• Develop & Scale Pipelines: You design and implement robust ETL/ELT pipelines to process large, complex volumes of data (Big Data) using both code-based and visual tools.
• Semantic Data Modeling: You translate complex business processes into logical data models and help build a centralized, cross-departmental enterprise data model.
• Data Quality & Lineage: You implement automated quality checks and monitor data flows from source to end product to guarantee seamless data lineage.
• Code & Transformation: You write clean, high-performance code in PySpark and SQL to clean, aggregate, and prepare data for downstream analysis.
• Cross-Functional Collaboration: You work closely with Data Scientists, Business Analysts, and business departments to quickly translate their requirements into production-ready data structures.

• Initial practical experience in Data Engineering (as a Junior, e.g., through relevant internships/working student roles; as a Mid-Level, approx. 1–3 years of professional experience).
• Solid knowledge of Python (especially in a Big Data context with PySpark) as well as proficiency in writing complex SQL queries.
• Good understanding of modern data architectures (Data Lakehouse, distributed systems) and ideally experience with integrated all-in-one data platforms.
• Familiar with relational and non-relational databases. You enjoy bringing order to unstructured mountains of data.
• Analytical mindset, work in a structured manner, and possess a strong willingness to learn, allowing you to quickly adapt to new, complex software ecosystems.

For information :

• Start date : September
• Location : Zurich - CH
• Duration : permanent contract
• Language : fluent in English, German is a plus
  

At SII Switzerland, we stand out for our strong collaborative culture and recognized expertise in IT consulting and engineering services, supporting our clients in their digital transformation and innovation projects.

With a presence across three offices in Geneva, Lausanne, and Zurich, and a workforce of around 70 consultants, our teams contribute every day to creating a work environment that is stimulating and development-oriented, where expertise, teamwork, and initiative are valued.

For the third consecutive year, SII Switzerland has been certified Great Place To Work and ranked among the Best Workplaces in "Suisse Romande", demonstrating our strong commitment to our employees and the quality of our practices.

True to our human-centered values, we are committed to supporting continuous learning and building strong relationships with our local ecosystem and partners.

Joining SII Switzerland means taking part in a collective adventure guided by our promise " Let ’ s Tech Together, ” and helping to build a technological future that is innovative, sustainable, and responsible, at the heart of an environment that values autonomy, collaboration, and professional growth.