Senior Data Engineer: Identity Data Pipelines (Hybrid Spain)

Evolved Ideas Spain (formerly Secret Source); España; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

Hybrid working

Private health insurance

Training budget

Extra holidays

Professional development

Job summary

Evolved Ideas Spain (formerly Secret Source) is seeking a Senior Data Engineer to own the unified customer identity data across Books & Media and Fashion. You’ll join the BI & Data Engineering team and work with Data Engineers and Analysts to build reliable, scalable customer identity data powering marketing, CRM, reporting and analytics.

You will drive end-to-end pipelines, improve identity resolution, and ensure production-grade quality and observability in a remote-friendly setup across Spain.

Qualifications

• 5+ years of experience in production data engineering.
• Strong experience with BigQuery and advanced SQL in large-scale analytical environments.
• Strong Python skills for production-grade data engineering.
• 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.
• Strong understanding of data quality, matching logic, and precision/recall trade-offs.

Responsibilities

• 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 focus on accuracy and production quality.
• Improve probabilistic identity resolution model and make matching decisions measurable and explainable.
• Build scalable 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 production issues.
• Collaborate with business and technical stakeholders to turn matching challenges into robust data solutions.

Skills

BigQuery

Advanced SQL

Python

Airflow

Splink

Entity resolution

Data quality

Production data eng

Communication

English B2

Tools

Pub/Sub

GCS

Cloud Run Jobs

Job description

Evolved Ideas Spain (formerly Secret Source) is seeking a Senior Data Engineer to own the unified customer identity data across Books & Media and Fashion. You’ll join the BI & Data Engineering team and work with Data Engineers and Analysts to build reliable, scalable customer identity data powering marketing, CRM, reporting and analytics.

You will drive end-to-end pipelines, improve identity resolution, and ensure production-grade quality and observability in a remote-friendly setup across Spain.