Payments QA Engineer — API, EMV & POS

Qu; Arlington (TX); Hybrid; USD 75,000 - 110,000; Full time

Job summary

Qu in Arlington, TX is seeking a hybrid QA specialist focused on payments, API testing, and EMV hardware integrations across our POS platform.

You will design manual and automated tests for payment APIs, UI flows, and EMV interactions, collaborate with cross-functional teams, and contribute to CI/CD and certification processes.

Strong communication and detail orientation are essential as you validate card-present and card-not-present workflows in web-based environments.

Qualifications

• Design and execute manual and automated test cases for payment APIs, UI flows, and EMV hardware interactions.
• Perform functional, regression, and device-level testing of payment workflows (card present/card not present).
• Validate RESTful APIs using Postman, including auth flows, error handling, and integration behaviors.
• Participate in L3 certification process testing with payment partners and contribute to certification documentation.
• Collaborate with QA, Product, and Engineering to define test plans, acceptance criteria, and edge cases.
• Use browser dev tools to inspect request/response payloads; investigate logs and backend activity.

Responsibilities

• Design and execute manual and automated test cases for payment APIs, UI flows, and EMV hardware interactions.
• Perform functional, regression, and device-level testing of payment workflows (card present/card not present).
• Validate RESTful APIs using Postman, including auth flows, error handling, and integration behaviors.
• Participate in L3 certification process testing with payment partners and contribute to certification documentation.
• Collaborate closely with QA, Product, and Engineering to define clear test plans, acceptance criteria, and edge cases.
• Use browser dev tools to inspect request/response payloads; investigate logs and backend activity.

Skills

QA testing

Payments domain

API testing

Agile/Scrum

Documentation

Tools

Postman

Swagger/OpenAPI

Playwright

Appium

MongoDB

DynamoDB

AWS

Job description

Qu in Arlington, TX is seeking a hybrid QA specialist focused on payments, API testing, and EMV hardware integrations across our POS platform.

You will design manual and automated tests for payment APIs, UI flows, and EMV interactions, collaborate with cross-functional teams, and contribute to CI/CD and certification processes.

Strong communication and detail orientation are essential as you validate card-present and card-not-present workflows in web-based environments.