Network Engineer (A10)

A10 Network Engineer (DV/SC Cleared)

We are seeking an experienced A10 Network Engineer for a 6 month contract, inside IR35, supporting high-security environments. You’ll be working on complex network infrastructure, primarily focused on A10 Networks’ Application Delivery Controllers (ADCs) and security solutions.

This role demands a hands-on engineer with a solid understanding of high availability, load balancing, and Layer 4-7 traffic management, ideally within secure, mission-critical environments.

Key Responsibilities:

• Configure, deploy, and manage A10 Thunder Series devices (ADC, CGNAT, SSLi, etc.)
• Perform system integrations, upgrades, and troubleshooting within live network environments
• Design and implement network solutions tailored for performance, resilience, and security
• Collaborate with cybersecurity, DevOps, and infrastructure teams to ensure seamless operations
• Support firewall, VPN, and intrusion prevention configurations where relevant
• Document all configurations and processes in line with security compliance standards

Essential Skills & Experience:

• Proven experience working with A10 Networks (Thunder ADC, CGNAT, SSL Insight)
• In-depth understanding of networking protocols – TCP/IP, HTTP/S, DNS, SSL/TLS, BGP, OSPF
• Experience with load balancing, application delivery, and traffic optimisation

• Active SC (Security Check) or DV (Developed Vetting) clearance is essential