Senior QA Engineer

Career Lab Pty

Full-time

On-site

Johannesburg, South Africa

QA Engineer

Senior QA Engineer with strong experience in test automation and a

focus on ensuring the quality and reliability of our mobile apps (React Native, iOS, Android,

Harmony OS) and backend services (Rails, REST APIs, Sidekiq, PostgreSQL,

Heroku/Digital Ocean).

R45000 - R52 000

Design, develop and maintain automated test frameworks for mobile apps (React

Native, iOS, Android, Harmony OS) and backend services (Rails, REST APIs).

Build and extend test coverage for UI, API and mobile app workflows, ensuring

strong automation for reliable releases.

Integrate automated tests into CI/CD pipelines (GitHub Actions, Firebase Test Lab) to

ensure efficient, repeatable testing.

Explore and implement new testing tools and practices to improve automation and

streamline testing processes.

5+ years in QA engineering, with strong experience in test automation.

Expertise in React Native, iOS, Android and Harmony OS mobile app testing.

Experience with API testing (e.g., Postman, REST Assured) and a solid

understanding of integration testing.

Proficiency in JavaScript/TypeScript, Ruby, or Python for automation scripting.

Strong debugging and problem-solving skills with the ability to analyze complex

issues across distributed systems.

Ability to work effectively within a team and share knowledge with colleagues as

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