Logo momox GmbH

Senior Data Engineer - Customer Identity Resolution

Job

  • Level
    Senior
  • Job Feld
    BI, Data
  • Anstellung
    Vollzeit
  • Vertragsart
    Unbefristetes Dienstverhältnis
  • Ort
    Berlin
  • Arbeitsmodell
    Hybrid, Onsite
  • Job Zusammenfassung

    In dieser Position entwickelst du skalierbare Data-Pipelines, verbesserst die Identitätsauflösung durch präzise Algorithmen und arbeitest an der Qualität der Kundendaten über BigQuery und Cloud-Umgebungen.

    Job Technologien

    Deine Rolle im Team

    • Own the end-to-end pipeline that creates the unified customer_uuid across Books & Media and Fashion.
    • Maintain and evolve our customer identity master data with a strong focus on accuracy, reliability, and production quality.
    • Improve our probabilistic identity resolution model and make matching decisions measurable, transparent, and explainable.
    • Build scalable and cost-efficient data pipelines across BigQuery, GCS, and Cloud Run Jobs.
    • Introduce diagnostics, monitoring, and structured validation for every relevant model change.
    • Identify and resolve edge cases in customer matching logic before they become production issues.
    • Work closely with business and technical stakeholders to turn complex matching challenges into robust data solutions.

    Unsere Erwartungen an dich

    Qualifikationen

    • Strong Python skills for production-grade data engineering.
    • Strong understanding of data quality, matching logic, and precision/recall trade-offs.
    • A careful, structured, and ownership-driven way of working.
    • Strong communication skills and the ability to explain technical decisions clearly.

    Erfahrung

    • 5+ years of experience in production data engineering.
    • Strong experience with BigQuery and advanced SQL in large-scale analytical environments.
    • Solid Airflow experience and a strong understanding of reliable orchestration patterns.
    • Hands-on experience with incremental pipelines and idempotent data processing.
    • Experience with probabilistic record linkage or entity resolution in production.

    Unser Angebot

    • We follow a hybrid work model with 20 in-office days per quarter to foster important personal interaction while enabling a modern, flexible way of working.
    • The remaining days can be worked from home, and you also have the option to spend up to 6 weeks per year working from countries within EU.
    • You'll also benefit from flexible working hours to fit your individual needs.
    • We work together in a bright, open-plan office where even the few existing doors are always open.
    • Our teams are motivated and open to new ideas.
    • Bring your creativity to the table and make things happen!
    • If you need a moment of peace, you can retreat to a cozy corner of the medimops library in the break room, or recharge with a game of foosball, table tennis, or PlayStation.
    • momox is only as good as you.
    • That's why you will find room and budget for your individual professional development with language classes, internal training, conferences, (online) courses and more.
    • We love second-hand and incorporate our sustainable business idea into the office routine with simple methods like using eco-friendly supplies, double-sided printing, energy-saving modes on devices, waste separation, etc.
    • In doing so, we take responsibility and integrate sustainability into all our activities.
    • Design your ergonomic workspace just the way you like it - with height-adjustable desks and the laptop of your choice (MacBook or ThinkPad).
    • If things get a bit noisy in the office, your Bose noise-cancelling headphones ensure uninterrupted focus.
    • If needed, we can also provide you with an ergonomic chair or additional monitors for your home office.
    • Our office dogs contribute to a relaxed work atmosphere and are always happy to receive some extra cuddles.
    • During the week, you have the opportunity to take part in various sports activities.
    • Whether it's online training, massages, or stretching at your desk - there's something for everyone.
    • You can also get a discounted membership for Urban Sports Club or Wellhub.
    • As a momoxian, you can look forward to a monthly voucher for our momox Fashion online shop, as well as medimops.
    • Additionally, you benefit from numerous company discounts from our partners.
    • Having fun at work and celebrating our successes together are core to our values.
    • That's why we regularly come together at various events to connect, get to know each other better, and strengthen our team spirit.
    • Celebrate your birthday with half a day of vacation!
    • Come in later, leave earlier, or simply take an additional half day off to have your entire birthday free - provided your birthday falls on a regular working day.
    • Additionally, you get half a day off on December 24th and 31st.

    Benefits

    Gesundheit, Fitness & Fun

    Work-Life-Integration

    Mehr Netto

    Essen & Trinken

    Themen mit denen du dich im Job beschäftigst

    Job Standorte

    • Standort Berlin

      Deutschland

    Das ist dein Arbeitgeber

    momox GmbH

    momox GmbH

    momox ist Deutschlands führender Online-Kauf- und Verkaufsdienst, bei dem jeder seine Bücher, Filme, CDs, Spiele und Kleidung in Geld verwandeln kann.

    Description

  • Sprachen
    Englisch
  • Unternehmenstyp
    Etablierte Firma
  • Arbeitsmodell
    Hybrid, Onsite
  • Branche
    Handel, Internet, IT, Telekom
  • Logo momox GmbH

    Senior Data Engineer - Customer Identity Resolution

    Ort
    Berlin
    Arbeitsmodell
    Hybrid, Onsite
    Diversität
    Für alle Personen geeignet (m/w/d)

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