Big Data Engineer

Gaming Innovation Group

Migration Engineer responsible for technical execution of data migrations to CoreX platform at GiG. Collaborating with teams to ensure data integrity and successful onboarding of clients.

Posted 4/13/2026full-timeBarcelona • 🇪🇸 SpainMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

ETLGraphQLKafkaMicroservicesSQL

About the role

Key responsibilities & impact

Data Pipeline Design & Implementation: Design, develop, and maintain robust data pipelines for the extraction, transformation, and loading (ETL) of large volumes of structured and unstructured data, ensuring scalability and efficiency.
Migration Execution & Validation: Lead the execution of data migrations, including data extraction, transformation, schema mapping, validation, and cutover, ensuring data integrity and consistency.
Collaboration & Stakeholder Engagement: Work closely with product, technology, delivery, and compliance teams to gather migration requirements, align on data definitions, and ensure successful migration outcomes.
Automation & Optimization: Implement automation solutions for ETL/migration processes to improve efficiency and reduce manual intervention.
Monitoring & Troubleshooting: Monitor and troubleshoot migration pipelines, addressing issues promptly to ensure smooth operations.
Documentation & Process Improvement: Document migration processes, contribute to process improvement initiatives, and ensure adherence to best practices.
Technical Support & Incident Resolution: Provide technical support during incident resolution related to migration pipelines and data discrepancies.
Agile Participation: Actively participate in all agile scrum meetings such as daily standups, refinement sessions, and retrospectives.
Innovation & Continuous Improvement: Propose and implement new ideas to improve existing products and services, fostering a culture of innovation.
Code Review & Mentorship: Perform code reviews for other engineers, ensuring code quality and knowledge sharing within the team.
Stakeholder Communication: Effectively communicate with respective stakeholders, ensuring that all information is transmitted correctly and to the right audience.

Requirements

What you’ll need

Bachelor’s/Master’s in Computer Science, Engineering, or related field.
3+ years of experience in data engineering, ETL processes, or data migration.
Strong SQL skills and experience working with structured and unstructured datasets.
Knowledge of data governance, compliance, and data quality assurance.
Solution-oriented mindset with the ability to troubleshoot and resolve issues.
Strong experience with Big Data and streaming technologies including ClickHouse, Kafka and NiFi
Strong knowledge of Microservices, APIs, GraphQL
Preferred Skills
Experience in the iGaming industry or regulated markets.
Experience with automation of ETL/migration processes.

Benefits

Comp & perks

- Great career development opportunities
- Hybrid working model
- International Health Insurance
- Health and Wellbeing Package (350 EUR per year)
- Birthday Day Off
- Me Time - 1 day off per year

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

data pipeline designETLdata migrationSQLBig Datastreaming technologiesClickHouseKafkaNiFiMicroservices

Soft Skills

solution-oriented mindsettroubleshootingcollaborationstakeholder engagementcommunicationinnovationmentorshipprocess improvementdocumentationagile participation

Certifications

Bachelor’s in Computer ScienceMaster’s in Computer ScienceBachelor’s in EngineeringMaster’s in Engineering