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Hello, I'm —

Ahmad Hassan

Senior full-stack developer and team lead with 10+ years shipping production-grade web apps and enterprise SaaS platforms used by 200,000+ users. I work remotely with US & UK teams as a React/Next.js and Node.js developer, building AI chatbots (RAG), SaaS products, and AWS/Docker deployments.

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Years
Experience

0k+

Users
Served

0k+

Stack Overflow
Reach

Engineers
Led

10+Years

Next.js · Node

AI / RAG Systems

Senior Full-Stack Dev

Based in Lahore, Pakistan

Next.js

React

TypeScript

Node.js

PostgreSQL

OpenAI

Chroma

Docker

AWS

Redis

Laravel

GraphQL

Lahore, PKTeam Lead10+ YearsOpen to Work

About Me

Building real
products, not just code

I turn complex business requirements into fast, maintainable systems that hold up in production.

I'm a Senior Full-Stack Developer and Team Lead based in Lahore, Pakistan, working remotely with companies in the US and UK. I have 10+ years of experience shipping production-grade web applications across healthcare, real estate, ed-tech, and marketing.

My current focus at SLTech is building AI-powered systems — including a production RAG chatbot using OpenAI embeddings and Chroma Cloud, agentic workflows, and a custom Coolify OAuth shim for prompt-driven deployments via Claude MCP.

I've led teams of 6+, delivered platforms serving 200,000+ users, and won multiple Employee of the Month awards. I believe in clean architecture, real performance gains, and software that ships.

Years of professional full-stack development

0k+

Users served across production platforms

Engineers led at ArhamSoft across 4 products

0k+

Stack Overflow reach, 365 reputation

What I Do

How I Can Help

Available for remote contract and full-time work: full-stack web development, Node.js APIs, AI chatbot integration, and technical leadership.

⚛️

Full-Stack Web Development

React · Next.js · TypeScript

Fast, SEO-friendly web apps with Next.js and React — from MVP to production, including auth, payments, and dashboards.

🛠️

Node.js API & Backend

Node.js · Express · PostgreSQL

REST and GraphQL APIs, multi-tenant SaaS backends, and database design that holds up under real traffic.

🤖

AI Chatbots & RAG

OpenAI · Claude · LangChain

Production AI chatbots and assistants grounded in your own data, with tools, guardrails, and feedback loops. See an example.

☁️

DevOps & Deployment

AWS · Docker · CI/CD

Docker, GitHub Actions, AWS and Coolify setups that make deployments routine instead of risky.

⚡

Performance & Scaling

Redis · Query tuning

Slow API or page? I find the bottleneck and fix it — caching, indexes, and lazy loading. How I cut response times ~40%.

👥

Team Lead & Remote Developer

US & UK teams

Join your team as a senior remote developer or tech lead — code reviews, mentoring, and reliable delivery across time zones.

Expertise

Core Technical Skills

10+ years across the stack — from React interfaces and Node APIs to vector databases, container orchestration, and the teams that ship them.

⚡

Full-Stack Development

React · Next.js · Node

95%

End-to-end product delivery — SSR frontends, REST/GraphQL APIs, auth, payments, and everything in between.

BeginnerExpert

🧩

System Architecture

Multi-tenant · Scale

90%

Multi-tenant systems with JWT auth, RBAC, and PostgreSQL/MySQL schemas tuned for high-throughput API loads.

BeginnerExpert

🤖

AI / RAG Integration

OpenAI · Chroma · MCP

85%

Production retrieval pipelines — chunking, embeddings, vector search, agentic tool calls, and rolling summaries.

BeginnerExpert

🧭

Team Leadership

Mentoring · Delivery

85%

Led 6+ engineers across four concurrent products, owning sprint planning, code review, and release quality.

BeginnerExpert

☁️

DevOps & Infrastructure

AWS · Docker · Coolify

80%

AWS server management, SSL and HTTP/2 setup, containerised deploys, and prompt-driven releases through Coolify.

BeginnerExpert

🚀

Performance Engineering

Redis · Query Tuning

88%

Cut API response times roughly 40% at TGG through Redis caching, query optimisation, and lazy loading.

BeginnerExpert

Frontend

Next.jsReact.jsTypeScriptVue.jsTailwind CSSGutenberg

Backend

Node.jsExpress.jsGraphQLPHPLaravelFastAPI

Databases & DevOps

PostgreSQLMySQLMongoDBRedisDockerAWSCoolifyPlesk

AI & Integrations

OpenAI APILangChainChromaYOLOTwilioStripeFacebook CAPI

Career

Work Experience

A track record of leading teams and shipping products across healthcare, real estate, ed-tech, sports, and marketing.

Sep 2025 – Present

Full-Stack Developer

SLTech — Real Estate & AI Verticals

Remote · US-based company

Built a production RAG chatbot for REConnect using OpenAI embeddings, Chroma Cloud, and Claude Haiku 4.5 with agentic capabilities including MLS lookups, role-aware tone, and rolling conversation summaries.
Built a Coolify OAuth shim (Node/Express) bridging Claude MCP with Coolify, storing sessions in Supabase with rate limiting and consent flow protection.
Developed BHS Custom Blocks — a WordPress Gutenberg plugin with 70+ custom blocks for Brown Harris Stevens (NYC real estate brokerage).
Built Seller Report and Client Listing modules; set up MCP server for fully prompt-driven deployments via Coolify.

2023 – 2025

Senior Full-Stack Engineer

The Genius Group (TGG) — Marketing & SaaS

Remote · UK-based company

Led delivery of 4 flagship products: Nowsign (eSignature), Premier11 (live sports), Booking Platform, and AI/OCR Teacher Assistant.
Built and deployed hundreds of high-converting funnel pages with Next.js SSR; integrated Twilio, Seven67, Mailgun, Tonic, Waypoint, and pixel APIs for Facebook, Google, TikTok, and Yola.
Integrated Experian & Equifax UK credit APIs, built a custom link shortener, and managed AWS servers including SSL and HTTP/2 setup.
Built an internal call center management platform and reduced API response times ~40% via Redis caching and query optimization.

2020 – 2023

Senior Software Engineer / Team Lead

ArhamSoft (Pvt) Ltd — Healthcare & Ed-tech

Led a team of 6 engineers delivering TheCareMD (US telemedicine), CureHotline, TeacherAI, and PeopleI (HRMS) — serving 200,000+ users.
Architected multi-tenant systems with JWT auth, RBAC, and optimized PostgreSQL/MySQL schemas under high-throughput API loads.

2019 – 2020

Software Engineer

LEAD Concept Solutions

Delivered enterprise dashboards, real-time APIs, and admin panels using Node.js and JavaScript.

2017 – 2019

Backend / PHP Developer

Ranglerz Digital Marketing

Built marketing automation tools, RESTful APIs, and PHP/Laravel backends for ad and analytics integrations on AWS.

Portfolio

Selected Projects

Production systems built for real users — AI agents, SaaS platforms, and high-traffic web products.

/ 01

REConnect RAG Chatbot

AI · Agentic Systems

Production AI chatbot for a US real estate data platform, built with RAG and agentic tools — MLS lookups, role-aware tone, live account data, and guided sign-up flows.

Read how I built this RAG chatbot →

OpenAIChroma CloudClaude HaikuNode.jsNext.js

/ 02

Coolify OAuth Shim

DevOps · MCP

Node/Express service bridging Claude MCP with self-hosted Coolify — enabling fully prompt-driven deployments with Supabase session persistence.

Read the MCP + Coolify write-up →

Node.jsExpressCoolifySupabaseMCP

/ 03

BHS Custom Blocks

WordPress · Real Estate

WordPress Gutenberg plugin with 70+ custom blocks for Brown Harris Stevens, a NYC real estate brokerage — agent profiles, listings, hero banners, and market reports.

Read how I built 70+ Gutenberg blocks →

WordPressGutenbergReactPHP