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Job Description

Our middleware platform is the integration backbone of our digital commerce stack - connecting front-end applications (iOS, Android, Web, Kiosk) with internal systems and third-party partners like DoorDash and Uber Eats. As quality engineering becomes increasingly critical to how we ship, the Senior Quality Engineer, Middleware will own the validation of the reliability, performance, and correctness of the services built by our Senior Software Engineers.





You’ll design and execute test strategies that go well beyond functional correctness - covering load and stress testing, contract validation, fault injection, and end-to-end integration scenarios across a distributed, serverless AWS architecture. You’ll work in close partnership with software engineers to shift quality left, embedding automated testing earlier in the development cycle.

AI-assisted development is a core part of how our team works. You’ll be expected to use tools like GitHub Copilot and Claude daily - to accelerate test authoring, generate test data, analyze failure patterns, and document coverage - and to help drive their adoption across the team.

Essential Functions
- Design, build, and maintain automated test suites covering functional, integration, and contract testing for middleware APIs and services - ensuring each service behaves correctly in isolation and in concert with upstream and downstream dependencies.
- Leverage AI-assisted tools (GitHub Copilot, Claude,

📌 Senior SDET (Argentina)
🏢 Santex
📍 Argentina