Pravin Prajapati — Freelance Full-Stack Developer & AI Agent Expert
Python Developer · Java Developer · AI Agent Developer · Web
Scraping Expert · PHP eCommerce Developer
I am a results-driven freelance full-stack developer with 5+ years of
hands-on experience delivering production-grade software solutions for
clients worldwide. I specialize in Python development (Django, Flask,
FastAPI), Java development (Spring Boot, Servlets), AI agent
development, web scraping automation, and PHP eCommerce website
development. Available for freelance, part-time, and contract work
globally.
About Me
As a freelance full-stack developer, I build scalable backend systems,
intelligent AI agents with LangChain and LLMs, automated web scraping
pipelines, custom eCommerce platforms, and interactive web
applications. My portfolio includes 19+ completed projects spanning
Python, Java, AI/ML, Computer Vision, and web technologies. Whether
you need to hire a freelance Python developer, an affordable Java
developer for projects, or a custom AI agent developer — I deliver
professional-grade solutions on time and within budget.
Services
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Python Development: Django web applications, Flask
APIs, FastAPI microservices, REST API development, Celery task
queues, PostgreSQL, MongoDB
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Java Development: Spring Boot REST APIs, Java
Servlets, Spring Security, JPA/Hibernate, microservices
architecture, JUnit testing
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AI Agent Development: Custom AI agents with
LangChain, OpenAI, local LLaMA3 deployments, multi-agent
orchestration, chatbot development, prompt engineering
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Web Scraping Automation: Selenium, BeautifulSoup,
Crawlee, OCR-based document extraction (100K+ docs/month),
large-scale data extraction pipelines
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PHP eCommerce Development: Custom online stores,
shopping cart, payment gateway integration, product management,
SEO-optimized storefronts
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Automation Workflows: Invoice processing
automation, digital marketing pipelines, data processing,
cloud-native orchestration with Docker and AWS
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Game Development: Browser-based games with
TypeScript, HTML5 Canvas, React — including Snake game, Tic Tac Toe
AI, and 2048 puzzle
Key Projects
Web OS Portfolio — Interactive Operating System in the Browser
A fully interactive operating-system-style portfolio built with React,
TypeScript, Tailwind CSS, and Zustand. Features draggable windows, a
taskbar, file explorer, terminal, and embedded applications.
Demonstrates advanced state management, window manager architecture,
and complex CSS layout techniques. A unique Web OS developer portfolio
experience.
Neural Snake — Cyberpunk Snake Game
A cyberpunk-themed browser snake game with neon visuals, progressive
difficulty levels, combo chain mechanics, and a retro-futuristic HUD.
Built with TypeScript and HTML5 Canvas featuring smooth rendering,
keyboard and touch controls, and persistent high scores. Showcases
game loop architecture, collision detection, and responsive canvas
rendering.
TicTacToe AI — Minimax Algorithm Game
A polished Tic Tac Toe game powered by the minimax algorithm with
alpha-beta pruning for optimal AI moves. Features adjustable
difficulty levels (Easy, Medium, Hard), animated move placements,
winner highlighting, score tracking, single-player AI and two-player
local modes, glassmorphic UI, and dark mode support.
Invoice OCR System — AI-Powered Document Processing
End-to-end OCR pipeline extracting structured data from scanned
invoices using Python, OpenCV, and EasyOCR. Processes 100,000+
documents per month with advanced image preprocessing and automated
data cleaning.
Digital Marketing Multi-Agent Dashboard
Built 25+ automation agents for social media posts, analytics, content
scheduling, and campaign management. Demonstrates expertise in agentic
AI development and multi-agent orchestration.
eCommerce Web Platform
Full-featured Django-based online store with user authentication,
shopping cart, secure payment gateway integration, and admin
management. A complete Python/PHP eCommerce solution.
Skills & Technologies
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Programming: Python, Java, TypeScript, JavaScript,
C/C++
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Python Frameworks: Django, Flask, FastAPI, Celery
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Java Frameworks: Spring Boot, Servlets, Spring
Security, JPA/Hibernate
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AI/ML: LangChain, OpenAI, LLaMA, OCR, Computer
Vision, NLP, YOLO, DeepSORT, U-Net, MediaPipe
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Web Scraping: Selenium, BeautifulSoup, Crawlee,
EasyOCR
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Web Development: React, HTML/CSS, REST APIs,
Tailwind CSS
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Databases: PostgreSQL, MongoDB, MySQL, SQLite
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Cloud & DevOps: AWS (EC2, S3, IAM), Google Cloud,
Docker, Kubernetes, GitLab
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Security: Hashing, Encryption, URL/Phishing
Detection, Authentication
Education
Master of Computer Applications (MCA) — Indus
University (2022–2024). Advanced Java, Python, Data Science, Computer
Vision, NLP, IoT.
Bachelor of Computer Applications (BCA) — Gujarat
University (2019–2022). Data Structures, Database Systems, Java,
Python, Networking, Operating Systems.
Frequently Asked Questions
Are you available for freelance or part-time work?
Yes. I am available for freelance projects, part-time contracts, and
long-term retainer arrangements worldwide.
How can I hire you as a freelance Python developer?
Email me at pravin.prajapati0126@gmail.com with your project
requirements. I respond within 24 hours.
What AI agent development services do you provide?
I build custom AI agents using LangChain, OpenAI, local LLaMA3, and
OpenRouter API for multi-agent orchestration, chatbots, and automation
workflows.
Can you build a custom web scraping solution?
Yes. I specialize in web scraping automation using Selenium,
BeautifulSoup, and Crawlee, processing 100K+ documents per month.
Contact — Hire Me Today
Available for freelance, part-time, and contract work worldwide.
Response time: within 24 hours.
DSA Lab — Data Structures & Algorithms Explorer
Master Data Structures and Algorithms with our interactive DSA Lab.
Practice Arrays, Trees, Graphs, Sorting, Searching, and Dynamic
Programming with Python & Java code examples, visual diagrams, and
complexity analysis — all for free, no login required.
What You Can Learn
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Beginner: Arrays, Strings, Linear Search, Binary
Search, Bubble Sort, Selection Sort, Insertion Sort
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Intermediate: Linked Lists, Stacks, Queues, Hash
Tables, Recursion
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Advanced: Binary Search Trees, Graphs (BFS & DFS),
Merge Sort, Quick Sort, Dynamic Programming
Who Is This For?
College students, self-taught developers, coding interview candidates,
Python and Java developers looking for clean code examples, and
educators seeking a visual DSA reference tool.
DSA Lab FAQ
Q: What is DSA Lab? A: An interactive platform to
explore Data Structures and Algorithms with visual diagrams, Python &
Java code, and complexity analysis.
Q: Is DSA Lab free? A: Yes, completely free with no
login required.
Q: Does it have Python and Java code? A: Yes, every
topic includes both Python and Java implementations with a copy
button.
Q: Is it good for interview prep? A: Absolutely.
Covers Binary Search, Trees, Graphs, DP, and all major interview
topics.