Data engineer in business intelligence

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

At AUBAY, we are recruiting a Junior Data Engineer (with advanced English) in Barcelona. We offer the opportunity to join a continuously growing company and take part in innovative projects that will allow you to complete your training and enhance your skills. At Aubay, we are a digital services multinational founded in 1998, currently experiencing strong growth.

• 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.
• Develop serverless functions using AWS Lambda.
• Manage data in services such as Amazon S3 and DynamoDB.
• Participate in deployments and automation using GitHub and GitLab repositories.
• Collaborate with development, architecture, and business teams to ensure data quality.
• Monitor applications and services using Prometheus.
• Prepare technical documentation and apply development best practices.
• Participate in the design, development, and maintenance of Data Lake solutions for storing and exploiting data.
• Develop and optimize ELT processes and data models using dbt (Data Build Tool).
• Manage and exploit data in Snowflake environments, ensuring the performance, quality, and governance of information.
• Create and maintain reports, dashboards, and Business Intelligence solutions with MicroStrategy.
• ADVANCED ENGLISH level - International project.
• Knowledge of Python applied to data handling and processing.
• Knowledge of AWS services, especially: ECS, DMS, API Gateway, Lambda, and S3.
• Proficiency in GitLab and/or GitHub.
• Knowledge of Artificial Intelligence, for example Claude (Agents, etc.).
• Будет плюсом: Use of Visual Studio Code (VS Code); Basic knowledge of monitoring with Prometheus; Knowledge of DynamoDB; Knowledge of SQL; Familiarity with Agile methodologies (Scrum/Kanban); Knowledge of Docker and containers; Experience or knowledge in Data Lake architectures; Knowledge of Snowflake for managing and exploiting data in the cloud; Experience with dbt (Data Build Tool) for developing data transformations and models; Knowledge of MicroStrategy for creating reports, dashboards, and Business Intelligence solutions; A 33% disability certificate will be positively valued
• We offer the opportunity to join a continuously growing company and take part in innovative projects that will allow you to complete your training and enhance your skills. We value commitment and dedication in the work carried out.