Lahiru Sandaruwan Liyanage

DevOps Engineer
Matale, Sri Lanka • +94 71 6172 860 • liyanagelsofficial@gmail.com • nooblk-98 • Lahiru • itsnooblk.com

DevOps Engineer with 2+ years of experience designing and operating CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI), Infrastructure as Code (Terraform, Ansible), and container orchestration (Docker, Swarm, Kubernetes) on AWS. Proven track record delivering zero-downtime deployments across production stacks (WordPress, PHP, React, Node.js, Laravel) and maintaining 99.9% uptime SLAs. Builds observable, secure platforms that accelerate developer velocity.

Core Skills

Experience

Web Lankan

DevOps Engineer • Nugegoda
Oct 2024 – Present
Tech: Jenkins, GitHub Actions, GitLab CI, Docker, Docker Swarm, Kubernetes, AWS (EC2, S3, CloudFront, Route 53, IAM), Nginx, Bash, Python, Grafana, UptimeRobot, n8n
  • Orchestrated high-volume deployments across 5 technology stacks (WordPress, PHP, React, Node.js, Laravel) with staging gates and rollback plans, achieving near-zero-downtime releases.
  • Designed and implemented end-to-end CI/CD pipelines with Jenkins and GitHub Actions, integrating quality gates and manual approval steps to reduce release failures.
  • Standardized Docker environments across dev/staging/prod and orchestrated production services with Docker Swarm (scheduling, health checks, service discovery), eliminating environment drift.
  • Administered AWS workloads across 5 core services (EC2, S3, CloudFront, Route 53, IAM); optimized VPC and security group configurations for performance and cost efficiency.
  • Established proactive monitoring with Grafana and UptimeRobot, cutting mean time to detect (MTTD) incidents and maintaining 99.9% uptime SLA across production systems.
  • Deployed and maintained high-traffic Sri Lankan production websites — sriyani.lk, sarasavi.lk, trims.waterboard.lk, lankahospitals.com — sustaining 99.9% uptime under peak load.
  • Evaluated and piloted Kubernetes for container orchestration, producing an adoption report used by leadership to guide platform roadmap decisions.
  • Built and automated business workflows using n8n AI agents, reducing manual operations and improving response times.
  • Deployed and maintained software projects on Linux and Windows servers, ensuring reliable uptime and consistent maintenance schedules.
  • Delivered technical support across 3 channels (email, phone, AnyDesk remote), covering server configuration, security hardening, and incident troubleshooting.
  • Managed engineering work in Atlassian Jira, improving team visibility, sprint delivery speed, and cross-team collaboration.

Experience (continued)

3CS

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

3CS

Trainee DevOps Engineer • Colombo
Dec 2023 – Jun 2024
Tech: GitHub Actions, Git, Linux, AWS S3, Nginx, Apache, Grafana, Prometheus
  • Designed and implemented automated deployment pipelines with GitHub Actions, accelerating release frequency and reducing manual intervention.
  • Built automated backup and restore systems integrated with AWS S3 buckets, ensuring reliable data recovery and minimizing potential data loss windows.
  • Provisioned and maintained Linux servers with Grafana and Prometheus monitoring stacks, 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.
  • Provisioned and managed multi-cloud infrastructure on AWS, GCP, Azure, and OVH using Terraform and Ansible for repeatable, automated deployments.
  • Containerized game server workloads with Docker to enforce consistent environments and simplify version rollouts.
  • Configured horizontal scaling to dynamically handle peak player load, maintaining optimal performance without manual intervention.
  • Deployed Prometheus and Grafana monitoring stack with custom alerting rules, enabling rapid incident detection and resolution.
  • Implemented proxy-based DDoS mitigation and network security controls to protect server infrastructure and player data.
  • Led a remote team of 5, coordinating operations, maintenance windows, and environment backups to maintain platform stability.

Open Source Projects

Certifications

Education

References