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Ajaib

Software Development Engineer in Test (SDET)

Jakarta , Indonesia
full-time

AI overview

Drive quality engineering across a rapidly scaling microservices platform by owning test strategy and automation architecture while mentoring SDET engineers and optimizing CI/CD pipelines.

Ajaib is Indonesia’s leading fintech platform, is seeking a highly skilled Software Development Engineer in Test (SDET) to drive quality engineering across our rapidly scaling microservices platform. As SDET function, you’ll implements automated tests for assigned modules, maintains scripts, ensures basic test coverage. You will also works under guidance of senior SDETs, participates in code reviews and QA tasks.

What You Will 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).
  • 3+ years of experience in QA/SDET/software engineering
  • 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.
Ajaib

We’ve been experiencing hyper-growth the past year, becoming Indonesia’s 7th Unicorn Startup and the first Investment Fintech Unicorn in South East Asia merely 2,5 years after Ajaib first launched. With the global financial technology market expected to grow gradually, we aim to make stock trading accessible for millennials through our mobile-first approach. In 2022, we opened our new head office in the Indonesia Stock Exchange Building, and we’re just getting started!The three principles or what we call as 3DNAs became the foundation and sets the guideline for the Magician belief system: Everyone is an owner, Growth Mindset, and A Will to Win.

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