About Me

Hello! I’m Dinuka Wanniarachchi, a Senior DevOps Engineer with 4+ years of experience building and scaling cloud-native platforms on AWS and GCP. I specialize in Kubernetes, CI/CD, and GitOps, and I enjoy designing reliable, automated infrastructure that helps teams ship faster with confidence.

I thrive in fast-paced, collaborative environments where I can take ownership, improve systems through automation, and mentor engineers. I’m passionate about secure, observable, and scalable platforms, and I focus on creating great developer experiences by removing friction and building tools that just work.

Skills
AWS

AWS

GCP

GCP

ArgoCD

ArgoCD

Terraform

Terraform

Helm

Helm

Linux

Linux

Bash

Bash Scripting

Python Scripting

Python Scripting

Datadog

Node.js

ELK

ELK

Grafana

Grafana

Prometheus

Prometheus

Git

Git

GitHub

GitHub

Docker

Docker

Kubernetes

Kubernetes

Harbor

Harbor

Jenkins

Jenkins

Concourse

Concourse CI

Nginx

Nginx

Work Experience

May 2024 - Present

Sysco Labs
Senior DevOps Engineer

Supported and enhanced internal developer platforms by improving CI/CD performance, automating Kubernetes and OS upgrades, and implementing scalable, secure infrastructure solutions. Built Helm charts and automated secret management for efficient deployments. Contributed to high-availability platform architecture, authored operational documentation, and led a 5-member support team to ensure reliable platform operations and strong cross-team collaboration.

Nov 2022 - May 2024

Axiata Digital Labs
DevOps Engineer

Managed and optimized Kubernetes-based production environments across AWS and GCP for high availability, scalability, and cost efficiency. Implemented monitoring with Prometheus, Grafana, and Kibana, and applied Nginx rate limiting for traffic control. Enhanced CI/CD pipelines with security and quality checks using SonarQube and WhiteSource, resolved deployment issues, and automated vulnerability fixes and operational tasks with Bash.

Jan 2022 - Nov 2022

iLabs
DevOps Engineer

Led AWS infrastructure management with automation, security, and scalability best practices. Built and maintained CI/CD pipelines using ArgoCD, Jenkins, and GitLab to streamline deployments. Implemented monitoring with Prometheus, Grafana, and Site24x7 to enhance reliability. Automated routine tasks with Bash/Python, managed GitHub/GitLab workflows for efficient collaboration, and mentored team members to strengthen DevOps capabilities.

Feb 2021 - Jan 2022

HCL Sri Lanka
Infrastructure Analyst

Configured and maintained Prognosis tool for monitoring AV devices in the assigned project. Efficiently managed incoming cases within SLA targets.

July 2020 - Dec 2020

EFutures (Pvt) Ltd
Trainee System Engineer

Installed, configured, and maintained operating systems and applications to ensure secure, stable environments. Managed multi-cloud infrastructure across AWS and GCP for optimal performance and cost efficiency. Ensured high availability and reliability through proactive monitoring, redundancy planning, and effective incident response.

Educational & Professional Qualifications
GCP ACE
ACE
Associate Cloud Engineer

GCP [Google Cloud Platform]

Successfully Completed - View Certification

CKA
CKA
Certified Kubernetes Administrator

CNCF [Cloud Native Computing Foundation]

Successfully Completed - View Certification

RHCSA
RHCSA
Red Hat Certified System Administrator

RedHat

Successfully Completed - View Certification

AZ-900
AZ900
Microsoft Certified: Azure Fundamentals

Microsoft Azure

Successfully Completed - View Certification

2025 - Present

Master's Degree
MSc in Computer Science specialized in Cloud Computing

University of Moratuwa, Sri Lanka

2016 - 2020

Bachelor's Degree
BSc (Hons) in Information Technology specialized in Cyber Security

Sri Lanka Institute of Information Technology (SLIIT)

Let’s Connect
Email


dinukaw95@gmail.com