Shiv Sagar Kumar Sinha

A Full Stack Web Developer with expertise in JavaScript and CMS.

I build clean, scalable, and SEO-friendly web applications that solve real-world problems. My focus is on creating high-performance websites that are easily discoverable on the internet.

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About Me

Crafting a professional web developer resume through skills and experience.

Shiv Sagar Kumar Sinha - Full Stack Web Developer

Passionate Web Application Developer

I am a dedicated web developer driven by a passion for building clean, scalable, and accessible web applications that solve real-world problems. My focus is on writing clean code and creating user-focused interfaces, ensuring every project is both functional and easy to use.

My hands-on experience includes working with modern content management systems like WordPress and Shopify, where I designed visually appealing, SEO-friendly websites. I am proficient across the full stack, with strong skills in Vanilla JavaScript, HTML, and CSS for the front end, and a growing knowledge of back-end technologies like Node.js, Express, and MongoDB.

Core Technical Skills

JavaScript
HTML & CSS
React
Node.js
Express
MongoDB
WordPress
Shopify
Git & GitHub

SEO & Analytics Expertise

Driving organic growth through data-driven strategies and industry-leading tools.

Semrush

Mastering keyword research, competitor strategy analysis, and technical site audits to skyrocket organic rankings.

Google Analytics 4

Leveraging GA4 to track complex user journeys, identify conversion bottlenecks, and drive data-backed decisions.

Search Console

Optimizing site indexing, fixing crawl errors, and monitoring search performance directly through Google's lens.

Microsoft Clarity - User Experience & Heatmaps Tool

MS Clarity

Visualizing user pain points through session recordings and heatmaps to improve website usability and UX.

Tag Manager

Seamlessly managing marketing tags and custom event tracking without adding bloat to the website source code.

Client Testimonials

What my clients say about working with me on their digital journeys.

Sagar transformed my personal brand with a stunning portfolio. His attention to detail and technical skills are exceptional.

Rahul Sinha

Personal Portfolio Client

Working with Sagar was a breeze. He delivered a high-performance agency website that significantly increased our lead generation.

Satyam Mishra

Agency Owner

A true professional. He understood our complex manufacturing requirements and built a B2B platform that exceeded our expectations.

Mohit

Manufacturing Business Lead

His SEO expertise combined with web development skills is a rare find. Our organic traffic saw a 40% jump in just three months.

Amit Kumar

E-commerce Client

Budget-Friendly Pricing

Choose the right plan for your digital presence.

One-Page Portfolio

₹5,000

Custom single-page design
Responsive layout
Basic SEO setup
Fast loading speed

Get Started

CMS / React Website

₹20k - 25k

WordPress, Shopify, or React
Custom theme development
Advanced SEO optimization
E-commerce / Blog setup

Get Started

Full MERN Product

₹25k - 50k

Comprehensive web application
Complete backend flow
Database integration
Basic SEO setup

Get Started

My Portfolio

A selection of my work, focusing on custom-coded frontend applications.

Frontend Projects

E-Commerce Platform (Flipkart Clone)

Built a frontend tool that fetches and displays dummy product data from a Fake API, implementing pagination, filtering, and sorting features.

Vanilla JSHTML5CSS3REST API

Live Demo Source Code

Music Player
(spotify-Clone)

A functional clone of the Spotify web player UI, created using Vanilla JavaScript to structure a complex single-page application and manage media elements.

Vanilla JSHTML5CSS3

Live Demo Source Code

Sundown Studio Clone

A pixel-perfect clone of an animated website, highlighting advanced CSS and JavaScript animation skills like scroll-triggered effects and complex layout transitions.

Vanilla JSGSAPHTML5CSS

Live Demo Source Code

Personal AI Chatbot

An interactive AI Chatbot powered by the Google Gemini API and built with Vanilla JavaScript to create an engaging, responsive conversational UI.

Vanilla JSGemini APIHTML5CSS

Live Demo Source Code

Movie Search App

Created a Movie Search Web App using JavaScript and Fetch API to allow users to search for movies and view details from an external database.

Vanilla JSOMDb APIFetch APIHTML5

Live Demo Source Code

Personal Portfolio Website

A clean and professional personal portfolio website built for a client. This project demonstrates strong foundational skills in creating responsive, visually appealing websites.

Vanilla JSHTML5CSS3Responsive

Live Demo Source Code

Client & Professional Work

I've had the opportunity to work with a diverse range of clients, delivering high-quality websites on leading CMS platforms.

MERN Stack Projects (Freelance)

Progressive Tooling Systems client project

ProgressiveToolingSystems.com

MERN Stack Development

Freelance MERN project tailored for a manufacturing/tooling business, focusing on scalability and modern web standards.

MERN StackReact jsNode js

Visit Live Site

WhisperingChevrons.in

MERN Stack Development

Developed a full-stack web application with secure backend flows and responsive UI.

Full StackMongoDBExpress js

Visit Live Site

GritForce8.com

MERN Stack Development

Freelance web platform built on the MERN stack with dynamic functionalities and robust performance.

React jsAPIDatabase

Visit Live Site

WordPress Websites

Manufyn.com

WordPress Development

Developed a corporate B2B platform for a manufacturing client, requiring a custom, professional design that was both SEO-friendly and highly performant.

B2B PlatformCustom DesignPerformance

Visit Live Site

PlanMyEstate.in

WordPress Development

Built a professional website for a financial services client with a focus on creating a secure, trustworthy, and lead-generating platform.

Lead GenerationUI/UXSecurity

Visit Live Site

AthaYoga.com

WordPress Development

Created a serene and user-friendly website for a yoga studio with a calming aesthetic and features for class schedules.

WellnessUI DesignBooking System

Visit Live Site

AliraStays.com

WordPress Development

Developed a visually-driven website for a hospitality client, centering on showcasing properties with high-quality imagery and an intuitive inquiry process.

HospitalityVisual DesignUI/UX

Visit Live Site

Ayurvishwa Healthcare Client Project Thumbnail

AyurvishwaHealthcare.com

WordPress Development

Built a comprehensive website for a healthcare provider, designed to be informative and trustworthy with easy access to service information.

HealthcareInformationalTrust

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Prasar.net

WordPress Development

Developed a corporate communications website focused on delivering information clearly and effectively, with a fully responsive design.

CorporateCommunicationsResponsive

Visit Live Site

Shopify E-commerce

Sparclights.in

Shopify E-commerce

Developed a complete e-commerce store for a lighting brand, focusing on a high-conversion shopping experience and a seamless checkout process.

E-commerceProduct SEOTheme Customization

Visit Live Site

Young & Billionaire Shopify Project Thumbnail

YoungAndBillionaire.co.in

Shopify E-commerce

Designed and built a trendy, visually-driven e-commerce site for a modern fashion brand, involving custom theme adjustments to match the brand's aesthetic.

FashionBrandingVisual Design

Visit Live Site

Contact Me

Have a project in mind or want to connect? Feel free to reach out.

Get in Touch

You can reach me via email, phone, or find me on social media. I'm always open to discussing new projects and opportunities.