F5 Network & Security Engineer

A leading organization operating in a large-scale and critical infrastructure environment is looking for an experienced F5 Network & Security Engineer. The consultant will join the IP Networks team and contribute to the design, implementation, security, and operational management of the F5 BIG-IP infrastructure. This platform is a central component of the organization's data centre environment, supporting application delivery, load balancing, high availability, and security services.

What you will do.

• Design load-balancing and high-availability architectures.
• Design and implement F5 BIG-IP solutions for application delivery and network traffic management.
• Configure and administer virtual servers, pools, nodes, monitors, traffic policies, and SSL profiles.
• Develop, maintain, and troubleshoot F5 iRules.
• Manage SSL/TLS certificates, SSL offloading, encryption, and traffic inspection.
• Deploy and manage Web Application Firewall policies using F5 Advanced WAF.
• Integrate authentication and access-management services using F5 APM and enterprise identity solutions.
• Perform performance tuning, capacity planning, and service optimization.
• Support incident, problem, and change-management activities.
• Perform security patching, software upgrades, and lifecycle management.
• Conduct root-cause analysis for connectivity, application-delivery, and performance issues.
• Maintain technical documentation and operational procedures.
• Provide knowledge transfer to internal teams and stakeholders.

What they ask

• Advanced and hands-on expertise with F5 BIG-IP solutions.
• Strong experience designing and implementing F5 solutions in complex, multi-site, and data-centre environments.
• Strong knowledge of:
• F5 LTM
• F5 Advanced WAF
• F5 APM
• iRules
• SSL/TLS
• Load balancing
• High availability
• Traffic management
• In-depth knowledge of IP networks and network-management principles.
• Good understanding of IT security architectures and technologies.
• Experience with firewall environments such as Check Point and Palo Alto is an asset.
• Strong troubleshooting, analytical, and risk-assessment skills.
• Ability to work independently and methodically in a critical operational environment.
• Customer-oriented, flexible, and able to manage urgent operational priorities.
• Strong communication and stakeholder-management skills.
• Bachelor’s or master’s degree in ICT, electronics, telecommunications, or equivalent technical experience.
• Professional proficiency in Dutch, French, and English.