Senior F5 Network Security Engineer

CONTEXT

In an era of relentless digital advancement and increasing cyber threats, the integrity and availability of critical public services are paramount. Our client, a major player in its sector, is undergoing a profound digital transformation, modernizing its IT landscape to enhance operational efficiency and serve the community more effectively. This transformation, however, broadens the attack surface, making robust network and application security more crucial than ever. The F5 platform, a cornerstone of their infrastructure, plays a vital role in ensuring application delivery, load balancing, and advanced web application firewall protection. They need a visionary Senior F5 expert, not just to manage existing systems, but to evolve and strengthen their defenses against sophisticated attacks. This is a chance to contribute to a mission-critical environment, where your work directly impacts national security and public trust, safeguarding sensitive data and ensuring uninterrupted services during moments of crisis.

ACTIVITIES

• Design, implement, and maintain complex F5 BIG-IP solutions, including LTM, ASM/AWAF, APM, and GTM modules, ensuring high availability and optimal performance.
• Lead the evolution of the F5 infrastructure, proposing and integrating new features and security enhancements to align with strategic transformation projects.
• Perform advanced troubleshooting, performance tuning, and capacity planning for all F5 devices and related network security components.
• Develop, deploy, and manage iRules and F5 policies to enforce security best practices, optimize traffic flow, and meet specific application requirements.
• Conduct continuous security monitoring of the F5 environment, identifying potential vulnerabilities, misconfigurations, and suspicious activities.
• Act as a subject matter expert during security incidents, providing rapid intervention, analysis, and resolution related to F5 and web application security.
• Collaborate with application development, network, and security operations teams to integrate F5 solutions seamlessly into the overall architecture.
• Create and maintain comprehensive documentation, including architectural diagrams, configuration guides, and operational procedures.
• Mentor junior team members and provide expert guidance on F5 technologies and application security best practices.

EXPECTED ACHIEVEMENTS

• A highly secure, resilient, and optimized F5 infrastructure capable of protecting critical applications against advanced cyber threats.
• Successful integration of F5 solutions into the evolving digital landscape, significantly contributing to the client's modernization goals.
• Reduced attack surface and improved incident response capabilities through proactive monitoring, effective policy enforcement, and rapid crisis intervention.
• Establishment of F5 best practices and knowledge sharing within the security team, elevating the overall expertise and operational efficiency.
• Become a key contributor to the security posture of a vital public institution, directly impacting national security and public trust.

ENVIRONMENT

F5 BIG-IP (LTM, ASM/AWAF, APM, GTM), iRules, Firewall technologies, Network protocols (TCP/IP, HTTP/S), Web Application Security, Digital Transformation initiatives, Incident Response, Linux/Unix, Agile/ITIL methodologies, PowerShell/Python scripting (for automation).