Data Scientist - Search Retrieval (f/m/d) — Galaxus
- Località
- Zürich
- Contratto
- full-time
- Pubblicato
- Ieri
Panoramica
Retrieval is the foundation of every search result.
As a Data Scientist on our Search team, you'll own the algorithms (keyword, vector, and beyond) that surface the right products for every customer query.
Your work has a direct, measurable impact on how customers discover products and experience our shop.
- Retrieval is the foundation of every search result.
- As a Data Scientist on our Search team, you'll own the algorithms (keyword, vector, and beyond) that surface the right products for every customer query.
- Design, build, and improve retrieval passes for our product search, including keyword-based (e.g., BM25) and vector-based (embedding) search
- Develop hybrid retrieval strategies that blend lexical and semantic signals, including candidate merging and score normalization
- mindestens 3 Jahre relevante Berufserfahrung: Search / Information Retrieval / Machine Learning
- Completed degree (university / university of applied science / higher technical college): Data Science / Computer Science / Machine Learning
Responsabilità principali
- Design, build, and improve retrieval passes for our product search, including keyword-based (e.g., BM25) and vector-based (embedding) search
- Develop hybrid retrieval strategies that blend lexical and semantic signals, including candidate merging and score normalization
- Continuously improve retrieval systems by evaluating performance and leveraging interaction data from millions of users
- Analyze search logs and user behavior to identify recall gaps, underperforming query segments, and long-tail query issues
- Bring models from prototype to production together with engineers, ensuring low latency and high availability at e-commerce scale
Requisiti principali
- mindestens 3 Jahre relevante Berufserfahrung: Search / Information Retrieval / Machine Learning
- Completed degree (university / university of applied science / higher technical college): Data Science / Computer Science / Machine Learning
- University degree in data science or a related field (MSc or PhD), as well as at least 3 years of relevant professional experience, ideally with practical experience in search or information retrieval
- Excellent Python knowledge including experience with machine learning libraries such as PyTorch, TensorFlow and scikit-learn
- Experience designing experiments and interpreting metrics for large-scale online systems (A/B testing, offline evaluation)
- Experience in handling large amounts of data, including advanced SQL knowledge and experience with database systems (e.g. BigQuery) for analyzing user interactions
- Experience in the field of MLOps, especially in the deployment and operation of machine learning models in production, e.g. with orchestration tools like Airflow or Dagster
- Solid command of English, both written and spoken; German is a plus
- Pragmatic, product-oriented mindset and good communication skills for working across disciplines
- A willingness to challenge «how things have always been done and propose more efficient, automated or effective solutions
- Values, not empty words: Cooperative, innovative, piratesque, responsible, ambitious – these five values are what we practice and preach.
- Courageous thinking: We encourage everyone to think on their feet, and love it when they come up with bold or edgy ideas.
Cosa offre l’azienda
- Using creativity and initiative to solve problems and achieve goals English (Fluent) Cosa offriamo
Processo di candidatura
- Application and contact details Carli Connelly People Attraction & Active Sourcing Specialist
Dettagli ulteriori
- Experience in handling large amounts of data, including advanced SQL knowledge and experience with database systems (e.g. BigQuery) for analyzing user interactions
- Solid command of English, both written and spoken;
- Using creativity and initiative to solve problems and achieve goals
Note e contenuto originale
- Experience in handling large amounts of data, including advanced SQL knowledge and experience with database systems (e.g.
- BigQuery) for analyzing user interactions
- German is a plus
- English (Fluent)
- Cosa offriamo
Domande frequenti su questo annuncio
Che stipendio offre Galaxus per questa posizione?
Galaxus indica CHF 73'500 - 111'500 lordi annui per questo ruolo a Zürich. Questo è lo stipendio pubblicato nell'annuncio originale (o, quando il datore non specifica una cifra, una stima realistica per ruolo e settore) — il calcolatore di questo sito lo converte nel netto reale una volta applicate imposta da frontaliere e contributi sociali.
È un ruolo a tempo pieno, e che tipo di contratto offre Galaxus?
Questo annuncio è una posizione a tempo pieno. Il tipo di contratto mostrato qui arriva direttamente dall'annuncio originale del datore di lavoro; conferma sempre orario esatto, preavviso e durata del periodo di prova con Galaxus durante il colloquio, perché questi dettagli possono variare anche all'interno della stessa categoria contrattuale.
Serve un permesso da frontaliere per un ruolo nel canton Zurigo?
I residenti UE/AELS nella zona di frontiera del paese confinante con il canton Zurigo possono richiedere il Permesso G; il datore di lavoro svizzero lo presenta all'ufficio della migrazione di quel canton dopo la firma del contratto. Regole sulla zona di frontiera e tempi di lavorazione variano per paese confinante e canton — verifica i dettagli con l'ufficio della migrazione del canton Zurigo o con HR durante il colloquio.
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