Job Description, Responsibilities & Requirements
About the Position
Senior Java Engineer | Business Banking @ING Hubs RO
Join ING Hubs Romania as a Senior Java Engineer in Business Banking, collaborating with Dutch teams on high-traffic services.
Responsibilities
- Build and maintain high-quality Java (17+) Spring Boot microservices
- Work with Kafka, Docker, OpenShift, AzureDevOps, Oracle/Cassandra, ELK stack
- Design and evolve REST APIs, domain models, validation flows, and integration contracts
- Participate in architecture discussions: data models, service boundaries, event flows, performance constraints
- Perform code reviews, enforce engineering standards, and coach less experienced team members
- Provide estimates and contribute actively to planning and refinement sessions
- Implement comprehensive testing:
- Unit tests
- Integration tests
- Functional tests
- Performance & load testing, when relevant
- Investigate, reproduce, and fix issues across all environments (test, acceptance, production)
- Improve CI/CD pipelines, deployment workflows, and overall development practices
- Produce and maintain technical documentation for deployments, configurations, and service ownership
Requirements
- Experience: 5+ years backend development experience in enterprise or distributed systems with Java, Spring Boot
- Mandatory:
- Solid knowledge of REST API design, validation, error handling, and contract evolution
- Hands-on experience with Spring testing libraries
- Proven capability to mentor and support team members
- Comfortable working with Agile methodologies and modern SDLC practices
- Nice to have: Microservices, Azure DevOps, Docker
- Languages: English (advanced)
- Education: Bachelor’s Degree or higher in Computer Science or a related field - mandatory
We Offer
- Opportunity to work in a highly collaborative environment
- Flexible way of working
- Be part of a team that influences architecture and long-term system direction
- Strong engineering culture with a clear emphasis on code quality, testing, and maintainability
About the Company
ING Hubs Romania offers 130 services in software development, data management, non-financial risk & compliance, audit, and retail operations to 24 ING units worldwide, with the help of over 2000 high-performing engineers, risk, and operations professionals. We operate from two locations: Bucharest and Cluj-Napoca.
Our tech capabilities remain the core of our business, with more than 1800 colleagues active in Data and Analytics Tech, Tech Foundation and Channels, Retail Core Banking and Architecture, and Global Products and Technology Services.
We enjoy a flexible way of working and a highly collaborative environment, where fair and constructive feedback is encouraged.
For us, impact isn't a perk. It's the driver of our work. We are guided and rewarded by a shared desire to make the world a better place, one innovative solution at a time. Our colleagues make it their job to do impactful things and they love doing it in good company. Do you?