Senior Data Integration Engineer

**Czym będziesz się zajmować?** **SUMMARY** **Remote or hybrid (Kraków)** ⏱ **Project:** 3 months **YOU WILL** * Design and develop end-to-end data integration flows across enterprise systems * Build and maintain ODI 12c mappings, procedures and load plans * Develop and enhance complex PL/SQL packages, procedures and database logic * Work with large-scale Oracle database environments, including staging and warehouse layers * Design and maintain PostgreSQL schemas, indexes and PL/pgSQL functions * Implement reliable data processing mechanisms including idempotency, error handling, transaction management and retry logic * Design and maintain REST-based integrations and callbacks * Lead data migrations including source profiling, data modelling, bulk loading, deduplication, validation and cut-over * Troubleshoot complex data issues and trace data lineage across multiple systems * Maintain and evolve a large existing integration codebase while ensuring stability and backward compatibility * Collaborate with teams working with Salesforce, APIs and downstream customer-facing applications **Kogo poszukujemy?** **MUST HAVE** * **Strong commercial experience with PL/SQL,** including: * packages and procedures * MERGE operations * JSON / JSON\_TABLE * SAVEPOINTs and transaction management * autonomous transactions * structured exception handling * Strong hands-on experience with **Oracle Data Integrator 12c** * Very good knowledge of **Oracle SQL**, including analytical functions and complex data transformations * Good knowledge of **PostgreSQL**, including schemas, indexes, PL/pgSQL and JSONB * Experience designing and implementing **REST integrations** * Good understanding of data integration patterns, reliability, idempotency and error handling * Experience working with large and complex existing codebases * Ability to independently analyse data flows and troubleshoot integration issues **NICE TO HAVE** * Salesforce experience, particularly **External Objects** and **Heroku Connect** * Experience with **MuleSoft / DataWeave** * Knowledge of **Oracle REST Data Services (ORDS)** * Experience with **Heroku Postgres and Dynos** * Python, Node.js or Java experience for monitoring, automation or API development * Experience with **Oracle E-Business Suite** * Exposure to **Salesforce Data Cloud** or **BigQuery** * Experience with Flyway, Git and AI-assisted development tools **Czego wymagamy?** 5 lat doświadczenia na podobnym stanowisku Znajomości: * PL/SQL * Oracle SQL * PostgreSQL * REST Języki: * Polski * Angielski **Jakie warunki i benefity otrzymasz?** * 25.2k–30.2k PLN netto/m (B2B) * B2B - Elastyczne godziny pracy (100%) * Praca zdalna: Możliwa w całości * Pakiet medyczny, Ubezpieczenie, Pakiet sportowy * Kawa / Herbata **Kim jesteśmy?** Od 20 lat wspieramy liderów IT, dostarczając technologie, ekspertów i pełne wsparcie operacyjne - w tym legalizację pobytu i pracy międzynarodowych specjalistów IT Do naszych projektów poszukujemy specjalistów Java, JavaScript, C embedded, C++, PHP, specjalistów od mobile, testerów oprogramowania, administratorów sieci i systemów i wielu innych.