Hola, I'm Dineth

WELCOME TO MY CORNER OF THE INTERNET

Currently Listening To

Now Playing

About Me

> about_me.info()

> whoami

I'm a passionate DevOps engineer with a love for building and automating infrastructure, creating innovative solutions, and exploring the endless possibilities of technology. From cybersecurity to robotics, I thrive on challenges that push the boundaries of what's possible.

When I'm not glued to my VS Code, you'll find me helping my friends and family navigate the digital world.

> skills.list()

Frontend

Backend

Database

DevOps

Cybersecurity

Robotics

> current_status

Location:Sri Lanka 🇱🇰

Coffee Level:████████░░ 80%

Daydreaming:Always

Status:● Online

> fun_facts.json

• Writes code at 3 AM ✓

• Rides bikes to clear the cache ✓

• Watches way too much sci-fi ✓

• Keeps up with MotoGP and F1 ✓

• Vibing to sad beats ✓

• Writes even sadder stuff ✓

Work Experience

> career_history.log()

DevOps Engineer – Intern

Duo Software (Pvt) Ltd · Facetone · Dialdesk AI

Aug 2025 – Present11 mos

Implemented Infrastructure as Code using Terraform for VMware vSphere and VMware Cloud Director, reducing VM deployment time from hours to minutes with zero-touch provisioning via cloud-init.
Optimised and deployed a PgBouncer + HAProxy + Patroni high-availability architecture for production PostgreSQL clusters on Ubuntu/Debian hosts, validated under simulated high-concurrency call centre workloads using SIPp and FreeSWITCH/OpenSIPS traffic, achieving measurable throughput improvements.
Designed and deployed a private APT package repository hosting 270+ custom-compiled packages (MongoDB, Redis, FreeSWITCH, OpenSIPS, etc.), enabling legacy software deployment on modern Ubuntu/Debian distributions.
Automated deployment of a full observability stack (Grafana, Prometheus, Loki, Promtail) across 14 staging and 19 production servers using role-based Ansible playbooks, achieving complete automated telemetry coverage.

DockerPostgreSQLMongoDBRedisetcdRabbitMQApacheHAProxyKeepalivedFreeSWITCHOpenSIPSUbuntuDebianTerraformAnsiblePatroniPgBouncerGrafanaPrometheusLokiNext.jsFirebaseBashK6VMware vSphereNVIDIA A100

Freelance Web Developer

Fiverr

May 2019 – June 20223 yrs 1 mo

Built and delivered multiple responsive websites for clients across the US, UK, and Europe using HTML, CSS, JavaScript, and Bootstrap with SEO optimization.

HTMLCSSJavaScriptBootstrapSEOResponsive Design

My Education

> academic_journey.log

University of Westminster

BSc (Hons) Computer Science

Sep 2023 - 2027• CURRENT

Informatics Institute of Technology (IIT)

Foundation Certificate in Higher Education – IT

Computer Software Engineering

Sep 2022 - Sep 2023🏆 Distinction

Dharmapala College Pannipitiya

Secondary Education

2019 - 2022

i-GATE College

Primary & Secondary Education

2006 - 2018

Tech Arsenal

> tech_stack.display()

🛠️ DevOps

DevOps & Infrastructure

Docker

Kubernetes

Terraform

Ansible

Consul

Prometheus

Grafana

Vagrant

Cloud & Platforms

AWS

Azure

GCP

Linux

Nginx

Apache

VMware

Cloud-init

Databases & Caching

Redis

PostgreSQL

MongoDB

MySQL

ElasticSearch

RabbitMQ

Kafka

Vault

CI/CD & Automation

Git

GitHub Actions

Jenkins

GitLab CI

ArgoCD

Python

Bash

Packer

← Click arrows to switch views →

Featured Projects

> showcase.render()

Mobile

Featured

Live Demo GitHub

HoldStrong

A privacy-first discipline and personal finance tracker built with Flutter. It helps users track resisted cravings, visualize goal progress, and manage daily income and expenses with local on-device storage.

FlutterDartRiverpodIsar Database

Live Code

Full Stack

Featured

Live Demo GitHub

Whispers Unheard

A React + Supabase platform for Sri Lankans to anonymously share untold stories and unsent messages — a digital sanctuary for emotions that never found their voice.

ReactSupabaseViteNetlifyEmailJS

Live Code

Mobile

Featured

Live Demo GitHub

LinkaPal

A Flutter + Firebase app that connects university students with study partners via smart matching algorithms and intuitive user experience.

FlutterFirebaseGCPDartMobileBootstrap

Live Code

Other Projects

Code Snippet Holder Plasmoid

Desktop

A KDE Plasma widget that allows you to store, organize, and quickly copy code snippets directly from your desktop panel.

LinuxKDEQML+1

Task Manager

Full Stack

A secure, scalable task management app built with Spring Boot, Angular, MongoDB, and Docker. Features full CRUD operations and user authentication.

Spring BootAngularMongoDB+3

Bookstore API

API

A RESTful API for bookstore management with CRUD operations, shopping cart functionality, and order processing built with Java and JAX-RS.

JavaJAX-RSJersey+3

To-Do List Web App

Full Stack

A simple, intuitive to-do list web application built with Node.js, Express, MongoDB, and EJS following MVC architecture.

Node.jsExpress.jsMongoDB+2

Google Keep Plasmoid

Desktop

A sleek KDE Plasma 6 widget for quick access to Google Keep — right from your panel. Built with QML for seamless desktop integration.

KDEQMLQt+1

YouTube Plasmoid

Desktop

A KDE Plasma widget that provides quick access to YouTube directly from your desktop or panel. Perfect for productivity workflows.

KDEQMLQt+1

Instagram Downloader

Desktop

A Python GUI application that enables anonymous Instagram story downloads without marking them as "seen".

PythonTkinterInstCapture+2

LazyTyper

Automation

A user script that mimics natural, human-like typing behavior in Google Docs. Helps with automation while maintaining authenticity.

JavaScriptGoogle DocsUserScript

TabSnark

Browser Extension

A Chrome extension that (gently) roasts you for hoarding tabs like a digital dragon. Built with vanilla JavaScript and humor.

Chrome ExtensionHTML5CSS3+1

Swipe to see more

View All Projects on GitHub

Certifications & Achievements

> credentials.validate()

Featured Credentials

Professional Certificate

Aug 2025

DevOps Professional Certificate

PagerDuty & LinkedIn

DevOpsCI/CDInfrastructure as Code (IaC)

Professional Certificate

Mar 2025

Docker Foundations Professional Certificate

Docker

Docker ProductsContainerization

Professional Certificate

Nov 2024

Career Essentials in GitHub Professional Certificate

Microsoft & LinkedIn

GitGitHub

Professional Certificate

Oct 2023

Career Essentials in Cybersecurity Professional Certificate

Microsoft & LinkedIn

Threat & Vulnerability ManagementInformation Security AwarenessCybersecurity

Program

Mar 2025

SkillUp 3.0 - Industry Survival

Leo Club of IIT

Industry KnowledgeProfessional Development

Award

Aug 2023

Winner - Cutting Edge 2023 - Foundation Level

Informatics Institute of Technology

Project: CleanSri

Project DevelopmentInnovation

Additional Certifications

Technical Certification

Nov 2024

HackerRank - JavaScript Certification

HackerRank

JavaScript

Technical Certification

Nov 2024

HackerRank - Python Certification

HackerRank

Python

Technical Certification

Feb 2024

HackerRank - Java Certification

HackerRank

Java

Total Certifications

Professional Certs

Technical Certs

Awards

Get In Touch

> contact.init()

Let's Build Something Amazing

Ready to turn your ideas into reality? Whether it's a web application, mobile app, or just a chat about technology, I'm always excited to collaborate on innovative projects.

dineth.sewwanda@protonmail.com

Phone

+94 7X XXX XXXX

Location

Colombo, Sri Lanka

Usually responds within 24 hours

Ready to collaborate?

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