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.
Requirements
- Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent experience).
- 6+ years of experience in QA/SDET/software engineering, with at least 2+ years designing frameworks and leading quality initiatives.
- Strong programming skills in Python, Java, or JavaScript/TypeScript (can design and extend frameworks).
- Expertise in modern automation tools (WebdriverIO, Cypress, Appium, Selenium, Playwright, REST Assured, etc.).
- Proven experience testing distributed systems / microservices architectures, including API contract testing and service mocking.
- Solid understanding of performance, load, and security testing (JMeter, Gatling, k6, OWASP).
- Hands-on with CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins, etc.).
- Exceptional debugging, analytical, and problem-solving skills.
- Strong communicator with experience influencing engineers and stakeholders at multiple levels.
- Experience with AI-assisted automation tools or integrating AI to optimize test coverage and efficiency.
Skills Required
- Bachelor's degree in Computer Science, Software Engineering, or related field
- 6+ years of experience in QA/SDET/software engineering
- At least 2+ years designing frameworks and leading quality initiatives
- Strong programming skills in Python, Java, or JavaScript/TypeScript
- Expertise in modern automation tools
- Experience testing distributed systems / microservices architectures
- Solid understanding of performance, load, and security testing
- Hands-on with CI/CD pipelines
- Exceptional debugging, analytical, and problem-solving skills
- Strong communicator with experience influencing engineers and stakeholders
What We Do
Founded in 2019, Ajaib is a rapidly growing investment platform in Indonesia. It offers financial technology services such as stock trading, mutual funds, and coins. The simplicity of investing through Ajaib inspired our name, which means "magic," as we aim to disrupt the financial industry magically. Our goal is to make stock trading accessible to millennials with our mobile-first approach, low fees, and user-friendly interface. Ajaib has become Indonesia's first fully online stock brokerage, with no offline brokers or branches. Trusted by over 3 million customers, we are the fastest-growing investment startup in Southeast Asia. Backed by top investors like DST Global, Horizons Ventures, and Alpha JWC Ventures, we proudly became Indonesia's first investment fintech unicorn.
