People Matter

Site Reliability Engineer III/Network



Software Engineering
Seattle, WA, USA
Posted on Sunday, May 19, 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 Software engineering is a core discipline at F5 for many roles. As a software engineer specializing in site reliability, you will bring a software engineering and automated solution mindset to your work.

The Site Reliability Engineer III will be responsible for ensuring the reliability, availability, and scalability of critical systems, networks and SaaS platforms. Systems under the care of an SRE III must operate effectively and reliably through scalable builds and deployments, frequent releases, and complex architectures that encompass modern technologies. You will work closely with technical and non-technical teams throughout the organization to facilitate the design and implementation of scalable solutions, drive automation initiatives, and monitor and maintain the performance of critical systems.

What You'll Do:

  • Apply modern engineering principles and practices to operational functions with a strong emphasis on automating network and security tasks to ensure system reliability, availability, and scalability.
  • Scale systems sustainably through mechanisms such as automation and evolve systems by fostering changes that improve velocity, automating network configurations, security policies and compliance checks.
  • Troubleshoot and resolve complex issues, automating response to common problems (system failures, connectivity issues and bottlenecks) to prevent future occurrences.
  • Partner with cross-functional teams to design and implement scalable and robust system architecture to improve services on an ongoing basis
  • Investigate various open source and proprietary technologies, components, libraries, tools etc. and help build a highly available, highly scalable and easily manageable system.
  • Apply observability and data skills to proactively measure system performance, an diagnosing services/needs and quickly identify solutions.
  • Participate in service operation and RCA activities with defining SLOs and SLIs for business stakeholders.
  • Implement and enforce security best practices through automated systems that continuously scan for vulnerabilities, apply patches, and adjust configurations to maintain a strong security posture.
  • Create and maintain comprehensive knowledge bases for system documentation, including standard operating procedures, configurations, and troubleshooting guides, to support end-users' ability to use the systems effectively.
  • Participate in on-call rotation.

What You’ll Bring:

  • A code-first approach to manage resources in the cloud, SaaS platforms, containerization & orchestration.
  • Knowledge in technology systems including, network infrastructure, firewalls and SaaS platforms.
  • Experience with network management and automation tools (e.g., Ansible, Terraform).
  • Solid understanding of cybersecurity principles and security automation, including access control, automated threat detection, response solutions, and security orchestration tools.
  • Demonstrated ability to integrate network and security considerations into the DevOps lifecycle, ensuring that automation and security are part of the continuous integration and deployment pipeline.
  • Proficiency in Agile delivery, DevOps principles and associated tools and technologies.
  • Familiarity with compliance and regulatory guidelines.
  • Demonstrated ability to work both independently and as an integral member of an agile team.
  • Proficient communication, planning, problem solving, trouble shooting, and organization skills.
  • Flexibility to adapt to changing project requirements and timelines.


  • BS/BA or equivalent work experience.
  • 5+ years' experience as a software engineer, specializing in site reliability, network automation or similar role in a technology environment.
  • Technical confidence and familiarity with DevOps tools.
  • Strong proficiency in scripting and/or programming languages.
  • Hands on experience with technology systems tools, protocols, and platforms.

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 U.S. base pay range for this position is: $128,099.00 - $192,149.00

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 the following link: 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

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