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Manish Kumar Yadav

@manishkumaryadav1

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Python Developer at Larsen & Toubro building Django 5 backend systems, REST APIs, and real-time features.

India

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At Larsen & Toubro, I architected backend systems using Django 5 and developed REST APIs, improving response times by 2–3x through query optimization.

I also integrated Redis caching and implemented background processing with Celery. I developed real-time features with Server-Sent Events and WebSockets, and worked with PostgreSQL to optimize schemas, indexes, and queries.

As a Freelance Full Stack Developer, I developed backend systems with Django and FastAPI, integrated React applications with APIs, and built live features using WebSockets and Django Channels.

At DECISIONXT, I developed APIs and contributed to CI/CD setup, led React feature development, and built a Chatbase-powered chatbot using structured data sources. Earlier, at INFOSYS LTD, I developed Flask and FastAPI services and worked on cloud environments and MongoDB performance.

Experience

Work history, roles, and key accomplishments

Current

Python Developer

Current

Larsen & Toubro

Dec 2025 - Present (10 months)

Architected and developed scalable backend systems using Django 5, led a cross-functional team, and designed high-performance REST APIs. Integrated Redis caching, Celery for async tasks, and real-time features using SSE and WebSockets.

Python PostgreSQL REST APIs React Django Celery Redis Geoserver

Freelance Full Stack Developer

Freelancing

Oct 2024 - Nov 2025 (1 year 1 month)

Designed and developed scalable backend systems using Django and FastAPI, implemented async task processing with Celery and Redis, and built real-time features with WebSockets. Integrated React frontends and optimized databases.

Flask Python MySQL NodeJS MongoDB REST APIs React Copilot Chatbase fastAPI Django

Associate Consultant

Decisionxt

Feb 2023 - Sep 2024 (1 year 7 months)

Developed and maintained RESTful APIs using FastAPI, SQLAlchemy, and Python & Node.js. Implemented JWT authentication, led React feature development, and contributed to CI/CD with Jenkins. Built a Chatbase-powered chatbot.

Flask Python MySQL NodeJS MongoDB REST APIs React Next.js AWS IAM EC2 Cloudwatch Copilot Chatbase fastAPI Django

Operation Executive

Infosys Ltd

Jan 2021 - Feb 2023 (2 years 1 month)

Proficient in Azure services and backend development with Flask, Python, and Node.js. Developed RESTful APIs, integrated MongoDB, and improved query performance. Contributed to CI/CD automation and built dynamic web applications with React.