Job Specification: Senior Network Engineer

About the Role

A leading IT and Telecoms services provider is seeking a Senior Network Engineer to join their IT Operations team. The successful candidate will play an important role in designing, building, and maintaining network infrastructure across multiple worldwide sites, as well as datacentre and cloud environments. The organization supports a high volume of monetary transactions daily, requiring the highest standards for availability and security.

Responsibilities and Duties

• Design, implement, and maintain complex network architectures, ensuring high availability, security, and performance.
• Manage and optimize Palo Alto Firewalls for network security, traffic monitoring, and threat prevention.
• Manage and optimize Cisco Meraki devices, including switches, routers, and access points, ensuring secure and reliable connectivity.
• Administer and configure cloud networking on AWS, Azure, and GCP, including VPNs, VPCs, and network security groups.
• Manage and optimize the production WAF/CDN infrastructure.
• Implement infrastructure as code using Terraform for network provisioning and configuration management.
• Automate routine network tasks using PowerShell and develop DevOps pipelines to enhance network deployment processes.
• Continuously monitor the availability of the network to ensure uptime and fast incident response.
• Manage and integrate site-to-site IPSEC VPNs with several global partners.
• Troubleshoot and resolve complex networking issues across multiple environments, both on-premises and in the cloud.
• Collaborate with cross-functional teams to ensure seamless integration and management of the network infrastructure.
• Stay up-to-date with emerging network technologies and best practices, continuously recommending improvements and innovations.
• Provide mentoring and guidance to junior network engineers, assisting with their professional development.
• Document network configurations, processes, and procedures to ensure consistency and compliance across the organization.
• Participate in an on-call roster to support the business outside of normal working hours.

Required Qualifications and Experience

• Bachelor's degree in IT, Engineering, or a related field.
• Proven experience as a Senior Network Engineer or in a similar role with a focus on enterprise-level networking.
• Advanced knowledge of networking fundamentals (e.g., TCP/IP, routing, switching, subnetting, BGP, IPSEC VPNs).
• Hands-on experience with Palo Alto Firewalls and security policy management.
• Hands-on experience with enterprise-level Cisco networking hardware.
• Strong experience with cloud WAF/CDN networks such as Cloudflare.
• Strong experience with cloud networking solutions in AWS, Azure, and GCP.
• Experience in DevOps practices and infrastructure automation using Terraform and PowerShell.
• Experience with network monitoring tools (e.g., SolarWinds, Nagios, PRTG, Datadog).
• Strong troubleshooting and problem-solving skills in a multi-platform, multi-cloud environment.
• Ability to work both independently and collaboratively in a fast-paced environment.
• Excellent communication skills with the ability to explain complex technical issues to non-technical stakeholders.

Preferred Qualifications and Experience

• Certifications such as Palo Alto Networks Certified Network Security Engineer (PCNSE), Cisco CCNP, or AWS/Azure/GCP Certifications.
• Experience with SASE tools such as Prisma Access.
• Experience with Cisco Meraki networking hardware and cloud-based management platforms.

GCS is acting as an Employment Agency in relation to this vacancy.