Junior Data Engineer for BI & Cloud Analytics

Aubay Spain; Barcelona; On-site; EUR 30,000 - 42,000; Full time

Job summary

Aubay Spain is seeking a Junior Data Engineer in Barcelona to join a growing digital services team. You will build and optimize data pipelines, implement AWS-based data solutions, and craft data models for analytics and reporting.

The role emphasizes collaboration with developers, architects, and business users, using GitHub/GitLab for deployments and promoting data quality and governance across projects. Advanced English is required for international projects.

Qualifications

• Develop and maintain data integration and transformation processes using Python.
• Design and optimize queries and data structures in SQL and PostgreSQL.
• Implement and support data solutions on AWS and serverless Lambda.
• Collaborate with teams to ensure data quality and governance.
• Familiarity with data lakes, BI tools, and cloud data platforms.

Responsibilities

• Develop and maintain data integration and transformation pipelines in Python.
• Design optimized SQL queries and data models for reporting.
• Implement data solutions on AWS using S3, DynamoDB, and Lambda.
• Build and maintain dashboards and BI reports with MicroStrategy.
• Collaborate with architecture, DevOps, and business teams on data quality.
• Participate in deployments, monitoring, and automation via GitHub/GitLab.
• Document technical designs and best practices for data projects.
• Contribute to Data Lake design, ELT processes, and governance initiatives.

Skills

Python

SQL

Data modeling

Advanced English

AWS

dbt

Snowflake

MicroStrategy

GitHub

GitLab

Serverless

Docker

AI (Claude)

VS Code

Tools

AWS Lambda

S3

DynamoDB

Prometheus

dbt

Snowflake

Job description

Aubay Spain is seeking a Junior Data Engineer in Barcelona to join a growing digital services team. You will build and optimize data pipelines, implement AWS-based data solutions, and craft data models for analytics and reporting.

The role emphasizes collaboration with developers, architects, and business users, using GitHub/GitLab for deployments and promoting data quality and governance across projects. Advanced English is required for international projects.