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Sioux Technologies • Delft, South Holland, Netherlands
Salary: 6000 per year
Role & seniority: Test Designer (senior level); 6+ years in software testing and test automation in technical environments.
Stack/tools: ISTQB Advanced; languages: Python, C#, or C++; test strategies, BDD/TDD, Gherkin; real-time systems, UML, design patterns; test automation architecture; experience with test environments/infrastructure; Agile workflows.
Define and lead testing strategy, test levels, quality criteria, and acceptance conditions.
Design/manage test environments and infrastructure; define and steer test automation architecture.
Apply TDD/BDD with Gherkin; support multidisciplinary teams (electronics, mechanics) with test expertise; optimize testing within Agile processes.
Bachelor’s or Master’s in CS, EE, or related field.
ISTQB Advanced certification.
Proficiency in Python, C#, or C++; experience with BDD/TDD and Gherkin.
Knowledge of real-time systems, UML, design patterns; experience in multidisciplinary teams.
Experience connecting software controls to hardware; additional programming languages; experience in high-tech domains (semiconductors, analytical/medical tech).
Location & work type: Delft office and client sites; flexible 32-40 hour week with remote work options; hybrid/work-from-home possible. 28 holidays (+12 optional); emphasis on work-life balance.
As a Test Designer, you design and lead the testing approach for high-tech software products.
As a Test Designer, you define and lead the testing strategy for high-tech software products. You establish test strategies, develop automated test environments, and safeguard software quality within multidisciplinary teams. You work on challenging projects for customers in sectors such as semiconductors, analytical systems, and medical technology.
What excites you as a Test Designer?
From our office in Delft and at our clients' premises you work on challenging projects that take technology to the next level. You are an expert who designs, and tests, but also likes to think along, connect, and contribute to team results.
Identifying test levels, quality criteria, and acceptance conditions Designing and managing test environments and the associated infrastructure Defining the test automation architecture and steering its development Applying TDD, BDD, and Gherkin to ensure effective test coverage Working in technical environments were software controls hardware Supporting multidisciplinary development teams with test expertise Optimizing test processes within Agile workflows
Sounds good so far? We'd love to tell you more…
This is what you bring to the table
A Bachelor’s or master’s degree in computer science, Electrical Engineering, or a related field ISTQB Advanced certification At least 6 years of experience in software testing and test automation in a technical environment
Proficiency in at least one of the following languages: Python, C#, or C++ Experience with test strategies, BDD/TDD, and the Gherkin language Knowledge of real-time systems, UML, design patterns, and development methodologies Experience working in multidisciplinary teams involving electronics and mechanics
This is what you can expect in return from Sioux
Flexible 32-40 hour working week, with room to work from home. A healthy work-life balance is very important to us. We have 28 holidays with an option to acquire an additional 12 holidays. You will work with passionate colleagues who share your drive for technology and business success. By combining our expertise in software, electronics, mechanics, mechatronics, mathematics and assembly, we make the impossible possible for our customers and get to work on challenging high-tech projects. You get a lot of freedom and responsibility; after all, you know exactly what you are doing. Personal coaching and a training budget of €6000 per year, so that you can continue to develop yourself. We also find it important to have fun together. We organize a lot for our employees, from events together with your partner and family, sporting activities with colleagues, innovative knowledge sessions to tasty lunches and after work drinks. You will be working at a prime location at the Defltechpark knowledge hub, just a stone's throw away from TU Delft.
High Tech & High Fun
We can tell you all about the typical Sioux culture and the high-tech challenging projects. About how you can develop yourself, like nowhere else. But we’d rather have you hear it from our own employees.
Go to testimonials >
If you want to know more about our challenging projects, please click here.
This position requires access to controlled technology, as defined in the US Export Administration Regulations (15 C.F.R.
730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require Sioux to proceed with candidates who are immediately eligible to access controlled technology. Show more Show less