Network Engineer

Select Source Solutions • Seattle, WA

4d • Onsite

About The Position

The Network Infrastructure Engineer supports the day-to-day operation, security, reliability, and performance of an enterprise network in an on-site environment. This hands-on role covers LAN infrastructure, switching, firewalls, DNS/DDI, authentication services, VPN connectivity, subnetting, network segmentation, monitoring, and physical network infrastructure. The engineer works with onsite IT personnel and customer technical staff to troubleshoot issues, coordinate infrastructure changes, support maintenance activities, and keep critical network services operating reliably.

The role involves configuring, administering, maintaining, and troubleshooting network infrastructure and services; monitoring network health; supporting equipment and cabling in telecommunications spaces; and maintaining accurate technical documentation. The position may require after-hours support for critical incidents or planned maintenance. No routine travel is required. The hourly compensation range is $56.79–$62.50, commensurate with experience and qualifications.

Requirements

• Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related technical discipline, or an equivalent combination of education and relevant professional experience.
• Hands-on experience supporting enterprise network infrastructure.
• Experience configuring, administering, and troubleshooting Cisco switches and enterprise LAN environments.
• Working experience with Fortinet FortiGate firewalls and network-security configurations.
• Experience supporting Infoblox or comparable DNS, DHCP, and IP Address Management technologies.
• Knowledge of RADIUS, LDAP, Active Directory, VPN technologies, and network authentication services.
• Strong understanding of TCP/IP, DNS, DHCP, subnetting, VLANs, routing, switching, and IP addressing.
• Experience troubleshooting network outages, connectivity issues, authentication problems, and infrastructure incidents.
• Experience using enterprise network monitoring and management tools.
• Understanding of copper and fiber-optic cabling, telecommunications closets, and physical network infrastructure.
• Ability to maintain accurate network documentation, diagrams, inventories, and configuration records.
• Strong analytical, troubleshooting, communication, and organizational skills.
• Ability to work effectively with onsite IT staff, network engineers, and customer technical personnel.
• Ability and willingness to work in an on-site environment.
• Ability to obtain and maintain a U.S. Government security clearance.

Nice To Haves

• Experience with Juniper switching technologies.
• Experience with Aruba switching technologies.
• Experience supporting N-Wave or comparable wide-area network connectivity.
• Cisco CCNA or comparable Cisco certification.
• CompTIA Network+.
• Fortinet certification.
• Juniper or Aruba certification.
• Experience supporting network infrastructure within federal government, government contracting, or other regulated environments.

Responsibilities

• Configure, administer, maintain, and troubleshoot enterprise network infrastructure.
• Support LAN connectivity, switching, routing, VLANs, subnetting, and network services.
• Configure and maintain Cisco switches, including VLAN administration, switch-port assignments, and performance troubleshooting; support Juniper and Aruba switching technologies as required.
• Administer Fortinet FortiGate firewalls, including policies, access controls, configuration changes, and connectivity troubleshooting.
• Manage and support Infoblox DNS, DHCP, and IP Address Management services.
• Support RADIUS authentication and related access-control technologies, as well as LDAP, Active Directory, and other enterprise authentication services.
• Support network connectivity across environments, including subnetting, routing, network segmentation, and IP addressing.
• Configure, maintain, and troubleshoot VPN services for secure remote connectivity.
• Monitor network availability, performance, and infrastructure health using enterprise network-management and monitoring tools.
• Troubleshoot outages, connectivity problems, authentication failures, DNS issues, routing problems, and other network incidents.
• Support installation, testing, labeling, and documentation of copper and fiber network cabling.
• Install and support network equipment in telecommunications and communications closets.
• Maintain network diagrams, IP address records, firewall and switch configurations, cabling documentation, and infrastructure inventories.
• Coordinate maintenance activities, configuration changes, upgrades, and troubleshooting with onsite IT personnel and customer technical staff.
• Provide technical support during critical network activities and scheduled maintenance windows.
• Communicate incident status, troubleshooting results, technical risks, and recommended resolutions to stakeholders.
• Participate in after-hours support when required for critical incidents or planned maintenance.
• Perform other related network engineering responsibilities as assigned.

What This Job Offers

• Job Type: Full-time