F5 Network Engineer

Peraton

Washington (District of Columbia)

On-site

USD 110,000 - 170,000

Full time

4 days ago

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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

Required 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

Peraton is seeking anF5 Engineerto join our team. In this role, you will be responsible for the implementation, configuration, maintenance, troubleshooting, and optimization of F5 technologies supporting our network infrastructure. You will work closely with network and infrastructure teams to ensure reliable and secure application delivery across the Customer’s Data Centers and MAN/WAN sites. The ideal candidate is a detail‑oriented engineer with strong troubleshooting skills, the ability to manage multiple priorities, and a commitment to maintaining the performance, availability, and security of the network environment.

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 customiRules (TCL-based)to handle:
- Advanced traffic steering
- URI redirects
- Header manipulation
- Specialized security workarounds