Trusteq Gmbh

Data Engineer Working Student (m/w/d)

Köln, Germany full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

YOUR TASKSYou support the development of databases and data integration processes
You contribute to the design and implementation of data models and data pipelines for modern data lakes, data warehouses, or lakehouses
You assist in documenting and structuring data platforms and related processes
You participate in the development of interactive dashboards and reports, for example in the area of performance metrics and ESG
You support the application of data analytics methods and tools within project contexts
You assist users in the utilization and maintenance of data platforms and analytics solutions

YOUR PROFILYou are currently enrolled as a student in an IT-related field, such as (Business) Informatics, Software Engineering, Data Science, Data Engineering, or a related discipline
You have solid knowledge of the programming languages Python and SQL
You have experience in data visualization and presentation using Power BI and/or Microsoft Fabric.
Initial experience with Databricks is considered an advantage
You have a basic understanding of data modeling methods and data integration processes (ETL / ELT)
You work independently and in a structured manner and demonstrate strong teamwork and communication skills
You possess excellent German and English language skills (minimum C1 level in both languages)
You are able to work on-site at least 50% of the time in our office in Cologne or Munich

YOUR BENEFITSSupportive Team Culture: Team cohesion is important to us – we support one another and foster a healthy office culture. Our event team organizes regular after-work events to encourage exchange and connection beyond the workplace.
Early Ownership & Responsibility: From day one, you will take on exciting tasks with real responsibility – whether on your project or by contributing to internal initiatives. You actively help shape our organization.
Clear Career Development Paths: You will find an environment that supports, challenges, and advances your professional growth. We offer clearly defined career paths and transparent requirements for each level.
Creative Work Environment: We give you the freedom and time to develop creative solutions and provide the best and most modern hardware (Apple or Windows) to support your work.
Flexible Working & Vacation Policy: Work remotely and adjust your working hours flexibly to fit around your studies.

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Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Mid
Technology & IT API integration Data Analysis MySQL Python SQL Mid level

Likely questions

  1. Tell us about work you have done that is close to the Data Engineer Working Student (m/w/d) role.
  2. How would you approach your first 30 days at Trusteq Gmbh?
  3. Which of API integration, Data Analysis and MySQL have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, Data Analysis and MySQL.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Data Engineer Working Student (m/w/d) role because I can bring practical experience in API integration, Data Analysis and MySQL, learn the team quickly, and contribute to the outcomes Trusteq Gmbh needs from this hire.

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