Senior Network Security Engineer - Riyadh, KSA
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Key skills for this role
About the Role
DeepSource Technologies seeks a Senior Network Security Engineer for a role in Riyadh, KSA. The position involves deep technical experience with F5 advanced WAF, firewall policy management, IP addressing, DNS governance, and secure execution of network cleanup and migration activities.
Key Skills for This Role
Responsibilities
- Identify and clean up unused or orphaned IP addresses on F5 BIG IP load balancers to improve performance, efficiency, and manageability.
- Review, validate, and remove unused, duplicate, or obsolete firewall policies across HQ and DR data centers while maintaining security posture and compliance.
- Ensure firewall and load balancer changes are aligned with high availability (HA) and disaster recovery (DR) requirements.
- Perform a comprehensive assessment of all devices, applications, databases, and network components using public IP addresses.
- Analyze application, service, and security dependencies to determine the potential impact of IP, firewall, and load balancer changes.
- Classify firewall rules and DNS related entries based on criticality, usage, activity level, and business relevance.
- Develop detailed cleanup and migration plans including sequencing, timelines, backups, and rollback procedures.
- Design and allocate private IP address ranges, ensuring compatibility with existing network and security architecture.
- Assess and analyze DNS records to identify unused, outdated, or invalid entries related to applications and security controls.
- Remove or update invalid, obsolete, or unnecessary DNS records while ensuring no impact on applications or end users.
- Execute cleanup and migration activities in a secure, controlled, and auditable manner, ensuring uninterrupted service continuity.
- Coordinate with application, systems, SOC, and operations teams to align firewall rules, NAT, routing, DNS, and access controls.
Requirements
- Deep technical experience on F5 advanced WAF
- Strong hands on experience with firewalls (NGFW), security policies, NAT, and access control management
- Proven expertise in F5 BIG IP (LTM), including VIPs, Self IPs, SNATs, and HA configurations
- Solid understanding of enterprise IP addressing, DNS, routing, and network security architecture
- Experience operating in HQ / DR, high availability, and mission critical environments
- Strong knowledge of change management, rollback planning, and risk mitigation
- Bachelor's degree in Computer Science, Information Technology, or related field (preferred)
- Certifications such as CCNP Security, F5 CA/CTS, NSE, or equivalent (preferred)
Full Job Posting
Overview
- DeepSource Technologies seeks a Senior Network Security Engineer for a role in Riyadh, KSA.
Responsibilities
- Identify and clean up unused or orphaned IP addresses on F5 BIG IP load balancers to improve performance, efficiency, and manageability.
- Review, validate, and remove unused, duplicate, or obsolete firewall policies across HQ and DR data centers while maintaining security posture and compliance.
- Ensure firewall and load balancer changes are aligned with high availability (HA) and disaster recovery (DR) requirements.
- Perform a comprehensive assessment of all devices, applications, databases, and network components using public IP addresses.
- Analyze application, service, and security dependencies to determine the potential impact of IP, firewall, and load balancer changes.
- Classify firewall rules and DNS related entries based on criticality, usage, activity level, and business relevance.
- Develop detailed cleanup and migration plans including sequencing, timelines, backups, and rollback procedures.
- Design and allocate private IP address ranges, ensuring compatibility with existing network and security architecture.
- Assess and analyze DNS records to identify unused, outdated, or invalid entries related to applications and security controls.
- Remove or update invalid, obsolete, or unnecessary DNS records while ensuring no impact on applications or end users.
- Execute cleanup and migration activities in a secure, controlled, and auditable manner, ensuring uninterrupted service continuity.
- Coordinate with application, systems, SOC, and operations teams to align firewall rules, NAT, routing, DNS, and access controls.
Requirements
- Deep technical experience on F5 advanced WAF
- Strong hands on experience with firewalls (NGFW), security policies, NAT, and access control management
- Proven expertise in F5 BIG IP (LTM), including VIPs, Self IPs, SNATs, and HA configurations
- Solid understanding of enterprise IP addressing, DNS, routing, and network security architecture
- Experience operating in HQ / DR, high availability, and mission critical environments
- Strong knowledge of change management, rollback planning, and risk mitigation
Preferred Qualifications
- Bachelor's degree in Computer Science, Information Technology, or related field
- Certifications such as CCNP Security, F5 CA/CTS, NSE, or equivalent
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