Tech Stack
Job Description, Responsibilities & Requirements
About the Position
Senior Java Engineer | Business Banking @ING Hubs RO
We are seeking a Senior Java Engineer for Business Banking at ING Hubs RO in Bucharest, Romania. Join our team and contribute to the development of systems that store, update, and expose customer information across the entire bank.
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
- Tech stack/ knowledge:
- 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 flexible and collaborative environment
- Be part of a team that values high availability, low latency, strong data consistency, and secure access patterns
- Work on stable, long-lived services with meaningful complexity
- 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 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 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.
Apply now and join our team to build the solutions of tomorrow, today!