Data Engineer (Oracle)

What will you do? You will join a team responsible for onboarding and integrating new data feeds from upstream systems into internal source databases. The project covers the complete data ingestion lifecycle, including filtering, parsing, validation, transformation, and rejection handling. You will support the development and maintenance of Oracle database solutions, contribute to data quality initiatives, and help ensure reliable data delivery across the organization. We offer Hybrid work in one of our locations: Lodz, Poznan, Krakow, Warsaw, Wroclaw (2 office days per week) Working in a highly experienced and dedicated team Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.) Online training and certifications Access to e-learning platform Work From Anywhere (up to 140 days/year abroad) Social events Daily tasks: - Develop and maintain PL/SQL procedures, functions and packages - Support data ingestion, validation and transformation processes - Analyze and troubleshoot database-related issues - Optimize SQL queries and PL/SQL code - Participate in end-to-end testing activities - Collaborate with stakeholders to gather requirements and resolve issues - Monitor data quality and investigate data discrepancies - Support database design and development activities - Contribute to technical documentation Your skills At least 3 years of experience working with Oracle databases Good knowledge of PL/SQL development Experience writing procedures, functions and packages Knowledge of SQL query optimization Understanding of database design principles Experience troubleshooting database issues Ability to perform testing and validation activities Strong analytical and problem-solving skills Good communication and collaboration skills Nice to have Experience with performance tuning Experience with data integration or ETL processes Knowledge of data quality principles Experience working in Agile teams Understanding of data ingestion pipelines Must have: Oracle database, PL/SQL, SQL Nice to have: ETL