About the Role
Ready to apply for roles like this?
Unlock the company name and direct application link. Subscribers get instant access to fresh jobs across Dubai, Abu Dhabi and Riyadh, many with visa support.
Unlock employer & apply directly
We are seeking an experienced professional with deep technical expertise in F5 advanced Web Application Firewall (WAF) and a strong background in network and security assessment. This role involves enhancing the performance and manageability of F5 BIG-IP load balancers, as well as ensuring the security posture across HQ and DR data centers.
Responsibilities
- F5 Management: Identify and clean up unused or orphaned IP addresses on F5 BIG-IP load balancers to improve performance, efficiency, and manageability.
- Firewall Policy Management: Review, validate, and remove unused, duplicate, or obsolete firewall policies, while maintaining security posture and compliance. Ensure that changes align with high availability (HA) and disaster recovery (DR) requirements.
- Network & Security Assessment: Conduct comprehensive assessments of all devices, applications, databases, and network components utilizing public IP addresses. Analyze application, service, and security dependencies to assess the impact of changes to IP, firewalls, and load balancers. Classify firewall rules and DNS-related entries based on criticality, usage, activity level, and business relevance.
- IP Addressing & DNS Governance: Develop detailed cleanup and migration plans, including sequencing, timelines, backups, and rollback procedures. Design and allocate private IP address ranges compatible with existing architectures. Assess and analyze DNS records to identify and address unused or outdated entries, ensuring no negative impact on applications or end users.
- Secure Execution & Validation: Execute cleanup and migration activities in a secure, controlled, and auditable manner to ensure service continuity. Coordinate with relevant teams to align firewall rules, NAT, routing, DNS, and access controls. Perform post-change testing and validation to ensure service availability and performance stability.
- Governance, Review & Documentation: Establish periodic review procedures for firewall rules, F5 configurations, IP addressing, and DNS records. Maintain comprehensive documentation of all activities, changes, issues encountered, and remediation actions. Support audit, compliance, and regulatory requirements through proper documentation and change tracking.
Requirements
- Strong hands-on experience with next-generation firewalls (NGFW), security policies, NAT, and access control management.
- Proven expertise in F5 BIG-IP, including configurations for virtual IPs (VIPs), Self IPs, SNATs, and HA setups.
- Thorough understanding of enterprise IP addressing, DNS, routing, and network security architecture.
- Experience working in high-availability and mission-critical environments across HQ and DR setups.
- Knowledge of change management, rollback planning, and risk mitigation.
Education & Certifications (Preferred)
- Bachelor’s degree in Computer Science, Information Technology, or a related field.
- Certifications such as CCNP Security, F5-CA/CTS, NSE, or equivalent are highly regarded.
