Sivapalan Mithushan | Full Stack Developer & Software Engineer
Engineer building scalable web & mobile apps, POS and inventory systems with Next.js, NestJS, React, TypeScript, Node.js, PostgreSQL, and Firebase. Delivered solutions for distributors, conglomerates, and consumer‑goods companies—e‑commerce, POS mobile apps, and dashboards with payment gateways and analytics.
Average client satisfaction increase through technical optimization.
Crafting Digital
Excellence.
I’m Sivapalan Mithushan, a Full Stack Developer focused on building scalable web, mobile, and business software. I’ve worked on online bidding platforms, project management tools, POS systems, inventory management software, delivery dashboards, merchant portals, and e-commerce solutions with payment integration. My experience includes Next.js, NestJS, Node.js, Express, PostgreSQL, Firebase, Supabase, React Native, and PHP/MySQL, with a strong focus on clean architecture, automation, and responsive user experiences. I enjoy turning complex business workflows into reliable software that helps companies operate more efficiently.
Location
Sri Lanka / Remote
Specialty
Full-Stack Web & Mobile Applications
Expertise Stack
A comprehensive set of tools and technologies I've mastered to deliver exceptional digital products.
Professional Journey
A track record of delivering high-impact solutions for world-class organizations and innovative startups.
Freelance Full-Stack Developer
Freelance, Sri Lanka / RemoteDesigning and delivering custom web and mobile software for clients across e-commerce, distribution, hospitality, education, and retail.
- Built showcase websites and e-commerce platforms with responsive design and payment integration
- Developed POS systems for different business types with secure user flows and practical admin tools
- Created distribution management software to handle inventory, sales, and operational workflows
- Delivered hotel management software tailored to client-specific business processes
- Built educational and corporate websites for local and international clients
- Implemented scalable solutions using modern full-stack technologies and cloud-based deployment
Full-Stack Software Developer
Accron Revolutions, Sri Lanka / HybridBuilt and maintained production-grade delivery, POS, and merchant systems with a focus on scalability, automation, and real-time user experiences.
- Developed admin and merchant dashboards for delivery and POS platforms using Next.js and TypeScript
- Implemented role-based access control to secure administrative and merchant workflows
- Built real-time order tracking and status updates with Socket.io
- Designed delivery zone management tools with interactive map integration
- Integrated PayHere payment gateway for subscription-based promotions and automated onboarding
- Reviewed and refined AI-generated code to improve performance, security, and maintainability
Full-Stack Developer
CoulfieEats, Sri Lanka / OnsiteWorked on inventory automation and internal tooling for multi-channel e-commerce operations.
- Built an inventory management system integrated with Daraz and WooCommerce APIs
- Implemented real-time stock synchronization across multiple sales channels
- Designed optimized PostgreSQL schemas and trigger-based workflows
- Developed internal dashboards to improve stock visibility and operational efficiency
Full-Stack Developer Intern
Accron Revolutions, RemoteContributed to POS systems and internal dashboards while gaining hands-on production experience.
- Built responsive UI components using Tailwind CSS and modern React patterns
- Assisted in debugging and resolving production issues
- Collaborated with senior developers on API improvements and feature development
Selected Works
Pushing boundaries through code and design.
Industry Credentials
Verified certifications from leading platforms and institutions.
Got a Vision?
Let's Bring It to Life.
Whether you need a robust web application, a scalable mobile solution, or technical consulting, I'm ready to discuss your next big project.