Ajay K.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 Oct 14, 2026.

𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 | 𝐄𝐑𝐏 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 | 𝐌𝐢𝐝𝐝𝐥𝐞𝐰𝐚𝐫𝐞 | 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 Disconnected business systems create delays, duplicate work, and inconsistent data. I help organizations solve these challenges by designing secure, scalable integrations that connect ERPs, CRMs, eCommerce platforms, payment gateways, and third-party applications into a unified ecosystem. With 𝟖+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 in enterprise software development and system integration, I build robust API-driven solutions that automate workflows, synchronize business data in real time, and simplify complex business processes. Whether you need Freshdesk, Shopify, Stripe, PayPal, Airtable, Webflow, Slack, WhatsApp Business API, or a custom integration, I can architect and implement an integration strategy that grows with your business. ➤ 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗣𝗿𝗼𝘃𝗶𝗱𝗲 𝐀𝐏𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 • REST API development • Third-party API integration • Custom API design • GraphQL implementation • Webhook development • OAuth authentication • API security & documentation • Real-time data synchronization 𝐄𝐑𝐏 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Connect ERP platforms with CRM, accounting software, eCommerce stores, payment gateways, customer support tools, and internal applications to create seamless business workflows. 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 • Product & inventory synchronization • Order automation • Customer data management • Fulfillment workflows • Shopify Admin API integration 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐆𝐚𝐭𝐞𝐰𝐚𝐲 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Secure implementation of: • Stripe • PayPal • Subscription billing • Checkout automation • Invoice generation • Payment reconciliation 𝐅𝐫𝐞𝐬𝐡𝐝𝐞𝐬𝐤 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Automate customer support operations through: • Ticket synchronization • Customer record mapping • Notification workflows • Reporting automation • CRM connectivity 𝐌𝐢𝐝𝐝𝐥𝐞𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Develop scalable middleware solutions that: • Connect multiple applications • Transform and validate data • Execute business rules • Orchestrate enterprise workflows • Improve system interoperability 𝐀𝐢𝐫𝐭𝐚𝐛𝐥𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 Build Airtable-powered operational systems including: • CRM automation • Custom dashboards • Workflow automation • Database synchronization • Business process management 𝐖𝐞𝐛𝐟𝐥𝐨𝐰 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 • CMS synchronization • Form processing • Lead automation • Membership workflows • Backend API connectivity 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨 Integrate business messaging platforms including: • WhatsApp Business API • Slack • Automated alerts • Team notifications • Approval workflows ➤ 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Freshdesk • Shopify • Stripe • PayPal • Airtable • Webflow • WhatsApp Business API • Slack • Odoo • ERPNext 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 REST APIs • GraphQL • Webhooks • OAuth • Middleware • Event-driven Architecture ➤ 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 Node.js • Python • Java • PHP • .NET 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 React • Angular • Vue.js 𝐂𝐥𝐨𝐮𝐝 AWS • Microsoft Azure • Google Cloud Platform 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 PostgreSQL • MySQL • MongoDB ➤ 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗦𝗲𝗿𝘃𝗲𝗱 SaaS • ERP • Retail & eCommerce • Logistics • Healthcare • Financial Services • Education • Agencies • Enterprise Operations ➤ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲 ➛8+ years of enterprise integration experience ➛100+ hours successfully delivered on Upwork ➛Strong expertise in API and ERP integration ➛Scalable middleware architecture ➛Secure and maintainable backend solutions ➛Automation-focused implementation ➛Reliable communication and long-term support ➛Experience integrating CRM, ERP, payment, support, and commerce platforms ➤ 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗖𝗼𝗻𝗻𝗲𝗰𝘁 𝗬𝗼𝘂𝗿 𝗦𝘆𝘀𝘁𝗲𝗺𝘀? If you're looking to integrate business applications, automate manual workflows, or build a reliable middleware solution, I can help you design, develop, and deploy an integration architecture tailored to your business needs. Let's discuss your requirements and build a connected, scalable ecosystem that improves efficiency and supports future growth. 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: API Integration | ERP Integration | Middleware Development | System Integration | Workflow Automation | REST API | GraphQL | Webhooks | OAuth | Shopify Integration | Freshdesk API | Stripe Integration | PayPal Integration | Airtable Integration | Webflow Integration | WhatsApp Business API | Slack Integration