Open to opportunities

Keshav Vaishnav

@keshavvaishnav

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AI-Native Backend Engineer | Building the infra behind intelligent apps — FastAPI · LangChain · Node.js · AWS

India

Message

What I'm looking for

I’m looking to build high-impact, data-intensive backend systems with strong ownership, clean/testable Django code, and direct product collaboration—where performance, reliability, and secure API design matter.

Results-driven Python Backend Engineer with 2+ years of experience building scalable microservices, RESTful APIs, and AI-powered SaaS products using Django, FastAPI, and LangChain. Proven track record of delivering production-grade systems end-to-end — from architecture and database optimisation to AWS deployment and CI/CD pipelines. Hands-on experience integrating Large Language Models (LLMs) and RAG pipelines into real-world applications. Proficient with pytest for unit and integration testing, and adept with AI coding assistants including ChatGPT and Gemini to accelerate development velocity. Comfortable owning backend systems independently while collaborating cross-functionally to define APIs, data flows, and system architecture.

Experience

Work history, roles, and key accomplishments

Current

Django Backend Engineer

Current

ExeLance IT

Jan 2024 - Present (2 years 5 months)

Owned Django backend development across multiple SaaS products, delivering ETL automation with Python/Pandas and Celery-based workflow orchestration on AWS. Improved production performance and reliability by reducing API latency ~60%, resolving a 2-year backlog via microservices refactoring in 3 months, and rebuilding a CRM communication engine for 10,000+ contacts with 99%+ email deliverability c

Python Django Django REST Framework Celery Pandas AWS Pytest