Full Stack Web Developer | Nodario Tech

About Me

I’m Sehaj Chauhan — a Full-Stack Web Developer, UI/UX Designer, and Generative AI Enthusiast passionate about creating modern, intuitive, and visually engaging digital experiences. At just 18, I’ve completed specialized training in MERN Stack Development, Node.js + MySQL, backend development using ASP.NET and Microservices, as well as a comprehensive IBM Generative AI Engineering Professional Certificate. I’m also certified in UI/UX Design with Figma, Git & GitHub, and proficient in programming languages including Ruby, C, C++, and C#.

My focus is on combining clean, maintainable code with compelling design to build full-stack applications that are not only functional but also delightful and user-friendly, with AI-powered enhancements wherever possible.

Let's Collaborate

Skills & Proficiency

Frontend

HTML5

100%

CSS

95%

JavaScript

85%

React.js

90%

Bootstrap

95%

Figma (UI/UX)

80%

Backend & Tools

Node.js

95%

Express.js

90%

MongoDB

80%

MySQL

100%

ASP.NET / C#

75%

C / C++

80%

Ruby

60%

Git & GitHub

85%

REST APIs & Flask

80%

AI / Machine Learning / Generative AI

Neural Networks & Deep Learning

85%

Transformers & LLMs (GPT, BERT)

80%

Prompt Engineering & In-Context Learning

90%

Fine-Tuning (LoRA, QLoRA, RLHF)

75%

RAG (Retrieval-Augmented Generation)

85%

LangChain & AI Agents

80%

Generative Models (GANs, VAEs, Diffusion)

70%

Data Science & NLP

Data Cleaning & Feature Engineering

90%

Exploratory Data Analysis (EDA)

85%

Embeddings & Tokenization

80%

Text Classification & Sequence Models

75%

Speech-to-Text & Text-to-Speech

95%

Hugging Face, PyTorch, scikit-learn

80%

Vector Databases & Embedding Stores

75%

Certificates

Sep 2025

IBM Generative AI Engineering Professional Certificate

IBM – Coursera

Learned generative AI, LLMs, transformers, prompt engineering, RAG, LangChain, and AI agent development.

May 2024

MERN Stack Development

VMM Education

Built full-stack apps using MongoDB, Express.js, React.js, and Node.js.
Apr 2024

ASP.NET for Experienced Developers

Board Infinity

Learned advanced .NET backend concepts, REST APIs, and deployment.
Mar 2024

Specialization in C & C++

UC Santa Cruz – Coursera

Structured programming, memory management, and OOP fundamentals.
Feb 2024

Git & GitHub

Udemy / Practice

Version control, branching, pull requests, and open-source collaboration.
Feb 2024

UI/UX Design with Figma

Udemy

Designed responsive wireframes, prototypes, and user flows using Figma.
Dec 2023

Node.js & MySQL Development

VMM Education

Created server-side applications and APIs integrated with MySQL databases.

Services Offered

Full-Stack Web Development

End-to-end development with modern stacks, including frontend and backend integration.

UI/UX Design

Designing modern, responsive, and user-centric interfaces with Figma & Bootstrap.

MERN Stack Applications

Custom full-stack apps using React, Node.js, Express.js, and MongoDB.

ASP.NET API Development

Scalable backend APIs built with C#, .NET Core, and SQL databases.

MySQL / MongoDB Integration

Database design, optimization, and integration for both SQL and NoSQL solutions.

Debugging & Optimization

Identify and resolve bugs, optimize performance, and improve code efficiency.

SEO-Friendly Development

Develop semantic, SEO-optimized websites with improved performance and visibility.

Mobile Responsive Design

Delivering consistent and engaging user experience across all devices.

Landing Page Development

High-converting, responsive landing pages optimized for products and campaigns.

AI & Generative AI Solutions

Custom AI solutions using LLMs, GPT, and transformer models for automation, content generation, and intelligent apps.

NLP & Chatbot Development

Build intelligent chatbots, language models, and natural language interfaces with Hugging Face, LangChain, and APIs.

AI Agents & RAG Solutions

Implement Retrieval-Augmented Generation (RAG) systems, autonomous agents, and multi-step AI workflows.

Data Science & Model Training

Data cleaning, feature engineering, and training deep learning models with PyTorch, scikit-learn, and Hugging Face.

Get In Touch

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HI , I AM SEHAJ CHAUHAN.