We are looking for a senior QA engineer who investigates rather than just reports. You will own quality across a React Native mobile app and a Next.js web experience, backed by Java/Spring Boot services behind a Node BFF. The work is hands-on: real devices, developer tools, logs, and APIs, not only clicking through the UI. The single most important non-technical trait we are hiring for is clear communication.
TESTING & INVESTIGATION (~60% of the role)
- Execute manual and exploratory test passes against web and mobile releases, working from acceptance criteria, designs, and your own curiosity about where things break.
- Debug the React Native application on real iOS and Android devices as well as simulators and emulators: reading native device and crash logs, using React Native's debugging tooling (Metro, the JS console, React DevTools), inspecting network traffic, working with pre-release and over-the-air builds, and reproducing issues across OS versions and device classes.
- Use Datadog (logs, dashboards, error tracking, RUM/session replay) to triage reported issues,



confirm whether a bug is client-side or server-side, and attach real evidence to a ticket.
- Test REST APIs directly, not just through the UI, validating request/response payloads, status codes, error handling, and edge cases for the Java/Spring Boot services and Node BFF.
- Validate auth/authorization and role-based access at the API level, not just what is visible in the UI.
- Test service-to-service and data-pipeline behavior, e.g. confirming events land correctly downstream rather than only checking the originating call succeeded.
- Test idempotency, retries, and failure/edge-case handling in backend logic.
- Write bug reports another engineer can act on without a follow-up conversation: clear repro steps, environment, expected vs presente, logs, network calls, screenshots or recordings.
- Build and maintain regression suites and release checklists, and help move repetitive coverage toward automatio

📌 Quality Assurance Automation Engineer (Argentina)
🏢 DevBorn
📍 Argentina