muhaiman.dev
Applied AI · Full-Stack · Data Systems

AI engineer who ships full-stack systems built for real-world traffic.

I build applied AI systems, from retrieval pipelines to agent workflows, and take them from a blank repo to stable deployment, with the web apps and data pipelines they depend on.

Proof of Work

Selected Projects

Production client systems and open-source tools I built end to end, from applied AI and retrieval pipelines to full-stack web apps and data scrapers.

ClientFull-Stack & Applied AI Engineer

SolutionPath

AI Book Generation Platform & Google Workspace Integration

Turns structured chapter outlines from Google Sheets into complete books in up to 8 languages. I built it from scratch: parallel translation jobs, live status streaming, Google Docs export, and the Google Cloud OAuth verification it needed before launch.

React (Vite)FastAPICelery / RedisPostgreSQLOpenAI APIGoogle Cloud APIs
Private Client System
ClientFull-Stack Engineer

CountBubble

Nonprofit Case Management & Custom Reporting Workspace

A live case-management SaaS for human-services nonprofits. I added participant assignment, then rebuilt reporting into a persistent workspace with saved reports, drafts, grouping, and batch runs inside a React 16 and raw-SQL codebase without regressions.

React 16Node.jsAWS SAMPostgreSQL / Raw SQLDocker
Private Client System
Open SourceCreator & Engineer

VoiceLine

AI Voice-Note Workspace & Hybrid RAG Assistant

A voice-first notes workspace. It transcribes audio, writes structured summaries and tags, and answers questions across your whole library with cited sources using pgvector dense similarity and sparse keyword search fused with RRF.

Next.jsVercel AI SDKpgvectorDrizzle ORMHybrid RAG / RRF
ClientBackend & Data Engineer

WalletInvestor

90,000-Symbol Financial Scraping Service & Graph Capture

A daily scraping service covering roughly 90,000 financial symbols across crypto, stocks, forex, and commodities. Uses plain HTTP for fast tabular pages, Playwright for JS-rendered forecast charts, API-controlled runs, proxy bandwidth monitoring, and email alerts.

PythonPlaywrightBeautifulSoupPostgreSQLREST APIs
Private Client System
Open SourceCreator & Engineer

Redline

Markdown Editor with Inline AI Diff Review

A Markdown workspace where AI edits show up as inline redline diffs you accept or reject block by block. Includes a command palette, bidirectional Markdown sync, voice transcription, and an offline demo mode.

Next.jsTipTap / ProseMirrorDrizzle ORMSQLite / PostgreSQLVercel AI SDK
ClientBackend & Data Engineer

Expedia Review Scraper

Dynamic Hotel Review Extraction & Client Control Dashboard

Collects reviews and rating breakdowns for a large hotel queue by intercepting Expedia's internal API responses in a headed browser while blocking static assets to save proxy bandwidth. Includes a web dashboard to pause, requeue, split exports, and back up.

PythonPlaywrightAPI InterceptionPostgreSQLWindows VPS
Private Client System
Open SourceCreator & Engineer

ContextFloat

Embeddable AI Concierge & Hybrid RAG Engine

A context-aware AI assistant you embed on any site with one script tag. Shadow DOM keeps its styles isolated, retrieval fuses dense embeddings with BM25 lexical search via RRF, and dropped SSE connections abort generation to save tokens.

FastAPIPythonChromaDBBM25 / RRFShadow DOMServer-Sent Events
ClientFull-Stack Engineer

NSMAH

Multi-Vendor E-Commerce Logistics & Checkout Engine

Added delivery class management with multi-vendor shipping rules and a full-stack coupon engine to a live marketplace, fixed checkout state race conditions, and set up containerized staging with Docker and Coolify.

Next.jsTypeScriptTanStack QueryMongoDBDocker / Coolify
Private Client System
What I Do

Services

Four areas where I take projects from an empty repo to stable production, led by applied AI. Each one is backed by shipped work.

01

Applied AI Systems

Retrieval-augmented generation, async generation pipelines, and agent workflows built for real traffic, not demo prompts.

02

Full-Stack Web Applications

SaaS platforms, admin dashboards, and e-commerce systems built with typed APIs, clean data layers, and deployment handled end to end.

03

Data Scraping & Pipelines

Large-scale extraction systems with proxy management, scheduling, monitoring, and control panels so the client can run them without a terminal.

04

Automation & Integrations

Workflow automation, background workers, and third-party API integrations, including Google Workspace and event-driven webhooks.

Toolkit

Core Stack

The languages, databases, and infrastructure I reach for by default when shipping production systems.

Full-Stack

TypeScript

End-to-end typed apps

Full-Stack

Next.js

App Router & SSR

Full-Stack

React

UI & client state

Full-Stack

Python

AI, scrapers & APIs

Full-Stack

FastAPI

Async Python services

Full-Stack

Node.js

Express & serverless

Applied AI

OpenAI & LLMs

Tool calling & agents

Applied AI

Vercel AI SDK

Streaming & structured UI

Applied AI

Hybrid RAG

pgvector + BM25 + RRF

Data & Infra

PostgreSQL

Primary relational store

Data & Infra

Drizzle & SQLAlchemy

Typed schemas & migrations

Data & Infra

Docker & Coolify

Containerized deploys

Data & Infra

Linux VPS & Nginx

Self-hosted production

Automation

Playwright

Browser & API scraping

Automation

Celery & Redis

Distributed job queues

Automation

n8n & Webhooks

Workflow orchestration

About

Concepts first, then code.

I build full-stack applications, automated data pipelines, and applied AI systems. Before I write any code, I work out the core concepts and the mental model first. Once the structure is clear, picking up a new framework or architecture is just connecting the dots.

I use modern abstractions and AI tooling for speed, and I still make sure I understand the mechanics running underneath them. That is how I debug difficult problems, and it is why the systems I ship stay maintainable.

Get in Touch

Have a project in mind? Let’s talk.

I’m currently available for freelance engineering work, technical consulting, and full-stack or applied AI projects. Send a message and I’ll get back to you promptly.