Kajendran Alagaratnam - Senior Engineer, TypeScript & Go

About Me

Senior Engineer with over 8 years of experience in turning complex problems into elegant solutions and delivering digital products across web applications, API services, and mobile solutions, as well as developer tools (VS Code extensions/CLIs).

Fixing real-world headaches

Journey

Experience spanning across small scale startups to large scale enterprises.

WSO2

Jan 2021 - Present

Building VS Code extensions and CLIs to bridge the gap between local development and the cloud (Choreo/Devant), currently extending the WSO2 Integrator to support seamless cloud deployment and management directly within the IDE.
Drove platform growth through behavioral analytics and A/B testing while contributing to the open-source Ballerina ecosystem to enhance its developer-centric tooling and low-code capabilities.

MSc Software Engineering

Jan 2021 - Nov 2022

Completed a two-year MSc in Advanced Software Engineering awarded by the University of Westminster, specializing in Big Data Analytics, Data Mining, Machine Learning, and the architecture of Concurrent and Distributed Systems.
Developed a machine learning project to predict Ethereum gas prices, analyzing network congestion and historical data to optimize transaction fee estimation on the blockchain.

Axiata Digital Labs

May 2020 - Dec 2020

Spearheaded the frontend engineering effort for ADA (Malaysia), delivering a platform to showcase and pitch their global customer reach to enterprise clients.
Key contributor to the Ncell (Nepal) Retailer App, developing a full-stack ecosystem comprising Node.js microservices, React web applications, and a React Native mobile app.

Linear Squared

July 2018 - Apr 2020

Designed and developed applications in a startup environment that connected users with machine learning forecasting models, helping businesses optimize inventory and reduce operational costs.
Contributed to the full development process, from analyzing requirements and designing interfaces to deploying tools that turned complex data into clear business insights.

Skills

Tools

Golang

TypeScript

JavaScript

HTML

CSS

React.js

React-Native

Node.js

Bun

npm

pnpm

Yarn

Next.js

Express.js

Hono

Expo

Astro

Qwik

Cobra

Echo

Go Templ

Datastar

NX

Rush

Task

Redux

Xstate

Zustand

React-Query

Prisma

GORM

Cypress

Playwright

Jest

Vitest

Storybook

Testify

K6

Docker

AWS

RabbitMQ

Terraform

Pulumi

Serverless Framework

Serverless Stack

Lambda

PostgreSQL

MySQL

SQLite

DynamoDB

MongoDB

Redis

Valkey

Neon

PlanetScale

Xata

Upstash

S3

Webpack

Vite

Rspack

Tailwind

Ant Design

Material UI

Mantine

Styled Components

DaisyUI

Vercel

Netlify

Amplify

Firebase

Cloudflare

Auth0

Cognito

Clerk

Auth.js

REST API

GraphQL

gRPC

TRPC

AsyncAPI

MCP

Kubernetes

Helm

Tilt

Skaffold

Github Actions

ArgoCD

Sentry

Checkly

Site24x7

Prometheus

Grafana

Git

Devbox

Figma

VSC Extensions

Certifications

aws-certified-solutions-architect-associate

Projects

A showcase of projects I've built & contributed to across different technologies and domains

Personal Projects

Projects I've built independently

Slek.link

A high-speed URL shortener with built-in analytics for tracking clicks

Go Templ Datastar RabbitMQ AsyncAPI GORM PostgreSQL Valkey TailwindCSS DaisyUI Devbox Helm Kubernetes Skaffold ArgoCD Dockerhub

GitHub View

Menufic

A digital menu generator for restaurants with active users, built using T3 stack

React Next.js TypeScript Prisma TRPC ImageKit T3 Mantine PlanetScale Vercel NextAuth Playwright Checkly

GitHub View

Targabay

A comprehensive online vehicle marketplace with all the essential features

React Next.js Go gRPC Xata Kubernetes NX ArgoCD Auth0 Playwright TailwindCSS S3 SES DaisyUI Pulumi Devbox Tilt React-Email

GitHub View

Beyojar

A simple notes taking application built using React-Native & Expo

TypeScript React-Native Expo Qwik Zustand Storybook Amplify TailwindCSS styled-System iOS Android

GitHub View

Choreo @ WSO2

Contributions to WSO2's platform-as-a-service for developers

Choreo VS Code

A VS Code extension that simplifies managing Choreo's cloud applications directly within VS Code

Developer Platform TypeScript React VS Code MCP Rush.js Zustand Playwright TailwindCSS

GitHub View

Choreo CLI

A CLI tool with an MCP server for interacting with Choreo via commands, useful in remote or CI environments

Developer Platform Go CLI CI MCP Cobra

View

Choreo Web Console

A web application that manages all Choreo functions, including building, deploying, testing, and monitoring

Developer Platform React.js Typescript Rush.js Material-UI GraphQL

View

Choreo APIs

Various API services written in Go, Typescript & Ballerina to support the functionalities of Choreo platform

Developer Platform Node.js Typescript Express.js Go Ballerina Kubernetes Docker

View

Other WSO2 Projects

Integration and developer tooling contributions at WSO2

WSO2 Platform Extension

A VS Code extension that allows users of other WSO2 extensions easily deploy their code to cloud

Developer Platform Cloud integration Typescript VS Code React.js Zustand TailwindCSS

GitHub View

Ballerina Integrator

A Visual Studio Code extension that provides Ballerina Language support, debugging & graphical visualization

Integration Platform Low Code Platform Ballerina Typescript VS Code React.js Xstate

GitHub View

Micro Integrator

AI powered low-code integration platform for developing integrations easily

Integration Platform Low Code Platform Typescript VS Code React.js Xstate

GitHub View

Devant Console

A developer platform for integration developers to deploy and manage their integrations in the cloud

Developer Platform Typescript React.js Rush.js Material-UI GraphQL

View

Previous Employment

Projects from earlier career experiences

YellowHeart

A mobile wallet and NFT marketplace where users can manage their NFTs, discover, buy, and view tickets

Ethereum NFT React-Native Blockchain React.js Android iOS

View

Forecast Right

A machine learning-powered forecasting and inventory management platform for retail optimization

Machine Learning React.js TypeScript Node.js Python Redux

View

Consumer Insights

A data visualization platform for ADA to showcase consumer reach and engagement metrics to clients

React.js TypeScript Redux Docker Recharts

View

Ncell Retailer App

A mobile platform empowering Ncell retailers in Nepal to efficiently deliver services to customers

React-Native TypeScript React.js Redux Express.js Node.js SQL

View

Retention Squared

A machine learning-powered customer retention platform that helps companies reduce churn

React.js TypeScript Redux Meteor.js Vulkan.js PowerBI

View

DigiLoan

A digital lending platform enabling users to apply for and manage loans effortlessly

React-Native React.js TypeScript Redux Express.js Node.js Android iOS

View

Let's Talk

I’m currently based in Colombo, Sri Lanka. If you want to chat about tech or just say hello, my inbox is always open.

KAJENDRAN

ALAGARATNAM

Senior Engineer, TypeScript & Go

About Me

Fixing real-world headaches

Journey

Skills

Tools

Certifications

Projects

Personal Projects

Slek.link

Menufic

Targabay

Beyojar

Choreo @ WSO2

Choreo VS Code

Choreo CLI

Choreo Web Console

Choreo APIs

Other WSO2 Projects

WSO2 Platform Extension

Ballerina Integrator

Micro Integrator

Devant Console

Previous Employment

YellowHeart

Forecast Right

Consumer Insights

Ncell Retailer App

Retention Squared

DigiLoan

Let's Talk