Open to opportunities

Parminder singh

@parmindersingh4

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Senior full-stack engineer building AI-driven, retrieval-enabled systems with scalable microservices.

India

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What I'm looking for

I’m looking for a team where I can own end-to-end delivery of full-stack products, apply LLMs/RAG and agentic AI responsibly, and build scalable microservices on cloud-native infrastructure with strong engineering ownership.

I’m an SDE-3 / Senior FullStack engineer focused on building retrieval- and agentic-AI powered products that turn messy data into reliable outcomes. I’ve pioneered AI bots that autonomously query databases, leverage knowledge bases, and use MCP servers for dynamic data, with a MERN stack retrieval and intelligent task execution approach.

My work blends RAG, embeddings, and LLMs to deliver production-grade document intelligence—engineering a Document Extraction system that uses OCR to extract key data from unstructured and structured documents with 98% accuracy. I also drive measurable impact through system design: improving security by 40% and profit by 30% via scanning pipelines, building KYC workflows (WhatsApp + OCR + Liveness Check), and scaling throughput while preventing message loss using DLQ with event-driven architectures on AWS/Kubernetes.

Experience

Work history, roles, and key accomplishments

Current

SDE-3 (FullStack)

Current

GameChange

Jan 2023 - Present (3 years 4 months)

Built agentic AI bots for database querying, knowledge-base retrieval, and MCP-driven dynamic data workflows. Engineered RAG-based document extraction achieving 98% accuracy, improved security by 40% and profit by 30%, and increased WhatsApp campaign throughput from 100 messages/min to 50–60 msg/s using event-driven microservices.

MERN Stack RAG Microservices RabbitMQ MongoDB

Senior Software Developer

Turion

Feb 2021 - Dec 2022 (1 year 10 months)

Drove product development from concept to revenue using React.js, Node.js, and MySQL, generating $35K/month. Reduced QA effort by 60% with Mocha test cases and increased reliability by implementing a RabbitMQ queue for email delivery and socket-based events.

React Node MySQL Mocha RabbitMQ WebSockets Subscription Billing API Development

Software Engineer

ClickLabs Pvt Ltd

Jan 2019 - Jan 2021 (2 years)

Redesigned and developed a question module by changing schema to reduce tree-view fetch time from 31s to 1s and delete time from 43s to 1s. Delivered cost savings of $16,500/month by building an internal Juggernaut-ERP to replace Jira/greytHR and saved $40,000 via faster service delivery; also implemented zero-touch deployments using Jenkins and Cloudflare APIs.

Backend Engineering Performance Tuning Socket.IO Cloudflare ERP Development