Hi, I'm Harsh Vansjaliya

Full-Stack Developer

Building High-Performance Web Applications

I build products end to end: React/Next.js frontends, Node.js APIs, and the PostgreSQL schemas underneath, with 3+ years shipping production code

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{
  "name": "Harsh Vansjaliya",
  "role": "Full-Stack Developer",
  "experience": "3+ Years",
  "status": "Active",
  "specialties": [
    "Scalable API Architectures",
    "High-Performance Frontends",
    "Database Optimization"
  ]
}
$
01 — About

About Me

Background, how I work, and the numbers behind it

Harsh Vansjaliya

Harsh Vansjaliya

Based in Gujarat, India

Full StackFinTechAPIs
Download Resume

I'm a full-stack developer with 3+ years of experience building web applications end-to-end, from React/Next.js frontends to Node.js and Python backends. I like owning a feature from database schema to shipped UI, and I care about the unglamorous parts (error handling, caching, migrations) as much as the visible ones.

I spent my first two years at AlgoAcharya building trading dashboards and APIs for real-time market data - that's where I got serious about performance and API design. Now at Alite Projects, I own features end to end: React/Next.js frontends, Node.js APIs, Redis caching, and the PostgreSQL/MongoDB schemas underneath. I still gravitate toward backend problems when they show up - job queues, caching, data modeling - but I'm not choosing sides anymore.

Primary Engineering Focus

•Building full-stack apps with Next.js & Node.js
•Designing scalable REST & GraphQL API architectures
•Optimizing data storage with PostgreSQL, MongoDB & Redis
•Implementing CI/CD and containerization using Docker
02 — Skills

Skills & Expertise

My technical capabilities organized by category - from core backend specialization to cloud architectures and frontend integrations. Tap a technology to see it in action.

Backend Development

2023 - Present

Building scalable backend systems, well-structured APIs, and production-ready service architectures.

· · · · · · · · · · · · · n8n Automation · JWT Authentication · Caching Strategies · API Design

Frontend Development

2022 - Present

Developing modern, responsive user interfaces and integrating complex backend APIs.

· · · · · · JavaScript (ES6+) · API Integration

Cloud & DevOps

2023 - Present

Deploying, containerizing, and managing applications on cloud infrastructure.

· · AWS EC2 · AWS S3 · AWS IAM · CI/CD · Linux · Vercel · Git · GitHub · Bitbucket · Postman

Database & System Concepts

2023 - Present

Designing efficient data models and optimizing database performance.

Schema Design · Query Optimization · Indexing · Transactions · Normalization

Python & Market Data Analysis

2023 - Present

Working with market data to analyze trends, visualize insights, and experiment with trading strategies.

· pandas · NumPy · Matplotlib · Seaborn · yfinance · Jupyter Notebooks · Data Analysis · Basic Strategy Backtesting

Languages

2022 - Present

Programming languages used across backend, frontend, and automation projects.

· · JavaScript · Java · SQL

03 — Experience

Professional Experience

Where I've worked, and what I built while I was there

01
Alite Projects logo

Software Developer

Full-time
Alite Projects
•
Vadodara, India
Dec 2025 - Present

Design complex third-party API integrations, orchestrating automated workflows with n8n, and managing scalable data models in PostgreSQL and MongoDB.

  • Architect and implement end-to-end platform features, engineering high-throughput backend APIs in Node.js paired with Redis caching, and building sleek React/Next.js frontends.
  • Develop scalable web architectures using TypeScript, establishing a reusable component library, and optimizing client-side performance.
Frontend: Next.js, React, TypeScript, Vite, Tailwind CSS, MUIBackend: Node.js, n8nData: PostgreSQL, Redis, MongoDB
02
Self Employed logo

Software Developer

Self-employed
Self Employed
•
Vadodara, India
May 2025 - Present

Built Shortify, a URL shortener with a custom hash-based short-ID generator and a multi-layer Redis cache.

  • Architect independent full-stack applications end-to-end, from API design through deployment, using Node.js, FastAPI, MongoDB, Redis, and Docker.
  • Apply Domain-Driven Design and clean architecture principles to keep growing codebases maintainable.
  • Building Tailor Track, a SaaS platform for tailor shops to manage orders, measurements, and inventory.
  • Study system design, async message queues (BullMQ), and performance profiling in my own time.
Frontend: Next.js, TypeScriptBackend: Node.js, FastAPIData: MongoDB, RedisInfra: Docker

Related work: Shortify - URL Shortener, Tailor Track

03
AlgoAcharya logo

Software Developer

Full-time
AlgoAcharya
•
Ahmedabad, India
Sept 2023 - May 2025

Designed and integrated unified GraphQL and REST API layers, reducing client data-fetch latency by 40%.

  • Co-engineered a high-frequency algorithmic trading platform for the Indian stock market, managing high-throughput real-time financial streams.
  • Crafted a performant user interface using Next.js, TypeScript, and Tailwind CSS, implementing dark mode support and custom reusable UI component libraries.
  • Partnered with cross-functional product and design teams to deliver low-latency charting tools, trading terminals, and portfolio metrics.
  • Extended into full-stack work, designing PostgreSQL database schemas and writing backend logic in Python/Django.
Frontend: Next.js, TypeScriptBackend: Python, Django, GraphQLData: PostgreSQL

Related work: Algorithmic Trading Platform

04
Gujarat Informatics Limited (GIL) logo

.NET Developer Intern

Internship
Gujarat Informatics Limited (GIL)
•
Gandhinagar, India
Mar 2023 - May 2023

Optimized relational database schemas and queries in SQL Server, increasing data retrieval speed by 25%.

  • Developed secure public-sector web applications using the .NET Core framework and C#.
  • Implemented secure token-based authentication and designed RESTful endpoints to facilitate seamless data communication.
Backend: .NET Core, REST API, C#Data: SQL Server
04 — Projects

Featured Projects

A few of the systems I've built: full-stack products, backend APIs, and an algorithmic trading platform for the Indian stock market.

Full-Stack·In ProgressJun 2026 - Present
01

Tailor Track

A tailoring business management system for small and medium tailoring shops, built as a Turborepo monorepo with a Next.js web app, an Expo mobile app, and an Express + PostgreSQL API sharing a single validation layer.

  • Designed around the real day-to-day workflow of a family-run tailoring shop
  • Multi-shop workspaces with role-based membership (owner/staff)
  • Customer management with per-customer measurement records
Frontend: Next.js, React, TypeScript, Tailwind CSS, shadcn/ui, TanStack Query, ZustandMobile: Expo, React NativeBackend: Node.js, Express, BullMQ, REST APIs, ZodData: PostgreSQL, Prisma, RedisInfra: Turborepo
Self-employed projectIn development · not yet publicRead the case study →
FinTech·Professional ProjectSep 2023 - May 2025
02

Algorithmic Trading Platform

A trading platform for the Indian equities market, built during my time at a fintech startup. I focused primarily on the frontend, with some backend contributions.

  • Trading dashboard and portfolio views
  • Strategy and backtesting interfaces
  • GraphQL-driven data layer for efficient client-server communication
Frontend: Next.js, React, TypeScript, Tailwind CSS, shadcn/ui, Axios, ZustandBackend: Python, Django, Celery, GraphQL, REST APIsData: PostgreSQLInfra: Docker
Built while at AlgoAcharyaClosed-source · professional projectRead the case study →
Backend·CompletedNov 2025
03

Shortify - URL Shortener

A URL shortener built to practice backend system design past basic CRUD. Combines deterministic hashing, MongoDB storage, and a tiered Redis cache to keep redirects fast as the mapping table grows.

  • Hash-based short ID generation using SHA-256 + Base62 encoding, scoped per user
  • Three-tier caching architecture with Redis (7-day TTL, refreshed on every hit)
  • Full CRUD API - create, redirect, delete, and list recent short URLs
Backend: Python, FastAPI, REST APIsData: MongoDB, RedisInfra: Docker, Docker Compose
Self-employed projectView SourceRead the case study →
Full-Stack·CompletedMay - Jun 2023
04

Hotel Reservation Platform

A full-stack hospitality marketplace inspired by Airbnb, built with Next.js and Prisma. Covers multi-provider auth, host listings with map-based search, and a full booking flow from browsing to reservation.

  • Multi-provider authentication - GitHub, Google, and email/password
  • Host workflow for creating listings with Cloudinary image uploads
Frontend: Next.js, React, TypeScript, Tailwind CSS, React-Leaflet, ZustandBackend: Node.js, NextAuth.js, CloudinaryData: Prisma, MongoDB
CodeRead the case study →
05Spotify Clone - Music Streaming PlatformCompletedAug - Sep 2023

A full-stack music streaming app inspired by Spotify, built with Next.js and Supabase. Handles song uploads, playback, liked songs, and Stripe-powered premium subscriptions.

Frontend: Next.js, React, TypeScript, Tailwind CSS, Zustand · Backend: Node.js, Supabase, Stripe · Data: PostgreSQL

06Messenger Clone - Real-Time Chat AppCompletedMay - Jul 2023

A real-time chat app built with Next.js, Prisma, and Pusher to get hands-on with real-time architecture beyond request/response CRUD. Supports one-on-one and group conversations, image messages, and live read receipts.

Frontend: Next.js, React, TypeScript, Tailwind CSS · Backend: Node.js, NextAuth.js, Pusher, Cloudinary · Data: MongoDB, Prisma

View All Projects
05 — Contact

Get In Touch

Not on the job market right now, but always up for a good systems-design conversation or the right project. Reach out.

Contact Information

Email Address
harshvansjaliya3@gmail.com

Best way to reach me

Current Location
Gujarat, India

Available for remote contracts

Typical Response
Within 24 hours

Usually much faster

Send Me a Message
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