Web Development
Building modern, responsive web applications using the latest technologies and best practices.
Let's discussA little about me
A curious mind.A passion for building.
Full-Stack DeveloperMobile DeveloperUI/UX Designer
the person behind the pixels
Uthayarasa Thamilnilavan
01 / Behind the work
I am a motivated and detail-oriented Software Developer with hands-on experience in full-stack web and mobile application development. I am deeply passionate about building efficient digital solutions and continuous learning.
My technical foundation spans across modern frontend frameworks like React.js as well as versatile programming languages and database tools including Java, PHP, C++, and MySQL. From architecting real-time collaboration platforms to engineering dynamic backend management systems, I enjoy applying structured problem-solving skills to turn complex ideas into clean, maintainable code. I am highly adaptable, value strong teamwork, and thrive in fast-paced environments where I can build impactful user experiences and grow as an engineer.
Ideas into reality
Always learning. Always building.
6
Featured projects
21
Skills & technologies
Built with care
Clean, maintainable code with attention to the small details.
Made to perform
Fast, responsive experiences that feel effortless to use.
Designed for people
Thoughtful interfaces, from the smallest screen to the largest.
My Expertise
Technical Skills
A showcase of my technical proficiencies and the tools I use to bring ideas to life.
HTML5
CSS3
JavaScript (ES6+)
TypeScript
React.js
Next.js
Node.js
Express.js
Firebase
MongoDB
MySQL
Git & GitHub
VS Code
Postman
JavaScript
TypeScript
Python
Java
Responsive Web Design
Mobile-First Design
Framer Motion
What I do
Thoughtful design.
Powerful development.
Design, development, and the details in between. Here's how I can help.
UI/UX Design
Creating intuitive and beautiful user interfaces that enhance user experience.
Let's discussMobile Development
Developing cross-platform mobile applications using React Native and Flutter.
Let's discussAPI Development
Building robust and scalable RESTful APIs using Node.js, Express, and Firebase.
Let's discussPortfolio
Featured Projects
A selection of my recent work, showcasing complex problem-solving and clean design.
ThinkSync – Student Community Platform
Built a full-stack social learning and academic networking platform inspired by Reddit, LinkedIn, and Discord. The application enables students to share posts, manage schedules, and collaborate seamlessly in a community-based environment.
React.jsNode.jsExpress.jsMongoDBSocket.IO
The Paws Shop – Pet Supply Management System
Developed an object-oriented Java application designed to streamline pet supply inventory management. Implemented robust data management workflows utilizing file-based storage to enable efficient viewing, adding, and searching of products.
JavaObject-Oriented Programming (OOP)File I/O
LuxeVista Resort – Android Mobile Application
Developed a fully functional mobile application for comprehensive resort management. The system allows users to seamlessly book rooms, reserve premium services, explore exclusive offers, and view local attractions.
JavaAndroid StudioSQLite
FitZone Fitness Center – Dynamic Web Application
Designed and engineered a responsive fitness management website featuring dynamic functionalities. The platform securely supports user login, service registration, dynamic blog posts, and robust administrative control panels.
HTMLCSSJavaScriptPHPMySQL
Ocean View Reservation System
Built a robust hotel reservation management system to digitalize manual booking operations at Ocean View Resort. The system provides secure authentication, room booking management, reservation tracking, and automated billing based on room type and duration. Designed using object-oriented programming principles with structured data handling to ensure reliability and prevent booking conflicts.
JavaOOPFile HandlingMySQLJDBC
My Journey
Every chapter.
A step forward.
The projects, people, and experiences that shape how I build.
- May 2026 — PresentCurrent
Software Intern
Vital Masks · Full-time
Jaffna, Northern Province, Sri Lanka · On-site
Working on frontend and backend development using Next.js, React, TypeScript, Node.js, and MongoDB. Developing and integrating REST APIs and authentication features. Working with Git/GitHub for version control and collaborative…Read the storyClose the story
Working on frontend and backend development using Next.js, React, TypeScript, Node.js, and MongoDB. Developing and integrating REST APIs and authentication features. Working with Git/GitHub for version control and collaborative development. Building and improving real-world software features as part of the development team.
- 2025-01 — PresentCurrent
Freelance Software Developer & Digital Designer
Self-Employed
Kilinochchi, Sri Lanka
E-Commerce & Business Solutions: Designed and engineered custom digital management workflows, handling order processing, customer interaction channels, and inventory requirements for local businesses. Frontend & Branding Execution:…Read the storyClose the story
E-Commerce & Business Solutions: Designed and engineered custom digital management workflows, handling order processing, customer interaction channels, and inventory requirements for local businesses. Frontend & Branding Execution: Developed high-fidelity visual assets, professional logos, and promotional media, translating unique business identities into clean, responsive frontend presentation layers. Full-Stack Optimization: Utilized modern web technologies to build interactive client interfaces, ensuring fast loading speeds, clean UI/UX designs, and optimized asset delivery. Requirements Gathering: Collaborated directly with stakeholders to assess business challenges, scope technical requirements, and deliver tailored software and media solutions.
- Jan 2024 — On Going
Full-Stack & Mobile Developer
Academic & Independent Projects
Kilinochchi, Sri Lanka
Engineered Full-Stack Architectures: Architected and deployed end-to-end applications utilizing the MERN stack (React.js, Node.js, Express, MongoDB) and relational databases (MySQL, SQLite). Implemented Real-Time Systems: Integrated…Read the storyClose the story
Engineered Full-Stack Architectures: Architected and deployed end-to-end applications utilizing the MERN stack (React.js, Node.js, Express, MongoDB) and relational databases (MySQL, SQLite). Implemented Real-Time Systems: Integrated WebSocket connections via Socket.IO to enable live, bi-directional communication channels within collaborative platforms. Designed Mobile & Web Interfaces: Built responsive, user-centric interfaces for mobile (Android/Java) and web applications with a strong emphasis on clean UI/UX paradigms. Developed Core System Logic: Applied robust Object-Oriented Programming (OOP) principles in Java and C# to manage application data state, file I/O operations, and client-server workflows. Integrated Secure Workflows: Built secure user authentication systems and administrative dashboards across multiple web and mobile management platforms.
Building ArcStack
Developer by craft.Founder by ambition.
Alongside my development work, I am building ArcStack — a digital studio helping businesses turn their ideas into websites, web applications, and useful digital solutions.
Visit ArcStackArcStack / Responsive preview
arcstack-web.vercel.app
Website screenshots · Open ArcStack for the live experience
01Build
Thoughtful websites and applications, shaped around real business needs.
02Launch
Responsive experiences, ready for the people who will use them.
03Grow
Ongoing improvements that help a business keep moving forward.
Behind the scenes
Gallery
Get in touch
Great things start with a conversation.
Have an idea, a project, or an opportunity? Let’s turn that first conversation into something worth building.
Let’s connect.
Choose your preferred way to reach me, or leave a message using the form.
Your idea starts here
Let’s make it happen.
Prefer a quick chat? Let’s talk on WhatsApp