Available for freelance & consulting work

Supun Madhuwantha — AI Engineer & Full-Stack Developer

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AI Engineer building intelligent systems, e-commerce platforms, POS solutions, and business automation.

Supun Madhuwantha
About

Engineering intelligence into real products

I currently work as an AI Engineer, building NLP pipelines, LLM-powered features, and automation that solves genuine business problems rather than demos.

Alongside that I freelance on real-world software projects — from POS and inventory systems to e-commerce storefronts and AI-powered tools. I care about clean architecture, fast interfaces, and shipping things that hold up in production.

If you need someone who can take a vague idea and turn it into a working, maintainable system — that's the part I enjoy most. I'm based in Sri Lanka and work with clients locally and worldwide.

5+

Projects Delivered

2+

Years Building Software

100%

Client-Focused Delivery

Skills

The stack I build with

From model to interface — the tools I reach for when shipping intelligent software.

AI / ML

PythonLLMsNLPSimilarity DetectionPyTorchPrompt Engineering

Frontend

ReactNext.jsTypeScriptTailwind CSSFramer Motion

Backend

Node.jsExpressREST APIsPostgreSQLMongoDBFirebase

Tools & Ops

GitDockerVercelFigmaPostmanCI/CD
Featured Work

Projects that shipped

A selection of production systems and AI tools. Repositories are private — happy to walk through the architecture and code on request.

POS

Dewasinghe Jewellery POS

A multi-tenant POS and rental-management system built for a jewellery retailer — barcode-scan checkout, split payments, and a full rental lifecycle with deposits, active loans, and returns tracked through late and damage fees. Server-enforced role-based access spans eight distinct roles, from store managers to individual cashier logins, across multiple store locations.

View case study
Commerce

Dilsh Fashion

A luxury fashion storefront with a client-side virtual try-on tool that lets shoppers preview garments on their own photo without it ever leaving the browser. Backed by a full admin panel for catalog, discounts, and PayHere/COD checkout.

View case study
Commerce

Certified Compounds

A Cloudflare-native storefront and admin back office for a research-compounds brand, with lab-verified Certificates of Analysis, variant/bundle catalog modeling, and a structured claims/RMA workflow with a full audit trail.

View case study

More in the works

New case studies are added as projects wrap. Got one in mind? Let's talk.

Journey

Where I've been building

Present

AI Engineer · Full-time

Designing and shipping AI-driven systems — NLP pipelines, LLM integrations, and intelligent automation that plugs into real business workflows.

Present

Freelance Software Developer · Independent

Building production web platforms for clients: POS and inventory systems, e-commerce storefronts, and custom internal tools end to end.

Earlier

Full-Stack Projects & Research · Academic / Self-directed

Built the bilingual plagiarism detection engine and a series of full-stack products that shaped how I approach architecture and delivery.

Contact

Let's build something intelligent together

Freelance projects, AI consulting, or a full product build — tell me what you're working on.

Prefer direct?

supunmaduwantha400@gmail.com

I usually reply within a day. Include a rough scope and timeline and I'll come back with an approach.