Automation Test Engineer – Data & Platform Engineering

Location:
Madrid or Barcelona, Spain

Working Model:
Hybrid – 2–3 days per week from the Madrid or Barcelona office

Contract:
Long-term

Role Overview

We are looking for a
Senior Automation Test Engineer
with strong experience in
data platform testing, Python automation, SQL, ETL/ELT, streaming and CI/CD
.

This is a hands-on engineering role focused on
quality engineering rather than test management
. You will design scalable automation frameworks, establish quality standards, validate data pipelines and proactively identify system failures before they reach production.

The adecuado candidate combines strong
Python framework development
with expertise in
data validation, data quality, cloud platforms and distributed systems
, while actively using
AI-assisted ways of working
to accelerate automation and engineering productivity.

Key Responsibilities
- Design and maintain scalable, modular and metadata-driven
test automation frameworks
.
- Build reusable frameworks for
data pipelines, APIs,



backend services and end-to-end data products
.
- Develop data validation capabilities covering:
- SQL assertions and reconciliation
- Schema validation and evolution
- Data contracts
- Lineage and freshness
- Completeness, accuracy and uniqueness
- Test
ETL/ELT and streaming pipelines
at scale.
- Validate Kafka/Kinesis event processing, delivery semantics, retries, DLQs and backpressure.
- Proactively test failure scenarios including schema drift, duplicate/missing events, late-arriving data and high-volume workloads.
- Integrate data quality tools such as
Great Expectations, Soda or equivalent
.
- Embed automated testing and quality gates into
CI/CD pipelines
using GitHub Actions, Jenkins or similar.
- Develop synthetic, masked and deterministic test data strategies.
- Perform performance, stress, concurrency and data-skew testing.
- Automate security and compliance validations, including PII/PHI exposure, access control a

📌 Quality Assurance Automation Engineer (Barcelona)
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