Senior F5 Engineer: Cloud-Native App Delivery & Security

Telnet, Inc.

Englewood (CO)

On-site

USD 120,000 - 180,000

Full time

2 days ago
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Job summary

Telnet, Inc. is seeking a Senior F5 Engineer to manage a distributed, cloud-integrated F5 BIG-IP estate.

You will design, configure, and optimize LTM, DNS/GTM, and WAF/ASM to ensure scalable, high-availability application delivery across hybrid cloud environments. You will mentor junior engineers, automate workflows with Python/Ansible, and tune security policies while collaborating with multiple vendors and platforms.

Qualifications

  • Bachelor's degree in Computer Science, Computer Engineering, or a related technical field.
  • 5+ years in medium to large enterprise network/infrastructure environments with hands-on F5 BIG-IP depth.
  • Experience with F5 BIG-IP administration and optimization.
  • Experience with automation: Python, Ansible, Git.
  • F5 Distributed Cloud / SaaS WAF experience.
  • Strong troubleshooting and security fundamentals.

Responsibilities

  • Design, configure, and optimize F5 BIG-IP solutions (LTM, DNS/GTM, WAF/ASM) matching OKRs.
  • Establish automated monitoring and alerting to reduce MTTR.
  • Mentor Level I/II engineers and codify F5 best practices.
  • Harden security with WAF policies and TLS certificate lifecycle management.
  • Lead root-cause analysis for P1/P2 incidents and automate remedies.
  • Leverage AI insights to optimize performance and capacity planning.

Skills

F5 BIG-IP administration
LTM/DNS-GTM/WAF-ASM
iRules (Tcl) scripting
Infrastructure automation
Python
Ansible
Git
Mentoring & leadership
Troubleshooting & analysis

Education

Bachelor's degree in Computer Science / Computer Engineering
F5 CTS
F5 CSE

Tools

F5 BIG-IP
Python
Ansible
Git
Dynatrace
tcpdump/Wireshark
AWS Cloud Networking
Zscaler
Palo Alto firewall

Job description

Telnet, Inc. is seeking a Senior F5 Engineer to manage a distributed, cloud-integrated F5 BIG-IP estate.

You will design, configure, and optimize LTM, DNS/GTM, and WAF/ASM to ensure scalable, high-availability application delivery across hybrid cloud environments. You will mentor junior engineers, automate workflows with Python/Ansible, and tune security policies while collaborating with multiple vendors and platforms.

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