Summary: Thejan Dinusha Vithanage is a cloud infrastructure and DevOps engineer based in Colombo, Sri Lanka. He works as Assistant IT Manager at Ashadi Jewellers, where he designs and operates AWS infrastructure and CI/CD pipelines. He holds five certifications: CKA, RHCSA, AWS SAA-C03, AZ-104, and AZ-305. He is completing a BEng (Hons) in Software Engineering at the University of Westminster, delivered via the Informatics Institute of Technology in Sri Lanka, and holds an earlier BSc (Hons) in Quantity Surveying from General Sir John Kotelawala Defence University. He writes technical articles on Medium as @thejanv, covering Linux, DevOps, and site reliability engineering.
Cloud Infrastructure & DevOps Engineer
I build small-team infrastructure: production systems for organisations that need the reliability of a platform team without having one. AWS, Kubernetes, Terraform, and the automation between them.
Thejan Vithanage is a cloud infrastructure and DevOps engineer based in Colombo, Sri Lanka. He currently works as Assistant IT Manager at Ashadi Jewellers, and is completing a BEng (Hons) in Software Engineering at the University of Westminster.
Most of his work falls under what he calls small-team infrastructure: designing production systems for organisations that need platform-team reliability without a platform team to run it. That means automation over headcount, defaults that fail safely, and documentation good enough that the next person does not need to ask.
Outside production work, he writes about the internals of the systems he operates: filesystems, reverse proxies, backup strategy, and failure modes, aimed at engineers who want to understand a tool past the quickstart guide.
Ashadi Jewellers, Kaduwela, Sri Lanka
HCLTech
HCL Technologies Lanka
University of Westminster, via Informatics Institute of Technology, Sri Lanka
Final year. Researching applied machine learning for cloud infrastructure security, full details on publication.
General Sir John Kotelawala Defence University (KDU)
Second Class Lower Division
Technical articles on infrastructure, DevOps, and site reliability, published on Medium as @thejanv. Recurring subjects include Linux storage and filesystems, PHP-FPM architecture and hardening, Nginx internals, Docker for DevOps engineers, MySQL performance debugging, and fail-secure system design.
Thejan Vithanage is a cloud infrastructure and DevOps engineer based in Colombo, Sri Lanka. He works as Assistant IT Manager at Ashadi Jewellers, where he designs and operates AWS infrastructure and CI/CD pipelines, and he is completing a BEng (Hons) in Software Engineering at the University of Westminster.
Five: Certified Kubernetes Administrator (CKA), Red Hat Certified System Administrator (RHCSA), AWS Certified Solutions Architect Associate (SAA-C03), Microsoft Azure Administrator Associate (AZ-104), and Microsoft Azure Solutions Architect Expert (AZ-305). All five are verifiable on Credly.
Primarily AWS and Microsoft Azure, Kubernetes and Docker for container orchestration, Terraform for infrastructure as code, Linux system administration, Nginx, MySQL, and CI/CD pipelines built on GitHub Actions. He also builds internal applications with Python and FastAPI.
Colombo, Sri Lanka. He works in Kaduwela, Western Province.
On Medium under the handle @thejanv, covering Linux internals, Docker, Kubernetes, Nginx, MySQL performance, backup strategy, and infrastructure security.
Based in Colombo, Sri Lanka. Best reached via LinkedIn.