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Sr Test Engineer
Cognizant
Source: Headcount Labs · original listing ↗
Job data: Headcount Labs, ODbL 1.0. Job descriptions belong to their employers.
Source date: 11/10/2026
About this role
Senior Test Engineer is responsible for testing and validating EV charging systems, ensuring software, hardware, and communication interfaces perform reliably across component, integration, and end-to-end charging scenarios. Collaborates with cross-functional teams to identify defects, verify fixes, support release readiness, improve test processes to maintain high product quality and reliability. LOCATION: Test laboratory in Zabierzów, near Kraków. Remote work is possible only to a very limited extent (1–2 days per month). Key responsibilities + Design and execute test plans, test cases, and validation activities based on product requirements and release objectives. + Perform functional, integration, system, and regression testing of EV charging systems, including software updates, communication protocols, and end-to-end charging scenarios. + Identify, document, and track defects, working closely with engineering teams to verify fixes and ensure product quality. + Support software releases by providing test results, assessing quality risks, and assisting with the investigation and reproduction of customer-reported issues. + Contribute to continuous improvement of testing processes and mentor junior team members on quality best practices. Required qualifications + At least 4–5 years of professional experience in software testing; experience in embedded systems or related technical domains is considered a strong advantage + Strong hands-on background in manual testing, including designing and executing test cases, exploratory testing, and regression and system-level testing. + Proven experience in identifying, analyzing, and reporting defects, including isolating root causes and providing clear, reproducible bug reports. + Ability to work effectively with limited or incomplete documentation, e.g. deriving test scenarios from specifications, standards, existing system behavior, and discussions with engineers. + Solid understanding of software testing methodologies, terminology, and practices used throughout the software development lifecycle (SDLC). + Technical degree in Computer Science, Software Engineering, Electronics, or a related field. + Experience working with defect tracking and test management tools such as Jira or Azure DevOps. + Good command of English, both written and spoken. Additional qualifications (nice to have) + SEP Electrical Qualification Certificate (Operation / Exploitation) for working with electrical equipment. + Category B driving license. + Experience working with or testing EVs and/or DC chargers for EVs. + Familiarity with technologies and standards used in the EV charging industry, such as OCPP, CCS, CHAdeMO, and general industry terminology. + Basic knowledge of Python or another scripting language. + Basic knowledge of Robot Framework. + Experience mentoring or supporting less experienced testers. Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.