Engineering Manager, Payments and Monetization at OLX Indonesia. 10+ years of backend work in Go, Node.js and Java. Payments, billing and the systems around them.
Payments and monetization for a classifieds marketplace with millions of monthly listings.
11 engineers across 17 backend services. Leading the strangler migration of a live PHP payments monolith to Java 21 / Spring Boot 3 without pausing checkout.
Scope of ownership: order and checkout, coupons, catalog, invoicing, payment gateway integrations.
Online travel booking: flights, hotels, events.
Owned refund and payment-status services in Go through two holiday peaks at several thousand bookings per minute.
Peer-to-peer microfinance for women-led businesses in rural Indonesia.
Built loan disbursement and weekly repayment services in Go and Node.js used by field agents in over 20 provinces.
Digital platforms for the Ministry of Education, used by teachers and schools nationwide.
Backend APIs in Node.js for teacher onboarding and content delivery, serving hundreds of thousands of accounts in the first year.
Custom software for enterprise clients.
First production systems: inventory and invoicing modules in Java, delivered to three clients.