Vaibhav P.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Full-Stack & Mobile Architect delivering launch-ready SaaS platforms, iOS/Android apps, and integrated AI systems in weeks, not months. End-to-end execution covers the entire pipeline, from initial system architecture and Node.js/Python backend code to React Native frontends and App Store publishing. Whether you're a founder launching an MVP or an engineering team scaling an existing platform, you get production-ready software shipped at maximum velocity. ► Core Engineering Focus • Full-Stack SaaS & Web Applications: Multi-tenant SaaS architectures, custom web platforms, admin portals, and secure API backends built with Node.js, Python, TypeScript, and React. • Cross-Platform Mobile Engineering: High-performance iOS and Android apps using React Native and Flutter. Native feel, offline-first sync, payment processing, and store release pipelines. • Applied AI & Intelligent Systems: Production RAG pipelines, custom LLM integrations (OpenAI, Claude, Gemini), semantic vector search, and autonomous workflow agents built into web and mobile UIs. ► High-Velocity Engineering Workflow To build fast without creating messy code or technical debt, I integrate modern AI tools into my daily development process: • System Specs & Logic: Using Claude to convert raw inputs into structured architecture docs, user flows, and edge-case mapping before writing code. • Rapid UI & Backend Scaffolding: Utilizing tools like Emergent and Antigravity to quickly build clean foundational bases. • Core Engineering: Writing production-ready logic, custom integrations, and complex features using Cursor for speed and precision. • Key Features & Payments: Implementing Stripe billing, secure auth, real-time WebSockets, and operational admin panels. • Testing & QA: Automated test-case generation with Cursor to catch bugs before production releases. • Clean Handover: Full technical documentation generated via Cursor and Windsurf so your team can maintain the codebase easily. ► Technical Toolkit • Full-Stack & Web: React, Next.js, Node.js, Python (FastAPI/Django), TypeScript, REST APIs, GraphQL • Mobile: React Native, Flutter, iOS, Android, Redux, Zustand • AI Stack & Tools: Cursor, Claude, Windsurf, LangChain, LlamaIndex, OpenAI & Anthropic APIs, Vector DBs (Pinecone, ChromaDB) • Databases & Cloud: PostgreSQL, MongoDB, Redis, AWS, Firebase, Docker ► Domain & Industry Experience HealthTech (HIPAA compliance), EdTech, E-Commerce & Multi-Vendor Marketplaces, Social & Community Platforms. Message me with what you are building, and I will outline a direct technical roadmap and timeline for your product launch.