Android Terminal QA Engineer (Payments)

An extraordinarily talented group of individuals work together every day to drive TNS' success, from both professional and personal perspectives. Come join the excellence!

Overview The QA area is responsible for the testing of computer programming systems and applications including the design, coding, testing and deployment of products and solutions to meet goals of TNS' products

Responsibilities Position Summary The Android Terminal QA Engineer is responsible for validating, testing, and certifying Android‑based payment terminals, with a primary focus on PAX Android 10+ terminals. This role ensures that terminal software, payment applications, and integrations meet functional, security, performance, and certification requirements prior to release. The role requires strong hands‑on terminal testing experience, Linux and scripting expertise, and the ability to design, execute, and automate terminal‑driven payment scenarios. Deep experience with any payment terminal platform (PAX, Ingenico, Verifone, Castles, etc.) will be considered.

Key Responsibilities Terminal & Android Testing:

• Validate Android 10+ payment terminals, with primary focus on PAX Android terminals.
• Execute EMV Contact/Contactless, Magstripe, PIN, offline, fallback, reversal, timeout, and negative scenarios.
• Test terminal firmware upgrades, Android application updates, and configuration changes.

Payments, Integration & Certification

• Validate terminal integrations with payment gateways, hosts, and acquirers.
• Support Visa, Mastercard, Amex, Discover, and regional scheme certifications.
• Ensure EMV, PCI, and scheme compliance and maintain certification evidence.

Automation, Scripting & Tooling

• Develop or enhance terminal test automation frameworks.
• Automate repeatable terminal scenarios using UI, API, or simulator‑based approaches.
• Develop Linux, Python, or Bash scripts for test execution, data setup, and log analysis.
• Integrate automated tests into CI/CD pipelines (Jenkins, TeamCity).

Required Qualifications

• 5+ years of software testing experience with terminal or embedded systems exposure.
• Hands‑on experience testing Android‑based payment terminals (Android 10+ preferred).
• Strong Linux/Unix hands‑on experience.
• Strong scripting skills in Python, Bash, or Shell.
• Experience with test automation frameworks (Selenium, Appium, or custom).
• Experience with REST API testing and Agile/Scrum environments.

Preferred Qualifications

• Direct experience with PAX Android terminals (A80, A920, A77 or similar).
• Experience with Ingenico, Verifone, or other payment terminals.
• Knowledge of ISO8583 or proprietary payment protocols.
• Experience with host/acquirer simulators and certification tools.
• Exposure to performance, volume, and stability testing.

Education Bachelor’s degree in Computer Science, Engineering, or related technical field, or equivalent experience.

Qualifications Additional Preferred Skills

• Experience with AI‑assisted or GenAI‑based testing approaches
• Exposure to cloud or hybrid test environments (AWS, Azure, or equivalent)
• Experience testing embedded systems or hardware‑integrated devices
• Familiarity with terminal simulators and/or host/acquirer simulators
• Exposure to performance, volume, or stability testing
• Awareness of payment security concepts and compliance standards If you are passionate about technology, love personal growth and opportunity, come see what TNS is all about! TNS is an equal opportunity employer. TNS evaluates qualified applicants without regard to race, color, religion, gender, national origin, age, sexual orientation, gender identity or expression, protected veteran status, disability/handicap status or any other legally protected characteristic.