Senior F5 Engineer (Lead)

Senior F5 Engineer / Technical Lead – F5 & Application Delivery

Check out the role overview below If you are confident you have got the right skills and experience, apply today.

Location: Englewood, CO 80112 (100% Onsite)

Employment Type: Contract-to-Hire

Contract Duration: Initial 90 Days

Pay Rate: Up to $85/hr on W2

Relocation: Open to candidates willing to relocate at their own expense

Position Overview

We are seeking an experienced Senior F5 Engineer / Technical Lead to join our Secure Connectivity team. This position offers an exciting opportunity to take ownership of enterprise F5 infrastructure, application delivery, traffic management, and web application security while contributing to the modernization of a large-scale network environment.

The ideal candidate will bring strong hands-on experience with F5 BIG-IP technologies and preferably F5 Distributed Cloud (F5 XC), along with exposure to enterprise networking and security technologies such as Palo Alto, Zscaler, and AWS networking.

We are open to both senior individual contributors and technically strong engineers with leadership experience or aspirations to move into technical management.

Depending on experience and career interests, the selected candidate may focus primarily on hands-on F5 engineering or take on additional technical leadership responsibilities, including mentoring engineers, coordinating operations, and guiding a small team.

This is an excellent opportunity for an experienced F5 professional looking to expand their technical ownership and potentially grow into a larger leadership role.

Key Responsibilities

• Design, implement, administer, and troubleshoot enterprise F5 application delivery and load-balancing environments.
• Support and optimize F5 BIG-IP platforms, including LTM, DNS/GTM, and WAF/ASM modules.
• Work with F5 Distributed Cloud (F5 XC) and SaaS-based application security and delivery solutions.
• Configure and maintain application traffic management, load balancing, SSL/TLS termination, and high-availability solutions.
• Develop, troubleshoot, and optimize F5 iRules using Tcl for advanced traffic management and application delivery.
• Monitor application delivery infrastructure, identify performance bottlenecks, and proactively resolve operational issues.
• Support security policies, WAF configurations, SSL certificates, and enterprise traffic protection.
• Collaborate with network and security teams supporting Palo Alto firewalls, Zscaler (ZIA/ZPA), and AWS cloud networking.
• Participate in major incident troubleshooting, root cause analysis, and permanent resolution of recurring infrastructure issues.
• Identify opportunities to automate infrastructure operations using Python, Ansible, Git, and other automation tools.
• Develop operational documentation, technical standards, runbooks, and best practices.
• Collaborate with internal teams and offshore managed-service partners to support knowledge transfer and operational continuity.

Technical Leadership Responsibilities (Depending on Experience)

• Provide technical guidance and mentorship to junior and mid-level engineers.
• Coordinate day-to-day F5 engineering and operational activities.
• Support technical decision-making, troubleshooting, and incident escalations.
• Help establish operational processes, service standards, and effective team collaboration.
• Contribute to hiring, onboarding, and development of engineering talent.
• Take ownership of technical deliverables while balancing hands-on engineering responsibilities with team coordination.
• Demonstrate the ability and interest to grow into a broader technical management role.

Required Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or a related technical field, or equivalent relevant experience.
• 5+ years of experience in enterprise network infrastructure or application delivery environments.
• Strong hands-on experience with F5 BIG-IP administration, configuration, troubleshooting, and optimization.
• Experience with F5 BIG-IP modules such as LTM, DNS/GTM, and WAF/ASM.
• Experience with load balancing, application traffic management, SSL offloading, DNS, and high-availability configurations.
• Strong understanding of networking fundamentals, including TCP/IP, DNS, and SSL/TLS.
• Excellent troubleshooting, analytical, and problem-solving skills.
• Strong communication, interpersonal, and collaboration skills.
• Ability to work effectively with cross-functional teams and manage technical challenges independently.

Preferred Technical Skills

• Experience with F5 Distributed Cloud (F5 XC), Distributed Cloud Services, or SaaS-based WAF solutions.
• Experience developing and troubleshooting F5 iRules using Tcl.
• Experience with Palo Alto firewalls and enterprise network security.
• Exposure to Zscaler technologies, including ZIA and ZPA.
• Experience with AWS cloud networking and hybrid cloud connectivity.
• Infrastructure automation experience using Python, Ansible, Git, or similar tools.
• Familiarity with packet analysis tools such as Wireshark and tcpdump.
• Experience with monitoring and observability platforms such as Dynatrace.

Additional Qualifications for Technical Lead Candidates

• Previous experience mentoring engineers or coordinating technical teams.
• Experience supporting enterprise infrastructure operations and incident management.
• Ability to manage competing priorities and guide technical teams through complex issues.
• Strong stakeholder communication and relationship-building skills.
• Experience working with offshore teams or managed service providers is an advantage.
• Interest in transitioning from a senior individual contributor role into technical leadership or people management.

Ideal Candidate Profile

We are particularly interested in professionals who:

• Have strong hands-on F5 engineering experience, especially with F5 Distributed Cloud and BIG-IP.
• Can work effectively in a collaborative enterprise infrastructure environment.
• Demonstrate excellent communication and interpersonal skills.
• Are comfortable taking ownership of technical issues and driving them to resolution.
• Can mentor and support other engineers.
• Are adaptable, proactive, and comfortable working in a changing technical environment.
• Have an interest in expanding their responsibilities into technical leadership and team management.

Important: Candidates do not need to meet every preferred technical requirement. Strong F5 experience, a collaborative attitude, problem-solving ability, and leadership potential will be given significant consideration.

Work Environment & Opportunity

• 100% onsite position in Englewood, Colorado.
• Contract-to-hire opportunity with an initial 90-day contract.
• Opportunity to work within Secure Connectivity organization.
• Exposure to enterprise F5 infrastructure modernization and cloud-based security technologies.
• Opportunity to collaborate with onshore and offshore engineering teams.
• Potential career progression into a technical leadership and broader management position. xuwmhxw

Interested candidates: Apply with your updated resume highlighting your F5 BIG-IP, F5 Distributed Cloud, enterprise networking, and technical leadership experience.