Junior Data Engineer — Healthcare Data Pipelines & Impact

knok; Matosinhos; On-site; EUR 18,000 - 28,000; Full time

Job summary

knok in Porto is seeking a Junior Data Engineer to keep our data platform accurate, reliable and available to the teams. You will work alongside experienced data engineers to monitor pipelines and transform healthcare data into usable information.

This role offers hands-on experience with real healthcare data, improving data quality and pipelines, and opportunities to grow your data engineering skills while contributing to data-driven clinical and business decisions.

Qualifications

• Degree in Computer Science, Data Science, Information Technology, Engineering or a related field.
• Initial academic or professional experience with Python.
• Good knowledge of SQL and relational databases.
• Basic understanding of data pipelines, ETL/ELT concepts and data modelling.
• Strong analytical and problem-solving skills.
• Attention to detail and a strong focus on data quality.
• Ability to investigate problems and work through them in a structured way.
• Ability to communicate technical concepts clearly to non-technical stakeholders.
• Strong willingness to learn and develop your Data Engineering skills.
• Collaborative mindset, curiosity and sense of ownership.

Responsibilities

• Support the maintenance and continuous improvement of our data platform.
• Ensure data remains accurate, reliable and consistently up to date.
• Monitor our daily ELT processes, ensuring pipelines run successfully and complete within the expected timeframe.
• Identify and investigate data quality issues, pipeline failures and inconsistencies.
• Transform raw data from different sources into structured and usable datasets.
• Work with healthcare data, including HL7, extracting meaningful information from areas such as laboratory results, appointments and admissions.
• Support the development and maintenance of data models and transformations.
• Collaborate with Data Analysts and other teams to understand data needs and provide reliable solutions.
• Communicate technical topics clearly and practically to non-technical stakeholders.
• Contribute to documentation, testing and continuous improvement of our data processes.

Skills

Python

SQL

Data quality

ETL/ELT

Data modelling

Analytical thinking

Problem-solving

Communication

Collaboration

Education

CS/IT degree

Tools

Airflow

dbt

BigQuery

Snowflake

Redshift

GitHub

HL7

Job description

knok in Porto is seeking a Junior Data Engineer to keep our data platform accurate, reliable and available to the teams. You will work alongside experienced data engineers to monitor pipelines and transform healthcare data into usable information.

This role offers hands-on experience with real healthcare data, improving data quality and pipelines, and opportunities to grow your data engineering skills while contributing to data-driven clinical and business decisions.