Jahid Hasan

Hi, I'm Jahid Hasan

I'm a Bangladeshihacker, LLM Engineer & O'Reilly Author. I build innovative AI products and help companies leverage the power of large language models.

  • Building solo products and focusing on entrepreneurship.
  • Full-stack software engineer specializing in LLMs and growth marketing.
  • Author of "Prompt Engineering for LLMs" (O'Reilly).
  • Working on innovative AI-powered SaaS products.

Jahid Hasan

I'm passionate about creating innovative solutions that will shape the future. I specialize in utilizing cutting-edge technologies and data to develop products and services that will power the digital world of tomorrow.

With my expertise in programming, machine learning, artificial intelligence, and data engineering, I strive to develop products and services that will revolutionize the way we interact with technology.

I'm constantly pushing the boundaries of what is possible and dreaming up new ways to make our lives better using the power of technology.

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Software I've built

As a software engineer, I've designed and built a suite of powerful marketing tools to help businesses maximize their marketing efforts. With the right marketing tools, businesses can unlock their true potential and take their team to the next level.

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BrandVisibility AI - AI Rank Tracker

Track brand rankings across AI search engines with comprehensive visibility analytics and time series tracking.

brandvisibility.ai
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CursorDevKit - SaaS Boilerplate

A magical AI-powered, local-first boilerplate for modern web development with Next.js and Supabase.

cursordevkit.com
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Vexpower - EdTech Course Platform

Learn to be more data-driven with realistic training scenarios.

vexpower.com
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SingularityDigital - Industry SEO Data

A marketing platform for SEO companies to track their industry with data.

data.singularity.digital
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Python for SEO - Training Course

A Python course for SEOs to learn how to scrape and analyze data.

python-for-seo
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FAQ Generation - NLP & Data Engineering

SERP scraping and NLP to generate FAQ content for SEO companies.

faq-generation.com

Services

I help businesses build reliable, scalable technical solutions that drive real results through LLM engineering, full-stack development, data engineering, and technical architecture. My expertise spans from harnessing cutting-edge AI and crafting robust applications to transforming raw data into actionable intelligence through powerful pipelines and visualizations.

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SaaS Applications

Full-stack SaaS development from idea to production. Including auth, payments, analytics, and automated testing.

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LLM Engineering

Building custom AI solutions and integrating LLMs into existing applications. Specializing in RAG, fine-tuning, and prompt engineering.

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React Development

Modern web applications built with Next.js, TypeScript, and Tailwind. Focus on performance, accessibility, and user experience.

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Python Development

Building scalable backend services, data pipelines, and automation tools. Expert in Django, FastAPI, and data science libraries.

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Data Engineering

End-to-end data pipeline development, ETL processes, and data warehouse solutions.

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Web Scraping

Building reliable and scalable web scrapers with respect for robots.txt. Expert in BeautifulSoup, Scrapy, and Selenium.

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Featured Work

Explore some of my favorite projects through interactive video previews. Click on any thumbnail to watch the full demo in a modal window.

Latest Posts

I occasionally write about technology, entrepreneurship, and the future of AI. Here are a few of my latest thoughts.

Building an AI-Powered App with Next.js

A step-by-step guide to integrating the OpenAI API into a modern web application for powerful new features.

The IndieHacker's Guide to Growth

Exploring unconventional marketing strategies that helped me scale my SaaS products without a big budget.

Fine-Tuning vs. RAG: Which is Right for You?

A deep dive into the two most popular methods for customizing Large Language Models, with practical use cases.

Frequently Asked Questions

Find answers to common questions about my expertise, workflow, and services.

I primarily work with JavaScript/TypeScript (React, Next.js), Python (Django, FastAPI), and AI/ML frameworks like TensorFlow and PyTorch. I also have experience with AWS and GCP.

I start by understanding the core problem and user needs, then design scalable architecture, select the right tech stack, and iterate quickly with feedback.

Absolutely! I have experience integrating LLMs and other AI models into existing applications to enhance functionality and automate tasks.

I take on a limited number of projects to ensure quality. Please reach out via the contact section to discuss your project and check my current availability.

Trusted by global brands & innovative startups AI-first

Gemini
Copilot
ChatGPT
Deepseek
Figma
Canva
GitHub
Aistudio
Google
Google Cloud
IBM
Atlassian
Slack
LinkedIn
whatsapp
windows
Facebook
Stack Overflow
Instagram
Telegram
Gmail
Microsoft
Playstore
Chrome
Android
Maps

Let's build something great together.

I'm currently available for freelance projects and consulting engagements. If you have a project in mind or just want to connect, feel free to reach out.

Say Hello