Senior Data Engineer — Real-Time AdTech Data Pipelines

MWDN; Lisboa; On-site; EUR 70,000 - 90,000; Full time

Benefits offered by this job

PTO 29 days

10 paid sick days

Independent contractor support

Free English classes

HR support

Job summary

MWDN is seeking a Senior Data Engineer to join our engineering team and help shape the future of programmatic advertising. You will architect and build high‑performance systems that process millions of ad transactions in real time while leveraging cutting‑edge AI technologies to optimize outcomes for our partners.

This role sits at the intersection of ad‑tech and AI, working with massive‑scale systems and sub‑millisecond latency requirements.

Qualifications

• 5+ years of professional data engineering experience.
• 2+ years in programmatic advertising or ad-tech data.
• Strong Python and SQL proficiency.
• Experience with streaming platforms (Kafka, Kinesis, Pub/Sub).
• Hands-on with data warehouses (BigQuery, Snowflake, Redshift, ClickHouse).
• Experience with batch processing (Spark, dbt, Airflow).
• Understanding of ad-tech data structures: bid requests, impressions, OpenRTB schemas, log-level data.
• Experience with AWS and GCP and infrastructure-as-code.

Responsibilities

• Design and build scalable data pipelines for bid stream, impression, and revenue data.
• Ingest and normalize data from multiple SSPs, DSPs, GAM, and third-party APIs.
• Build real-time and batch processing systems for auction analytics and bid landscape modeling.
• Develop ETL/ELT workflows to transform raw programmatic data into analytics datasets.
• Create data models for yield optimization and demand partner performance.
• Build and maintain data warehouses and lakes optimized for ad-tech query patterns.
• Implement data quality monitoring, validation, and anomaly detection for programmatic data streams.
• Support BI and analytics teams with clean, documented, and performant data infrastructure.
• Ensure data privacy compliance (GDPR, CCPA) in data collection, storage, and processing.

Skills

Data engineering

Ad-tech data

Python

SQL

Kafka

Kinesis

Pub/Sub

BigQuery

Snowflake

Redshift

ClickHouse

Spark

dbt

Airflow

AWS

GCP

IaC

Job description

MWDN is seeking a Senior Data Engineer to join our engineering team and help shape the future of programmatic advertising. You will architect and build high‑performance systems that process millions of ad transactions in real time while leveraging cutting‑edge AI technologies to optimize outcomes for our partners.

This role sits at the intersection of ad‑tech and AI, working with massive‑scale systems and sub‑millisecond latency requirements.