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sandaru428_dev

Chamara S

@sandaru428_dev

Full Stack Nextjs and SaaS Developer

Sri Lanka
Inglese, Singalese
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I’m a full-stack Next.js developer specializing in building scalable SaaS platforms, interactive 3D web apps, and AI-powered web applications. Using Next.js, React, TypeScript, TailwindCSS, and Supabase, I deliver clean, optimized code with a focus on speed, SEO, and user experience. My expertise includes complex API integrations (OpenAI/Claude/payments), secure database design, authentication, and pixel-perfect responsive layouts. I write modular, clean code following DRY principles to turn your ideas into production-ready platforms.... Continua a leggere

Competenze

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sandaru428_dev
Chamara S
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

Siti web personalizzati
I will develop a full stack nextjs saas web application
A partire da85 USD / progettoMaggiori dettagli
Applicazioni web full stack
I will build a threejs 3d product configurator or webgl web app
A partire da120 USD / progettoMaggiori dettagli

Portfolio

Esperienza lavorativa

Upwork

Full Stack Developer

Upwork • Lavoratore autonomo

Jul 2025 - Present • 1 yr

At B2U Apps, I design and develop high-performance, full-stack web applications, B2B SaaS platforms, and IoT payment integrations. I oversee the entire software development lifecycle, from initial database design and API implementation to frontend assembly and production deployment. Key Projects & Achievements: - 3D Interactive SaaS Platforms: Developed a complex 3D kitchen design planner (CabEngine) using React Three Fiber and Three.js. Built custom layout algorithms to parse 3D canvas objects, generating instant Bill of Materials (BOM) cost tables and production-ready CAD vector files (DXF) for manufacturers. - Headless E-Commerce: Engineered modern, highly responsive online storefronts (such as skintalks.lk) with fast page load speeds, optimized search engines, and secure checkout systems. - IoT Payment Integrations: Programmed custom C++ firmware for ESP32-based payment confirmation terminals. Integrated matrix keypads, TFT screen controllers, and text-to-speech audio chips to confirm LankaQR merchant transactions offline. - Backend & Security: Configured secure relational database schemas using PostgreSQL (Supabase) and user authentication frameworks (Clerk, NextAuth).