Lahiru Sandaruwan Liyanage

Senior DevOps Engineer

DevOps Engineer with experience designing CI/CD pipelines, Infrastructure as Code, and container orchestration on AWS. Maintained 99.9% uptime across government and commercial production stacks serving Sri Lankan digital platforms. Builds observable, secure systems that accelerate developer velocity.

Core Skills

Experience

GovTech — Sri Lanka Government IT

Senior DevOps Engineer • Colombo
Jun 2026 – Present
Tech: AWS (EC2, S3, CloudFront, Route 53, IAM, VPC), Docker, Kubernetes, Terraform, Ansible, GitHub Actions, GitLab CI, Prometheus, Grafana, Nginx
  • Lead infrastructure and deployment operations for Sri Lankan government digital services, maintaining 99.9% uptime and security compliance across critical public-facing platforms serving large user bases.
  • Design and maintain CI/CD pipelines with GitHub Actions and GitLab CI, reducing release cycles for government application teams.
  • Manage AWS environments spanning EC2, S3, CloudFront, IAM, and VPC, implementing least-privilege access and cost-optimized architectures.
  • Containerize workloads with Docker and orchestrate production services on Kubernetes, improving resource utilization and deployment consistency.
  • Provision infrastructure with Terraform and Ansible, enforcing repeatable, audit-ready deployments across multi-environment stacks.
  • Deploy Prometheus and Grafana monitoring with proactive alerting, cutting incident response times and maintaining service reliability targets.

Web Lankan

DevOps Engineer • Nugegoda
Oct 2024 – Jun 2026
Tech: Jenkins, GitHub Actions, GitLab CI, Docker, Docker Swarm, Kubernetes, AWS (EC2, S3, CloudFront, Route 53, IAM), Nginx, Bash, Python, Grafana, UptimeRobot, n8n
  • Orchestrated deployments across 5 technology stacks (WordPress, PHP, React, Node.js, Laravel) with staging gates and rollback plans, achieving near-zero-downtime releases for production sites including sriyani.lk, sarasavi.lk, and lankahospitals.com.
  • Designed end-to-end CI/CD pipelines with Jenkins and GitHub Actions, cutting release failures with quality gates and manual approval steps.
  • Standardized Docker environments across dev/staging/prod and orchestrated services with Docker Swarm, eliminating environment drift across the deployment pipeline.
  • Administered AWS workloads across EC2, S3, CloudFront, Route 53, and IAM; optimized VPC and security group configurations for performance and cost efficiency.
  • Established proactive monitoring with Grafana and UptimeRobot, cutting MTTD and maintaining 99.9% uptime across all production systems.
  • Evaluated and piloted Kubernetes for container orchestration, producing an adoption report that guided the platform roadmap.
  • Built automated workflows with n8n AI agents and managed deployments across Linux and Windows servers, ensuring reliable uptime and consistent releases.
  • Provided support across 3 channels (email, phone, remote) and managed engineering workflow in Jira, improving sprint delivery and cross-team collaboration.

Experience (continued)

3CS

Associate DevOps Engineer • Colombo
Jan 2024 – Oct 2024
Tech: Docker, Docker Compose, Docker Swarm, DigitalOcean, GitHub Actions, Nginx, Apache, MySQL, Bash, Python
  • Managed WordPress and PHP websites on Linux and Windows servers, maintaining uptime, applying security patches, and resolving incidents.
  • Reduced hosting costs and improved performance by migrating workloads to optimized DigitalOcean instances with tuned CI/CD pipelines.
  • Built containerized environments with Docker and Docker Compose for reproducible deployments and scalable service management.
  • Executed zero-downtime website migrations between customer, staging, and production servers using GitHub Actions automated deployment pipelines.
  • Authored Bash and Python scripts to eliminate repetitive tasks, reducing manual effort and human error.

3CS

Trainee DevOps Engineer • Colombo
May 2023 – Dec 2023
Tech: GitHub Actions, Git, Linux, AWS S3, Nginx, Apache, Grafana, Prometheus
  • Built automated deployment pipelines with GitHub Actions, accelerating release frequency and cutting manual deployment overhead.
  • Created automated backup and restore systems integrated with AWS S3, ensuring reliable data recovery and minimizing potential data loss.
  • Provisioned Linux servers with Grafana and Prometheus monitoring, enabling real-time visibility into production server health.

DSG Minecraft Server

System Engineer & Owner • Remote
Feb 2020 – Jan 2022
Tech: Terraform, Ansible, Docker, Prometheus, Grafana, AWS, Azure, GCP, OVH
  • Founded and operated Sri Lanka's popular DSG Minecraft community server, sustaining 100+ concurrent players with near-zero downtime over 2 years.
  • Managed multi-cloud infrastructure on AWS, GCP, Azure, and OVH using Terraform and Ansible for repeatable, automated deployments.
  • Containerized game server workloads with Docker for consistent environments and simplified version rollouts.
  • Configured horizontal scaling to handle peak player load dynamically without manual intervention.
  • Deployed Prometheus and Grafana with custom alerting for rapid incident detection and resolution.
  • Implemented proxy-based DDoS mitigation and network security controls to protect infrastructure and player data.
  • Led a remote team of 5, coordinating operations, maintenance, and backups to maintain platform stability.

Open Source Projects

Certifications

Education

Languages

References