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Vinay User

@vinayuser7

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Staff/Lead engineer building production AI platforms—LLM integrations, RAG agents, and low-latency scalable systems.

India

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What I'm looking for

I’m looking to lead the design and delivery of reliable, low-latency AI-powered platforms—owning architecture, LLM integrations and orchestration, mentoring teams, and partnering cross-functionally to ship production-grade features fast.

I’m a Lead Software Engineer with 9 years of experience architecting and delivering AI-powered, production-grade systems and platforms for enterprise and consumer applications. I specialize in LLM integrations, agent design, and scalable backend systems using Node.js and Python, with a strong foundation in React—bringing reliability, clean code, automated testing, and CI/CD to every release.

Most recently at Nagarro, I led architecture and development of BCG’s Navi platform into an AI-powered knowledge system used by millions of consultants across 7 global practices. I managed a cross-functional team of 15 engineers, built LLM orchestration with tool invocation and agent patterns handling millions of daily requests with sub-second latency, and delivered real-time collaborative experiences using streaming responses and real-time updates. I also optimized RAG-ready data models in PostgreSQL, improved query performance by 40%, reduced load times by 30% and API response times by 25%, and set up GitHub Actions CI/CD with >90% test coverage and Datadog end-to-end observability—earning Nagarro’s Highly Valuable Award for technical excellence and business impact.

Experience

Work history, roles, and key accomplishments

Current

Staff Engineer (Lead)

Current

Nagarro

Nov 2021 - Present (4 years 6 months)

Led architecture and development of BCG’s Navi platform into an AI-powered knowledge system used by millions of consultants across 7 global practices. Managed a 15-engineer team and built scalable Node.js/Python (FastAPI) LLM integration, agent orchestration, and real-time collaborative features handling millions of requests with sub-second latency.

fastAPI Pydantic LLM Integrations Orchestration RAG PostgreSQL Streaming Responses AWS

Senior Software Engineer

Iron Systems

Jun 2020 - Nov 2021 (1 year 5 months)

Developed full-stack customer-facing solutions with Angular 8/TypeScript and Node.js APIs for 1M+ US customers, improving usability and engagement. Architected a real-time monitoring platform for 10,000+ delivery agents and modernized legacy Angular services, improving system performance by 40%.

TypeScript REST APIs PostgreSQL Monitoring Performance Optimization CI CD

Senior Engineer

Origa

Aug 2019 - Apr 2020 (8 months)

Led a 6-engineer team building a B2B SaaS loan management platform serving 100+ banking clients. Built React frontend, Node.js APIs, and MongoDB backend, improving feature delivery by 30% and reducing load times by 25% through caching, indexing, and query optimization.

React MongoDB Caching Indexing Query Optimization CI CD Unit Testing

Software Developer

Lumiq

Oct 2018 - Aug 2019 (10 months)

Built a B2B banking SaaS platform from scratch using Angular, Node.js, and PostgreSQL for loan risk analysis, onboarding 20+ financial clients within 3 months. Implemented loan calculation APIs and an automated reporting system, improving performance visibility by 40% and reducing response times by 35% via caching and code improvements.

Angular PostgreSQL Caching Performance Optimization Real Time Analytics

Senior Analyst

HCL Technologies

Feb 2017 - Sep 2018 (1 year 7 months)

Developed frontend for a Carnival cruise booking platform used by 5M+ users, improving UX and booking engagement. Led an Angular + Node.js migration with internationalization and improved page load times by 2X while enhancing accessibility and responsive design to WCAG standards.

Angular REST APIs Internationalization Real Time Analytics Performance Optimization Accessibility Responsive Design Migration Modernization