ETL Developer | D W H Area @ ING Bank in London

At ING, we believe in giving people the freedom to grow, explore, and build what matters to them. Our Data Warehouse stands at the heart of that mission — powering decisions that shape products, protect customers, and help millions stay a step ahead in life and business. If you’re passionate about high‐quality data engineering and want to build meaningful solutions with real impact, you’ll feel right at home here.

You’ll join a mature, fast-paced, and highly collaborative squad that plays a central role in ING's data transformation journey. The team embraces curiosity, shared ownership and continuous improvement — working together to create a strong, reliable data foundation that empowers the entire organization. Expect a supportive environment where knowledge-sharing, teamwork and smart engineering are part of the everyday flow.

As a Senior ETL Developer, you will play a key role in designing, building and optimizing the ETL flows that sustain ING's Corporate Data Warehouse — one of the most impactful data assets in the bank. You’ll work hands‐on with IBM DataStage, transforming source data into trusted, high‐quality information used across Risk, Finance, Regulatory Reporting and business‐critical analytics.

In this role, you will:

• Develop and maintain ETL flows using IBM DataStage and PL/SQL, following established frameworks, mapping specifications, and governance rules;
• Analyze source systems, understand data lineage, and translate business needs into clear transformation logic;
• Work with logical and physical data models to ensure accuracy and consistency;
• Perform unit testing, validate data pipelines, and ensure high‐quality outputs that meet business expectations;
• Conduct peer reviews and collaborate with other developers to keep standards high;
• Support System Testing and UAT phases, ensuring smooth delivery into production;
• Optimize and tune complex ETL jobs for performance and resilience;
• Contribute to deployment activities and metadata maintenance.

What you bring to the team:

• University degree in Computer Science, Engineering or a related field;
• Proven experience with large-scale Data Warehouse solutions;
• Strong understanding of Data Warehouse concepts and data modelling principles;
• Experience with Oracle Databases (SQL, performance tuning, data structures);
• Excellent communication skills for collaboration with technical and non‐technical stakeholders;
• Strong English skills (written and spoken);
• Familiarity with Agile/Scrum is considered a plus;
• Experience with IBM Information Server / DataStage or similar ETL tools is a plus.

What we offer:

• Impactful work in a fun, inclusive and highly collaborative environment;
• Modern, open office spaces built for teamwork and creative work;
• Hybrid working model with flexibility baked in;
• Monthly benefit budget you can use your way;
• Extra paid vacation days based on total work experience;
• Continuous learning opportunities through ING Learning Centre, Udemy, Bookster, trainings and certifications;
• Internal mobility across ING worldwide, including short- and long‐term international assignments;
• Opportunities to contribute to sustainability and CSR initiatives.

We’re seeing an increase in fraudulent job offers. To protect yourself, please apply only via official ING platforms. ING uses Workday as its recruitment system. Verify the sender's email — it should only come from @ing.com or @myworkday.com. Know that ING will never request payments or banking details during the recruitment process.

To work here is to be surrounded by people who are energetic, ambitious, friendly and respectful: talented specialists who take responsibility and autonomy to make great things happen. We stay curious, thrive on change, and seek new and better ways to make it happen. Active in Romania for 30 years, ING Bank pioneered and challenged the local banking industry. Technology and innovation are at the core of what we do, making our products relevant for our customers' lives and businesses.

ING Bank Romania is the only bank with an organic growth within the top 10 local banks by assets, without acquisitions of client portfolios or other banks. ING Bank Romania is a universal bank with more than 1.8 million customers from three business segments: individuals (retail), SME and Mid‐Corporate companies and Wholesale Banking.

Join us!