Girish D.

AI-Powered Web Apps Expert|SaaS Product Developer | MERN/MEAN Stack

Top-Rated Full Stack Developer specializing in full stack development with 5+ years of experience building scalable web applications, RESTful APIs, enterprise-grade SaaS platforms, AI-powered applications, and intelligent AI platforms. I deliver end-to-end solutions from database architecture and backend API development to responsive front-end UI/UX, AI integration, testing, and deployment. Core Skills & Technologies: Frontend: Angular (2–17), Angular Material, RxJS, TypeScript, HTML5, CSS3, SCSS, Bootstrap, Three.js, Tailwind CSS, jQuery, Progressive Web Apps (PWA) Backend: Node.js, Express.js, RESTful API, GraphQL, WebSockets, Microservices Architecture, JWT Authentication, OAuth2, LangChain.js AI & AI App Development: OpenAI, Claude, Gemini, LangChain, AI Agents, RAG, LLM Integration, AI Chatbots, AI Automation, AI-powered SaaS platforms, AI APIs, Prompt Engineering, Vector Databases, Document Intelligence Database: MongoDB, Mongoose ODM, PostgreSQL, MySQL, Redis, Firebase Firestore, Data Modeling, Aggregation Pipelines DevOps & Cloud: AWS (EC2, S3, Lambda), Google Cloud Platform, Docker, CI/CD Pipelines, GitHub Actions, Nginx, PM2, Heroku, DigitalOcean Tools & Practices: Git, GitHub, Bitbucket, Agile/Scrum, JIRA, Postman, Swagger/OpenAPI, Jest, Mocha, Chai, Unit Testing, TDD What I Build: * Full Stack Web Applications and MEAN Stack Applications * AI-Powered Web Applications and AI Platforms * Custom AI Apps, AI Agents, Chatbots, and LLM-based Solutions * RAG and Document-Based AI Applications * Custom REST APIs and GraphQL APIs * Real-Time Applications, Chat, and Notifications * E-Commerce Platforms and Payment Gateway Integrations * Admin Dashboards, CRM Systems, and SaaS Platforms * Multi-Tenant SaaS Applications * Third-Party API and AI API Integrations * Authentication Systems with JWT, OAuth2, and Social Login * Database Design, Optimization, and Migration * Legacy Code Refactoring and Performance Optimization Why Clients Choose Me: * Clean, maintainable code built for scalability and long-term support * Strong experience combining traditional full stack development with AI technologies * Clear communication with regular updates and transparent timelines * Full project ownership from architecture and development to testing and deployment * Agile, MVP-first approach with a focus on delivering practical results * Post-delivery support and long-term maintenance Industries Served: FinTech | HealthTech | EdTech | E-Commerce | Logistics | Real Estate | HR & Recruitment | Social Platforms | IoT | AI & SaaS Whether you need a full stack developer to build a product from scratch, develop an AI-powered application, integrate AI into an existing platform, fix an existing codebase, or scale your SaaS product, I'm a reliable, results-driven developer focused on building solutions that work and scale.