I'm Yehezkiel Wiradhika (A.K.A Hezky): a Go (Golang) Backend Engineer focused on microservices and distributed systems. Currently shipping production backend systems at PT. Century Batteries Indonesia (Astra Otoparts), building computer vision distributed backend architectures, computer vision model for component classification, serving 600+ users across multiple internal platforms such as LMS and battery request management system.
My primary stack is Go with Gin/Echo/Chi, gRPC (Protobuf) and Hexagonal / Clean Architecture. I build async event-driven systems with RabbitMQ, tune performance with Redis (caching, JWT token rotation, rate limiting), and deploy with Docker, Kubernetes, GitHub Actions, and Nginx. I monitor with Prometheus and Grafana and host on AWS. Day-to-day databases: PostgreSQL, MySQL, SQL Server. I've also built monolithic systems with PHP and Laravel and fullstack apps with Node.js, Next.js, and TypeScript when the job calls for it.
I write with a security-first mindset — backed by real offensive security experience: 20+ Web App and Network penetration tests at DPTSI ITS, hands-on with SIEM, IDS/IPS, Firewalls, and Honeypots. I occasionally build ML-powered security tools, including my thesis: "Statistical, Frequent Pattern Mining and Machine Learning based Web Honeypot Attack Data Analysis".