Senior F5 Engineer

IDR, Inc.; Englewood (CO); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Competitive compensation

Full benefits (Medical, Vision, Dental

Industry-leading organization

Job summary

IDR, Inc. in Englewood, CO is seeking a Senior F5 Engineer to manage and optimize a large F5 BIG-IP environment, enhancing application delivery, security, and reliability across a distributed, cloud-integrated enterprise.

You will develop iRules, tune WAF/ASM policies, support SaaS/cloud security initiatives, and mentor junior engineers while advancing automation with Python, Ansible, and Git.

This role offers a competitive compensation package and full benefits within a respected organization.

Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• 5+ years supporting medium to large enterprise network/infrastructure environments with deep, hands-on F5 BIG-IP experience (LTM, DNS/GTM, WAF/ASM, SSL offload, DR/BC)
• Experience developing F5 iRules (Tcl) and performing WAF/ASM policy tuning and optimization
• Familiarity with F5 Distributed Cloud and SaaS-based WAF/security services in modern enterprise environments
• Experience with infrastructure automation tools (Python and/or Ansible and/or Git) plus strong networking fundamentals (TCP/IP, HTTP/HTTPS, SSL/TLS, DNS)

Responsibilities

• Own hands-on administration, optimization, and operational support of an enterprise F5 BIG-IP environment
• Enhance availability, performance, and security for mission-critical applications through load balancing, SSL/TLS, and WAF best practices
• Develop and maintain F5 iRules and tune WAF/ASM policies to meet evolving application needs
• Support modernization efforts that integrate SaaS and cloud-based security/application delivery capabilities
• Mentor junior engineers and contribute to standards-based engineering practices and continuous improvement

Skills

F5 BIG-IP

LTM

DNS/GTM

WAF/ASM

SSL offload

iRules (Tcl)

Python

Ansible

Git

TCP/IP networking

Education

Bachelor’s degree in Computer Science/Engineering or related field

Tools

Python

Ansible

Git

Job description

IDR is seeking a Senior F5 Engineer to join one of our top clients for an opportunity in Englewood, CO. In this role, you will help ensure application delivery, traffic management, and web application security remain resilient, high-performing, and secure across a distributed, cloud-integrated enterprise environment. You’ll modernize and optimize an F5 BIG-IP ecosystem while partnering with engineering stakeholders to improve scalability, automation, and operational reliability.

Position Overview for the Senior F5 Engineer:

• Own hands-on administration, optimization, and operational support of an enterprise F5 BIG-IP environment
• Enhance availability, performance, and security for mission-critical applications through load balancing, SSL/TLS, and WAF best practices
• Develop and maintain F5 iRules and tune WAF/ASM policies to meet evolving application needs
• Support modernization efforts that integrate SaaS and cloud-based security/application delivery capabilities
• Mentor junior engineers and contribute to standards-based engineering practices and continuous improvement

Requirements for the Senior F5 Engineer:

• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field
• 5+ years supporting medium to large enterprise network/infrastructure environments with deep, hands-on F5 BIG-IP experience (LTM, DNS/GTM, WAF/ASM, SSL offload, DR/BC)
• Experience developing F5 iRules (Tcl) and performing WAF/ASM policy tuning and optimization
• Familiarity with F5 Distributed Cloud and SaaS-based WAF/security services in modern enterprise environments
• Experience with infrastructure automation tools (Python and/or Ansible and/or Git) plus strong networking fundamentals (TCP/IP, HTTP/HTTPS, SSL/TLS, DNS)

What's in it for you?

• Competitive compensation package
• Full Benefits; Medical, Vision, Dental, and more!
• Opportunity to get in with an industry leading organization.

Why IDR?

• 25+ Years of Proven Industry Experience in 4 major markets
• Employee Stock Ownership Program
• Dedicated Engagement Manager who is committed to you and your success.
• Medical, Dental, Vision, and Life Insurance
• ClearlyRated's Best of Staffing® Client and Talent Award winner 12 years in a row.