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. As a Security Support Engineer II, you will be an essential member of our Network Operations Center (NOC) team with strong technical acumen in network automation and deep security analysis. You will deliver in-depth troubleshooting on advanced network, security, and infrastructure issues. You will support and troubleshoot enterprise-grade products and production services spanning kubernetes, cloud environments, data centers, LAN/WAN/SD-WAN, switching, routing, remote access, and application security. In this technical role within the NOC, you will drive tooling automation, proactive observability, and rapid incident detection & remediation to ensure our commitment to a 99.999% network availability SLO for our customers. Domain Requirements & Expectations: Experience & Education • 5–8 years of network/security support experience in a large enterprise NOC or operations environment. • Bachelors in Computer Science or Information Technology. Network & Protocol Mastery • Deep expertise in OSI model troubleshooting and protocols: OSPF, BGP, STP, TCP/UDP, IPv6, QoS. • Proven experience managing and troubleshooting Multi-OS LAN/WAN/SD-WAN architectures. Cloud & Containers • Strong working knowledge of Kubernetes (K8s), container networking/ingress, and managed cloud Kubernetes environments (e.g., AWS EKS). Product & Security Acumen • Strong understanding of enterprise application delivery & security products (WAF, DDoS mitigation, DNS, Load Balancers). Observability & Monitoring • Hands-on experience with tools such as Grafana, Splunk, Nagios, New Relic, Cosmos, Zabbix, or equivalent platforms. Automation & CI/CD • Practical experience with automation tooling: Python, Ansible, Jenkins, Git, ZTP (Zero Touch Provisioning), or Infrastructure as Code (IaC). Operational & Soft Skills • Proven ability to troubleshoot calmly under pressure during mission-critical production incidents. • Strong documentation, stakeholder management, and customer-facing communication skills. What will you do? Engineering & Analysis: (60%) Enhance the observability of network infrastructure by implementing numerous automations, advanced monitoring solutions, analyzing data trends, and proactively identifying potential issues from alerts and triggers to ensure a seamless and reliable network experience for our customers. Configure and manage customized alerting systems for DDoS attack, availability, latency, packet loss, etc., across various layers of the network. Proactively engage with Customer Success team upon triggered alerts to deliver insightful information on the nature and the reason behind the alerts or network performance degradation. Conduct thorough Root Cause Analysis (RCA) of network incidents to identify underlying issues causing disruptions or failures. Develop and implement effective solutions and preventive measures to mitigate identified root causes. Troubleshoot and implement advanced network configurations including SDN, IaC, switches, routers, firewalls, load balancers, WAF, DDoS, DNS, and Cloud networking environment. Design and implement automated processes to deploy, monitor and maintain network systems. Proactively ensure ongoing communication with teammates, customers, and stakeholders for ongoing network issues until a closure is reached. Review and approve team deliverables including customer updates, documentation changes, and network issue handling procedures. Production support: (40%) Proactively monitoring network performance, troubleshoot issues, and optimizing network incident triggers configurations for maximum efficiency and uptime. Engage in complex troubleshooting including running maintenance and recovery tasks interpreting alarms and errors in the logs and performing maintenance to correct problems. Collaborate with vendors and other technical personnel to resolve technical issues and achieve highest levels of systems and infrastructure availability. Handle and escalate as needed significant network impacting alerts ensuring swift resolution. Participate in customer calls, providing detailed and regular updates on critical issues. Communicate with impacted users throughout the troubleshooting/remediation process as needed. Participate in on-call rotation and shift duties in line with the 24/7 business operation. 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 [email protected]. Hybrid: Employees within 50 commutable miles of a primary F5 office are required to work from the office Tuesday-Thursday (starting Feb. 1, 2027). 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.

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