# Rehan Sathio

> Full-stack AI engineer in Karachi, Pakistan, open to hire. RAG systems, document AI, LLM apps, Flutter and production web platforms. 100+ freelance orders shipped.

I'm Rehan, a full-stack AI engineer in Karachi and an MS AI student. I ship RAG and document-AI pipelines, LLM apps and the product around them: 100+ freelance orders delivered, on-device AI in apps people use every day, open-source infrastructure, and a co-authored paper under review.

- Role: Full Stack AI Engineer
- Location: Karachi, Pakistan (PKT · UTC+5)
- Availability: Open to work. Full-time (remote, or on-site in Karachi) and freelance projects.
- Email: muhammadrehanrasool@gmail.com
- Client reviews: 100% five-star across 69 Fiverr reviews from 19 countries (https://rehansathio.vercel.app/#reviews)
- Hire me: Full-time AI, full-stack or backend roles. Remote, or on-site in Karachi. (https://rehansathio.vercel.app/contact?intent=hire)
- Have a project: Freelance builds, AI integrations, RAG and document pipelines. (https://rehansathio.vercel.app/contact?intent=project)
- Collaborate: Research, open source, or a weird idea worth a weekend. (https://rehansathio.vercel.app/contact?intent=collab)
- Contact form: https://rehansathio.vercel.app/contact
- Book a call: https://calendly.com/muhammadrehanrasool
- GitHub: https://github.com/MuhammadRehanRasool
- LinkedIn: https://www.linkedin.com/in/muhammadrehanrasool/
- Fiverr: https://www.fiverr.com/rehan_sathio
- Instagram: https://www.instagram.com/rehan.git/
- JointOps: https://github.com/JointOps

## Pages

- [Home](https://rehansathio.vercel.app/): overview, current work, capabilities and client reviews
- [Work](https://rehansathio.vercel.app/work): all projects and lab experiments
- [Research](https://rehansathio.vercel.app/research): papers, thesis and experiments
- [About](https://rehansathio.vercel.app/story): who I am, how I got here chapter by chapter, and how I work
- [Resume](https://rehansathio.vercel.app/resume): resume, also as a PDF at https://rehansathio.vercel.app/resume.pdf

## Projects

- [Ask Bhittai](https://rehansathio.vercel.app/work/ask-bhittai): A retrieval-augmented search engine over Shah Jo Risalo, the 18th-century Sindhi Sufi poetry of Shah Abdul Latif Bhittai.
- [Global Commodity Exchange](https://rehansathio.vercel.app/work/commodity-trading-platform): A real-time global commodity trading platform with a matching engine, carbon-credit listings, live WebSocket data and automated trading bots.
- [Bahria LMS Companion](https://rehansathio.vercel.app/work/bahria-lms): An unofficial LMS companion app for Bahria University students, on Flutter mobile and the web, with its own usage analytics.
- [Hitlimit](https://rehansathio.vercel.app/work/hitlimit): A framework-agnostic rate-limiting library for Node.js and Bun: 8 framework adapters, 8 storage backends, millions of checks per second.
- [AIPhotos](https://rehansathio.vercel.app/work/aiphotos): An iOS-style photo gallery for Android that understands your photos with on-device AI, without sending anything anywhere.
- [BrainDump](https://rehansathio.vercel.app/work/braindump): Dump a rough thought by voice or text in one tap, and Gemini Nano, already on your phone, turns it into a clean Markdown note that sounds like you.
- [Lead Intelligence Engine](https://rehansathio.vercel.app/work/lead-intelligence-engine): Type “Cafes in Dayton, Ohio” and get sales intelligence back: every business found, enriched, audited and prioritized, with a client-ready audit PDF for each.
- [Invoice Intelligence](https://rehansathio.vercel.app/work/invoice-extraction): A hybrid PDF pipeline that turns messy digital and scanned invoices into structured JSON and multi-sheet Excel reports.
- [Invoice Approval Workflow](https://rehansathio.vercel.app/work/invoice-approval-workflow): An n8n workflow that picks invoices up from Gmail and Google Drive, extracts them with a multimodal LLM, asks a human to approve, and writes clean rows to PostgreSQL.
- [SiftCrawl](https://rehansathio.vercel.app/work/siftcrawl): A generic web scraper SaaS: point it at a URL, it detects listings and pagination, you map fields, and it exports clean data. Hardened for multi-tenant use.
- [Mirror Me](https://rehansathio.vercel.app/work/mirror-me): A Flutter app that tries clothes on you with Gemini and gives styling advice, grown out of a 2022–23 virtual wardrobe project.
- [AI Expense Receipt Assistant](https://rehansathio.vercel.app/work/ai-expense-receipt-assistant): Employees send a receipt photo to a Telegram bot; a vision model reads it, a policy engine checks it, managers approve with one tap, and finance gets a monthly pack.
- [bunWay](https://rehansathio.vercel.app/work/bunway): An Express-compatible web framework built natively for Bun, with 26 built-in middleware and zero external dependencies.
- [KORE Tech: 14+ Flutter apps](https://rehansathio.vercel.app/work/flutter-apps): KORE Tech is my mobile app startup: 14+ utility, productivity and game apps on one reusable Flutter architecture, published on Google Play.
- [AI Golf Swing](https://rehansathio.vercel.app/work/ai-golf-swing): A golf-performance web app: capture a swing, get AI analysis with a 3D avatar and skeletal metrics, practise drills and get reviewed by a coach.
- [BulkSmith](https://rehansathio.vercel.app/work/bulksmith): Design once, personalize hundreds: make one design, drop in a list of names, and download a personalized version for every name.
- [Media-GO](https://rehansathio.vercel.app/work/media-go): A full-stack media and publishing platform: Django APIs behind a React storefront for news, categories, plans and landing pages.
- [ChatDoc](https://rehansathio.vercel.app/work/chatdoc): An NLP + face recognition doctor's assistant that interviews patients, then hands the doctor a medical summary and extracted keywords.
- [Walls of Art](https://rehansathio.vercel.app/work/walls-of-art): A free wallpaper gallery with 5K+ curated HD and 4K wallpapers across 55 categories, for desktop, mobile and tablet.
- [Fulfill Master](https://rehansathio.vercel.app/work/fulfill-master): An order management and fulfillment system: modular Django apps for orders, inventory sync and third-party logistics.

## Lab

- [ReceiptLens](https://rehansathio.vercel.app/work/receiptlens): A two-stage OCR + LLM pipeline that pulls structured JSON out of receipts and invoices with no training at all.
- [AI Social Circle](https://rehansathio.vercel.app/work/ai-social-circle): A private app that turns personal life logs into a living graph of the people you know and how much you trust them.
- [Six portfolios, one obsession](https://rehansathio.vercel.app/work/portfolio-rebuilds): I have rebuilt my portfolio six times. This site is version six, and one version taught itself which phrases to highlight.
- [YT Music Gen](https://rehansathio.vercel.app/work/yt-music-gen): A lofi music generation and post-processing dashboard: generate, blend, polish and export tracks from one place.
- [AidFusion](https://rehansathio.vercel.app/work/aidfusion): A donation platform that connects donors with people who need help, through verified accounts and reviews.
- [Archimaps](https://rehansathio.vercel.app/work/archimaps): Cleans up messy workspace folders: a token-dense map an LLM can audit, and a Python script that applies the layout it proposes.
- [Maps Lead Generator](https://rehansathio.vercel.app/work/maps-lead-generator): A browser extension that marks, row by row, which map leads have an email or phone number, so you qualify them at a glance.
- [Custom Face Recognizer](https://rehansathio.vercel.app/work/custom-face-recognizer): A notebook pipeline that detects, encodes and matches faces against a small set of people you choose.
- [Karachi Zameen Finder](https://rehansathio.vercel.app/work/zameen-finder): Scraped the whole of Zameen.pk for Karachi and predicts plot and flat prices. My first AI project.
- [Photo → Mood → Playlist](https://rehansathio.vercel.app/work/mood-to-music): Detects the emotion in a photo and adds matching tracks to Spotify, automatically.
- [Text-to-Video, without AI](https://rehansathio.vercel.app/work/text-to-video): Turns a script into a finished video with human speech and matching backgrounds, end to end, before generative video existed.
- [Atom Builder & friends](https://rehansathio.vercel.app/work/code-generators): An HTML-to-JSX converter, a React Builder, an Atom Builder, and Python scripts that generate whole admin modules.
- [Bots that do my chores](https://rehansathio.vercel.app/work/automation-bots): An auto-bidding bot for Freelancer.com, a LinkedIn jobs scraper, an email extractor and WeChat automation. If I do it twice, a bot does it the third time.
- [COVID-19 Data Analysis](https://rehansathio.vercel.app/work/covid-19-analysis): Cleaning, analysis and charts of the 12-13-2020.csv COVID-19 dataset. My first data project and my first repo on GitHub.
- [The PHP clone era](https://rehansathio.vercel.app/work/php-clones): Messenger, Instagram, a Wattpad-style bookstore, a CS:GO skins marketplace and more, rebuilt in PHP just to see how they worked.
- [Ludo, in C](https://rehansathio.vercel.app/work/ludo-in-c): A console Ludo game on a 15×15 array, first semester of BSCS. Seven sleepless nights, zero idea what I was doing. It worked.

## Research

- [Knowing When the Object Is Not There: Calibrated Few-Shot Presence Detection for Teachable Object Recognition on Mobile Devices](https://rehansathio.vercel.app/research/knowing-when-the-object-is-not-there) (Thesis, In progress, pilot complete, 2026): Teachable recognizers for blind and low-vision users always name an object, even when it isn’t there. In a pilot on ORBIT-India, thresholds meant to catch 90% of appearances caught 62% at best. The thesis calibrates that decision.
- [How well does multilingual retrieval find Sindhi Sufi verse?](https://rehansathio.vercel.app/research/sindhi-poetry-retrieval-benchmark) (Benchmark, Completed, 2026): A 51-query retrieval benchmark over Shah Jo Risalo. Recall@1 9.80%, Recall@5 23.53%, Recall@10 27.45%: honest baselines on a hard, low-resource corpus.
- [NeuroSymbolic AI for explainable financial fraud detection](https://rehansathio.vercel.app/research/neurosymbolic-fraud-detection) (Experiment, Completed, 2026): XGBoost + SMOTE for the statistics, an OWL 2 ontology for the reasoning. 92.86% precision and a plain-language reason for every risk decision.
- [A Relevance-Aware, Multimodal Framework for Efficient Trajectory Prediction in Dense Urban Environments](https://rehansathio.vercel.app/research/relevance-aware-trajectory-prediction) (Paper, Submitted, under review, 2025): Pruning 52.31% of the interaction graph before prediction, with minADE5 0.3863 m and minFDE5 0.4981 m on nuScenes. Co-authored at Bahria University.
- [Three literature syntheses: document AI, few-shot AR and agent reliability](https://rehansathio.vercel.app/research/literature-syntheses) (Literature synthesis, Completed, 2026-10): 97 works mapped across three subfields, each charted by method, result, limitation and open gap.
- [Training a neural network without gradients: 7 metaheuristics vs. Adam](https://rehansathio.vercel.app/research/metaheuristic-weight-optimization) (Experiment, Completed, 2026): Seven swarm and evolutionary algorithms train a 44-weight network head to head with Adam. Particle Swarm Optimization reaches 93.33% accuracy, 3.33 points above Adam.
- [From stroke prediction to three-tier risk stratification](https://rehansathio.vercel.app/research/stroke-risk-stratification) (Experiment, Completed, 2026): The Kaggle stroke dataset reframed as Low, Moderate and High risk tiers. A 150-tree Random Forest reaches 92.37% test accuracy, ahead of a neural network.
- [When deep learning loses: mental-health text classification on 992 samples](https://rehansathio.vercel.app/research/mental-health-text-classification) (Experiment, Completed, 2026): Anxiety, Depression, Normal or Suicidal. A TF-IDF Random Forest reaches 53% accuracy; a hybrid CNN-BiLSTM collapses to 34%. A group project about why.
- [Notes from a hybrid OCR + LLM invoice pipeline](https://rehansathio.vercel.app/research/hybrid-ocr-llm-extraction) (Technical note, Pilot complete, 2026): Digital text first, OCR as a fallback, an LLM with a strict JSON schema on top. 8 of 8 production invoices parsed in the pilot.

## Ventures

- [JointOps](https://www.jointops.dev): Co-founder. A small studio and open-source org I run with friends: client products, plus developer infrastructure we publish in the open.
- [KORE Tech](https://koretech.vercel.app): Co-founder. An independent Android app studio I run with a friend: small, privacy-first tools on Google Play, monetized with AdMob, plus client builds.
- [TapBridge](https://tapbridge.vercel.app): Founder · pre-launch. NFC review cards and QR stands for Karachi businesses: a customer taps their phone and lands on the Google review page, no app needed. Optional review-insight reports, and no paid or filtered reviews.

## Optional

- [Full text](https://rehansathio.vercel.app/llms-full.txt): every case study, research write-up and story chapter in one file