Senior Software Development Engineer in Test

Ajaib is Indonesia’s leading fintech platform, is seeking a highly skilled Sr. Software Development Engineer in Test II (Sr. SDET II) to drive quality engineering across our rapidly scaling microservices platform. As the technical leader of our QA/SDET function, you’ll shape test strategy, build cutting-edge automation frameworks, and mentor SDETs to deliver zero-defect releases at scale. This is a senior individual contributor role with technical leadership responsibilities - ideal for someone passionate about test architecture, advanced automation, and quality culture, without full-time people management duties.

What You’ll Do • Own test strategy and automation architecture for multiple squads or product areas spanning backend, frontend, and mobile. • Design, build, and scale test automation frameworks for API, UI, contract, integration, and performance testing. • Partner with engineering leads and architects to embed testability and quality gates into designs and CI/CD pipelines. • Mentor and upskill SDET engineers, review their test designs, and drive best practices across squads. • Lead cross-functional initiatives on non-functional testing — performance, reliability, security, and chaos engineering. • Collaborate with DevOps to optimize test pipelines for speed, scalability, and reliability. • Diagnose complex production issues, perform root-cause analysis, and drive systemic fixes. • Innovate and introduce tools, test data solutions, mocks, and dashboards that improve developer productivity and release confidence.