Sachin G.
AI-Powered MEAN/MERN Engineer | LLM Integration Specialist
โญ ๐๐จ๐ฉ-๐๐๐ญ๐๐ | ๐๐๐% ๐๐จ๐ ๐๐ฎ๐๐๐๐ฌ๐ฌ ๐๐๐จ๐ซ๐ | ๐+ ๐๐๐๐ซ๐ฌ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐ | $๐๐๐ค+ ๐๐๐ซ๐ง๐๐ | ๐๐๐๐+ ๐๐จ๐ฎ๐ซ๐ฌ You donโt just need fast code. You need well-architected, production-ready software delivered efficiently. Iโm a senior full-stack engineer with 7+ years of experience in Angular, React, and Node.js, combined with an AI-assisted development workflow (Cursor AI, Claude Code, v0, LLM APIs) that helps reduce build time without compromising quality. I focus on shipping clean, scalable products from AI-powered MVPs and LLM integrations to enterprise-grade web applications. ๐๐ซ๐จ๐ฏ๐๐ง ๐๐๐ฌ๐ฎ๐ฅ๐ญ๐ฌ: โAI SaaS Platform (9 days): Built a GPT-4o-powered document analysis tool with RAG, embeddings, and a React dashboard, launched to 200+ beta users. โE-Commerce Marketplace (6 days) Delivered an Angular + Node.js marketplace with Stripe payments, real-time inventory, and AWS deployment. โAutomotive ERP (12 days) Replaced a legacy system with a custom Angular ERP, reducing admin workload by 60%. ๐๐ก๐ฒ ๐๐ฅ๐ข๐๐ง๐ญ๐ฌ ๐๐จ๐ซ๐ค ๐๐ข๐ญ๐ก ๐๐: Efficient, AI-Assisted Delivery โ AI tools help accelerate development, reduce boilerplate, and catch issues early. Practical LLM Experience โ Real-world production use of OpenAI, Claude, Gemini, Replicate, ElevenLabs, and Fal.ai. End-to-End Ownership โ Frontend, backend, database, and deployment handled by one senior engineer. Consistent Track Record โ Top-Rated on Upwork with a 100% Job Success Score. Strong Technical Judgment โ I help shape the right solution, not just implement features. Clear, Reliable Communication โ Async-friendly, proactive updates, and transparent progress. ๐๐ก๐๐ญ ๐ ๐๐ฎ๐ข๐ฅ๐: AI-Powered SaaS MVPs โ Angular or React frontends with NestJS / Node.js backends Intelligent Chatbots & AI Agents โ Context-aware bots with tools, memory, and RAG AI Automation Workflows โ n8n or custom-built LLM-driven automations Enterprise Web Applications โ Advanced Angular apps (v10โ18) APIs & Microservices โ RESTful and GraphQL services E-Commerce & Payments โ Stripe, Braintree, Authorize.Net Custom ERP & Business Systems Third-Party API Integrations ๐๐๐๐ก ๐๐ญ๐๐๐ค & ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐: ๐๐ & ๐๐๐ ๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง: LLM APIs: OpenAI (GPT-4o), Anthropic Claude, Google Gemini, Replicate, ElevenLabs, Fal.ai RAG Pipelines: Embeddings, vector search, document ingestion & retrieval Automation: n8n workflows, custom LLM orchestration, model fine-tuning AI Dev Tools: Cursor AI, Claude Code, GitHub Copilot, Replit Agent Generative Pipelines: Text, image, audio, and video generation ๐ ๐ซ๐จ๐ง๐ญ๐๐ง๐: Angular 10โ18 (CLI, Universal/SSR, Ivy, Lazy Loading, Reactive Forms, i18n) React v18 (Hooks, Context, Next.jsโready) TypeScript & JavaScript (ES2022+) UI Libraries & Styling: PrimeNG, Angular Material, Tailwind CSS AI UI Tooling: v0 by Vercel, Lovable.dev, Bolt.new (rapid component generation) ๐๐๐๐ค๐๐ง๐: Node.js v18+, Express.js, NestJS API Architectures: RESTful APIs, GraphQL, WebSockets Databases: MySQL, PostgreSQL, MongoDB, SQL Server ๐๐ฅ๐จ๐ฎ๐ & ๐๐๐ฏ๐๐ฉ๐ฌ: Cloud Platforms: AWS (EC2, S3, Lambda), Microsoft Azure, Google App Engine, DigitalOcean Version Control & CI/CD: GitHub, GitLab, Bitbucket, automated pipelines Project Management: Jira, ClickUp, Trello Methodologies: Agile / Scrum ๐๐จ๐ฐ ๐ ๐๐จ๐ซ๐ค: Discovery & Scoping (Day 1): I review your requirements, define the architecture, select the right tech stack, and deliver a clear technical scope with realistic timelines, no guesswork or vague estimates. AI-Accelerated Build (Days 2โN): I use AI tools like Cursor AI and Claude Code to speed up development, refactor confidently, and catch issues early, maintaining high code quality while moving fast. Continuous Integration & Testing: Automated tests, cross-device QA, and performance optimization are built into every sprint, not treated as an afterthought. Cloud Deployment & Handoff: I handle production deployment on AWS or Azure, set up CI/CD pipelines, and provide clean documentation so your team can take over with confidence. Ongoing Support & Iteration: After launch, I support maintenance, security updates, and feature enhancements, acting as a long-term technical partner, not just a contractor. ๐๐๐ญโ๐ฌ ๐ฌ๐ก๐ข๐ฉ ๐ฌ๐จ๐ฆ๐๐ญ๐ก๐ข๐ง๐ ๐ซ๐๐๐ฅ. Send your idea, and Iโll respond with a clear scope and timeline within hours.