Oracle Database Developer – Financial Markets

**ING Hubs Poland is hiring!** The expected salary for this position: 9 600 - 20 000 PLN - Engineer III 13 000 - 22 000 PLN - Engineer IV _The financial ranges specified in the announcement are adjusted and may differ from the range specified in the remuneration regulations._ Join ING Hubs Poland and build **high‑performance, mission‑critical data and trading platforms** used across global Financial Markets. **What you’ll do** * Design, build, and maintain **data workflows, ETL/ELT pipelines**, and integration processes * Develop robust **Oracle-based data solutions** powering transactional and near real-time systems * Implement **high-performance, secure, and scalable data processing pipelines** * Build **automation, monitoring, and testing frameworks** for data workflows * Collaborate with global teams in an **Agile setup**, driving continuous improvement * Own your solutions end-to-end: **design → implementation → testing → production support** **What you bring** **Core expertise** * **Strong Oracle / SQL (5+ years)** * Advanced PL/SQL development: **stored procedures, packages, functions** * Experience with **triggers, views, materialized views, and performance tuning** * Understanding of **transaction management, locking, and optimization** * Experience building **database-centric middleware / data integration layers** * **Python & shell scripting (5+ years)** for automation and data processing * Experience designing **data pipelines (ingestion, transformation, modelling, storage)** * Experience with **near real-time or transactional systems** **Engineering mindset** * Strong **problem-solving and solution design skills** * Experience with **Git and CI/CD pipelines** (Azure DevOps is a plus) * Comfortable working in **distributed, international teams** **Domain & extra points** * Experience working in **banking (5+ years), ideally Financial Markets** * Knowledge of **Exchange Listed products (Equities, Commodities)** * Familiarity with **Agile / Scrum** **What we value** * Ownership and accountability * Clear, open communication * Curiosity and continuous learning * Drive to improve systems, teams, and ways of working **Why join us** * Work on **real-time trading platforms** with global impact * Combine **deep Oracle engineering** with modern data tooling * Grow in a culture that **values craftsmanship, autonomy, and learning** The role naming convention in the global ING job architecture will be “Engineer III" or "Engineer IV".