An extraordinarily talented group of individuals work together every day to drive TNS' success, from both professional and personal perspectives. Come join the excellence!
OverviewThe 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' productsResponsibilitiesPosition 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.
QualificationsAdditional 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.
What We Do
Transaction Network Services (TNS) is a leading global provider of data communications and interoperability solutions. Our global network and innovative value-added services enable transactions and the exchange of information to many of the world’s leading retailers, banks, payment processors, financial institutions and telecommunication firms. Founded in 1990 in the United States, TNS has grown steadily and now provides services to customers in over 60 countries across the Americas, Europe and the Asia Pacific region, with our reach extending to many more. TNS has designed and implemented a global data network which supports a variety of widely accepted communications protocols and is designed to be scalable and accessible by multiple methods.
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