Sr. Consultant, Site Reliability Engineer

Role Summary: The Senior Network & Cloud Infrastructure Engineer is responsible for designing, implementing, operating, and continuously improving highly available and secure network infrastructure supporting Visa's critical platforms and services.

This role requires deep hands-on expertise across cloud and enterprise networking, with responsibility for connectivity, routing, network security, troubleshooting, automation, and production operations. The engineer will work closely with SRE, Cloud, Security, Architecture, and application teams to deliver resilient network solutions and resolve complex production issues. The ideal candidate combines strong traditional networking fundamentals with modern cloud networking and automation skills and is comfortable operating business-critical infrastructure in a 24x7 environment.

All roles require digital fluency, including the ability to work with emerging technologies such as Generative AI tools to support everyday work.

Key Responsibilities:

• Design, implement, and operate highly available network infrastructure across cloud and enterprise environments.
• Design and support AWS networking, including VPCs, Transit Gateway, Direct Connect, VPNs, routing, load balancing, DNS, and connectivity across multiple environments and regions.
• Configure and troubleshoot routing protocols, network segmentation, firewalls, VPNs, NAT, DNS, and load-balancing solutions.
• Support hybrid connectivity between cloud environments, data centers, partners, service providers, and external networks.
• Provide hands-on technical leadership for complex network incidents, troubleshooting connectivity, routing, latency, packet loss, and performance issues.
• Design network solutions with resilience, redundancy, scalability, security, and disaster recovery requirements in mind.
• Implement network infrastructure and configuration through automation and Infrastructure as Code, reducing manual operational activities.
• Build and improve network monitoring, observability, alerting, and capacity management.
• Collaborate with Security, Cloud, SRE, Architecture, application teams, vendors, and telecommunications providers on network designs and implementations.
• Support network changes, maintenance activities, incident response, problem management, and root cause analysis.
• Create and maintain technical documentation, operational procedures, network diagrams, and troubleshooting guides.
• Participate in an on-call rotation supporting critical production environments.

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