Etl developer

Qaracter - Beyond Your Challenge; Madrid; Presencial; EUR 45.000 - 60.000; Jornada completa

Descripción de la vacante

An international consulting firm is seeking a Data Integration Engineer to join their digital transformation projects in utilities and water management. The ideal candidate will have over 3 years of experience in data integration and engineering, strong Python and SQL skills, and familiarity with ETL processes. This role offers competitive compensation, benefits, and career development opportunities in a multicultural environment.

Servicios

Competitive compensation and full benefits

Career development and certifications

International and multicultural environment

Formación

• 3+ years of experience in data integration, data engineering, or ETL processes.
• Strong Python skills for data transformation logic.
• Experience in developing and maintaining data pipelines.

Responsabilidades

• Design, build, and maintain robust end-to-end data pipelines.
• Ensure data quality and automate workflows.
• Structure and organize data lakes and warehouses.

Conocimientos

Data integration

Python

ETL processes

SQL

Cloud data services

Herramientas

Apache Airflow

PostgreSQL

Docker

GitLab

Descripción del empleo

Are you passionate about connecting complex systems, building high-quality data pipelines, and enabling real operational impact?

At Qaracter, we are looking for a Data Integration Engineer to join strategic digital transformation projects within the utilities and water management sector—where operational technology meets modern data architectures.

This role is ideal for someone who thrives at the intersection of OT (Operational Technology) and Data Engineering, helping organizations unlock value from industrial and corporate data sources.

What You'll Do

1. Data Integration & Processing (ETL / ELT)
   • Design, build, and maintain robust end-to-end data pipelines
   • Work with ETL / ELT tools such as Apache Airflow, Apache Ni Fi, or custom Python pipelines
   • Clean, standardize, validate, and consolidate data from industrial and corporate systems
   • Automate workflows, ensure data quality, and orchestrate data ingestion processes
   • Integrate with relational databases (Postgre SQL, SQL Server, Oracle) and modern data platforms (S3, ADLS, Big Query, Snowflake)
2. OT / SCADA Knowledge (Nice to Have)
   • Familiarity with SCADA systems
   • Interpretation of tags, signals, and historical data
   • Understanding of industrial communication protocols: Modbus, OPC / OPC-UA, Ethernet / IP, DNP3, Io T protocols
   • Integration of PLC / RTU-generated data into big data or cloud platforms
   • Troubleshooting typical industrial data quality issues (lag, dropouts, noisy signals, irregular sampling)
3. Data Architecture & Modelling
   • Design operational and analytical data models
   • Structure and organize data lakes and data warehouses to enable use cases such as leakage detection, demand forecasting, energy optimization, and asset analytics
   • Work with metadata, cataloging, and data governance frameworks
4. Development & Automation
   • Develop transformation logic and connectors via Python
   • Build APIs and integration scripts
   • Use Docker and CI / CD tools (Git Lab, Jenkins, Azure Dev Ops) to streamline deployments

What We're Looking For

• 3+ years of experience working in data integration, data engineering, or ETL processes
• Strong Python skills
• Experience building and maintaining data pipelines in industrial or corporate environments
• Solid SQL knowledge and experience with relational databases
• Familiarity with cloud data services (Azure, AWS, or GCP)
• Experience collaborating with cross-functional teams (IT, Operations, OT)
• Strong problem-solving abilities and attention to detail
• Full professional proficiency in Spanish and at least B2 / C1 English

What We Offer

• Work on high-impact digital transformation projects
• Competitive compensation + full benefits
• Career development, certifications, and continuous training
• International and multicultural environment
• Long-term collaboration and clear growth path

About Qaracter

Qaracter is an international consulting firm specializing in technology, operations, financial services, and digital transformation. We work hands-on with major clients across Europe and LATAM, delivering real business impact through expertise, execution, and collaboration.

At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Plan de Igualdad and our commitment to equity.