Hi, I'm Subhadeep Pattanayak.
Backend Engineer (.NET | Node.js | AWS)
5 years building production backend systems, payment solutions, and cloud services powering KFC Spain's digital ordering platform.
Work Experience
Backend Engineer
Cognizant (KFC Spain)- Architected scalable REST APIs for KFC Spain's online ordering, ensuring 200,000+ monthly orders process smoothly during peak traffic.
- Engineered event-driven serverless pipelines (Lambda, EventBridge), enabling seamless integration with Uber Eats & Catcher.
- Optimized payment processing logic, reducing payment failures from 5% to 0.1% and significantly improving successful order completion.
- Developed the backend for the "Order From The Table" QR-code feature, accelerating dine-in adoption across 300+ stores.
- Built the Google Pay integration for the checkout flow, providing an additional seamless payment option while maintaining compatibility with legacy systems.
Featured Projects
Meeting Assistant
CompletedA Windows desktop application that captures live meeting audio and uses LLM APIs to instantly generate actionable summaries.
Realtime Cloud Clipboard
LiveA highly concurrent cloud clipboard featuring markdown support and sub-second multi-device synchronization.
Technical Skills
Languages
Backend
Databases
Cloud
Frontend
Tools
Engineering Philosophy
I enjoy building reliable backend systems that solve real business problems. I value simplicity, observability, maintainability, and performance over unnecessary complexity. Currently, I am expanding my knowledge in Java, Spring Boot, System Design, and Kubernetes to build even more robust distributed applications.
Let's Talk Engineering
If you are looking for an engineer who builds reliable, scalable backend systems, I'd love to connect.