Our client is a fast-growing deep-tech company founded in 2019 and recognized by CB Insights as one of the 100 most promising AI companies globally. They are the largest quantum software company in the EU, with 250+ employees worldwide and growing, delivering advanced solutions trusted by leading general enterprises across several critical industries, including finance, energy, manufacturing, telecom, and industrial sectors.
Required Qualifications:
Bachelors or master's degree in computer science, software engineering, or a related field
4+ years of professional experience in data engineering, including ownership of production data platforms or pipelines
Expert programming skills in Python and strong command of SQL
Expertise in data modeling, ETL development, and database management, with both SQL and NoSQL databases
Hands-on experience with lakehouse architectures and columnar / open table formats (e.g., Parquet, Apache Iceberg, Delta Lake)
Experience with distributed data processing frameworks such as Spark, and with workflow orchestrators such as Airflow or Argo Workflows




Strong experience with cloud data platforms (Azure, AWS, or GCP), including object storage, containers, and Kubernetes
Solid grounding in data governance: catalogs, metadata, lineage, access control, and dataset versioning
Comfortable with Git-based workflows, CI/CD, and infrastructure-as-code working models
Excellent problem-solving, communication, and collaboration skills; able to lead technical discussions with clients and stakeholders in English
Nice to have:
Experience with scientific or geospatial data formats and tooling (e.g., Zarr, NetCDF, GRIB2, xarray, H3 spatial indexing)
Experience preparing and serving data for LLM, RAG, or agent-based applications
Previous experience in consulting or client-facing delivery teams
Perks and Benefits:
Indefinite contract.
Signing bonus.
They offer work visa sponsorship (If applicable) and relocation package (if applicable).
Private health insurance.

📌 Senior Data Engineer (San Sebastián)
🏢 Sabia Personal
📍 San Sebastián