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Gojek(Goto Financial) | May 2022 - present Tech Stack: Clojure, Java, Go, React, PostgreSQL, Redis, Kafka Working in sanctions team, that’s managing and taking actions against fraudulent transations Building internal dashboard for the analysts to be able to engage efficiently to analyse and prevent misbehaviours Took initiatives to revamp the existing frontend codebase and follow good…

Debugging a memory leak in a Clojure service

Background Fraud Rules Service (FRS) is a rule engine in Goto Financial’s sanctions platform (my team). FRS lets you write dynamic rules to fight against fraud. FRS operates on a large scale. It is integrated into several points such as payments, login, and KYC, with the list going on. It is handling about 180k requests per minute including ingestion + fraud evaluation with 100ms as response…