Senior Infrastructure Engineer I

American Express is hiring for the role of Senior Infrastructure Engineer 1!

Responsibilities of the Candidate:

• Ensure the reliability, availability, and performance of the entire infrastructure stack including compute, storage, network, and cloud components.
• Lead incident response efforts across the infrastructure stack, coordinating with Application Support, SRE, and Engineering teams to minimize MTTD and MTTR.
• Perform root cause analysis for infrastructure-related incidents and implement corrective actions.
• Develop and maintain automation tools for managing infrastructure resources.
• Collaborate with Engineering teams to plan and execute system upgrades and maintenance.
• Conduct capacity planning and resource management for all infrastructure components.
• Participate in on-call rotations to provide 24x7 support for all critical infrastructure issues.

Requirements:

• Proven experience managing and optimizing a diverse infrastructure stack.
• Extensive knowledge of cloud platforms (AWS, Azure, GCP) and infrastructure as code (Terraform, CloudFormation).
• Familiarity with service mesh technologies (Istio, Linkerd).
• Solid understanding of virtualization (VMware, Hyper-V) containerization (Docker, Kubernetes), and orchestration.
• Understanding of storage solutions (SAN, NAS, cloud storage) and backup systems.
• Strong understanding of network protocols, routing, switching, and firewalls.
• Experience with load balancers (F5, HAProxy, Nginx) and network monitoring tools.
• Experience in DNS management and troubleshooting.
• Experience in network security best practices.