Sr Test Engineer

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.