Experienced Data Engineer - Retail Media (M/F/D)

Mediamarktsaturn; Madrid; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

10% discount on MediaMarkt website

Flexible Pay (MediaFlex)

Flexible working hours

Job summary

MediaMarktSaturn Technology is seeking an Experienced Data Engineer to join the Madrid team. You will design and operate ingestion pipelines against major marketing APIs, harmonize cross‑platform metrics, and deliver insightful dashboards for multi‑channel campaigns.

You will work with Python (Pandas, Flask, FastAPI), SQL, and modern data warehousing (BigQuery/Redshift). The role emphasizes data quality, privacy, and collaboration across Marketing, Analytics, and Engineering teams.

Qualifications

• 3+ years of professional Data Engineering experience.
• Experience with adtech/martech or e‑commerce data is preferred.
• Strong SQL and modern data warehousing (BigQuery/Redshift) skills.
• Proficient in Python with Pandas, Flask, and FastAPI.
• Excellent stakeholder communication across marketing, analytics, and engineering teams.

Responsibilities

• Design and operate ingestion pipelines against third‑party marketing APIs.
• Harmonize metrics across platforms with different attribution windows and currencies.
• Develop dashboards and reports to drive insights.
• Apply SQL‑based workflows and transformation tools (Dataform/dbt).
• Use Terraform for infra provisioning and manage CI/CD (GitHub Actions).
• Support cloud DevOps with monitoring and alerting in a Google Cloud environment.
• Ensure GDPR/TCF compliance in data handling and privacy controls.

Skills

API integration

Data ingestion

Data quality

Analytics

SQL

Python

Stakeholder comms

Tools

Dataform

dbt

Terraform

GitHub Actions

BigQuery

Redshift

Flask

FastAPI

Job description

Your Tasks

• API Integration & Data Ingestion: Proven ability to design and operate ingestion pipelines against third‑party marketing and advertising APIs (e.G. Google Ads, DV360, CM360, Meta, Amazon Ads, Criteo, The Trade Desk, GA4).
• Data Quality & Harmonization: Experience normalizing metrics across platforms with differing attribution windows, currencies, time zones, and taxonomies; building reconciliationchecks against platform-reported figures; and handling schema drift, late‑arriving data, and retroactive restatements.
• Analytics & Reporting: Solid data analysis capabilities complemented by the ability to build and deliver insightful dashboards and reports.
• Transformation & Orchestration: Practical experience with SQL‑based workflow orchestration and transformation tools like Dataform or dbt.
• Infrastructure as Code (IaC): Hands‑on expertise provisioning and managing infrastructure using Terraform.
• CI/CD & Version Control: Demonstrated experience configuring and maintaining continuous integration and deployment pipelines, preferably utilizing GitHub Actions.
• Cloud & DevOps: Cloud engineering and DevOps capabilities (with a strong preference for Google Cloud) with special focus on monitoring and alerting.
• Real‑Time & Streaming: Initial exposure to real‑time data pipeline frameworks (such as Apache Beam or Dataflow) and messaging brokers (such as Pub/Sub or Kafka).
• Privacy & Compliance: Awareness of GDPR/TCF requirements in a marketing data context — consent signals, hashed identifiers, PII minimization, and retention policies.

Your Profile

• Experience: 3+ years of professional experience in Data Engineering, ideally with exposure to adtech, martech, or e‑commerce/retail media data
• Database & Warehousing: Strong SQL skills alongside hands‑on experience with modern Data Warehouse solutions such as GCP BigQuery or AWS Redshift, including partitioning, clustering, and cost‑efficient design for high‑volume campaign and event data
• Programming: Proven software development experience using Python—including common libraries like Pandas, Flask, and FastAPI—with Java considered a strong plus
• Soft Skills: Strong self‑enablement and independent project management capabilities paired with effective stakeholder communication skills across marketing, analytics, and engineering audiences

About Us

MediaMarktSaturn is Europe’s leading consumer electronics retailer.It sees itself as a partner, daily companion and navigator for its customers in the digital world.Its over 1,000 MediaMarkt and Saturn stores are closely integrated with their online shops.MediaMarktSaturn has a total headcount of more than 60,000.MediaMarktSaturn Technology is working on making Europe’s number one consumer electronics retailer the technology leader in its sector.To this end, several hundred developers, UX designers and system architects using state‑of‑the‑art technology work hand in hand with business owners in agile teams to develop customer‑focused technology solutions for more than 6 million customers every day in 11 countries.Technology Hub located in Barcelona, is one of the service units of MediaMarktSaturn Technology to deliver adequate staffing and engineering skills for the agreed deliveries of the global deployment plan for the entire group.Within the Global Technology division, you are part of a strong cross‑functional team of software engineers, data scientists and analytics experts to drive the development of our global product data management.Within the team and in close collaboration with the business product owner, you will design and develop data and analytics solutions to enable the analysis of product data.

Diversity and equal opportunities are important to us.

Research shows that women and people from underrepresented groups are less likely to apply if they don’t meet all the criteria.

Additional Benefits

• Young environment, where not everything is written in stone, and where you are expected to contribute and co‑create the culture of the Tech Hub and international collaboration model
• You’ll have a 10% discount on the entire MediaMarkt website, so you can treat yourself at a lower price whenever you want!
• On top of your compensation package, you can request Flexible Pay “MediaFlex program” (a.E.Ticket Restaurant, Private Health Insurance with SegurCaixa Adeslas, …)
• Flexible working time and possibility to combine home office/ presential working.
• Intensive workday every Friday and during summer
• The possibility to choose between 2 offices: The first one is the MediaMarkt Iberia HQ with a very attractive menu at a price.
• You’ll eat for less than 4!
• And the second office is located at Pier01, in Barceloneta, right in the center of Barcelona.
• There is a training budget so you can continue developing the skills you need most to keep growing professionally and personally!
• xiphteb We offer language classes: English, Spanish, and German
• On your birthday, you won't work! It’s a day for you to enjoy without thinking about work
• You’ll be working with the most cutting‑edge technological stack of the moment

Job Infos

• Location: Barcelona, El Prat De Llobregat
• Media Markt Saturn Th Services Barcelona
• Department: HQ- IT
• Entrylevel: Professional Level
• Type of Employement: Full Time
• Working Hours: 40
• Persona: Job Requisition Tech Employee

Experienced Data Engineer - Retail Media (M/F/D) • Madrid, Kingdom Of Spain, ES