Osusara Kammalawatta

Osusara Kammalawatta

I am a software engineer with a passion for building scalable and efficient systems.

Experience

Here are some of the companies I have worked with and the positions I have held.

Calcey Technologies

Colombo, Sri Lanka

Full-time

Software Engineer

January 2023 - Present

Associate Software Engineer

April 2022 - December 2022

WriterGate

Remote

Contract

Technical Writer

March 2022 - Present

DirectFN

Malabe, Sri Lanka

Full-time

Software Engineer (Front-end)

December 2021 - April 2022

99x

Colombo, Sri Lanka

Internship

Software Engineer (Intern)

June 2020 - December 2020

Projects

Here are some of the projects I have worked on.

Resource Tool

Calcey Technologies
September 2024 - Present

Resource Tool is an internal project that helps to manage human resources of Calcey.

  • As a front-end developer, I was responsible for implementing the employee management and resource allocation features.
  • Involved in Creating new optimized and reusable front-end components, integrating REST APIs and bug fixes.
React TypeScript

Stampen Media

Calcey Technologies
April 2022 - September 2024

Stampen Media, one of Sweden’s largest media houses, partnered with Calcey to enhance their digital media landscape.

  • As a full stack developer, I was responsible for implementing a new purchase flow which allows users to subscribe to different news sites, e-papers and newspapers.
  • Involved in implementing new optimized and reusable front-end components, integrating third party services, managing back-end code, and implementing unit tests.
  • Also involved in communicating with clients in requirement gathering, agile ceremonies and live demos.
React Next.js TypeScript Node.js AWS PostgreSQL
December 2021 - April 2022

The DirectFN Universal app is a comprehensive financial trading application designed for investors and traders. It provides access to real-time market data, financial news, and analytics across various global stock exchanges.

  • As a front-end developer, I was responsible for implementing the front-end components for the new features and doing front-end customization according to the client requirements.
Ember.js JavaScript

FitSL App

Startup
July 2021 - December 2021

FitSL is a mobile application designed to help users track their fitness goals and progress. It provides a range of features to monitor workouts, track nutrition, and set personalized fitness goals.

  • As a developer, I was responsible for implementing the app UI and logic, integrating Firebase services and integrating PayHere payment gateway.
  • Also involved in UI/UX design and manualtesting the app in different devices.
Flutter Dart Firebase NoSQL
June 2020 - December 2020

The Winning Product Office (WPO) focuses on enhancing the company’s product development capabilities by leveraging data-driven insights, agile methodologies, and collaborative tools to ensure that products meet market demands and client expectations.

  • As a full stack developer, I was responsible for implementing the user dashboard WPO Audit Tool which allows users to manage their software products development process.
  • Involved in developing scalable UI components along with the backend APIs, and managing scripts for AWS CodePipeline to perform deployments.
Angular Gatsby Node.js AWS SQL

Skills

Technologies and tools I work with.

Languages

TypeScript JavaScript Dart

Front-end

React Redux Next.js Astro

Back-end

Node.js Express

Mobile

Flutter React Native

Database

MySQL PostgreSQL MongoDB

Cloud

AWS Firebase

Design

Photoshop Illustrator Figma

Content Creation

Premiere Pro After Effects

Education

My academic background and qualifications.

Sabaragamuwa University of Sri Lanka

BSc (Hons) in Information Systems

2017 - 2022 3.29 GPA

Esoft Metro Campus

Oracle Certified Associated Java Programmer

2017 - 2018

Mahanama College, Colombo

GCE Advanced Level (Mathematics Stream)

2013 - 2015 B, C, S

Mahanama College, Colombo

GCE Ordinary Level

2001 - 2012 7As, B, C

Extra Curricular

Activities and involvement outside academics.

Interests

Things I am passionate about.

Web Development Mobile Development Content Creation Content Writing Music

YouTube Channel

A channel where I share my voices in the head in video format.