Senior Terminal QA and Certification Test Engineer

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 Software Applications area is responsible for the development of computer programming applications including the design, coding, testing and deployment of products and solutions to meet firm obligations. Responsibilities Introductory Summary The Senior Terminal QA & Certification Test Engineer will join a global Quality Assurance team responsible for ensuring the quality, reliability, and production readiness of payment terminal software and terminal-host integrations. The role establishes strong QA engineering practices beyond certification execution by driving structured test planning, reusable regression suites, integration testing, test coverage transparency, and disciplined release gatekeeping. Certification testing across multiple schemes, networks, and acquirers is performed on top of solid functional and regression coverage, not as a substitute for proper QA. A Day in the Life Define and execute risk-based test strategies for payment terminal software releases Develop and maintain reusable regression test suites beyond certification scripts Perform integration and end-to-end testing across terminal, host, and gateway components Execute and support scheme-based, network-based, and acquirer-specific certification testing Analyze logs, traces, and protocol-level data to troubleshoot terminal and integration issues Act as a quality gatekeeper by enforcing release readiness criteria and transparent reporting Partner with developers to improve terminal software quality, robustness, and testability Required Skills & Experience Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience 7+ years of QA/testing experience with ownership of complex releases and quality outcomes Hands-on experience testing payment terminals from major manufacturers such as Ingenico, Verifone, and PAX, with exposure to other widely deployed POS terminal platforms in the market Strong experience validating terminal software and terminal-host integrations across EMV chip, contactless/NFC, mobile wallets, and MSR payment flows Experience testing terminals across Linux, Windows, and Android operating systems and connectivity types including LAN, Wi-Fi, cellular/GSM, and Bluetooth Proven ability to design structured test plans, build reusable regression suites, and perform integration and end-to-end testing beyond certification scripts Strong API, backend, and protocol-level testing skills, including analysis of logs, traces, and request/response data Ability to act as a quality gatekeeper by enforcing entry and exit criteria, reviewing test coverage, preventing defect recurrence, and driving higher terminal software code quality in partnership with development teams Qualifications Preferred / Nice-to-Have Qualifications Experience executing and supporting multiple types of terminal certifications, including scheme-based, network-based, and acquirer-specific certifications using externally provided scripts and requirements Strong understanding of QA best practices applied to terminal or embedded software, beyond certification-driven testing Demonstrated experience building long-term regression strategies to prevent defect recurrence and improve release quality over time Experience automating terminal tests using robotic setups, hardware-in-the-loop testing, or other non-traditional automation methodologies to validate physical terminal interactions 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. With employees based in 21 countries around the world, TNS is a leading global provider of data communication and interoperability services to diverse industries, such as retail, banking, payment processing, telecommunications and the financial markets. TNS’ services extend to over 60 countries and we deliver mission critical solutions to many Fortune 500 companies. TNS employees play a vital role in the delivery of our services and we recognize them as our most valuable asset. We are proud to offer competitive salaries and benefit packages, and due to the global nature of our business we can offer opportunities to relocate to different locations, if your personal circumstances change. Please take the time to view the job openings on this website and submit an application. You are welcome to apply for multiple opportunities and our system is designed to keep you informed on your application status. What’s the next step in your career? Find out today!