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Harsh Vansjaliya

Software Developer

Transitioning to Backend Development

Building scalable backend solutions and trading systems with 2+ years of experience

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About Me

My journey from frontend development to backend specialization

I'm a Software Developer with 2+ years of experience, currently transitioning into backend specialization. My journey began in frontend development, but I've discovered my passion lies in designing and building scalable, robust backend systemsthat power seamless user experiences.

At AlgoAcharya (fintech startup), I contributed to algorithmic trading platforms, working across the stack, from crafting responsive dashboards to optimizing APIs and database queries for performance. This hands-on work gave me a solid understanding of how frontend and backend connect in real-world systems.

Recently, I've been expanding my skills into backend engineering with Node.js, Python (FastAPI/Django), and Docker, alongside deep dives into system design, databases (PostgreSQL, Redis, MongoDB), and distributed systems. I'm also actively building algorithmic trading systems with Python, pandas, and risk management strategies, combining my tech skills with my passion for financial systems.

Currently Focusing On

• Building production-ready APIs with Node.js and Python

• Digging into system design and scalable backend architecture

• Working with PostgreSQL, Redis, and MongoDB in real projects

• Creating algorithmic trading strategies using Python + pandas

• Learning microservices concepts and distributed systems

• Deploying containerized apps with Dockerx

What Drives Me

Writing clean, maintainable code
Leveling up constantly
Shipping things that actually matter
Download Resume
Harsh Vansjaliya

My Expertise

Backend Engineering

Building reliable, scalable APIs with Node.js and Python; exploring microservices and distributed systems

Algo Trading

Designing trading strategies, automation pipelines, and data workflows with Python and pandas

Full-Stack Experience

Built fintech dashboards using React, Next.js, TypeScript, and Django

Quick Stats

2+
Years Experience
10+
Technologies
6+
Projects Built
∞
Learning Mode

Skills & Expertise

My technical journey and current focus areas - from frontend foundations to backend specialization

Current Focus Areas

Backend Focus
2023 - Present
Specializing in building scalable backend systems, high-performance APIs, and efficient service architectures.
Node.js
Express.js
FastAPI / Django
REST APIs
GraphQL
PostgreSQL
MongoDB
Redis
Frontend & Full-Stack
2022 - Present
“Building modern, responsive web apps with the React and Next.js ecosystem.
Next.js
React
TypeScript
JavaScript (ES6+)
Tailwind CSS
shadcn/ui
API Integration

Additional Skills & Tools

Algorithmic Trading
Analyzing market data and building automated trading workflows and strategy pipelines.
PythonpandasNumPyyfinanceJupyter NotebooksData Analysis
Databases
Schema design, indexing, and query optimization for relational & NoSQL databases
PostgreSQLMongoDBSQL ServerDatabase DesignQuery OptimizationIndexing
Tools & DevOps
Development workflow and deployment tools
GitGitHubBitBucketDockerDocker ComposePostmanVS CodeLinuxVercelCI/CD
Languages
Programming languages in active use
TypeScriptJavaScriptPythonJavaSQL

Professional Experience

My journey in software development: building trading platforms and scalable web applications

Algoacharya logo
A
Software Developer
Full-time
Algoacharya
•
Ahmedabad
Sept 2023 - May 2025
  • Built and maintained an algo-based trading platform for the Indian stock market.
  • Developed responsive UI with Next.js, TypeScript, and Tailwind CSS, including dark mode and a custom component library.
  • Integrated GraphQL & REST APIs, reducing data fetch latency by 40%.
  • Collaborated with designers and product managers to deliver trading features and tools.
  • Contributed to backend using Python (Django) and PostgreSQL, becoming a versatile full-stack contributor.

Technologies Used:

Next.js
TypeScript
Python
Django
PostgreSQL
GraphQL
Gujarat Informatics Limited (GIL) logo
G
.NET Developer Intern
Internship
Gujarat Informatics Limited (GIL)
•
Gandhinagar
Mar 2023 - May 2023
  • Developed government web applications using .NET Core and SQL Server.
  • Designed efficient database schemas, improving data retrieval speed by 25%.
  • Implemented REST APIs and authentication for secure user access.

Technologies Used:

.NET Core
SQL Server
REST API
C#

Featured Projects

Highlights of the projects I’ve built, from full-stack apps to trading systems

Shortify - URL Shortener
BackendIn Progress
Nov 2025
A high-performance URL shortening service built to explore system design principles and scalable backend architecture. Features hash-based ID generation, multi-database integration (PostgreSQL + Redis + MongoDB), and optimized caching strategies for sub-millisecond redirects.

Key Features

  • Hash-based short ID generation using SHA-256 + Base62 encoding
  • Three-tier caching architecture with Redis (7-day TTL)
  • Async database operations with SQLAlchemy and asyncpg

Technologies

PythonFastAPIPostgreSQLRedisMongoDBSQLAlchemyDockerasyncpg
View Source
Tailor Management System
Full StackIn Progress
Oct - Nov 2025
A full-stack tailor shop management system with separate frontend and backend. Built to manage customer orders, measurements, billing, and inventory with a modern tech stack implementing RESTful APIs and responsive UI design.

Key Features

  • Customer order & measurement tracking
  • Real-time inventory management
  • Billing & invoice generation

Technologies

Next.jsReactNode.jsExpressPostgreSQLTypeScriptTailwind CSSJWTDockerVitestDrizzle ORM
Backend CodeFrontend Code
Patient Management System
BackendCompleted
2025
A distributed healthcare management system built with Spring Boot microservices architecture. Designed to learn and implement enterprise-level backend patterns including API Gateway, service mesh communication, and event-driven architecture.

Key Features

  • 5-service microservices architecture
  • API Gateway with request routing & auth
  • gRPC inter-service communication

Technologies

JavaSpring BootMicroservicesgRPCKafkaPostgreSQLDockerJWT
Code
Algorithmic Trading Platform
FinTechProfessional Project
2023-2025
A sophisticated trading platform for the Indian stock market with automated strategies, real-time data analysis, and portfolio management capabilities.

Key Features

  • Real-time market data integration
  • Automated trading algorithm execution
  • Comprehensive backtesting system

Technologies

PythonDjangoPostgreSQLpandasNumPyyfinanceNext.jsGraphQL
Hotel Reservation Platform
Full-StackCompleted
2022
A full-stack hotel booking application inspired by Airbnb, built with modern web technologies. Features complete user authentication, property listings, booking system, and payment integration.

Key Features

  • User authentication and authorization system
  • Property listing with image galleries
  • Advanced search and filtering options

Technologies

Next.jsTypeScriptTailwind CSSPrismaNextAuth.jsReact-LeafletCloudinary
Code

Get In Touch

Let's talk about opportunities, collaborations, or tech in general.

Available for Opportunities

Currently open to backend developer positions and interesting project collaborations.

Contact Information

Email
harshvansjaliya3@gmail.com

Best way to reach me

Location
Gujarat, India

Available for remote work

Response Time
Within 24 hours

Usually much faster

Send Me a Message
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