers to resolve issues with incomplete or unclear requirements.
  • Reach out to stakeholders and facilitate approvals as necessary to ensure continual forward progress of the service request.

Required Qualifications:

  • Proficient knowledge of various network hardware equipment specifications, configuration, and testing processes, and industry specifications.
  • Network engineering, problem management, and performance management experience.
  • Knowledge of networking architecture, evaluating, and recommending new technologies to enhance current capabilities and performing needs assessments.
  • Knowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers.
  • Experience with network services (BGP, OSPF, DHCP, DNS, TCP/IP, WAN, VPN, VLAN, VRF, etc.) and network appliances (e.g., routers, load balancers, domain name servers, firewalls).
  • Knowledge of configuring, activating, testing, and analyzing network systems.
  • Ability to work in a team environment, but self-driven to complete assignments while continually developing proficiencies in processes.
  • Strong written and verbal communications, team building, and collaboration skills.
  • An active Secret security clearance is required.
  • DoD-8570 IAT Level 2 baseline certification (Security+ CE or equivalent).

Pay Range: $55,250 - $99,875. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.



  • O'Fallon, Missouri, United States Leidos Full time

    Job DescriptionWe are seeking a skilled Cybersecurity Voice Network Specialist to join our team at Leidos in Scott AFB, IL. This role will be responsible for maintaining and supporting a large, complex IP voice and video communications infrastructure.Main ResponsibilitiesMaintain and troubleshoot the IP voice and video communications infrastructure to ensure...


  • O'Fallon, Missouri, United States T-Rex Solutions Full time

    About T-Rex SolutionsT-Rex Solutions LLC is a leading business combining innovative IT capabilities and enabling skills to provide industry-leading solutions to the federal government. Our focus is on cloud infrastructure, cybersecurity, and large systems integration.We are part of the winning team awarded a program to support the United States...


  • O'Fallon, Missouri, United States Leidos Full time

    Leidos is a leading provider of innovative technology solutions for the U.S. Department of Defense (DoD) and national security organizations.We are seeking an experienced Network Infrastructure Specialist to join our team in Scott AFB, IL.About the RoleThe successful candidate will be responsible for performing installation oversight, configuration, testing,...


  • O'Fallon, Missouri, United States T-Rex Solutions Full time

    About the RoleThis is a Cloud Network Infrastructure Engineer position at T-Rex Solutions LLC, a leading business providing innovative solutions to the federal government.


  • O'Fallon, Missouri, United States Leidos Full time

    About the PositionWe are seeking a highly skilled Network Infrastructure Engineer to join our team in Scott AFB, IL. This is an exciting opportunity to work on projects supporting the Department of Defense networks.Job DescriptionThe successful candidate will perform installation oversight, configuration, testing, monitoring, and servicing of network...


  • O'Fallon, Missouri, United States Leidos Full time

    About LeidosLeidos is a leading provider of IT solutions to the Department of Defense (DoD) and national security organizations. Our customer, the Defense Information Systems Agency (DISA), delivers critical infrastructure services that support the DoD's mission.Job SummaryWe are seeking an Implementations Network Engineer II to join our team at Scott AFB,...


  • O'Fallon, Missouri, United States Progression, Inc. Full time

    About Progression Inc.We are a leading business combining innovative Next Generation IT (NGIT) capabilities and enabling skills to provide industry-leading solutions to the federal government with a focus on cloud infrastructure and engineering, cybersecurity and large systems integration.Job OverviewOur team will develop and deliver enterprise architecture...


  • O'Fallon, Missouri, United States Leidos Full time

    Job SummaryWe are seeking a highly motivated Network Operations Specialist to join our team at Leidos.About the JobThe selected candidate will be responsible for monitoring and troubleshooting network issues, ensuring seamless communication across the Defense Information System Network (DISN) services. This role requires strong technical skills and attention...


  • O'Fallon, Missouri, United States Leidos Full time

    Leidos seeks highly skilled individuals to join our team as Telecommunications Network Support Specialists. Located in Scott Air Force Base, Illinois, this role is ideal for those with a passion for telecommunications and a drive to provide world-class support.


  • O'Fallon, Missouri, United States Leidos Full time

    **Job Overview**We are seeking a highly skilled Network Technician to join our Unified Capabilities team at Leidos. This role will be based in Scott AFB, IL. Primary Responsibilities:Create and resolve non-routine trouble tickets using the Service Now platform.Notify necessary points of contact based on essential or heightened awareness networks, circuits,...


  • O'Fallon, Missouri, United States Leidos Full time

    Job OverviewWe are seeking a highly skilled Technical Support Specialist to join our team at Leidos. This individual will be responsible for providing technical support and maintenance for our network operations center.Job ResponsibilitiesConduct investigations into network incidents and provide timely resolutions.Monitor and maintain DoD-wide voice/video...


  • O'Fallon, Missouri, United States Leidos Full time

    Leidos is seeking an experienced Senior Voice Network Engineer to support the sustainment, maintenance, and problem management of secure, reliable, and uninterrupted availability of Defense Information Systems Agency (DISA) Voice Services. The successful candidate will perform engineering tasks to maintain a large, complex, and highly resilient IP voice and...


  • O'Fallon, Missouri, United States T-Rex Solutions Full time

    T-Rex Solutions OverviewT-Rex Solutions, LLC is a leading provider of data-centric mission services to the Federal government, specializing in cloud and infrastructure solutions. Established in 1999, we have built a reputation for delivering high-quality products and customer service.We are seeking an experienced Cloud Network Engineer to join our growing...


  • O'Fallon, Missouri, United States Leidos Full time

    We are seeking a highly skilled IT Telecommunications Specialist to join our team at Leidos, supporting the Defense Information System Network (DISN) services for the Department of Defense (DoD).The DISA 24x7 Network Operations Center (NOC) on Scott Air Force Base in Illinois requires professionals with expertise in network and telecommunications system...


  • O'Fallon, Missouri, United States Leidos Full time

    **Job Overview**Leidos is seeking a highly skilled Cyber Network Engineer IV to join our team. This position will provide installation oversight, configuration, testing, monitoring, and servicing of network equipment for projects supporting the Department of Defense networks.Primary Responsibilities:Perform customer coordination, Initial Test and Acceptance...


  • O'Fallon, Missouri, United States Leidos Full time

    Leidos has a career opening for a Network Controller at a secure US government facility.About the JobThe Network Operations Center (NOC) team provides 24x7 global DoD information network (DoDIN) operations and incident management support. Our customer, Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the...


  • O'Fallon, Missouri, United States Leidos Full time

    The Defense Information Systems Agency (DISA) is a leading provider of defense information system network services to the Department of Defense (DoD) and other government organizations.We are currently seeking a highly skilled Telecommunications Operations and Management Specialist to join our team at Leidos. This position will be based in Scott Air Force...


  • O'Fallon, Missouri, United States T-Rex Solutions Full time

    Job OverviewWe are seeking a skilled Cloud DevSecOps Engineer to join our team at T-Rex Solutions LLC. As a mid-tier business, we provide data-centric mission services to the Federal government.About UsT-Rex Solutions has established itself as a leader in providing high-quality and innovative solutions in Cloud and Infrastructure Services, Cyber Security,...


  • O'Fallon, Missouri, United States T-Rex Solutions Full time

    About T-Rex Solutions">T-Rex Solutions LLC is a leading business combining innovative Next Generation IT capabilities and enabling skills to provide industry-leading solutions to the federal government with a focus on cloud infrastructure and engineering, cybersecurity, and large systems integration.Job Overview">The team will develop and deliver enterprise...


  • O'Fallon, Missouri, United States Leidos Full time

    At Leidos, we are a leading provider of technology and engineering solutions that support the defense, intelligence, healthcare, and energy industries. Our customer, Defense Information Systems Agency (DISA), plays a critical role in providing Defense Information System Network (DISN) services to the Department of Defense (DoD) and other government...