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Rahul Sonar

Python Developer | FastAPI | Django | AI/ML

4+ years building production-ready backend systems, APIs, and scalable applications with Python.

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Tech Stack:
Python FastAPI Django PostgreSQL Docker ML

About Me

I'm a Python developer with 4+ years of experience building robust backend systems and production-ready applications. My expertise spans FastAPI, Django, and modern Python frameworks for creating scalable, high-performance solutions.

I've worked across multiple domains including payment gateway integration, attendance systems with face recognition, and AI-powered NLP applications. I'm passionate about clean code architecture, database optimization, and deploying ML models as production-ready APIs.

Currently working at Unitusk Technologies, I continue to develop innovative backend solutions and explore emerging technologies in AI/ML. I hold Oracle OCI certifications in Generative AI and Data Science, and have published research on Stock Trade Recommendations using Graph Neural Networks.

Years of Experience

4+

Projects Completed

15+

Publications

2

Certifications

6

Technical Skills

Programming

Python SQL JavaScript Shell Scripting

Backend & APIs

FastAPI Django RESTful APIs Webhooks OAuth2 JWT

Databases

PostgreSQL MySQL SQLite Redis

Deployment & DevOps

Docker Kubernetes CI/CD GitHub Actions

AI/ML Tools

HuggingFace Numpy Pandas OpenCV PyTorch TensorFlow

Other Tools

Git Razorpay API GPS APIs Transformers

Featured Projects

Payment Gateway Integration with Razorpay

Built a FastAPI service with secure REST endpoints for processing payments and handling Razorpay webhooks asynchronously. Used PostgreSQL to store transaction records and added robust error handling to ensure payment reliability.

FastAPI Razorpay API PostgreSQL Python

Employee Attendance System with Face & Location Verification

Developed a Django system to record employee check-ins using face recognition and GPS location data. Created APIs to save attendance records with timestamp, GPS location, and face verification results.

Django PostgreSQL GPS APIs Face Recognition

AI-Powered News Summary API

Built an AI-powered summary API using pre-trained NLP Transformer models to generate concise summaries from news content. Integrated the summary API into a news website to provide users with summarized news on demand.

Transformer FastAPI Python HuggingFace

Django Inventory System for Diamond Manufacturing

Developed a comprehensive Django-based inventory system for a diamond manufacturing company to track diamond packets across cutting, polishing, QC, and dispatch stages. Added features for SKU-level stock tracking, weight management, movement logs, and real-time status updates.

Django PostgreSQL Python SQLite

Work Experience

Python Developer

July 2023 - Present

Unitusk Technologies • Vadodara

Built and maintained backend services using FastAPI, and Django, improving API performance and reliability. Deployed ML models as production-ready APIs using FastAPI and Docker.

Data Science Intern

Dec 2022 - Jan 2023

Exposys Data Labs • Bengaluru

Supported ML workflows through data cleaning and preprocessing. Gained hands-on experience with data science best practices.

Python Developer

Aug 2019 - Mar 2021

Emptai IT Services • Surat

Worked with a team to develop Django-based inventory system for diamond manufacturing company to track diamond packets across cutting, polishing, QC, and dispatch. Added features for SKU-level stock, weight tracking, movement logs, and real-time status updates.

Education

Master of Technology in Information Technology

July 2021 - May 2023

Parul University • Vadodara

8.21 CGPA

Bachelor of Technology in Information Technology

July 2016 - Jun 2019

Government Engineering College • Modasa

8.23 CGPA

Certifications & Publications

Publications

Graph neural networks for stock trading recommendations

May 2024

Published research paper on Graph neural networks for stock trading recommendations

Knowledge graph for stock trading recommendations

June 2023

Published research paper on Knowledge graph for stock trading recommendations

Certifications

Oracle OCI 2025 Certified Generative AI Professional

Issued Oct 2025 • Expires Oct 2027

Oracle

Oracle OCI 2025 Certified Data Science Professional

Issued Oct 2025 • Expires Oct 2027

Oracle

Machine Learning

Issued Aug 2023

Udemy

Deep Learning

Issued Aug 2023

Udemy

Data Science

Issued Aug 2023

Udemy

TensorFlow

Issued July 2023

Udemy

Let's Work Together

Have a project in mind? I'd love to hear from you. Get in touch and let's create something amazing.