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Sanath Wickramaarachchi

@sanathwickramaarachchi

DevOps engineer delivering secure, automated AWS/Azure infrastructure, CI/CD, Kubernetes operations, and resilient monitoring.

Sri Lanka

Message

What I'm looking for

DevOps Engineer skilled in AWS, Azure, K8s, IaC (Terraform), CI/CD, cloud networking, monitoring, and production operations.

I’m an experienced DevOps Engineer specializing in designing, automating, and operating enterprise infrastructure across AWS and Azure. I focus on automation, reliability, security, and operational efficiency, with hands-on production support for highly available cloud platforms.

At Persistent Systems, I managed secure Azure networking architectures (Azure Firewall, Application Gateway, VPN connectivity, Private DNS Zones) and operated Azure Kubernetes Service (AKS) plus Azure Container Registry (ACR). I built CI/CD pipelines with GitHub Actions, automated provisioning and configuration using Terraform and Ansible, and improved observability with Prometheus and Grafana.

Previously, as a Site Reliability Engineer at Wiley Global Technology, I supported microservices production across AWS and hybrid environments, operated core AWS services (EC2, ALB/ELB, CloudFront, S3, RDS, Auto Scaling, CloudFormation), and improved troubleshooting using Dynatrace and the ELK stack. I also maintained SOC 2 audit readiness and reduced AWS costs by 25% through rightsizing and optimization. Earlier, at Zaizi Asia, I managed AWS/UK GovCloud infrastructure, enterprise networking, and Linux/Windows/macOS environments while strengthening monitoring, web server operations, and ISO 27001 security practices.

Experience

Work history, roles, and key accomplishments

Current

DevOps Engineer

Current

Persistent Systems

Sep 2022 - Present (3 years 9 months)

Designed and managed secure Azure networking architectures and production-grade AKS/ACR environments. Built Terraform/Ansible provisioning and GitHub Actions CI/CD pipelines, and improved reliability and incident response with Prometheus/Grafana monitoring; also optimized PostgreSQL/MySQL performance, backups, and HA.

Azure Networking Terraform Ansible GitHub Actions Prometheus Grafana PostgreSQL MySQL

Site Reliability Engineer

Wiley Global Technology

Jan 2019 - Jan 2021 (2 years)

Managed and optimized AWS production infrastructure for microservices, operating EC2, ALB/ELB, CloudFront, S3, RDS, Auto Scaling, and CloudFormation Service Catalog. Implemented Dynatrace and ELK-based observability, maintained SOC 2 audit readiness, and reduced AWS cloud costs by 25% through infrastructure rightsizing and optimization.

AWS EC2 Cloudfront AWS RDS CloudFormation Ansible Dynatrace SOC Cost Optimization

Systems Engineer

Zaizi Asia

Jan 2012 - Jan 2019 (7 years)

Managed and secured AWS and UK GovCloud infrastructure (EC2, VPC, Route 53, S3, IAM, RDS, VPN, and CodeCommit) and supported enterprise LAN/WAN connectivity with firewalls, VPNs, switches, and Wi-Fi. Implemented Nagios/Prometheus/Grafana and ELK observability, maintained Linux/Windows/macOS systems and web servers (Apache/Nginx/Tomcat), and supported ISO 27001 compliance and audit readiness.