People Matter

Engineer III, Software



Multiple locations
Posted on Sunday, February 4, 2024

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.

Position Summary

F5 Inc. is actively in pursuit of an exceptional Engineer III (Individual Contributor) to play a pivotal role in our team, dedicated to advancing the performance, scale, and DDOS testing endeavors for the revolutionary F5XC Distributed Cloud SaaS Platform.

Primary Responsibilities

  • Strategic Test Planning: Develop meticulous test plans for the features and components under your purview, ensuring a comprehensive approach to testing excellence.

  • Collaborative Reviews: Actively participate in test plan and bug scrub reviews, contributing to the collective effort to enhance the platform's robustness.

  • Performance Optimization: Stress-test applications, profiling performance to identify existing behavior and bottlenecks, playing a key role in elevating the F5XC platform's performance.

  • Tool Development: Contribute to the development of a cutting-edge Test Framework and Tools as required, demonstrating your commitment to innovation in the testing domain.

  • Front-End Scalability: Grow into addressing front-end issues related to XC's scale and performance, actively contributing to the ongoing evolution of the platform.

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.

Knowledge, Skills and Abilities

  • Test Automation Champion: Exhibit a strong belief in test automation, showcasing a history of impactful contributions in this area.

  • Networking Proficiency: Demonstrate excellent, hands-on knowledge of networking fundamentals, coupled with practical experience in Kubernetes environments and source control (git).

  • Coding Expertise: Showcase excellent hands-on experience in Python/Golang, underlining your coding prowess and ability to navigate complex codebases.

  • Security Acuity: Possess a comprehensive understanding of Security (WAAP), contributing to the platform's resilience against potential threats.

  • Technical Insight: Display a good understanding of L2/L3 networking and routing protocols, with additional knowledge of the Linux Networking stack and Linux performance tuning parameters being beneficial.


  • Typically requires a minimum of 5+ years of related experience with a Bachelor’s degree; or 3+ years and a Master’s degree.

  • Excellent organizational agility and communication skills throughout the organization.


  • Empowered Work Culture: Experience an environment that values autonomy, fostering a culture where creativity and ownership are encouraged.

  • Continuous Learning: Benefit from the mentorship of experienced professionals with solid backgrounds across diverse domains, supporting your professional growth.

  • Team Cohesion: Join a collaborative and supportive team where you'll feel at home from day one, contributing to a positive and inspiring workplace.

F5 Inc. is an equal opportunity employer and strongly supports diversity in the workplace.

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.

Please note that F5 only contacts candidates through F5 email address (ending with or auto email notification from Yello/Workday (ending with or

Equal Employment Opportunity

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 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