Mandeep Chauhan

Python Developer | Backend Developer | Data Science & ML

Talent

NoidaMember since October 9, 2026

PythonDjangoDjango REST FrameworkFastAPIFlaskREST APIsJWTRBACCRUDPostgreSQLMySQLRedisDockerPandasNumPyScikit-learnXGBoostEDAFeature EngineeringRegressionStreamlitPlotlySQLPHP

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PythonDjangoDjango REST FrameworkFastAPIFlask

About

Python Developer with 3+ years of experience building backend applications and REST APIs using Python, Django, FastAPI, and Flask, with hands-on experience in SQL databases (PostgreSQL, MySQL), Redis, authentication, CRUD operations, third-party API integrations, debugging, and delivering production applications for client projects. Also experienced in Data Science and Machine Learning using Pandas, NumPy, Scikit-learn, XGBoost, EDA, feature engineering, and Streamlit.

Experience

Backend Developer at Spirant Communication Pvt. Ltd. (2025-04 – 2026-07)

Built and delivered backend features for around 5 production web applications based on client requirements, using Python, Django/Flask, PHP, REST APIs, and databases.
Built and maintained authentication, authorization, CRUD operations, API integrations, and business logic, coordinating with frontend and QA teams on delivery.
Optimized MySQL queries and database operations across ~10 production tables, improving data retrieval by ~30%.
Contributed to UI implementation alongside backend work depending on project needs, and debugged production issues, helping reduce critical downtime incidents by ~20% and improve application stability by ~25%.

Backend Developer at CloudShope Technology (2023-04 – 2025-02)

Built backend services in Python and FastAPI for communication products (dialer, voice calling, SMS, click-to-call), developing REST APIs used by 1,000+ registered users.
Automated CRM and communication workflows with Python and REST API integrations, improving team productivity by ~40%.
Used Redis caching and PostgreSQL query optimization to reduce average API response time by ~35% under concurrent load.
Implemented JWT authentication and RBAC, containerized backend services with Docker, and integrated around 3 third-party APIs for communication and CRM workflows.