Senior Java Developer

Project/Client:Fintech Location:Lithuania, hybrid model (3 days in the office) Start Date:ASAP Duration:12 months Language:English

Role Overview:

We are looking for a Senior Java Developerto join a fintechproject focused on scalable backend systems, data integration, and event-driven architecture. The role involves developing Java/Spring Bootmicroservices and working with data streaming and/or Data Warehousesolutions.

Key Responsibilities:

• Design, develop, and maintain backend services using Javaand Spring Boot
• Build and support microservicesand event-drivensolutions
• Work with messaging and data streaming tools such as Kafka,RabbitMQ, or similar technologies
• Contribute to data integration,CDC,ETL/ELT, and/or DWH-related initiatives
• Work with relational databases such as PostgreSQL,MS SQL Server, or similar
• Collaborate with engineering, data,DevOps, and business teams

Must-Have Requirements:

• Strong hands-on experience with Javaand Spring Boot
• Proven experience with microservices architecture
• Hands-on experience with Kafka,RabbitMQ, or similar messaging/streaming technologies
• Experience with data streaming and/or Data Warehouse/DWHprojects
• Good knowledge of relational databases (PostgreSQL,MS SQL Server, or similar)
• Fluent English

Nice to Have:

• Previous experience in fintech,banking, or financial systems

What we offer

• Model: B2B contract with Bonapolia - one contract, one monthly invoice
• Rate: negotiated per candidate seniority and client budget
• Payment: monthly invoice, paid on the same schedule the client pays us (usually 30 days)
• Contract written under your country's law
• We handle the client-side paperwork: MSA, NDA, invoicing

🏢 About Bonapolia Bonapolia is a family-owned IT staff augmentation team based in Lisbon. We build engineering teams for product companies and IT consultancies across Europe and the US. More at http://bonapolia.com 📩 Ready to Join? We look forward to receiving your application and welcoming you to our team!