QA Engineer – Mobile & Payments (Remote – EU And UK)

Overview

The client seeks an experienced QA Engineer to support the testing and release of a cross-platform mobile application with complex payment and hardware integrations. The role involves owning end-to-end quality assurance across iOS and Android mobile apps, backend services, and web-initiated workflows, with a strong emphasis on payments, NFC/Tap to Pay, and Bluetooth-connected devices.

This is a fully remote role, meaning work from EU and UK.

Responsibilities

The role involves:

• Performing end-to-end testing across mobile applications, backend services, and web-based flows

• Validating cross-platform mobile behavior on iOS and Android devices

• Testing payments and financial workflows, including Tap to Pay, NFC, and Bluetooth hardware integrations

• Verifying Stripe Terminal integrations, including device setup, transaction flows, and error handling

• Testing edge cases such as:

  • Device compatibility issues

  • Connectivity failures (Bluetooth, network, hardware interruptions)

  • Payment retries and recovery scenarios

• Validating real-time communication flows, role-based access control (RBAC), and invoice creation

• Supporting User Acceptance Testing (UAT) with internal and external stakeholders

• Ensuring app store readiness, including regression testing, release validation, and submission confidence

• Documenting defects clearly and collaborating closely with engineering and product teams to resolve issues

Required Experience & Skills

The ideal candidate has:

• Strong experience testing mobile applications on both iOS and Android

• Proven background testing payment systems, preferably including Stripe or similar payment providers

• Hands-on experience with:

  • NFC / Tap to Pay flows

  • Bluetooth-connected hardware devices

• Experience testing end-to-end systems spanning mobile apps, backend APIs, and web interfaces

• Comfort validating failure scenarios and edge cases, particularly in payments and connectivity

• Experience supporting UAT cycles and release processes

• Strong attention to detail and clear written communication for defect reporting

Nice to have:

• Prior experience with Stripe Terminal

• Familiarity with app store submission requirements (Apple App Store and Google Play)

Engagement Details

• Location: Remote (EU and UK)

• Start: As soon as possible

• Duration: Ongoing / project-based (details to be confirmed)

About Tribes

Tribes is committed to building inclusive, diverse, and equitable teams. We encourage applications from candidates of all backgrounds and experiences and believe that diverse perspectives create better products and stronger teams.