QA Engineer (Payments Squad)

Qubeyond; Arlington (VA); Hybrid; USD 80,000 - 100,000; Full time

Job summary

A leading software solutions provider is looking for a QA professional to support payment system testing, ensuring a fast and reliable payment experience. The ideal candidate will have 3-5 years of QA experience, particularly with payments, and must be comfortable testing APIs and working with EMV terminals. This hybrid role requires strong collaboration skills and familiarity with tools like Postman and JIRA.

Qualifications

• 3-5 years of QA experience focused on payments or integrations.
• Experience testing workflows for payment systems and EMV terminals.
• Hands-on experience with Postman for API testing.

Responsibilities

• Design and execute manual and automated test cases for payment APIs.
• Perform functional, regression, and device-level testing of payment workflows.
• Collaborate with QA, Product, and Engineering to define test plans.

Skills

QA experience in web or enterprise platforms

Testing payment systems

API validation using Postman

Basic backend testing using C#

Familiarity with CI/CD pipelines

Documentation and collaboration skills

Tools

Postman

MongoDB

DynamoDB

Playwright

Appium

JIRA

Job description

At Qu you’ll find a fun, dynamic, and diverse culture that celebrates team and individual success. Our people are down to earth, trail blazin’ folks who value innovation.

While mostly virtual, we collaborate closely to produce leading-edge software solutions much needed in the restaurant industry.

At Qu you will:

Support the Payments squad, which is responsible for core payment flows and integrations across our POS platform. This hybrid QA role combines strong functional testing skills with growing automation capabilities. You’ll test APIs, payment processing flows, and integrated hardware like EMV terminals, ensuring our payment experience is fast, secure, and reliable.

The ideal candidate is detail-oriented, comfortable working with backend systems and hardware, and experienced in validating payments and POS workflows in web-based environments.

Overview

• 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.
• Support test automation using Playwright, Appium, and backend verification tools.
• Assist in test data setup and backend verification using MongoDB, DynamoDB, and AWS tools.
• Document defects clearly in JIRA and contribute to test coverage during sprints and releases.
• Participate in Agile ceremonies including sprint planning, refinement, and reviews.

What we're looking for:

• 3–5 years of QA experience in web or enterprise platforms, with a focus on payments or integrations.
• Strong experience testing payment systems, including EMV terminal workflows and cloud-to-device communication.
• Hands‑on with Postman for API validation; familiarity with Swagger/OpenAPI specs.
• Familiarity with basic backend testing using C# (xUnit, Moq) or ability to read/debug service code.
• Understanding of EMV L3 certification processes and best practices.
• EMV payment terminal certification experience is a strong plus.
• Comfort working in hybrid environments involving cloud services and on‑site devices.
• Basic knowledge of MongoDB, DynamoDB, or similar databases.
• Familiarity with CI/CD pipelines and Agile/Scrum development processes.
• Strong documentation, collaboration, and bug reporting skills.

Bonus Experienc

• Automation experience with Playwright, Appium, or similar tools.
• Experience with AWS-based environments, test containers, or device farms.
• Previous QA experience in POS, payment gateway, or fintech domains.
• Familiarity with terminal simulators, payment SDKs, or mock acquirer environments.
• Experience testing offline/online fallback flows or device network behavior.