Arnav Ranjan

AI/Full-Stack Engineer with production experience designing and shipping autonomous LLM agent systems, multi-agent orchestration frameworks, and AI-powered applications. Skilled in LLM integration (OpenAI, Gemini), retrieval-augmented generation, vector search, and agentic workflow automation, paired with strong backend (Node.js, TypeScript) and cloud (AWS) engineering. Built and open-sourced an autonomous agent harness adopted via npm; led AI feature delivery as sole engineer on a startup MVP from architecture through production deployment.

MVP Technical Lead - Attain Higher LLP

(2025-07 - 2026-03)

Led end-to-end AI product architecture and delivery as sole engineer on a founding team, taking the system from design through production deployment on Project: Nestora.

• Integrated OpenAI and Gemini LLM APIs to power core AI workflows, including document OCR pipelines built on AWS Textract
• Designed a hybrid multi-database architecture combining graph (Neo4j), vector (Pinecone, ObjectBox, sqlite-vec) for semantic search, and relational/local storage (SQLite, DynamoDB)
• Built and maintained production REST APIs and real-time systems using Node.js and TypeScript within a Monorepo architecture
• Developed cross-platform mobile and web applications using React Native, Next.js, and shadcn/ui
• Deployed event-driven cloud infrastructure on AWS (SQS, SNS, EventBridge Scheduler, AppSync, EC2, Amplify, S3) and implemented Google OAuth 2.0 / AWS Cognito authentication

B.Tech - Computer Science and Engineering - IIIT Sri City (2023 - 2027)