Data engineer | senior

ABOUT THE OPPORTUNITY

We are looking for a Senior Data Engineer to develop, operate and maintain data analytics applications on a cloud-based big data platform in the energy and utilities sector. This role combines data engineering, cloud delivery, data processing, exploratory analysis and production support in a collaborative technical environment.

WHAT YOU WILL DO

• Develop end-to-end data processing and analytics features on a cloud-based big data platform.
• Participate in architecture discussions and define data flows, data processes and implementation approaches.
• Create proofs of concept, prototypes and production-ready data solutions.
• Build, test, deploy and monitor solutions across development, quality and production environments.
• Operate, debug and maintain data applications and pipelines after deployment.
• Analyze and structure raw data to support business and technical use cases.
• Build data systems, pipelines and algorithms to support analytics and data science activities.
• Support data extractions, exploratory analysis and interpretation of trends and patterns.
• Prepare data for predictive and prescriptive modeling.
• Document created features, processes and technical decisions.

WHAT WE ARE LOOKING FOR

• Up to 10 years of professional experience in data engineering, software engineering or data-oriented application development.
• Degree in Software Engineering, Computer Engineering, Computer Science or a related field.
• Strong experience with Python and SQL for data manipulation, processing and analysis.
• Experience developing, debugging, testing and maintaining applications in production or near-production environments.
• Ability to work autonomously and proactively while collaborating effectively with global teams.
• Critical analysis, problem-solving ability and commitment to delivery quality.
• Professional working proficiency in English.
• Interest in data science and continuous learning in data-driven technologies.

TECHNICAL SKILLS

• Python for data manipulation and processing.
• SQL.
• Big data platforms in cloud environments.
• AWS cloud services.
• Data pipelines, data systems and data processing workflows.
• Programming, debugging, testing and production support.
• Data extraction and exploratory data analysis.
• Predictive and prescriptive modeling data preparation.
• Agile methodologies.
• Jira and Confluence.

NICE TO HAVE

• AWS services such as S3, Lambda, Athena, EC2, Glue, CDK, CloudFormation, Step Functions, Batch or Fargate.
• Spark or PySpark.
• Git.
• Jupyter notebooks.
• Experience developing applications or working in production environments.
• Knowledge of the energy and utilities sector.
• Awareness of GDPR principles.
• Professional working proficiency in Portuguese or Spanish.

COMPENSATION TRANSPARENCY

Base salary range: EUR 20 000 - EUR 40 000 gross/year

Total compensation: up to EUR 55 000/year

The salary range is based on objective and gender-neutral criteria, including required competencies, professional experience, level of responsibility and role requirements. Final compensation will be determined according to the candidate's profile and position requirements.

WHAT WE OFFER

• Private health insurance from the first day, with no waiting periods and optional family extension.
• Confidential mental health support through dedicated professional assistance, content and live sessions.
• Continuous learning, training and certification opportunities to support long-term professional growth.
• Flexibility whenever the role and context allow it, supporting balance across different life stages.
• Childcare support measures designed to help balance personal and professional responsibilities.
• Team moments, shared milestones and leadership presence when it matters most.
• Upskilling opportunities in quality management, information security, AI governance and cybersecurity best practices.

EQUAL OPPORTUNITY

Hexa promotes equal opportunity and inclusive recruitment practices, aligned with the principles of the Portuguese Diversity Charter. We welcome different backgrounds, experiences and perspectives, and assess candidates through objective, role-related criteria.

HEXA LIFE

At Hexa, every professional is a Builder. We work with honesty, mutual support and agility, creating strong projects, practical solutions and trusted professional relationships. You will join a collaborative environment where people are encouraged to contribute, question, improve and build what comes next together.