Nadeesha Chathumal
Senior DevOps Engineer at 3Rive Technologies
Colombo, Western Province, Sri Lanka
Summary
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Rockstar🎓
Top SchoolNadeesha Chathumal is a Senior DevOps Engineer based in Colombo with four to five years of hands-on experience architecting and operating cloud-native infrastructures across AWS and Azure. He has driven production-grade automation—implementing Terraform and Pulumi pipelines, GitOps with ArgoCD/GitHub Actions, and migrating workloads to ECS and Kubernetes—while consistently cutting manual effort and cloud costs. Comfortable across the full DevOps stack, he has integrated monitoring and logging solutions (Prometheus, Grafana, Loki, OpenSearch), security tooling (SonarCloud, Cert Manager, Vault), and single sign-on flows between AWS and Azure AD. His background includes platform-building for enterprise customers (Cognite) and telecom-grade system work at Axiata, demonstrating both customer-facing incident response and deep systems troubleshooting. Notably, he converted manual server installs into Ansible roles and automated release pipelines that saved hours of operational time, reflecting a practical focus on developer productivity. He combines an electrical engineering degree with certifications in networking, giving him a systems-oriented approach to cloud operations and observability.
4 years of coding experience
4 years of employment as a software developer
Bachelor's degree Electrical and Electronics Engineering, Bachelor's degree Electrical and Electronics Engineering at University of PeradeniyaCisco Certified Network Associate 200 - 125, Cisco Certified Network Associate 200 - 125 at Vibernets AcademyMathematics, Mathematics at Royal College Colombo
Github Skills (13)
container-image10
golang9
automation9
argocd9
go8
docker8
kubernetes8
argo7
charts4
sa4
helm4
python3
cdf2
Programming languages (3)
Github contributions (5)
chathumal-nad/project-2-python-flask-demoapp
Aug 2023 - Mar 2024
Simple Python Flask web application designed for running in containers for demos
Contributions:2 PRs, 22 pushes, 2 branches in 6 months
chathumal-nad/Jenkins-Zero-To-Hero
Apr 2023 - Jan 2024
Install Jenkins, configure Docker as slave, set up cicd, deploy applications to k8s and much more.
Contributions:2 pushes in 9 months
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