Fayis K — Muhammed Fayis KooniFull-Stack DeveloperBuilding Scalable
SaaS PlatformsFayis, Fayis K, Muhammed Fayis K, Fayis Kooni — Full-Stack Developer Portfolio
I specialize in building production-ready web applications with React, Next.js, and Node.js, delivering scalable, secure, and AI-powered digital experiences.
Expertise & Quality
I combine technical depth with design precision to deliver exceptional digital products that scale.
Scalable Architecture
Clean backend structure using modern frameworks and database optimization for high-performance systems.
Secure Auth Systems
JWT via HttpOnly cookies, Clerk Organizations, and multi-tenant authorization patterns.
Premium UI Systems
Design-focused development with glassmorphism, smooth animations, and high-end interaction patterns.
My Works
A collection of digital products where design meets technical excellence.
Echo — AI Customer Support SaaS
Problem
Businesses need automated intelligent support that integrates into existing platforms without complex setup.
Solution
Built a RAG pipeline using Gemini text-embedding-004 generating 768-dimensional vectors, supporting 3 embed types (HTML, React, Next.js) via a JS snippet that injects a cross-origin iframe with postMessage communication. Tenant data is fully isolated by Clerk orgId.
Real-Time Language Exchange Platform
Problem
Language learners need a way to find native speakers and practice in real time without switching between multiple tools.
Solution
Integrated Stream Chat and Stream Video SDKs with a custom Node.js backend generating secure per-user tokens. Authentication uses HttpOnly JWT cookies to prevent XSS-based token theft, with TanStack React Query managing server state and caching.
Family Tree Generator
Problem
Visualizing complex family structures with multiple marriages and half-siblings requires careful data modeling and performant rendering.
Solution
Designed a 6-table normalized PostgreSQL schema with a dedicated parent_child table linking couple_id to child_id. Transformed flat relational records into a Directed Acyclic Graph using ELK.js layered layout algorithm rendered with React Flow, supporting vertical and horizontal navigation.
Stock Market Dashboard
Problem
Investors need a single place to track watchlisted stocks and receive personalized market summaries without manual research.
Solution
Built a real-time dashboard using TradingView widgets for live price charts and Finnhub API for stock search. Integrated Inngest background jobs with Gemini AI to send daily personalized email digests based on each user's watchlist.
Technical Arsenal
Expertise in building scalable, real-time, and AI-powered systems using modern industry standards.
Frontend
Backend
Database
Tools
Specialized in SaaS Architecture, Multi-Tenant Systems & RAG Pipelines
Strategic Process
How I bridge the gap between abstract ideas and market-ready digital products.
Problem Understanding
Deep diving into business goals and user pain points to establish a solid foundation.
System Architecture Planning
Designing scalable database schemas and efficient API structures for long-term growth.
UI System Design
Crafting a cohesive design language that ensures accessibility, consistency, and premium aesthetics.
Development & Integration
Writing clean, type-safe code and integrating components into a seamless product.
Performance Optimization
Fine-tuning Core Web Vitals, image delivery, and server-side performance for 100/100 scores.
Deployment & Scaling
CI/CD setup and infrastructure monitoring to ensure maximum uptime and reliability.
Engineering with
Precision & Speed
Muhammed Fayis K (Fayis Kooni) is a Full-Stack Developer with hands-on experience building production-ready web applications and SaaS platforms. Known professionally as Fayis K, he has a strong background in React, Next.js, Node.js, and TypeScript — with a proven ability to deliver scalable, secure, end-to-end applications.
Fayis specializes in RESTful APIs, real-time systems using WebSockets, and AI-powered features like RAG pipelines. He focuses on creating seamless user experiences backed by robust, optimized infrastructure.
Education
Bharathidasan University (BDU)
Bachelor of Arts (BA), English
Let's build
the future.
Have an idea for a project or looking for a full-stack developer to join your team? I'm always open to discussing new opportunities.