Makhmud Djaid

I’m a QA Engineer with 2+ years of experience testing backend-driven and integration-heavy systems in fintech and logistics. I focus on validating multi-step workflows across APIs, databases, and asynchronous services to protect end-to-end reliability.

I’m experienced in verifying transactional correctness and cross-system consistency. In integration work, I validate REST API and PostgreSQL interactions, investigate inconsistent states and balance mismatches using logs and SQL, and reproduce edge cases affecting financial operations and recovery flows.

At Bank CenterCredit, I tested failure scenarios and verified system stability under partial outages, then collaborated directly with developers to isolate and resolve integration defects. At Spark Logistics, I tested microservice-based platforms with asynchronous processing and diagnosed cross-service defects caused by delayed events and state transitions.

I also strengthen quality through automation and structured testing. I’ve contributed to API-level automation using Kotlin (JUnit, Kotest) and, earlier at EQUATOR, performed manual testing for web and mobile applications (Java/Spring, Flutter, Laravel), designing test cases and executing regression, exploratory, and integration testing in Agile teams.