Blog
Technical writing on cloud architecture, AWS infrastructure, backend engineering, payment systems, AI, and machine learning.
Designing Reliable Payment Webhooks for Production Systems
Learn how to design idempotent, resilient webhook handlers for Stripe, PayPal, and GMO that survive retries, network failures, and race conditions.
How I Structure Backend Services with Microservices and gRPC
A practical guide to designing microservices communication with gRPC, including service discovery, error handling, and the lessons learned from production systems.
Practical AWS Architecture for Small Engineering Teams
How to build a cost-effective, production-ready AWS setup for a startup or small team — covering EC2, RDS, S3, IAM, and the monitoring stack that actually matters.
Building AI Chatbots with LLM APIs in Backend Systems
A backend engineer's guide to integrating OpenAI and Gemini APIs — covering streaming, context management, rate limiting, cost control, and production patterns.
Lessons from Deep Learning Anomaly Detection on Sensor Data
What I learned building an ML model for COVID-19 detection using electronic nose sensor data — from data preprocessing and TensorFlow model design to edge inference on Raspberry Pi.