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.

Key Responsibilities Design, develop, and maintain scalable automated test frameworks and test suites for On-Prem and Distributed Cloud WAAP solutions. Drive adoption of AI-powered automation , code review , regression optimization , and test reporting . Collaborate with developers , product managers , SREs , and QA engineers across global teams to define test strategies , acceptance criteria , and quality goals .

Validate WAAP deployments across on-premises and multi-cloud environments , ensuring functionality , stability , reliability , and detection accuracy . Develop and execute end-to-end , functional , integration , and regression tests to ensure product quality and resilience. Validate AI/ML-driven algorithms for API discovery , classification , API protection , and security detection accuracy .

Test and enhance API security detection capabilities , including OWASP API Top 10 attack identification and prevention. Troubleshoot issues in complex distributed systems and microservices architectures , partnering with cross-functional teams to drive resolution. Identify, track, and manage defects through their lifecycle, ensuring timely triage and closure.

Build and maintain test environments , deployment topologies , test plans , and supporting documentation. Mentor junior engineers and champion best practices in quality engineering , automation , and continuous improvement . Stay current with emerging trends in AI , test automation , cloud technologies , and API security .

Required Skills 5+ years of experience in Quality Assurance and Test Automation , with a strong focus on product quality and reliability. Strong programming and automation skills in Python , Go , or similar languages. Solid understanding of web technologies , including HTML , HTTP/HTTPS , REST APIs , GraphQL , load balancers , and API gateways .

Experience working with JSON , YAML , OpenAPI/Swagger specifications , schema validation , and API testing . Strong understanding of distributed systems , microservices architectures , Docker , and containerized environments . Hands-on experience testing applications deployed on AWS , Azure , or GCP .

Experience with CI/CD pipelines , Git , and modern DevOps practices . Proficiency with troubleshooting and network analysis tools such as Burp Suite , tcpdump , and Wireshark . Strong analytical , debugging , and problem-solving skills with keen attention to detail.

Excellent communication and collaboration skills in cross-functional and globally distributed teams. Bachelor's degree in Computer Science , Engineering , or a related technical field (or equivalent practical experience). Preferred Skills Experience validating Application Security and API Security controls against OWASP Top 10 and OWASP API Top 10 vulnerabilities.

Familiarity with observability and monitoring platforms such as ELK Stack , Grafana , and Prometheus . Experience testing AI/ML-based systems and data science models in security, analytics, or related domains. Strong understanding of networking concepts (Layers 3–7) , including proxies , firewalls , and traffic inspection technologies .

Exposure to penetration testing methodologies and security validation best practices . 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.