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Vipin Kumar

@vipinkumar2

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GenAI software engineer building production RAG and agentic systems with Python.

India

Message

What I'm looking for

I want to build production GenAI systems (RAG/agents) and high-throughput Python backends, owning scalable architecture that improves accuracy/latency and reliability, with room to mentor and grow.

I’m a GenAI Software Engineer and Python Backend Developer at Hashedin by Deloitte, where I build end-to-end RAG systems and production-ready agentic platforms. I developed Corrective RAG (CRAG) to detect and remediate low-confidence retrievals, and built stateful multi-agent workflows with LangChain, LangGraph, and DeepAgent.

I’ve also shipped real-time, voice-interactive evaluations using Gemini/OpenAI with 95% accuracy in recognition and feedback generation. On the backend, I optimized FastAPI throughput by 40% and reduced latency by 30% using WebSockets and asyncio.Queue, and deployed a multi-language isolated execution sandbox that supports 1,000+ daily submissions with sub-second startup.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer II

Current

Hashedin by Deloitte

Mar 2024 - Present (2 years 2 months)

Built end-to-end RAG pipelines and Corrective RAG (CRAG) to auto-detect and remediate low-confidence retrievals, boosting answer accuracy. Designed a production agentic framework and voice-interactive Viva Evaluator with 95% accuracy, and improved FastAPI backend throughput by 40% while reducing latency by 30% using WebSockets and asyncio.Queue.

Corrective RAG (CRAG)LangGraph AutoGen Multi agent orchestration fastAPI WebSockets AsyncIO Vector Databases

Software Engineer I

Hashedin by Deloitte

Oct 2022 - Mar 2024 (1 year 5 months)

Architected a cloud-agnostic Django IaC solution integrating AWS/GCP with Terraform, auto-generating CI/CD pipelines and cutting environment setup time by 75%. Built scalable plagiarism detection (10,000+ files/hour, +20% precision), optimized GraphQL APIs from 2s to 600ms, and mentored teammates on backend architecture and debugging.

Django GraphQL Terraform AWS GCP CI CD Pipelines CI CD Automation Mentoring

Software Engineer Associate

Hashedin by Deloitte

Mar 2022 - Oct 2022 (7 months)

Completed intensive training in Angular, React, Spring Boot, and Docker, then led a cross-functional squad to deliver a functional prototype within one month. Coordinated design, development, and testing while applying system design and collaboration best practices.