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Β© 2026 Sahariar Hossain. Crafted with Next.js & Antigravity.

Hi, I'm Sahariar Hossain

AI Product Engineer

Building AI-native Internal Tools, Automation Platforms &
Production-Ready Full-Stack Applications.

I design, build and ship AI products that solve real business problems using Next.js, TypeScript, PostgreSQL, Supabase and modern LLM APIs.

10+AI Products
5+API Integrations
100%Responsive
4+Production Systems
2023+Building AI Products
View Projects
Download Resume
Contact Me

My
Engineering
Philosophy

I don't just write code. I build resilient systems and intelligent automation that solve deep operational bottlenecks and deliver immediate business value.

🧠

Who I Am

I am an Independent AI Product Engineer. I blend the lines between a traditional software developer and a strategic product manager, focusing on solving complex operational bottlenecks using modern AI technologies.

πŸš€

Professional Story

Starting as a full-stack developer, I quickly realized that AI was the new operating system for fast-moving businesses. I transitioned entirely to building AI-native products, shipping over 10 production-ready applications focusing on Go-To-Market automation and internal tools.

βš™οΈ

How I Think

I think in systems and scale. When presented with a business problem, I don't jump straight to code. I talk to stakeholders, analyze friction points, and design a solution that leverages AI to eliminate manual effort.

πŸ—οΈ

How I Build

I build for production. Using Next.js, PostgreSQL, and Supabase as my foundation, I integrate Vercel AI SDK and LLMs to create resilient applications. I leverage advanced AI coding assistants to prototype and iterate at unprecedented speeds.

🎯

Engineering Philosophy

Treat internal teams as customers. Internal tools shouldn't be clunky admin panelsβ€”they deserve the same premium UX, state management, and reliability as top-tier consumer-facing SaaS products.

πŸ’‘

Product Mindset

Build, Ship, Gather Feedback, Iterate. A product is never truly finished until it actively solves the user's problem seamlessly. I rely heavily on real-world usage data to drive my development roadmap.

🀝

Working Style

I thrive in high-ownership, lean, and fast-moving remote environments. I am highly proactive, capable of communicating complex technical architectures to non-technical stakeholders, and take end-to-end responsibility for the products I ship.

Engineering Principles

The core methodology I follow to deliver high-impact AI products reliably and rapidly.

01
πŸ‘₯

User First

02
⚑

Build Fast

03
πŸ“Š

Measure

04
πŸ”„

Iterate

05
πŸš€

Ship

06
♾️

Repeat

Technical Arsenal.

The professional toolset I use to engineer highly scalable, production-ready AI applications.

✦AI & LLMs

Gemini API iconGemini API/LLM Integration/AI Agents/Prompt Engineering/Structured Outputs/Streaming UI

✦Frontend

Next.js iconNext.js/React iconReact/TypeScript iconTypeScript/Tailwind CSS iconTailwind CSS/Zustand/Framer Motion iconFramer Motion/GSAP iconGSAP/Shadcn UI/Vite iconVite

✦Backend

REST APIs/Node.js iconNode.js/Stripe API iconStripe API/OAuth/Next.js API

✦Database

PostgreSQL iconPostgreSQL/Supabase iconSupabase/Prisma ORM iconPrisma ORM

✦Cloud & DevOps

Serverless/Edge Computing/GitHub Actions iconGitHub Actions/CI/CD Pipelines

✦Deployment

Vercel iconVercel/Custom Domains/Webhooks

✦Architecture

Microservices/System Design/Event-Driven/State Machines

✦Tools

Antigravity iconAntigravity/AI Studio/Git iconGit/Postman iconPostman/Figma iconFigma

Featured Projects ⭐⭐⭐⭐⭐

Enterprise-level case studies detailing the architecture, challenges, and impact of my recent AI-driven product deliveries.

01

DocuAgent Pro

Business Operations & Document Automation

A highly optimized client-side AI operational tool that acts as an internal agent, generating structured, highly professional PDF documents in seconds.

TypeInternal Operational Tool
TechReact β€’ Zustand
Read Case Study πŸš€
GitHub
02

GTM Outreach Automator

AI Sales Assistant

A production-grade AI product to instantly generate highly tailored text outputs for sales and marketing outreach.

TypeGTM Application
TechNext.js β€’ React
Read Case Study πŸš€
GitHub
03

NovaFlow

Internal Operations Dashboard

A responsive internal operational dashboard tailored for visualizing key metrics and managing fast-moving data streams.

TypeData Visualization
TechReact β€’ Next.js
Read Case Study πŸš€
GitHub
04

Project NEXA

Full-Stack Next.js E-Commerce Platform

Architected a scalable full-stack e-commerce platform with dynamic routing, optimized performance, secure authentication, and Stripe payment integration.

TypeE-Commerce
TechNext.js App Router β€’ Supabase
Read Case Study πŸš€
GitHub

Other Notable Projects

A selection of frontend interfaces, dashboards, and digital assets.

Design Your World

A premium, highly animated digital assets marketplace featuring complex GSAP scroll animations.

React β€’ Vite β€’ GSAP β€’ Tailwind
Demo β†—GitHub β†—

Kanban Board

A robust drag-and-drop task management application built with Next.js and Tailwind CSS.

Next.js β€’ React DND β€’ Zustand
Demo β†—GitHub β†—

AI Dashboard

A modern AI SaaS Dashboard featuring dark mode support and interactive data visualizations.

Next.js β€’ Recharts β€’ Lucide
Demo β†—GitHub β†—

GrowthEdge Consulting

A modern, responsive landing page for a strategic consulting firm with smooth reveal animations.

HTML5 β€’ Tailwind CSS β€’ UI/UX
Demo β†—GitHub β†—

Alex Carter Portfolio

A sleek, personal portfolio template designed for creative professionals with modern CSS layouts.

HTML/CSS β€’ Tailwind CSS
Demo β†—GitHub β†—

UrbanNest Real Estate

A highly visual property listing landing page focusing on structured component design.

Tailwind CSS β€’ Web Design
Demo β†—GitHub β†—

Open Source & Activity

Real-time insights into my code contributions, top languages, and daily development activity on GitHub.

GitHub Profile Details
Top Languages Used on GitHub

Contribution Graph

GitHub Activity Graph

Technical Writing

Sharing insights on AI engineering, frontend architecture, and building production-ready products.

Oct 12, 20238 min read

How I Built My AI Resume Builder

A deep dive into the architecture of DocuAgent Pro. Learn how I combined Next.js, Zustand, and the Gemini 2.5 Flash API to create a client-side PDF generation engine with zero backend latency.

ArchitectureAI AgentsReact
Read Article β†’
Sep 28, 20236 min read

Building AI Internal Tools

Why treating your internal operations team as your most important customer changes everything. A guide to discovering and automating high-friction workflows.

ProductOperationsSaaS
Read Article β†’
Sep 15, 202310 min read

LLM Prompt Engineering

Moving beyond basic prompts to rigorous system constraints. How to force LLMs to output reliable, structured JSON for production-grade sales automation.

Prompt EngineeringOpenAIGemini
Read Article β†’
Aug 30, 20237 min read

Next.js Best Practices

Optimizing React Server Components and dynamic routing for high-traffic e-commerce platforms. Lessons learned from scaling Project NEXA.

Next.jsPerformanceRSC
Read Article β†’

Let's Work Together

Open for full-time remote opportunities or high-impact contract work. Fill out the form below and I'll respond within 24 hours.