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

Freelance Developer

2021 — Present

Designing and developing modern web applications for startups and businesses, with a focus on scalable architectures, intuitive user experiences, and high-performance backend systems. Delivered end-to-end solutions ranging from custom business platforms and AI-powered applications to blockchain integrations, while collaborating closely with clients to transform ideas into production-ready products.

Trainee Software Engineer

2024 — 2025

Web3 Genes

Contributed to the development of production-grade Web3 and full-stack applications by building secure backend APIs, integrating blockchain technologies, and implementing scalable features. Worked closely with cross-functional teams, participated in code reviews, optimized application performance, and gained hands-on experience in delivering reliable software using modern development practices.

Education

BEng (Hons) in Software Engineering

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