May 2023 – May 2025 · 2 yrs · Remote

• Messaging System 💬⚡
• Designed and built a real-time notification microservice supporting WhatsApp, SMS & Email channels.
• Owned the entire lifecycle: POC → development → deployment → production support & issue resolution.
• Developed an in-house WhatsApp chat platform enabling businesses to directly engage with customers.
• Supported order cancellations 🛑, complaint raising 📢, and two-way conversations 💬.
• Integrated majority of WhatsApp Business features: Messages, Templates, Media sharing, and Webhooks 🔗.
• Implemented scalable architecture to handle high throughput of notifications with low latency.
• Optimized delivery pipeline with retries, dead-letter queues, and monitoring dashboards 📊.
• Ensured secure and reliable communication with proper error handling, logging, and alerting.
• Collaborated with cross-functional teams (Product, Ops, QA) to align business needs with technical delivery.