Senior Cloud Infra Engineer: AWS, Terraform & EKS

Mastercard; Dublin; On-site; EUR 90,000 - 150,000; Full time

Job summary

Mastercard is seeking a Senior Cloud Infrastructure Engineer in Ireland to design, build, and support secure, scalable AWS platforms. This Terraform-first role focuses on IaC, building reusable modules, and maintaining production-grade cloud infrastructure for mission-critical applications.

You will work with EKS, Packer images, GitHub Actions, and CI/CD pipelines while applying IAM, network, and security best practices.

Qualifications

• Bachelor's degree in Computer Science, Engineering, IT or equivalent.
• 5+ years deploying AWS infrastructure with Terraform.
• Experience developing reusable Terraform modules for IaC.
• 5+ years hands-on AWS experience.
• Strong experience with EKS/Kubernetes.
• Experience building machine images with Packer.
• Experience with CI/CD tooling (GitHub Actions/Jenkins).
• Solid understanding of AWS networking, IAM, VPCs, and security.
• Proficient in Python, Go, or Bash scripting.

Responsibilities

• Design, build, and support secure, highly available AWS cloud infrastructure.
• Develop IaC using Terraform as the primary provisioning tool.
• Build reusable Terraform modules and enforce IaC best practices.
• Build, operate, and optimize Amazon EKS Kubernetes platforms.
• Create and maintain machine images using HashiCorp Packer.
• Automate provisioning and deployments with GitHub Actions, Argo CD, CI/CD pipelines.
• Implement AWS security best practices (IAM, KMS, Secrets Manager).
• Monitor health with CloudWatch, Prometheus, Grafana.
• Troubleshoot AWS, Kubernetes, Linux, networking issues; participate in on-call rotation.
• Develop automation with Python/Go/Bash to improve operations.
• Collaborate with Engineering, Security and Platform teams.
• Document architecture, Terraform standards, and runbooks.

Skills

AWS

Terraform

Kubernetes

EKS

Linux

Python

Go

Bash

CI/CD

Education

Bachelor's degree in Computer Science, Engineering, Information Technology

Tools

Terraform

Packer

GitHub Actions

Argo CD

Jenkins

Prometheus

Grafana

EKS

AWS Networking

Job description

Mastercard is seeking a Senior Cloud Infrastructure Engineer in Ireland to design, build, and support secure, scalable AWS platforms. This Terraform-first role focuses on IaC, building reusable modules, and maintaining production-grade cloud infrastructure for mission-critical applications.

You will work with EKS, Packer images, GitHub Actions, and CI/CD pipelines while applying IAM, network, and security best practices.