F5 Network Engineer - HA & SSL/TLS Specialist

Peraton; United States; On-site; USD 80,000 - 128,000; Full time

Benefits offered by this job

Medical, Dental, Vision

401(k)

Paid time off

Parental leave

EAP

Short/Long term disability

Paid holidays

Job summary

Peraton is seeking an experienced F5 Engineer to implement, configure, and optimize F5 technologies across multi-site data centers and MAN/WAN networks. You will manage SSL offloading, iRules, and certificate lifecycles, while troubleshooting complex delivery issues and ensuring high availability.

Ideal candidates bring hands-on BIG-IP, Cisco/Juniper hands-on networking, DNS/IP infrastructure experience, and the ability to work across LAN/WAN environments.

Qualifications

• 5+ years with a Bachelor's degree or 9+ years with a HS Diploma (experience requirement).
• Hands-on experience with F5 BIG-IP LTM in complex environments.
• Experience administering Cisco routers/switches (Nexus, Catalyst, ONS, DNA Center).
• Experience with DNS and IP infrastructure in data center environments.
• Ability to troubleshoot complex application delivery issues and optimize performance.

Responsibilities

• Deploy, license, and configure F5 BIG-IP LTM hardware.
• Maintain virtual servers, pools, nodes, monitors and persistence profiles.
• Manage SSL offloading, SSL bridging, and cipher suites.
• Write, optimize and troubleshoot iRules for traffic steering and security workarounds.
• Manage SSL/TLS certificates lifecycles and renewal processes on BIG-IP devices.
• Perform deep-packet and L3-L7 diagnostics for latency, routing, and SSL issues.
• Use tools like Wireshark, tcpdump, F5 iQuery, and F5 Analytics.
• Execute TMOS upgrades, hotfixes, and backups via UCS/SCF archives.
• Design failover in HA topologies (DSC, Active/Standby).
• Use F5 iControl REST APIs for programmatic control and monitoring.
• Recommend enhancements to improve availability and performance.
• Provide network administration for campus LAN infrastructure.
• Maintain knowledge of TCP/IP, subnets, routing protocols.
• Work in LAN/WAN environments; configure routing and switching systems (Cisco).
• Participate in on-call and off-hours maintenance windows.
• Maintain IPAM and related network documentation.

Skills

US Citizenship

Agency clearance eligibility

Detail-oriented

Troubleshooting

Multiple priorities

Security compliance

LAN/WAN design

Education

Bachelor's degree

HS Diploma

Tools

F5 Load Balancers

Cisco routers & switches

Juniper MX

Infoblox DDI

Wireshark

tcpdump

F5 iQuery

F5 Analytics

F5 iControl REST APIs

Job description

Peraton is seeking an experienced F5 Engineer to implement, configure, and optimize F5 technologies across multi-site data centers and MAN/WAN networks. You will manage SSL offloading, iRules, and certificate lifecycles, while troubleshooting complex delivery issues and ensuring high availability.

Ideal candidates bring hands-on BIG-IP, Cisco/Juniper hands-on networking, DNS/IP infrastructure experience, and the ability to work across LAN/WAN environments.