Senior Backend / Data Platform Engineer – Customer Data

REQ-10119432
26/08/2026
IT Engineering
Brussels, Belgium
ING Bank

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Key Responsibilities

1. Platform Development & Architecture

Design and implement backend services supporting MADP capabilities
Contribute to an event-driven architecture (event sourcing, CQRS, messaging)
Build and evolve platform-level components (not just feature-specific code)
Ensure solutions are reusable, scalable, and aligned with platform principles

2. API & Integration Design

Design and implement robust, versioned APIs for data access and integration
Ensure backward/forward compatibility and stability of API contracts
Integrate with upstream and downstream systems (e.g. OnePAM ecosystem)

3. Data Modelling & Lifecycle Management

Contribute to domain-driven data modelling
Manage schema evolution, ensuring minimal impact on consumers
Ensure alignment with data governance and data quality rules
Understand and handle data lifecycle complexity (creation, update, deletion, versioning)

4. Platform Engineering & CI/CD

Contribute to CI/CD pipelines, branching strategies, and promotion flows
Support the separation between:
- Platform lifecycle
- Tenant/domain lifecycle
Improve automation, deployment standards, and engineering practices

5. Operability & Reliability

Ensure solutions are production-ready and observable
Contribute to:
- Monitoring & observability
- Incident resolution
- Performance optimization
Support a high availability, multi-tenant platform

6. Collaboration & Knowledge Sharing

Work closely with:
- Architects, Data Stewards, and Product Owners
- Operations and Security teams
Actively document, explain, and share knowledge
Contribute to a transparent and maintainable platform (no “black box” systems)

Required Skills & Experience

Core Technical Skills

Strong experience in backend development (Java / Spring Boot or similar)
Proven experience with event-driven systems (Kafka or equivalent)
Solid understanding of:
- Event sourcing and CQRS patterns
- Distributed systems design
Strong experience in API design and integration patterns

Data & Platform Expertise

Experience with:
- Data modelling (schema design, evolution)
- Handling data lifecycle and versioning
Familiarity with data governance and access control concepts
Experience building or contributing to platforms (not just applications)

DevOps & Engineering Practices

Knowledge of:
- CI/CD pipelines
- Git branching strategies
- Deployment and release management
Familiarity with cloud and distributed infrastructure

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Your place of work Explore the area

Questions? Just ask
Natalia Janczewska

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ING’s vision is to unlock our people’s full potential through our inclusive culture where everyone has the opportunity to develop and have impact for our customers and society. To achieve this vision, our policies support diversity, equity, and inclusion. As an equal opportunity employer, we do not tolerate discrimination of any kind with regard to age, gender, gender identity, cultural background, experience, religion, race, ethnicity, disability, family responsibilities, sexual orientation, social origin, or any other status protected by applicable law. If you require any assistance or if we can accommodate you in any way when participating in our application and/or interview process, please email the recruiting contact listed for the relevant position. We will be happy to work with you to ensure a fair and accessible process. Read more about our commitment to diversity, inclusion and belonging here.