At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation. Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive. Job Summary We are seeking an experienced Lab Network Engineer III to design, build, maintain, and troubleshoot complex lab network environments that support development, testing, and validation of networking and systems software. This role requires strong hands-on expertise with networking technologies, lab infrastructure, automation, and cross‑functional collaboration. Key Responsibilities Design, deploy, and maintain scalable lab network topologies to support engineering, QA, and SRE teams Configure and manage network devices including switches, routers, firewalls, and load balancers Support Layer 2/Layer 3 networking, routing protocols (BGP, OSPF), VLANs, VXLAN, and network virtualization Troubleshoot complex network, hardware, and connectivity issues in lab environments Automate lab provisioning, configuration, and validation using scripting and automation tools Manage lab hardware lifecycle, including rack/stack, cabling, power, and inventory Collaborate closely with software, systems, and test teams to enable efficient development and testing workflows Document lab designs, procedures, and operational best practices Participate in on-call or escalation support as needed for lab infrastructure Required Qualifications Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience 7+ years of experience in network engineering or lab infrastructure roles Strong knowledge of TCP/IP, DNS, DHCP, routing and switching concepts Hands-on experience with enterprise networking hardware (e.g., Cisco, Arista, Juniper, or similar) Proficiency in Linux system administration Experience with automation/scripting (Python, Bash, Ansible, etc.) Strong troubleshooting and problem-solving skills Excellent communication and collaboration abilities Preferred Qualifications Experience supporting lab environments for networking or systems software development Familiarity with container networking, virtualization (VMware, KVM), and cloud networking concepts Experience with CI/CD pipelines and test automation frameworks Exposure to network security concepts and tools Experience working across global teams and time zones Level Expectations (Engineer III) Operates independently on complex tasks Drives lab design improvements and automation initiatives Mentors junior engineers Acts as a technical point of contact for lab networking The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.The annual base pay for this position is: $120,800.00 - $181,200.00F5 maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, geographic locations, and market conditions, as well as to reflect F5’s differing products, industries, and lines of business. The pay range referenced is as of the time of the job posting and is subject to change.You may also be offered incentive compensation, bonus, restricted stock units, and benefits. More details about F5’s benefits can be found at the following link: https://www.f5.com/company/careers/benefits. F5 reserves the right to change or terminate any benefit plan without notice. Please note that F5 only contacts candidates through F5 email address (ending with @f5.com) or auto email notification from Workday (ending with f5.com or @myworkday.com).Equal Employment OpportunityIt is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination. F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting accommodations@f5.com.