Network Engineer

Leidos

2d•$73,450 - $132,775•Remote

About The Position

Leidos is seeking a Network Engineer to support a Federal Civil customer. This remote position supports secure, mission-critical enterprise networks across geographically distributed environments, with preference for candidates within driving distance of the Washington, DC area. The role involves engineering, operating, maintaining, troubleshooting, and modernizing networks across on-premises and hybrid cloud infrastructure. Working alongside the Senior Network Engineer, the Network Engineer collaborates with engineering, cybersecurity, service desk, vendors, and service providers to maintain network availability, performance, and security. The role also contributes to documentation, configuration management, incident and change processes, and continuous service improvement. Candidates must be U.S. citizens capable of obtaining and maintaining a Public Trust clearance before starting.

Requirements

Bachelor's degree and 4 years of experience; additional years of experience may be accepted in lieu of a degree.
Hands-on experience designing, implementing, administering, and troubleshooting complex enterprise network infrastructure in production environments.
Strong working knowledge and hands-on experience configuring and troubleshooting enterprise routing and switching technologies, including BGP, OSPF, VLANs, VRFs, and network redundancy/failover.
Hands-on experience supporting and administering Cisco and/or Juniper enterprise networking platforms in multi-vendor environments, such as Juniper EX/QFX and Junos OS, and Cisco ISR and IOS devices.
Hands-on experience configuring, maintaining, and troubleshooting enterprise network security infrastructure, including Cisco ASA, Firepower and FMC, access control policies, and remote-access VPN solutions such as Cisco AnyConnect/Secure Client.
Demonstrated ability to troubleshoot multi-system network issues, assist with root cause analysis, and implement approved corrective actions.
Experience executing network infrastructure changes, device upgrades, and security remediation in production environments following established change control procedures.
Experience maintaining accurate network diagrams, technical documentation, configuration records, and standard operating procedures.
Strong interpersonal and communication skills, including experience working with senior engineers, cross-functional teams, vendors, and ISPs to resolve operational issues.
Familiarity or hands-on experience supporting AWS network infrastructure and hybrid cloud connectivity, such as VPCs, Direct Connect, Transit Gateways, and load balancers.
Experience administering enterprise wireless infrastructure and Network Access Control solutions, such as Cisco Identity Services Engine (ISE).
Exposure to virtual computing platforms such as VMware/vSphere as they relate to network connectivity, as well as Cisco CUCM/UC voice solutions.
Active Cisco Certified Network Associate (CCNA) certification.
Ability to obtain a DoD 8140 / IAT Level II baseline certification, such as Security+ CE, CySA+, CCNA-Security, GSEC, or SSCP.
Must be a U.S. citizen capable of obtaining and maintaining a Public Trust clearance prior to starting.

Nice To Haves

Cisco Certified CCNP or Juniper JNCIP-ENT.
Experience with Cisco Meraki wireless solutions.
Experience with Cisco ISE.
Experience with Dell switches and OS10.
Experience with ServiceNow.
Security+ CE certification.
Candidates within driving distance of the Washington, DC area are preferred.

Responsibilities

Serve as a Tier 2/3 technical resource for operational and engineering issues affecting mission-critical enterprise infrastructure, escalating complex architectural challenges to the Senior Network Engineer as needed.
Assist in planning, deploying, configuring, and maintaining network infrastructure across geographically distributed, multi-vendor environments.
Analyze and troubleshoot network issues involving multiple systems and implement approved corrective actions to maintain reliability, performance, and security.
Configure, maintain, and troubleshoot enterprise routing and switching infrastructure, including BGP, OSPF, VLANs, VRFs, routing redundancy, and network failover.
Administer and support network security solutions, including Cisco Firepower, Firepower Management Center, ASA, firewall rule updates, access controls, and security hardening.
Implement, monitor, and sustain secure site-to-site and remote-access VPN solutions, including Cisco Secure Client/AnyConnect and connectivity with external partners and vendors.
Support hybrid cloud network connectivity between on-premises infrastructure and AWS services, including VPCs, Direct Connect, Transit Gateway, and load balancing.
Administer enterprise wireless networking and network access control technologies, including Cisco Identity Services Engine (ISE).
Support network infrastructure upgrades, modernization initiatives, lifecycle replacements, and security remediation under senior engineering guidance.
Monitor network performance, availability, and capacity; gather metrics and implement approved improvements to service delivery and operational resilience.
Participate in incident investigations and root cause analysis by gathering diagnostic data and executing corrective and preventive tasks.
Collaborate with engineering and cybersecurity teams, vendors, and service providers to troubleshoot issues, coordinate maintenance windows, and implement technical tasks.
Maintain network diagrams, configuration records, technical implementation plans, and standard operating procedures.
Execute incident, problem, change, and service request tickets with accurate technical work, thorough documentation, and adherence to SLAs.
Partner with the Senior Network Engineer to test and implement network automation scripts, configuration templates, and process improvements.