Software Development 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. Build and operate compelling front door experiences on F5.com and other web properties that often serve as the point of engagement with F5’s customers. You will deliver global, performant, accessible and engaging experiences built on modern architecture utilizing leading devops practices while identifying opportunities for innovation and automation to improve development efficiency. What you’ll do Utilize your knowledge of headless CMS technology (Sanity, Contentful etc.) to deliver high quality, visually compelling, accessible and performant user interfaces using React/Next.js and TypeScript frontend frameworks; and Node/Python/Go/Java backends and production APIs. Develop components and templates that reproduce designs in Figma and other tools with high fidelity across multiple OS and browsers. Develop interactive web experiences to improve web engagement and conversion. Collaborate with web production teams, UX and UI designers to define site UX elements. Maintain impeccable documentation on code that you develop, produce and maintain high quality of code and unit tests. Work with Test Automation engineers to maintain and improve automated test suites. Integrate with external services for web site analytics, search, translation and localization capabilities etc. Develop code for integrating with Marketo, Salesforce, cVent etc. Partner with PMs and delivery leads to provide accurate estimates, breakdown tasks and provide trade-offs. Research and bring innovative ideas to solve challenges as a team. Required qualifications 7+ years building global, multi-language web experiences at scale. Strong frontend (React/Next.js + TypeScript) are a must have. Strong backend (Node/Python/Go/Java) experienc e is a plus. Sanity.io, Vercel , Coveo , Tealium and othe r front-end web technology. Hands‑on CI/CD and IaC (Terraform / ARM / Bicep; GitHub Actions / Azure DevOps / Jenkins). Strong observability, security, and production‑ops experience. Excellent communicator who translates product/customer needs into robust technical solutions. Leverages AI tools to boost team productivity — uses AI‑assisted development and automation to create multiplier effects across the org. BS/MS in CS or equivalent experience. Nice to have Prior experience with Marketing Automation platforms. Familiarity with LLM integration patterns and vector DBs (FAISS, Milvus). Collaborate with project team members (Product Managers, Architects, Analysts, Software Engineers, Project Managers, etc.) to ensure development and implementation of data driven solutions. 2. Present technical solutions, capabilities, considerations, and features in business terms. Effectively communicate status, issues, and risks in a precise and timely manner. 3. Collaborate with senior technical staff and PMs to identify, document, plan contingency, track and manage risks and issues until all are resolved. 4. Partner with PMs to break down tasks, provide estimates, and discuss tradeoffs. 5. Writes technical documentation for internal and/or external consumption, for developers of varying skills level. 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 @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 accommodations@f5.com. #J-18808-Ljbffr