Sr Software Engineer I

About the AWS Public Cloud (Platform Services) Engineering Team American Express Platform Services team is looking for innovators to help us build world-class applications, cloud platforms, and infrastructure supported by integrated CI/CD, observability, and security capabilities. As part of our diverse tech team, you can architect, code, and ship software that makes us an essential part of our customers’ digital lives. Here, you can work alongside talented engineers in an open, supportive, and inclusive environment where your voice is valued, and you make your own decisions on what tech to use to solve challenging problems. American Express offers a range of opportunities to work with the latest technologies and encourages you to support the broader engineering community through open source. And because we understand the importance of keeping your skills fresh and relevant, we give you dedicated time to invest in your professional development. Find your place in technology on #TeamAmex. As the Senior Software Engineer – AWS Public Cloud Platform (Platform Services), you will define and lead Elastic Kubernetes Service (EKS) and other AWS services related to compute, storage, serverless etc. This role requires cross-functional collaboration across engineering, cloud security, network engineering, cloud operations, FinOps and Cloud product to implement resilient, secure, and scalable enterprise platforms. Design and scale production-grade Kubernetes clusters preferably utilizing Amazon EKS. Architect and maintain global cloud infrastructure using Terraform for Infrastructure as Code (IaC). Manage cluster autoscaling and resource optimization using Karpenter. Implement GitOps workflows for continuous delivery using ArgoCD. Implement service mesh capabilities for east-west and north-south traffic using Istio. Deploy, configure, and maintain essential Kubernetes add-ons, operators, and custom controllers. Own the end-to-end Kubernetes upgrade lifecycle, executing zero-downtime cluster migrations and API deprecation updates. Ensure high availability, fault tolerance, and disaster recovery readiness for all production workloads. Monitor, troubleshoot, and resolve complex, deep-stack infrastructure and container networking issues. Optimize cloud spend through strategic sizing, lifecycle policies, and efficient scheduling. Provide technical mentorship to senior and mid-level engineers across engineering teams. Define and enforce infrastructure blueprints, security guardrails, and compliance standards. Collaborate with development teams to streamline containerization strategies and application onboarding. Proactively identify, assess, and mitigate technology, operational, resiliency, and security risks across cloud platform estate, ensuring alignment with enterprise risk management standards and risk appetite. Bachelor’s or master’s degree in computer science, Engineering, or a related field. 10+ years of progressive engineering experience, including 5+ years managing large fleet of Kubernetes or EKS clusters, successfully leading teams responsible for highly reliable, resilient, and enterprise-grade cloud infrastructure. Deep understanding of cloud technologies (such as AWS, Google Cloud) and experience with cloud orchestration and automation tools like Terraform. Experience with DevOps practices and methodologies, including CI/CD pipelines, configuration management, and infrastructure as code. Experience with observability tools such as Prometheus, Splunk, ELK, Dynatrace and CloudWatch. Strong analytical and problem-solving skills, with the ability to troubleshoot complex issues and drive resolution in a fast-paced environment. Excellent communication and leadership skills, with the ability to effectively collaborate with cross-functional teams and influence decision-making at all levels of the organization. Certifications such as AWS Cloud Professional Architect, Kubernetes certified professional or other relevant certifications are a plus.