Sr. Software Development Engineer

F5 Networks, Inc.; San Jose (CA); Hybrid; USD 180,000 - 269,000; Full time

Job summary

F5 Networks, Inc. is hiring a software engineer to design, develop, and implement complete software components for complex products. You will lead code integration, mentor engineers, and drive performance, scalability, and reliability improvements.

You will work with Go and Python, engage in containerized workflows using Docker, and collaborate with product management to refine requirements. This role supports hybrid work and emphasizes rigorous engineering standards.

Qualifications

• 5+ years of professional software engineering with a CS/CE degree or 7+ years equivalent.
• Proficiency in GoLang and Python; C/C++ or similar languages a plus.
• Experience with Linux, Docker, CI/CD, Git workflows, and modern IDEs.

Responsibilities

• Lead design, development and integration of complete software components.
• Mentor junior engineers and guide architecture decisions across projects.
• Improve efficiency and reliability through automation, performance and scaling.
• Collaborate with product management to define requirements and acceptance criteria.
• Participate in hiring, onboarding, and technical presentations.

Skills

GoLang

Python

C/C++

Linux

Docker

CI/CD

Git

AI-assisted coding

Education

Bachelor's degree in CS/CE or similar

Tools

Docker Compose

Git/GitLab

VS Code

GoLand

Job description

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

This position is responsible for the design, development and implementation of complete software components. Designs, develops and maintains high-quality code for complex product components. Manages assigned projects independently and may serve as technical expert for issues associated with specific projects. May assist Principal, Sr. Principal and Architects to detail certain aspects of product design.

Primary Responsibilities

• Leads development of code and integration of complex components into a fully functional system, including leading the process of documenting and maintaining architecture, requirements, algorithms, interfaces, and designs.
• Drives ongoing efficiency and reliability improvements through design and automation (availability, performance, scaling, monitoring, and capacity).
• Partners with product management discuss and define requirements and acceptance criteria; identifies and proposes process improvements to enhance performance and customer satisfaction.
• Guides, mentors, and provides technical guidance to junior and mid-level engineers to deliver well-tested, observable, documented, efficient, scalable, and resilient solutions.
• Represents the team in cross-organizational engineering meetings.
• Performs technical analysis to define design requirements for modifications to existing tools, utilities, system structures, and environments.
• Collaborates with principal engineers and management to define project scope, technical design methodologies, processes, standards, and estimation activities.
• Consistently meets commitments and project milestones.
• Assists in driving and delivering impactful customer-facing solutions.
• Participates in the team's hiring and onboarding processes.
• Conduct technical presentations.
• Upholds F5’s Business Code of Ethics.

Knowledge, Skills and Abilities

Strong development experience in multiple high-level languages, ability to determine the right language for the design (Go and Python highly preferred; Bash scripting required). Working knowledge of networking concepts and the OSI model. Experience using Linux. Practical experience using Docker, Docker Compose, and containerized development workflows. Working knowledge of modern version control, Git/GitLab, CI/CD pipelines, and modern IDEs (e.g., VS Code, GoLand). Experience interfacing with system hardware and firmware interfaces. Hands‑on experience using generative AI interactively to optimize coding, streamline software development workflows, and leverage multi‑agent system paradigms. Understanding of secure end‑to‑end software development life cycle. Duties are performed in a normal office or remote home‑office environment while sitting at a desk or computer table. Duties require the ability to utilize a computer, communicate over phone/video channels, and read technical and printed material.

Minimum Qualifications

• 5+ years of professional software engineering experience with a bachelor’s degree in computer science, computer engineering or similar field or 7+ years equivalent professional experience in enterprise product development.
• Strong experience in multiple high‑level coding languages: GoLang and Python highly preferred, C/C++ or other languages desired.
• Ability to collaborate, adapt, and thrive in a fast‑paced, high‑performance team environment.
• Proven track record of guiding, mentoring, and providing technical leadership to other software developers.
• Strong analytical and troubleshooting skills, with a focus on driving continuous improvement and efficiency.
• Demonstrated excellence in both written and verbal communication.
• #LI-ZB1

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: $179,500.00 - $269,300.00 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: 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 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 [e-mail].

Hybrid

Employees within 30 commutable miles of an F5 office are required to work from the office a minimum of 30 business days per quarter.

Remote

Primarily work from designated home location but can come into an F5 office to work or travel to an offsite location as needed.

Together, we're building a better digital world. Founded in 1996, F5 is a global leader in application delivery and security. Our premier platform helps customers secure and deliver every app, API, and piece of infrastructure across all environments. Backed by over three decades of expertise and 553 patents, our solutions protect against threats while ensuring fast, reliable digital experiences. With over 6,400 employees, we serve more than 23,000 customers in over 170 countries. To continue this work, we need people like you—the best minds in the industry. We're committed to a unique, human‑first culture that encourages authenticity, prioritizes diversity and inclusion, and fosters the growth and success of our employees.