Oracle Database Developer – Financial Markets

ING Hubs Poland; Katowice; On-site; PLN 107,136 - 223,200; Full time

Job summary

ING Hubs Poland is looking for a Data Engineer who will be pivotal in designing, building, and maintaining data workflows and ETL/ELT pipelines for mission-critical trading platforms.

The ideal candidate has at least 5 years of experience in Oracle/SQL, with strong Python scripting skills for automation. This role is located in Katowice, and you will be part of an international team driving continuous improvement.

Qualifications

• 5+ years of experience with Oracle / SQL, specifically PL/SQL and performance tuning.
• 5+ years of Python experience for data automation and processing.
• Experience in designing data pipelines and working with transactional systems.

Responsibilities

• Design and maintain data workflows and ETL/ELT pipelines.
• Develop Oracle-based data solutions for real-time systems.
• Collaborate with global teams in an Agile environment.

Skills

Strong Oracle / SQL

Python & shell scripting

Experience with near real-time or transactional systems

Git and CI/CD pipelines

Job description

ING Hubs Poland is hiring!

Expected Salary: 9,600-20,000 PLN (Engineer III), 13,000-22,000 PLN (Engineer IV)

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