Java Developer

Andersen is hiring a Java Developer for a project expanding a banking SuperApp and delivering secure, scalable integrations with external partners and third-party services. The customer is an established financial services organization providing a broad range of banking products and services to both individual and corporate clients. The organization operates through physical and digital channels, supports a diverse client base, and has been investing in digital transformation, process modernization, and flexible ways of working. The project is focused on expanding a banking SuperApp through integrations with external partners and third-party services. It aims to develop and maintain secure, scalable, and reliable integrations that extend the platform’s capabilities and provide customers with seamless access to a broader range of digital services.

Responsibilities: - Designing, developing, and maintaining backend services and APIs for integrations with external partners. - Developing reliable and scalable integration solutions using Java and Spring Boot. - Integrating third-party APIs and services, including authentication, data transformation, validation, and error handling. - Participating in the design of microservice-based integration architecture and contributing to technical decisions. - Implementing monitoring, logging, exception handling, and mechanisms for ensuring integration reliability. - Writing unit and integration tests and participating in code reviews to maintain high development standards. - Collaborating with mobile developers, QA engineers, DevOps specialists, product teams, and external partners. - Investigating and resolving integration issues, production incidents, and performance problems.

Requirements: - Commercial experience in Java development, with strong knowledge of object-oriented programming for 3+ years. - Strong experience with Spring Boot, Spring Framework, and development of RESTful APIs and backend services. - Solid understanding of microservices architecture, distributed systems, and integration patterns. - Practical experience with SQL databases such as PostgreSQL, Oracle, or MySQL, including query optimization. - Experience working with external APIs and third-party integrations, including REST, JSON, authentication, and data mapping. - Good knowledge of messaging technologies such as Kafka, RabbitMQ, or similar solutions. - Experience with Git, CI/CD pipelines, Docker, and modern development practices. - Understanding of software development best practices, clean code, design patterns, unit testing, and code review processes. - Level of English – from Intermediate+ and above.

Compensation: 1850–3350 EUR per month.