Senior F5 Eningeer

Job Description

Senior F5 Engineer Overview

Our client is seeking a Senior F5 Engineer to help keep application delivery, traffic management, and web application security secure, reliable, and high-performing in a distributed, cloud-integrated environment. In this role, you’ll design, configure, optimize, and modernize F5 BIG-IP platforms while supporting F5 Distributed Cloud and public cloud networking solutions. You’ll also help lead incident resolution, strengthen operational automation, improve web application security, and mentor junior engineers—making a direct impact on the availability and performance of mission-critical services.

• Advanced hands-on experience administering and optimizing F5 BIG-IP in active-active environments
• Strong experience with F5 BIG-IP LTM, DNS/GTM, WAF/ASM, SSL offload, and DR/BC concepts
• Ability to develop, test, and troubleshoot F5 iRules (Tcl)
• Experience tuning WAF/ASM policies to secure application traffic
• Experience with F5 Distributed Cloud and SaaS-based WAF/security services
• Infrastructure automation using Python, Ansible, and Git
• Knowledge of AWS cloud networking
• Experience in environments using Zscaler (ZIA/ZPA) and Palo Alto firewalls
• Strong fundamentals in TCP/IP, SSL/TLS, and DNS
• Troubleshooting skills using tools like tcpdump and Wireshark
• Experience analyzing SSL handshakes, logs, and application delivery issues
• Ability to establish monitoring/alerting processes that improve reliability and reduce resolution times
• Experience leading root cause analysis for high-priority incidents and recurring problems
• Ability to use telemetry and machine learning recommendations for optimization, threat detection, troubleshooting, and capacity planning
• Strong communication, collaboration, and mentoring skills

• F5 Certified Technology Specialist (F5-CTS)
• F5 Certified Solution Expert (F5-CSE)
• Experience creating best practices, runbooks, and standard operating procedures
• Experience modernizing traditional F5 environments into automated, software-defined, or SaaS-delivered architectures
• Experience with Dynatrace (or similar monitoring platforms)

• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field
• 5+ years in medium to large enterprise network/infrastructure environments
• Demonstrable hands-on experience administering and optimizing F5 BIG-IP
• Experience mentoring Level I/II engineers
• Experience supporting complex infrastructure projects and enterprise application delivery environments

• Work arrangement: On-site
• Schedule: 40 hours/week
• Employment type: Contract-to-hire
• Travel expectations, work authorization requirements, and security clearance requirements were not provided

If you’re ready to apply your F5 expertise to critical enterprise systems while helping improve automation, security, and performance, we encourage you to apply.

Associate Staffing is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment based on race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status under applicable law. We are committed to creating a diverse and inclusive work environment and welcome applicants from all backgrounds to apply for open positions with our company.