Hasnain Zainulabdin · AI Developer & Software Engineer in Hyderabad, SindhI build AI systems that actually ship.

I'm Hasnain Zainulabdin, an AI developer and software engineer in Hyderabad, Sindh. I build RAG pipelines, LLM apps, and FastAPI backends that make it out of the notebook and into production. Don't take my word for it, every project below is live. Click one and poke around.

Or email directly: hasnainzainulabdin@gmail.com

4Live AI products
10+Projects delivered
6Cisco certifications
<24hResponse time
Hasnain Zainulabdin, AI developer and software engineer from Hyderabad, Sindh
10+ PROJECTS SHIPPED
Hasnain ZainulabdinAI Developer & Software Engineer · Hyderabad, Sindh · Remote worldwide

Who I am

I turn scattered documents into assistants that answer with sources.

I put LLMs on WhatsApp, on the web, and behind APIs that don't fall over.

And I ship. Demos you can click, not decks you have to believe.

01 · Live work

Don't read about it. Try it.

Everything here is deployed and public. Open one, ask it something hard, judge me on the answer.

Legal AI

QanoonDaan

RAG-based Pakistani legal advisory chatbot that makes legal guidance accessible in seconds. Ask a question and get an answer with cited official sources, so you can check where it came from. It answers about 90% of Pakistani legal queries.

RAGFAISSFastAPILlama 3NLPPrompt EngineeringSentence-Transformers

Business Software

Chicken Khata

Offline khata and billing software built for a local chicken shop and used daily by a real shop owner. It tracks supplier and customer dues, handles partial payments, and prints thermal receipts. It cut the time spent on daily bills, dues, and ledger entries by 95%. In a single month it caught Rs. 70,000+ in billing and ledger mistakes.

ElectronTypeScriptSQLiteDesktop AppThermal Printing

Education Tech

FeeTrack

School fee and attendance management system built for day-to-day school administration. It supports custom fee overrides, holiday handling and admin notifications. It speeds up fee collection by 70% and saves about an hour a day on fees and attendance. It was tested with 500+ students and 12-month fee cycles.

PythonFastAPIPostgreSQLSQLAlchemyAlembicDockerREST API

Agency Website

R&R Digital Solutions

Website for my software and AI practice. It presents the services, FAQs, and case studies, including ShariahEase, QanoonDaan, and ResuFit, so prospective clients can see what has been built and get in touch.

Next.jsReactTypeScriptTailwind CSSThree.js & React ThreeFramer MotionRAGResend

Recruiting AI

ResuFit

AI resume-screening API that automates candidate evaluation end to end. It cuts manual resume-screening time by 70%, so recruiters spend their time on the strongest candidates.

PythonFastAPIspaCyscikit-learnNLPHF Spaces

02 · What I do

Three things, done properly.

No forty-item agency menu. These are the AI and software engineering services I offer from Hyderabad, Sindh to clients worldwide, because I've built them before.

01

RAG chatbots & knowledge assistants

Turn your documents into an assistant that answers with sources. Semantic retrieval, grounded responses, and an honest "I don't know" instead of confident nonsense.

FAISS · LangChain · Llama 3 · Groq

02

LLM apps & AI chatbots

Conversational products on WhatsApp, web, and voice. Everything from prompt design and guardrails to speech-to-text and text-to-speech pipelines.

WhatsApp API · Whisper · edge-tts · LangGraph

03

FastAPI backend APIs & deployment

FastAPI services with auth, validation, and Docker deploys. The unglamorous plumbing of shipping AI, done right so your product stays up.

FastAPI · Pydantic · JWT · Docker

03 · About

Backend-first, proof-driven.

I'm a Software Engineering graduate from the University of Sindh, specialized in AI and data science. I got into this field to solve real problems with language models, retrieval systems, and automation. Not to make demos that die in a notebook.

That's why everything I build is production-shaped from day one: proper APIs, proper error handling, deployed where you can actually use it.

I'm based in Hyderabad, Sindh, Pakistan, and work as a software engineer and AI developer with local businesses and remote clients worldwide. If you're looking for an AI developer or software engineer in Hyderabad, get in touch below.

  • Advanced RAG and vector search optimization with FAISS and semantic retrieval.
  • High-performance APIs with FastAPI, Pydantic, and Python.
  • Hands-on with Llama 3, Groq inference, Hugging Face, spaCy, and scikit-learn.
  • Multi-model conversational AI for practical, real-world workflows.

How I work

1

Scope

A short call, a clear written plan, and an honest estimate. No vague "AI magic" promises.

2

Build

Weekly demos you can click, not status reports. You see the thing working, not slides about it.

3

Ship

Deployed, documented, and handed over. You own the code and know how to run it.

04 · Track record

Experience

Apr 2026 - Present

Co-Founder & Lead AI / Backend Engineer

R&R Digital Solutions

Run a software and AI practice in Hyderabad, building custom products for local businesses and startups. Delivered 5 production projects: RAG chatbots, a school fee and attendance system, and offline billing software for a shop. I handle the full cycle: scoping with the client, building and deploying, and ongoing support.

2025 – Present

AI & Backend Engineer

Independent AI Consulting / Freelance

Build AI systems for real clients, wiring LLMs into the workflows they already use. Work includes RAG chatbots with cited answers, voice and WhatsApp assistants, and an AI resume-screening API. Behind each one is a FastAPI backend with PostgreSQL, tuned for speed and reliability and deployed with Docker. Results include answers in under 3 seconds and a 70% cut in manual screening time.

2023 – Present

Python Developer

Local Freelance · Hyderabad, Sindh

Built Python software for local businesses and schools, turning paper and spreadsheet routines into reliable systems. Projects include a school fee and attendance platform tested with 500+ students, and offline billing and ledger software for a shop that caught Rs. 70,000+ in errors in a single month. Handled everything from requirements and database design to deployment and support after launch.

Education

2022 - 2025

BS in Software Engineering

University of Sindh

Four-year degree covering software architecture, algorithms, data structures, databases, and full-stack development. It gave me the engineering base behind my backend and AI work: designing systems, writing maintainable code, and working through requirements.

May 2025 - May 2026

AI & Data Science Specialization

Saylani Mass IT Training (SMIT)

One-year, hands-on training program in machine learning, deep learning, NLP, RAG, Chatbots, Agentic AI, and data science with Python. It covered the full workflow from data preparation and model training to evaluation, which I now use when building AI products.

05 · Certifications

Verified, not just claimed.

Every badge links straight to Credly. Click Verify, check for yourself.

01

Python Essentials 1

Cisco Networking Academy

02

Python Essentials 2

Cisco Networking Academy

03

Data Science Essentials with Python

Cisco Networking Academy

04

Introduction to Modern AI

Cisco Networking Academy

05

Prompt Like an Engineer

Cisco Networking Academy

06

Agents Course

Hugging Face

06 · Contact

Have an AI product in mind? Let's talk.

Tell me what you're building. Within 24 hours you'll get an honest answer: can I help, how long it takes, and what it costs.

hasnainzainulabdin@gmail.com

USUALLY REPLIES WITHIN 24 HOURS · HYDERABAD, SINDH · REMOTE WORLDWIDE