Test Design: Develop and execute comprehensive test plans, test cases, automated test sequences, and test scripts for control systems Software Testing: Perform functional and performance testing on control system software Collaboration: Collaborate with internal and external software engineers as well as project managers Issue Analysis: Conduct root cause analysis of identified issues and work with development teams to ensure timely resolution Code Review: Participate in code reviews and provide feedback from a testing perspective Project Management: Take ownership of test projects, including time and cost planning Documentation: Provide clear and concise test reports and documentation Education: Completed Bachelor’s degree in Computer Science, Software Engineering, or a related technical field Certification: Valid ISTQB Foundation Level certification as a minimum requirement Experience: Proven track record in software testing or quality assurance, ideally with exposure to control or embedded systems Technical Skills: Hands-on experience with automated testing tools and proficiency in programming languages such as C++, C#, ASP.NET, Vue.js, Python, or JavaScript Testing Knowledge: Strong understanding of testing methodologies and processes across all phases of the software lifecycle Industry Insight: Familiarity with refrigeration systems or the HVAC industry is considered a plus Soft Skills: Excellent problem-solving abilities, attention to detail, and strong communication and teamwork skills Languages: Fluent English skills (C1/C2) and solid German proficiency (B2) for effective communication We offer: Collective Agreement Pay: Enjoy a stable income with compensation based on the IG Metall collective agreement Work-Life Balance: Benefit from a 35-hour work week and 30 days of paid vacation per year to recharge and relax JobRad Program: Stay fit and eco-friendly by commuting with a bicycle through our JobRad leasing offer Deutschlandticket: Receive a subsidized Deutschlandticket for affordable and sustainable commuting Company Cafeteria: Take advantage of our company cafeteria offering fresh and healthy meals every day Personalized Development Opportunities: Expand your professional skills and advance your career with tailored training and development programs