SDET - Engineer III

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.

F5 sits between the Internet and some of the largest companies on Earth. We keep their applications running fast, safe, and efficiently. Our hardware and software products are highly configurable and blazingly fast. The Drivers’ team at F5 is looking for an Engineer III who is well versed with testing network drivers for a scalable, distributed, and carrier‑grade software solution. This team owns the low‑level network drivers for high‑performance packet processing in the BIG‑IP’s data‑plane.

BIG‑IP is F5’s flagship Application Delivery Controller. The data‑plane pod either runs inside a virtual machine or directly in a customer’s native Kubernetes deployment. The network drivers developed by this team are used for a variety of para‑virtualized interfaces, SR‑IOV virtual functions, and F5’s FPGAs.

• Design and implement test automations for network drivers.
• Evaluate network driver features and performance.
• Set up and maintain hardware resources used for CI/CD pipeline automation.
• Document software designs via functional specifications and other design documents.
• Conduct presentations internally and externally.
• Participate in hiring and onboarding process.
• Collaborate with team members and technical leads.
• Uphold F5’s Business Code of Ethics.

• Must have test development experience using Python / Bash.
• Must have prior work experience with C programming.
• 3+ years test / programming experience.
• Must have experience and knowledge of networking protocols, architecture, and technologies.
• Excellent analytic / troubleshooting and debugging skills.
• Ability to manage ambiguity in work.
• Ability to present ideas verbally and in‑writing with clarity and precision.

• Well‑versed in containerization solutions (like Kubernetes).
• Well‑versed in microservices architecture.
• Experience with ansible and/or terraform.
• Experience with Git Lab and/or similar repository solutions.

Typically requires a minimum of 3+ years of related experience with a bachelor’s degree; or 2-3 years and a master’s degree; or a PhD without experience; or equivalent work experience.

It 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 accommodation is completely voluntary. F5 will assess the need for accommodation in the application process separately from those that may be needed to perform the job. Request by contacting

The annual base pay for this position is: $ - $. F5 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  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 ) or auto email notification from Workday (ending with  or ). The contact email is through F5 email address ending with  or auto notifications from Workday (ending with  or ).