Senior Network Security Engineer

Gazelle Global; Amsterdam; On-site; EUR 80,000 - 110,000; Full time

Job summary

Gazelle Global in Amsterdam, Netherlands is seeking a Senior Network & Security Engineer to design, implement and maintain secure and scalable network and application delivery across a hybrid infrastructure.

You will work with Palo Alto firewalls, Infoblox IPAM and F5 load balancers, ensuring security standards and Agile ways of working in a fast-paced environment.

Qualifications

• Experience designing and operating secure hybrid networks.
• Strong knowledge of firewall, IPS/IDS and VPN technologies.
• Ability to implement DNS/DHCP/IPAM and load-balancing configurations in large environments.

Responsibilities

• Implemented Palo Alto firewall configurations (Panorama GUI & CLI), including policies, NAT, and zone configurations.
• Managed Infoblox IPAM (IP allocation, subnet management, DNS updates).
• Configured F5 LTM/GTM: VIPs, pools, pool members, health monitors, and iRules.
• Implemented VPN (site-to-site) and leased line connectivity.
• Designed and enforced router ACLs for segmentation and traffic control.
• Supported LCM projects by implementing network and security changes.
• Delivered new functionality including VIPs, routing setups, and security enhancements.
• Supported IPC migrations with end-to-end connectivity and security implementation.

Skills

Network engineering

Security engineering

Agile methodologies

VPN technologies

Routing & switching

Tools

Palo Alto firewall

Infoblox IPAM

F5 LTM/GTM

Job description

As a preferred supplier to one of our biggest Financial Client, I am seeking for a Senior Network & Security Engineer for a Amsterdam, Netherlands. Senior Network & Security Engineer responsible for implementing and maintaining secure and scalable network and application delivery solutions within company’s hybrid infrastructure. Contributed to IPC migrations, support of Lifecycle Management (LCM) projects, and implementation of new functionality, ensuring compliance with company standards, Agile ways of working, and operational stability.

Key Responsibilities

• Implemented Palo Alto firewall configurations (Panorama GUI & CLI), including policies, NAT, and zone configurations.
• Managed Infoblox IPAM (IP allocation, subnet management, DNS updates).
• Configured F5 LTM/GTM: VIPs, pools, pool members, health monitors, and iRules for traffic steering and persistence.
• Implemented VPN (site-to-site) and leased line connectivity.
• Designed and enforced router ACLs for segmentation and traffic control.
• Supported LCM projects by implementing required network and security changes.
• Delivered new functionality including new VIPs, routing setups, and security enhancements.
• Supported IPC migrations with end-to-end connectivity and security implementation.