Harry S.

🚀 𝗜 𝗵𝗲𝗹𝗽 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀 𝗮𝗻𝗱 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲𝘀 𝗯𝘂𝗶𝗹𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗟𝗟𝗠-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗔𝗜 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, 𝗮𝗴𝗲𝗻𝘁𝘀, 𝗮𝗻𝗱 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀—𝗿𝗲𝗮𝗱𝘆 𝗳𝗼𝗿 𝗿𝗲𝗮𝗹 𝘂𝘀𝗲𝗿𝘀, 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗱𝗲𝗺𝗼𝘀.

𝗦𝗲𝗻𝗶𝗼𝗿 𝗔𝗜, 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with 18+ years of experience delivering production-grade systems, React native mobile apps and LLM-powered AI systems and production agents.

I specialize in building AI-native products including AI agents, RAG pipelines, AI-native mobile apps, copilots, and intelligent automation workflows—combined with scalable mobile, web, and cloud architectures.

Delivered solutions for Stanford University, PetMeds, and Passport Mobile (vendor to Microsoft & Google), along with venture-backed startups and enterprise clients.

💡 𝗪𝗛𝗔𝗧 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥

• LLM-powered AI Mobile Apps (iOS, Android, React Native)
• LLM-powered Web Applications
• AI-native SaaS Platforms & Cloud Systems
• AI Agents & Autonomous Workflow Systems
• RAG (Retrieval-Augmented Generation) Systems
• Custom LLM Integrations & AI Solutions

🤖 𝗟𝗟𝗠-𝗣𝗢𝗪𝗘𝗥𝗘𝗗 𝗔𝗜 & 𝗜𝗡𝗧𝗘𝗟𝗟𝗜𝗚𝗘𝗡𝗧 𝗦𝗬𝗦𝗧𝗘𝗠𝗦

• LLM integrations (GPT-4.x/5-class, Claude, LLaMA, Mistral)
• AI copilots & conversational systems (memory, context, tool calling, guardrails)
• Advanced RAG pipelines + vector DBs (Pinecone, FAISS, Weaviate, pgvector)
• Hybrid retrieval (vector + BM25, reranking, semantic search)
• Prompt engineering (few-shot, structured outputs, eval loops)
• Agentic AI systems (multi-step reasoning, tool orchestration)
• Model orchestration (routing, fallback, optimization)
• Real-time LLM systems (streaming, async pipelines, caching)
• Embeddings pipelines (indexing, metadata filtering, re-ranking)
• AI personalization & recommendation systems
• LLM-based analytics (biometric & time-series data)
• Hybrid LLM + rules-based validation systems

📱 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗣 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 (𝗦𝗖𝗔𝗟𝗘𝗗 𝗦𝗬𝗦𝗧𝗘𝗠𝗦)

• React Native (AI-integrated cross-platform apps)
• State — Redux Toolkit, React Query, Zustand
• Real-time — WebSockets, messaging systems
• Offline-first & background systems
• Push — APNs, FCM • CI/CD & store deployment • Performance optimization • iOS — Swift, SwiftUI, UIKit, Combine, Objective-C • Android — Java, Android SDK, Jetpack • Architectures — MVVM, VIPER, Clean Architecture