Yatinj S.

𝐍𝐞𝐞𝐝 𝐚 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐡𝐨 𝐜𝐚𝐧 𝐡𝐚𝐧𝐝𝐥𝐞 𝐭𝐡𝐞 𝐞𝐧𝐭𝐢𝐫𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 - 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐨𝐧𝐞 𝐩𝐢𝐞𝐜𝐞 𝐨𝐟 𝐢𝐭? I’m a Full Stack Developer and Stripe Developer helping businesses build, scale, fix, and improve SaaS products, web applications, APIs, and payment systems. My strongest area is where Full Stack Development meets Stripe Integration, API Integration, backend logic, and complex business workflows. I can step into an existing codebase, understand how everything works, identify the real issue, and implement the solution without needing every technical detail explained to me. I can help you with: 𝐒𝐭𝐫𝐢𝐩𝐞 & 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 End-to-end Stripe development including Stripe Checkout, Payment Intents, Stripe Subscriptions, recurring billing, Stripe Connect, marketplace payments, webhook integration, refunds, payouts, invoicing, and payment synchronization. 𝐒𝐚𝐚𝐒 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Building and improving SaaS applications, dashboards, customer portals, subscription platforms, marketplaces, and internal business applications across frontend, backend, database, APIs, and deployment. 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 REST API development, third-party API integration, webhook architecture, authentication, role-based access, database logic, background processes, and complex business workflows. 𝐄𝐱𝐢𝐬𝐭𝐢𝐧𝐠 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐓𝐫𝐨𝐮𝐛𝐥𝐞𝐬𝐡𝐨𝐨𝐭𝐢𝐧𝐠 Working with existing applications to fix bugs, add new features, resolve Stripe or API issues, improve performance, and stabilize production systems. 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Building responsive, production-ready applications using React, Next.js, JavaScript, and TypeScript, with clean integration into backend services and APIs. 𝐀𝐖𝐒 & 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 AWS deployment, environment configuration, application releases, production troubleshooting, and ongoing technical support. 𝐒𝐭𝐫𝐢𝐩𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Stripe integration can look straightforward until subscriptions, webhooks, failed payments, Stripe Connect accounts, refunds, prorations, or production edge cases enter the picture. 𝐈 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐩𝐚𝐲𝐦𝐞𝐧𝐭 𝐟𝐥𝐨𝐰𝐬 𝐬𝐮𝐜𝐡 𝐚𝐬: Customer → Checkout → Payment → Webhook → Database → Application Access 𝐈 𝐜𝐚𝐧 𝐚𝐥𝐬𝐨 𝐡𝐚𝐧𝐝𝐥𝐞 𝐚𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐒𝐭𝐫𝐢𝐩𝐞 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐦𝐞𝐧𝐭𝐬 𝐢𝐧𝐯𝐨𝐥𝐯𝐢𝐧𝐠: - Stripe Subscription lifecycle management - Recurring billing - Upgrades, downgrades, trials, and prorations - Stripe Connect account onboarding - Marketplace payment integration - Commissions, transfers, and payouts - Failed payment handling - Refund and invoice workflows - Stripe webhook integration and debugging - Duplicate event handling - Payment status synchronization - Test-to-live Stripe migration - Existing Stripe payment integration fixes Whether you are implementing Stripe from scratch or fixing a payment system already running in production, I can work across the entire flow rather than only the checkout screen. 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I work across the complete application stack: Frontend → Backend → Database → APIs → Payments → Deployment This is useful for projects where multiple parts of the system need to work together correctly instead of being developed in isolation. 𝐈 𝐟𝐫𝐞𝐪𝐮𝐞𝐧𝐭𝐥𝐲 𝐰𝐨𝐫𝐤 𝐨𝐧: - SaaS application development - Subscription-based platforms - Marketplace applications - Admin dashboards - Customer portals - Internal business systems - API-heavy applications - Payment-driven platforms - Existing products requiring ongoing development I can take ownership of a complete feature, from database structure and backend logic through API integration and frontend implementation. 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Frontend: React, Next.js, JavaScript, TypeScript Backend: Node.js, PHP, Laravel, REST APIs Database: PostgreSQL, MySQL, MongoDB, Firebase Payments: Stripe, Stripe Connect, Stripe Subscriptions, Payment Intents, Webhooks Cloud: AWS I also have extensive experience with Flutter Development, which is useful for projects where web and mobile applications share the same backend, APIs, authentication, or Stripe infrastructure. If you already have an application, you don’t need to prepare a perfect technical specification before contacting me. Share the current setup, the problem you are facing, or the outcome you want to achieve, and I can help determine the cleanest implementation approach.