Kirtika T.

I build custom web applications and SaaS platforms for startups, founders, and growing businesses - from developing new products to improving and scaling existing systems. ⭐ Top Rated Plus freelancer on Upwork ⭐ 3,000+ hours completed on Upwork ⭐ 11+ years of full-stack development experience My focus is building reliable applications with maintainable architecture, intuitive frontend experiences, and backend systems that support real business workflows. **CORE EXPERTISE - SaaS & CUSTOM WEB APPLICATIONS** - SaaS platform and custom web application development - React and Next.js frontend development - Node.js, Express, PHP, and Laravel backend development - Admin panels, dashboards, portals, and business workflows - Database design and integration using PostgreSQL, MySQL, and MongoDB - Application modernization, optimization, and ongoing development **API DEVELOPMENT & SYSTEM INTEGRATIONS** - REST API and GraphQL development - Third-party API integrations and webhooks - CRM integrations with HubSpot, GoHighLevel, and Zoho - Payment integrations with Stripe, PayPal, and Razorpay - Workflow automation using Zapier and Make - Subscription billing, recurring payments, and custom business logic **SECONDARY EXPERTISE - WORDPRESS, SHOPIFY & ECOMMERCE** - Custom WordPress and WooCommerce development - Shopify store development and customization - Ecommerce functionality and payment integrations - Custom plugins, themes, and platform enhancements **TECHNOLOGY STACK** Frontend: React, Next.js, Vue.js, JavaScript, TypeScript, Redux, Tailwind CSS Backend: Node.js, Express.js, PHP, Laravel Databases: PostgreSQL, MySQL, MongoDB, Firebase Cloud & Deployment: AWS (EC2, S3, Lambda, CloudFront), Docker, CI/CD Integrations: REST APIs, GraphQL, Webhooks, Stripe, PayPal, Razorpay, HubSpot, Zoho, GoHighLevel I work with clients who need more than isolated development tasks. Whether you are launching a SaaS product, building a custom business platform, integrating multiple systems, or improving an existing application, I focus on clean execution, reliable functionality, and scalable architecture. If you have a product or application in mind, send me a message with what you're looking to build or improve. We can discuss the right technical approach.