Java developer banking SuperApp

Andersen’s customer is a financial services organization that provides banking products and services to individual and corporate clients through physical and digital channels. The project expands a banking Super App with secure integrations to external partners and third-party services.

• Design, develop, and maintain backend services and APIs for integrations with external partners
• Develop reliable and scalable integration solutions using Java and Spring Boot
• Integrate third-party APIs and services, including authentication, data transformation, validation, and error handling
• Participate in designing microservice-based integration architecture and contribute to technical decisions
• Implement monitoring, logging, exception handling, and mechanisms to ensure integration reliability
• Write unit and integration tests and participate in code reviews
• Collaborate with mobile developers, QA engineers, Dev Ops specialists, product teams, and external partners
• Investigate and resolve integration issues, production incidents, and performance problems

• At least 3 years of commercial Java development experience and strong knowledge of object-oriented programming
• Strong experience with Spring Boot, Spring Framework, RESTful APIs, and backend services
• Solid understanding of microservices architecture, distributed systems, and integration patterns
• Practical experience with SQL databases, including query optimization
• Experience 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
• English at Intermediate+ level or above

• An opportunity to earn up to an additional 1,000 EUR per month, depending on expertise, through company activities; this is included in the annual bonus
• Professional, financial, and career growth opportunities
• Mentoring and onboarding systems for each new employee
• Access to the corporate training portal and its regularly updated knowledge base
• Corporate events and amenities, including parties, pizza days, Play Station, fruit, coffee, snacks, and movies
• Certification compensation, including AWS and PMP
• Referral program
• Private health insurance and sports compensation, depending on employment type