Open to opportunities

Subham Sarkar

@subhamsarkar1

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Backend & AI engineer building FastAPI microservices and LLM-powered RAG systems for real-time products.

India

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What I'm looking for

I’m open to remote roles worldwide, working asynchronously across time zones on production backend and AI/LLM systems—especially RAG, microservices, and end-to-end ML deployment with strong CI/CD.

I build AI/LLM-powered backends and production ML pipelines—most recently shipping a FastAPI microservices chatbot backend at xLayer Technologies (deployed via Docker on AWS S3).

I’ve designed retrieval flows using Milvus for semantic search and context retrieval, and I’ve integrated Hugging Face models into scraping + API automation for multi-channel communication.

I also bring full-stack and systems experience through Next.js/React apps and secure REST APIs, plus end-to-end delivery with CI/CD and Docker across my internships and projects.

Experience

Work history, roles, and key accomplishments

Software Developer Intern

xLayer Technologies

Aug 2025 - Jul 2026 (11 months)

Built an AI chatbot backend with FastAPI and microservices architecture, deployed on AWS S3 with Docker. Designed a Milvus vector database with 250+ embeddings for semantic search and context retrieval.

fastAPI Docker S3 Milvus Hugging Face REST APIs JWT

VR Developer

Tata Motors Limited

May 2025 - Jul 2025 (2 months)

Built a Unity/C# VR training simulation for welding with adaptive learning modules. Integrated ONNX models into Unity for 12% faster AI inference and automated CI/CD pipeline for simulation analytics.

Unity C#Onnx CI CD

Software Developer Intern

Elitech Earth Science Pvt. Ltd.

Jun 2024 - Jul 2024 (1 month)

Built Power BI dashboards tracking 10+ KPIs, reducing equipment downtime by 20%. Deployed predictive models behind Flask APIs, cutting error rates 12% versus prior methods.

Power BI Flask predictive modeling Data Analysis