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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # F5 Network Engineer - **Company:** ISPHERE - **Location:** Houston, TX, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Active Directory, Application Firewall, Application Layers, Border Gateway Protocol, Cyber Security, System Configuration, Dynamic Host Configuration Protocol, Domain Name System (DNS), Network Troubleshooting, Network Layer, Transport Layer, Cisco Nexus Switches, Open Shortest Path First (OSPF), Windows PowerShell, Ansible, Server Virtualization, Shell Script, Software Deployment, TCP/IP, Virtual Local Area Networks, Cisco Anyconnect, Transport Layer Security, Load Balancing, System Availability, Software Security, ARUBA, Big Ip, Cisco, Citrix Netscaler - **Published:** July 17, 2026 - **Apply:** https://www.dice.com/job-detail/b75871e4-e4df-455f-8c64-0b845ca69678 ## About the Role * 7 or more years of enterprise network engineering experience * At least 5 years of hands-on F5 BIG-IP engineering experience * Strong experience with BIG-IP LTM, GTM/DNS, ASM or Advanced WAF, and BIG-IQ * Experience creating and maintaining virtual servers, pools, nodes, health monitors, SSL profiles, and Wide IPs * Advanced experience writing, maintaining, and troubleshooting F5 iRules * Experience planning and executing BIG-IP upgrades, migrations, and enterprise implementations * Strong experience configuring and supporting high-availability environments * Experience supporting mission-critical enterprise production systems * Strong knowledge of Cisco routing and switching, BGP, OSPF, VLANs, DNS, DHCP, TCP/IP, and Layer 2 and Layer 3 networking * Experience with SSL offloading, web application firewalls, application security, malicious traffic blocking, and secure application delivery Experience with Cisco Nexus, Cisco Prime, Cisco UCS, Cisco AnyConnect, Aruba, A10, Citrix NetScaler, AppViewX, Venafi, Active Directory, or automation using Ansible, PowerShell, and Linux shell scripting would be beneficial. The ideal candidate is a senior-level engineer who can take ownership of complex F5 environments, lead major platform changes, troubleshoot difficult production issues, and work effectively across networking, security, infrastructure, and application teams. ## Description iSphere is looking for a Senior F5 Network Engineer to support a large enterprise environment in Houston. This is a hybrid position requiring four days onsite and one day remote each week. Candidates must currently live in the Houston area. This is a hands-on engineering role focused on designing, implementing, upgrading, and supporting enterprise F5 BIG-IP environments. The selected engineer will be responsible for application delivery, load balancing, security, high availability, and complex Layer 4 through Layer 7 network troubleshooting. This is not an operations or administrator position. We need an experienced F5 engineer who has led enterprise implementations, migrations, upgrades, and modernization efforts within mission-critical production environments. The Senior F5 Network Engineer will work extensively with BIG-IP LTM, GTM/DNS, ASM or Advanced WAF, and BIG-IQ. This person will create and maintain virtual servers, pools, nodes, health monitors, SSL profiles, and Wide IPs while developing and troubleshooting complex F5 iRules. The engineer will also plan and execute BIG-IP platform upgrades and migrations, configure highly available F5 environments, troubleshoot application-delivery issues, and partner with application, infrastructure, networking, and Information Security teams. Responsibilities will include SSL offloading, web application firewall support, blocking malicious traffic, and maintaining secure and reliable application delivery. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [Demystifying application networking in the cloud](https://www.wearedevelopers.com/videos/675-demystifying-application-networking-in-the-cloud) ## Related Articles - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023)