Network & Security Infrastructure Engineer

This role supports a high volume of customer-facing applications (balance inquiries, account activity, and related services) through a dedicated service chain. The engineer will build, maintain, and secure the network and infrastructure layer underpinning these services, ensuring reliability, availability, and security, and will work in close coordination with a global support team spanning the US, India, and UK., * Build, deploy, and maintain load balancer, DNS, firewall, and routing infrastructure supporting customer-facing applications

• Monitor infrastructure and system performance; identify, troubleshoot, and resolve issues to reduce mean time to resolution

• Manage SSL/TLS certificate lifecycle across load balancing platforms

• Support change implementation during defined change windows (typically starting at 10 PM)

• Collaborate with a global support model, coordinating handoffs with the India-based team for changes falling outside US working hours (generally after midnight)

• Partner with cross-functional teams, architects, and business stakeholders to align infrastructure work with business needs

• Apply automation and scripting where possible to reduce manual intervention

• Maintain security best practices across firewall and network configurations

• Deep, hands-on expertise in BGP and OSPF (used together in this environment)

• Strong understanding of enterprise routing design and troubleshooting

1. Load Balancing & Certificate Management * F5 load balancers configuration and troubleshooting

• VIP setup and SSL/TLS certificate handling

• GTM (Global Traffic Manager) experience

1. Firewalls * Cisco ASA configuration and support

• Fortigate configuration and support

• (Note: Checkpoint firewalls are no longer in the environment; not required), * Prior experience supporting a customer-facing, production banking or financial services environment

• Comfortable working within an incident-response/on-call-adjacent model with late-evening change windows

• Able to work independently and communicate effectively with global (US/India/UK) team members

• Strong troubleshooting instincts able to “figure things out on the spot “ under production pressure