Senior Backend Engineer (Fintech)

TL;DR

Senior Backend Engineer (Fintech): Design, develop, and maintain reliable backend applications and services using modern frameworks like Spring Boot, Java and Kotlin, for ING's Daily Banking platform with an accent on ensuring that solutions are modular, scalable, and highly available. Focus on building and running RESTful APIs end to end and automating processes from cloud-native solutions to containerisation.

Location: Hybrid working: In addition to working in the office, you can also work remotely – within operational, regulatory and legal requirements.

Company

ING Germany is part of a global organisation that is transforming banking through technology, innovation, and a culture of collaboration.

What you will do

• Design, develop, and maintain reliable backend applications and services using modern frameworks like Spring Boot, Java and Kotlin.
• Contribute substantially to architectural decisions ensuring that solutions are modular, scalable, and highly available.
• Build and run RESTful APIs end to end, from database and messaging integration to SDKs and service-discovery tools.
• Write automated tests, monitor and optimise applications using tools like Grafana and Kibana, and ensure resilience as well as high code quality.
• Set up and maintain CI/CD pipelines, automate processes and embrace modern tech – from cloud-native solutions to containerisation.
• Actively participate in agile ceremonies and drive continuous improvement.

Requirements

• Degree in economics, information systems or equivalent qualification.
• Long-standing practical experience in backend development, ideally in financial services or with large-scale platforms.
• Proven skills in Java (17 or higher, ideally 21+), Spring Boot, Oracle databases, SQL, and API management.
• Strong fundamentals in software development, OOP, design patterns, concurrency, and TDD as well as a deep understanding of microservice architectures and distributed systems.
• Experience with CI/CD pipelines and tools (Azure DevOps), test automation (JUnit, Mockito), and Git.
• Fluency in English, knowledge of German is a plus.

Nice to have

• Skills in IT risk management, secure development practices, Containerisation (OpenShift), orchestration, and Kafka as well as with monitoring tools (Grafana, Kibana); cloud technologies and agile frameworks are a bonus.

Culture & Benefits

• Hybrid working: In addition to working in the office, you can also work remotely.
• Individualized work schedule models, sabbatical, subsidization of nursing & childcare costs.
• Personal budget for continuing education and development as well as health; plus, a personal budget to set up your mobile working space.
• Company pension plan, capital-building offers, free Deutschlandticket & bicycle leasING, company restaurant.