Senior F5 Network Engineer — Data Center & HA

Peraton; Washington (District of Columbia); On-site; USD 110,000 - 170,000; Full time

Job summary

Peraton seeks an experienced F5 Engineer to implement, configure, maintain, troubleshoot, and optimize F5 technologies supporting our network infrastructure across data centers and MAN/WAN sites.

The candidate will work with network and infrastructure teams to ensure reliable and secure application delivery, managing multiple priorities with strong troubleshooting skills and attention to performance and security.

Qualifications

• 5 years with a Bachelor’s degree or 9 years with a HS Diploma
• 5 years of hands‑on experience in the implementation and administration of complex, multi-location, multi-vendor, converged voice/data networks in a geographically distributed environment
• Must have in-depth hands‑on experience on F5 Load Balancers in real world complex environments
• Hands‑on experience in administering Cisco routers & switches including but not limited to Nexus 9xxx, Catalyst 9000, Cisco ONS, Cisco ACI and DNA Center. Juniper MX routers and EX switches. Infoblox DDI appliances
• Good understanding of network principles and the OSI model
• Experience managing networks, internal and external DNS, and the associated IP infrastructure
• Experience working in a Data Center
• Experience administering and configuring monitoring tools for proactive alerting and trends analysis
• Experience in working with support ticketing systems, managing assigned tickets, as well as providing appropriate follow‑up
• Experience with creating and maintaining documentation
• Experience with the use of Data Center inventory management tools
• Must be a US Citizen
• Must be able to obtain and maintain the required agency clearance

Responsibilities

• Deploy, license, and configureF5 BIG-IP LTM hardware.
• Maintain Virtual servers,Pools,Nodes,Custom monitors and Persistence profiles
• ManageSSL offloading, SSL bridging, and secure cipher suite configurations.
• Author, optimize, and troubleshoot customiRulest (TCL-based)to handle: Advanced traffic steering, URI redirects, Header manipulation, Specialized security workarounds
• Manage the lifecycle ofSSL/TLS certificates, including: CSR generation, Certificate deployment, Automated renewal cycles on BIG-IP devices
• Perform deep-packet andL3-L7 diagnosticsfor: Complex application delivery issues, High latency, Routing issues, SSL handshake failures
• Utilize advanced tools such as: Wireshark, tcpdump, F5 iQuery, F5 Analytics for monitoring
• ExecuteTMOS operating system upgrades, hotfixes, and backup restorationsusing UCS/SCF configuration archives.
• Design and testfailover mechanics in High Availability (HA) topologies, including: Device Service Clustering (DSC), Active/Standby setups
• UtilizeF5 iControl REST APIsfor programmatic control and monitoring.
• Recommend enhancements to improvesystems availability and performance.
• Offer recommendations forprocedural upgrades.
• Providenetwork administration and supportfor a campus-wide area network infrastructure.
• Maintain experience with: TCP/IP protocol suite, IP subnets and masking, Routing protocols
• Work inLocal Area Network (LAN)andWide Area Network (WAN)environments.
• Design, configure, and troubleshootRouting and Switching systems.

Skills

Multi-location networks

Converged voice/data networks

Troubleshooting

Network monitoring

Documentation

Team collaboration

Security best practices

Education

Bachelor’s degree

HS Diploma

Tools

F5 BIG-IP LTM

Cisco Nexus/ Catalyst

Cisco ONS

Cisco ACI

DNA Center

Juniper MX

Infoblox DDI

Wireshark

tcpdump

F5 iQuery

F5 Analytics

iControl REST APIs

Job description

Peraton seeks an experienced F5 Engineer to implement, configure, maintain, troubleshoot, and optimize F5 technologies supporting our network infrastructure across data centers and MAN/WAN sites.

The candidate will work with network and infrastructure teams to ensure reliable and secure application delivery, managing multiple priorities with strong troubleshooting skills and attention to performance and security.