SDET - Engineer III

SDET – Engineer III at F5

F5 sits between the Internet and some of the largest companies on Earth, keeping their applications running fast, safe, and efficiently. The Drivers’ team needs a seasoned engineer well-versed in testing network drivers for a scalable, distributed, carrier‑grade software solution. This team owns the low‑level network drivers that support high‑performance packet processing in the BIG‑IP’s data‑plane, a flagship Application Delivery Controller that can run inside a virtual machine or in a customer’s native Kubernetes deployment.

The drivers support a range 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 processes.
• Collaborate with team members and technical leads.
• Uphold F5's Business Code of Ethics.

• Test development experience using Python or Bash.
• Prior work experience with C programming.
• 3+ years of test or programming experience.
• 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 (e.g., 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.

F5 is committed to providing equal employment opportunities to all employees and 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 reasonable accommodations for candidates. Requests are voluntary and handled separately from those needed to perform the job. Contact

Annual base pay for this position ranges from $ to $. In addition, you may be offered incentive compensation, bonus, restricted stock units, and a comprehensive benefits package. More details about F5’s benefits can be found at