Open to opportunities

Hello, I'm

Dhanuja Thishakya

Full Stack Engineer

Transforming ideas into scalable digital products.

I build scalable web applications, AI-powered platforms, and cloud-native systems. My work combines modern engineering practices with emerging technologies like AI, blockchain, and distributed systems.

View My Work

Connect

Sri LankaSoftware Engineering GraduateUTC +5:30

About me

My Background

A glimpse into my journey, skills, services, and the technologies I use to build robust digital solutions.

Identity

Hi, I'm Dhanuja

I build software that solves real business problems from scalable backend APIs and AI-powered platforms to blockchain applications. My focus is writing clean, maintainable systems that continue to work long after launch.

LATEST PROFILEGrab my Resume

DOWNLOAD CV

What I Build

SaaS PlatformsMulti-tenant business applications.

AI ApplicationsRAG systems, LLM integrations & automation.

Backend SystemsREST APIs, authentication & scalable architecture.

Modern Web AppsResponsive Next.js experiences.

Blockchain SolutionsSmart contracts & decentralized apps.

Standard:Production Grade

Experience & Education

Experience

Associate Software Engineer

Aug 2026 — Present

Simplebooks

Freelance Developer

2021 — Present

Designed and developed custom web applications for startups and businesses with a focus on scalable architectures and intuitive UX. Delivered solutions ranging from business platforms to AI and Web3 integrations.

Trainee Software Engineer

2024 — 2025

Web3 Genes

Contributed to Web3 and full-stack applications by building secure backend APIs and implementing blockchain features. Participated in code reviews and performance optimizations.

Education

BEng (Hons) in Software Engineering

First Class Honours

University of Westminster, UK

2022 — 2026

Primary & Secondary Education

GCE Advanced Level (C Maths + ICT)

Rahula College, Matara

2008 — 2021

Focus:Striving for engineering excellence

Tech Stack

Modern Technologies

Next.js

React

Node.js

NestJS

PostgreSQL

MongoDB

Python

Docker

AWS

Ethereum

Solidity

Polygon

Next.jsReactNode.jsNestJSPythonPostgreSQLMongoDBDockerAWSEthereumSolidityPolygon

CURRENTLY BUILDING

Fitness Booking

Fitness class booking platform

NovaDesk

AI-powered RAG SaaS Platform

ERPNext HR

Custom HR Management System

Learning:Kubernetes • AI Agents

Impact

0+Projects Delivered

0+Years of Continuous Learning

0%Detail-Oriented Development

∞Curiosity for Building

Drive:Creating meaningful digital experiences

Crafting Digital Experiences—Building Scalable Systems—Engineering Modern Interfaces—Creating Smooth Interactions—

Projects

Selected Work

A curated collection of web applications, experiments, and developer tools built with modern tech.

KrozzFit Surf Coast

Designed and developed a premium fitness website, class booking system, and admin dashboard for KrozzFit Surf Coast. Features seamless PayHere payment gateway integration and a robust backend infrastructure.

Next.jsTypeScriptNestJSPostgreSQL+2 more

Live Demo

Sri Lanka Car Driver

Designed, developed, and optimized full site SEO for Lakdinu Tours — a private car and driver hire service in Sri Lanka. Built for high search visibility, responsive performance, fast loading, and direct WhatsApp / booking conversion.

Next.jsTypeScriptTailwind CSSSEO+1 more

Live Demo

AIVA

A stunning, vibrant VS Code dark theme featuring Aiva—an interactive coding companion mascot that dynamically reacts to your diagnostics and code errors in real-time.

TypeScriptVS Code APINode.jsCSS

Source Live Demo

Drunken Monkey

Developed a premium marketing website for a mobile cocktail and bar service featuring elegant animations, responsive design, event-focused content, and a luxury visual identity that showcases services and brand experience.

Next.jsTypeScriptTailwind CSSFramer Motion

Live Demo

NFT Collection Generator

Built a customized NFT collection generation engine based on the HashLips Art Engine. Extended the original implementation with custom generation logic, metadata handling, rarity configuration, and mint-ready collection workflows for production NFT projects.

Node.jsJavaScriptCanvasNFT+1 more

Source

Portfolio V1

My first personal portfolio website, custom-built to showcase my early creative work, web experiments, and technical skills with a clean, lightweight layout.

HTMLCSSJavaScript

Source Live Demo

Writing

Featured Articles

Thoughts, tutorials, and deep dives on engineering scalable applications and backend architectures.

Jul 202622 min read

EthereumZero-KnowledgeDeFiPrivacypERC-20

PERC-20: Can Ethereum Finally Have Private Tokens Without Breaking DeFi?

Exploring pERC-20 (EIP-8287), a privacy-native Ethereum token standard using note-based UTXO models and zero-knowledge proofs while preserving total supply verifiability and DeFi compatibility.

READ ARTICLE

May 5, 202614 min read

NestJSArchitectureRequest LifecycleBackend

NestJS Request Lifecycle Explained: Guards, Pipes, Interceptors & More

Understand the precise execution order of middleware, guards, interceptors, pipes, and exception filters in NestJS to master custom request-response handling.

READ ARTICLE

Aug 24, 20248 min read

NestJSMongoDBMulti-TenancyBackend

Implementing Multi-Tenant Architecture with NestJS and MongoDB

Learn how to build a robust, scalable multi-tenant SaaS application backend. Explore connection pooling, tenant identification strategies, and database isolation levels using NestJS and MongoDB.

READ ARTICLE

Lab