About

Backend-focused engineer who builds and operates production systems.

Experience: 6+ years in software engineering including self-learning and projects, with around 1 year in industry.

Recent public build: Spring Boot microservice platform live at microservicefrontend.rumalg.me.

Sri Lanka | [email protected] | +94 789 209 595

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What I Like Working On

  • >Backend architecture
  • >Microservice trust boundaries and gateway design
  • >Concurrency and consistency problems
  • >Failure handling and recovery behavior
  • >Observability-driven operations

Engineering Philosophy

  • >Simple and reliable designs are better than clever complexity.
  • >A system must remain useful when dependencies fail.
  • >Correct behavior under stress matters more than clean demos.

I care more about systems behaving correctly in failure than passing happy-path tests.

Tech Stack

Full tech stack page
KubernetesDockerPodmanLinuxNginxPrometheusGrafanaBlackboxRHELVPS hardeningJavaSpring BootPythonErlangC#.NETPHPReact

Experience

Associate DevOps Engineer / Associate System Implementation Engineer

Omobio (Pvt) Ltd

Dec 2025 - Present

Location: Bambalapitiya, Sri Lanka

  • >Drive Kubernetes migration of SMS Firewall: writing Erlang code changes for K8s clustered behavior and creating K8s manifests/YAML files.
  • >System implementation: deploy and configure SMS Firewall solutions on client environments.
  • >Testbed implementation: maintain test environments for validation and demonstrations.
  • >System recovery and report generation; handling L2 support issues.

Intern DevOps Engineer / Intern System Implementation Engineer

Omobio (Pvt) Ltd

Jul 2025 - Dec 2025

Location: Bambalapitiya, Sri Lanka

  • >Helped the team install and configure SMS Firewall solutions on client environments.
  • >Assisted with resolving customer issues (L2 support).
  • >Helped with coding issues related to the SMS Firewall GUI.

Freelance VPS Administrator & Telegram Bot Developer

Self-Employed

Dec 2020 - Present

Location: Remote

  • >Manage multiple VPS instances: security hardening, patching, backups, and performance tuning.
  • >Servers are accessed through a WireGuard VPN tunnel to a jump server; private servers are not directly exposed to the internet.
  • >Self-host projects like this portfolio and the Cricket Net Reservation API using Docker Compose behind an Nginx reverse proxy.
  • >Build and deploy Telegram bots in Python (Pyrogram/PyroFork-style workflows), including API integrations and media handling.
  • >Containerize services and keep them reliable with monitoring and automation.

Intern Software Engineer

Fourdiv (PVT) Ltd

Nov 2024 - May 2025

Location: Rajagiriya, Sri Lanka

  • >Built internal dashboards using Next.js + Spring Boot, including product/variation uploads and admin-driven employee registration.
  • >Integrated and customized a React order-tracking UI to match client branding and workflow.
  • >Helped migrate an e-commerce frontend from WooCommerce to React + Spring Boot; integrated PayHere/OnePay/KokoPay.

Education

University of Colombo School of Computing

BSc. Information Systems

Aug 2025

NIBM, Kurunegala

Diploma in English

Apr 2023