Platform architecture
Service boundaries, APIs and data flows for payments and busy products. They make sense on day one and still make sense on day 1,000.
01Hello
I’m a Platform Architect with 17+ years in backend and platform engineering. I design and build systems for payments, e-commerce and AI, from the first API to Kubernetes in production. I’ve led teams of 20, and I still write code every week. Cheerful about the work, precise about the details.
02The name
People ask about the name, so here is the short story. It has three parts.
Wawan Kurniawan. Short, simple, mine.
This is a person, not a company. One name for my work, my notes and my side projects.
I was born in July. Seven is also for Sheila on 7, a band I love, and for CR7, my football hero.
The logo is seven bars that draw a W. The last bar is gold. The dot on top is a ball, because I still love football.
03What I do
In plain words: I design the shared parts that many teams use every day. Systems that stay calm when traffic grows, and stay simple when the team changes.
Service boundaries, APIs and data flows for payments and busy products. They make sense on day one and still make sense on day 1,000.
Docker, Kubernetes and GitOps CI/CD. I move teams from “git pull on the server” to deploys that anyone can run safely.
Agentic AI, voice agents and RAG with LangGraph and Qdrant. Built for production, with the same care as any backend.
Eight years as VP of Engineering, with teams of 10 to 20. Hiring, mentoring, budget and a clear roadmap.
04Track record
I don’t have side products to show yet. So here are three stories from my jobs, and the places I’ve worked.
05Off the clock
I love music, and I play the guitar. Nothing serious, just for fun. Sheila on 7 is always on the playlist.
Football is my hobby. I love to play, even if my knees are getting old. My hero is Cristiano Ronaldo, CR7.
One day I want to live in the Gulf. The desert gold on this site is a small nod to that plan.
I’m improving my English, one conversation at a time. This site uses simple words on purpose.
06Now
07Say hello
Email is the best way to reach me. I read every message, and I reply when I can.