Full-Stack Web Apps
Production-grade MERN & Next.js applications with reusable, component-driven architectures and clean code.
- React, Next.js, TypeScript
- Node.js, Express, NestJS
- SSR / SSG / ISR / Server Actions
Senior Full-Stack Developer with 6+ years building scalable web applications in JavaScript, TypeScript, React, Next.js and Node.js. I specialize in AI-powered chatbots, LLM-driven workflows, and real-time omnichannel customer engagement — backed by secure REST and GraphQL APIs.
Full-stack engineering
Remote-shipping clients
For C5M alone (6-yr engagement)
I'm Zeeshan Ahmed — a senior full-stack engineer with 6+ years designing, building and deploying scalable web applications in JavaScript, TypeScript, React, Next.js and Node.js. I currently lead hands-on technical execution across multiple client projects as Acting CTO at Mexil Software Solutions.
My specialty is AI-powered and omnichannel products — chatbot interfaces, LLM-based workflows, and real-time multi-channel customer engagement across web chat, WhatsApp and Socket.IO — backed by secure REST and GraphQL APIs with JWT/RBAC. Strong background in fintech, CRM platforms, and performance optimization with SSR/SSG/ISR in Next.js.
From concept to launch — I provide end-to-end solutions tailored to your goals.
Production-grade MERN & Next.js applications with reusable, component-driven architectures and clean code.
Conversational UI, prompt handling and LLM orchestration — bots that handle support, sales and operations end-to-end.
Unified customer engagement across web chat, WhatsApp and messaging — Socket.IO, Redis Pub/Sub, conversation routing.
Secure REST and GraphQL APIs with authentication, authorization and role-based access — modeled across MongoDB, Postgres, MySQL.
Admin systems, CRM platforms and payment workflows — Stripe, PayPal and Plaid integrations at the API level.
SSR, SSG and Server Actions in Next.js for speed and SEO — backed by automated Playwright, Jest and Cypress test suites.
A modern stack chosen for performance, scalability, and developer joy.
A selection of real-world projects I've designed, built, and shipped.
Multi-country handyman-services group. Architected the Omnichannel System, AI Voicebot (Azure OpenAI, FreePBX, Voipsun), Chatbot (FastAPI/Python), HM Mobile & Desktop App, AI Pricing Calculator and SMS AI Review automation.
End-to-end unified-communications platform — Asterisk PBX with multi-tenant routing, Voipsun call-centre, WhatsApp/Messenger/Omnichannel inbox, live agent console, IVR builder, queues, call recording, analytics and CRM hooks.
Visual Google Ads automation platform (similar to n8n) — drag-and-drop ad-flow designer, OpenAI/ChatGPT multi-model routing, conditional logic, webhooks, knowledge-base training and role-based team workspaces.
AI voicebot for inbound and outbound calls — real-time STT/TTS, LLM-driven conversation engine, Twilio + Asterisk SIP integration, appointment booking, lead qualification, multi-language, transcripts and CRM sync.
Production-grade AI chatbot deployed across websites, WhatsApp and Messenger — ChatGPT intent engine, custom knowledge-base training, live-agent handover, ticketing, lead capture, payment links and A/B flows.
Long-running engagement with a US digital-media corporation — delivered 11 platforms: eksplode! EAC & VAC marketing, Decade 2 Publishing, eMoney fintech, Galaxy & Impact Records streaming, Gallery Aurora, Titan Gaming, Ludo Game and a law-firm site.
Enterprise real-estate management platform — multi-role admin, agent CRM, Google Maps integration, reporting dashboards and a price-matrix engine.
AI-driven recruiting platform integrating ChatGPT for candidate evaluation, with payment processing and enterprise admin tooling.
Connected-health platform integrating Withings devices, patient and doctor portals, real-time chats and a clinical admin module.
Peer-to-peer trip exchange platform across web and mobile — user, manager and admin panels on Node.js.
Laravel-powered e-commerce platform with management application and consolidated admin panel across two storefronts.
Property-management web application for a UAE-based firm built on Node.js and MongoDB.
Online learning academy with structured courses, instructor profiles, student enrolments, lesson content delivery and integrated payments.
National contest platform with phased competitions, Stripe and PayPal billing, Cloudinary file management and a multi-role admin suite.
Employee & tooling management system for an Australian construction firm with email notifications and document workflows.
Niche e-commerce platform with Stripe payments, admin-driven catalogue management and a complete user account system.
End-to-end physician scheduling — patient booking flow, doctor calendars and a full administrative back-office.
Laravel platform covering courses, teachers, students, fees, assignments and video lectures from a single admin module.
React Native companion app to the web platform, backed by a Node.js API and MySQL data layer.
Course marketplace with Vimeo integration, instructor and sub-admin roles, and full CRUD over courses, videos and users.
Multi-role auction web app with separate bidder, seller and admin panels built on Node.js and MySQL.
Online tournament-management platform with team and score management, user dashboards and PayPal checkout.
Earning platform implementing binary and 2×4 matrix tree structures with payment gateways, profile management and a tasking module.
Member portal with task management, role-based admin and a 2×4 matrix tree organisation implementation.
Subscription-based listings platform — admin moderation, listing limits, payment gateways and user account management.
Interactive web app sending images to a Python / Flask service running TensorFlow GAN models, with an admin panel and AJAX pipelines.
User and admin portal for document management — each user gets a private workspace with administrative oversight across all accounts.
Welcoming chatbot with thread-aware notification delivery designed for high-volume customer-support use cases.
Date-driven re-ordering module that automatically refreshes job listings to keep recently updated roles surfaced first.
City-by-city services platform (cleaning, gardening, and more) with full CRUD over service categories and providers.
Product-management web application that operates on top of the HomegrownPros storefront, paired with a unified Laravel admin panel.
A series of brochure and corporate websites: Intelligent Web Works, IT-MSP, GuitarLearn, CGCF Cares, Partnered in Purpose and the Okra Network.
High-converting lead-generation pages: Ghostbot, AllInAdvisors, Success n Recruiting, Cover the Truck, Mintjar and Alcobond.
Branded e-commerce experiences including Comfy Homes (UK furniture) and Luxurus (lifestyle), with theme customisation and conversion tuning.
Pixel-perfect PSD, Figma and XD to responsive HTML/CSS conversions delivered for agency clients across multiple sectors.
Re-engineered Google Form into a chat-style, two-party conversation flow complete with animations and a custom design system.
Lead full-stack development and technical execution across multiple client projects. Architect scalable systems with React, Next.js, TypeScript, Node.js and MongoDB. Built omnichannel customer-engagement features unifying web chat, WhatsApp and messaging with real-time WebSocket / Socket.IO routing. Designed AI-powered chatbot features with LLM orchestration and prompt handling. Maintain secure REST & GraphQL APIs with JWT/RBAC. Applied SSR, SSG and Server Actions in Next.js plus Redis caching for responsiveness. Delivered fintech, CRM and payment workflows in agile, remote-first teams.
Built production-grade MERN applications with reusable, component-driven architectures. Developed responsive UIs in React, TypeScript, Tailwind CSS, Material UI, Ant Design, Bootstrap and DaisyUI. Implemented scalable state management with Redux Toolkit and Context API. Designed REST & GraphQL APIs with Node/Express across MongoDB, PostgreSQL, Supabase and Firebase. Integrated Stripe, PayPal and Plaid at the API level. Owned automated E2E testing (Playwright) and unit testing (Jest, Mocha).
Developed backend features in Node.js and JavaScript; assisted with API development, schema updates and third-party integrations. Fixed bugs and improved system stability, supporting testing and deployments. Gained hands-on experience with Git, Agile workflows and secure coding practices.
A foundation built through curiosity, hard work, and continuous learning.
National University of Sciences & Technology — Pakistan's premier engineering institution. Specialized in software engineering, web technologies, databases and algorithms; built the analytical foundation behind every system I ship today.
Have a project, a question, or just want to say hi? Drop a message — I usually reply within 24 hours.