Site Reliability Engineer

AWS Site Reliability Engineer (SRE)

Job Title: AWS Site Reliability Engineer (SRE)

Location: Hybrid / Connacht

Salary: €100,000

Start Date: ASAP

Overview

We are seeking an experienced AWS Site Reliability Engineer (SRE) to join our infrastructure and cloud operations team. The successful candidate will play a key role in ensuring the reliability, scalability, security, and operational efficiency of our AWS-based platforms and Kubernetes environments.

This role requires strong hands-on experience across AWS infrastructure, automation, incident management, Kubernetes operations, and Infrastructure as Code (IaC) tooling including Terraform and Ansible.

Key Responsibilities

• Manage, maintain, and optimise AWS cloud infrastructure and production environments.
• Support and improve platform reliability, observability, scalability, and performance.
• Troubleshoot critical production incidents and lead issue resolution activities.
• Perform load balancer configuration, monitoring, and troubleshooting.
• Manage infrastructure patching and vulnerability remediation activities.
• Develop and maintain Infrastructure as Code using Terraform modules.
• Automate operational tasks and configuration management using Ansible modules/playbooks.
• Support Kubernetes cluster operations, deployments, upgrades, and troubleshooting.
• Collaborate with engineering and DevOps teams to improve CI/CD pipelines and deployment processes.
• Participate in incident response, root cause analysis (RCA), and post-incident reviews.
• Ensure adherence to security, compliance, and operational best practices.

Required Skills & Experience

AWS & Cloud Infrastructure

• Strong hands-on experience with AWS services including:
• EC2
• VPC
• IAM
• EKS
• Route 53
• CloudWatch
• Auto Scaling
• Load Balancers (ALB/NLB)
• S3
• RDS

Candidates should be able to demonstrate experience with:

• Handling Critical Situations & Priority ManagementExperience managing high-severity production incidents.
• Ability to prioritise business-critical services during outages.
• Strong communication and stakeholder management skills during incidents.
• Experience with incident management frameworks and escalation processes.
• Load Balancer TroubleshootingDiagnosing connectivity, latency, SSL/TLS, routing, and health check issues.
• Experience troubleshooting AWS ALB/NLB configurations and backend service integration.
• PatchingOperating system and infrastructure patch management experience.
• Security patching and vulnerability remediation within cloud environments.
• Experience coordinating maintenance windows and minimising downtime.
• Terraform ModulesStrong Infrastructure as Code experience using Terraform.
• Experience creating reusable Terraform modules and managing multi-environment deployments.
• Familiarity with remote state management and CI/CD integration.
• Ansible ModulesExperience developing and maintaining Ansible playbooks and roles.
• Configuration management and infrastructure automation expertise.
• Ability to automate provisioning, patching, and deployment tasks.
• Kubernetes Cluster Issues & ImplementationHands-on experience supporting Kubernetes clusters, preferably AWS EKS.
• Troubleshooting cluster, node, networking, ingress, and pod-related issues.
• Experience implementing and maintaining Kubernetes environments in production.
• Knowledge of scaling, monitoring, upgrades, and cluster security best practices.

Desirable Skills

• Experience with monitoring and observability tools such as Prometheus, Grafana, Datadog, or ELK.
• Knowledge of CI/CD pipelines and GitOps practices.
• Scripting experience with Bash or Python.
• Familiarity with container technologies including Docker.
• Experience working in Agile or DevOps environments.