Senior Java Developer

About the role

We are looking for a skilled Senior Java Developer to join a global technology team within the financial services industry. You’ll be working on backend systems supporting large-scale, data-intensive applications, contributing to the design and delivery of reliable, secure, and high-performance services.

!!! Hybrid work model – 1 day per week in our Kraków office !!!

Your responsibilities

• Design, develop, and maintain backend microservices and APIs

• Create and manage REST and GraphQL interfaces

• Build and optimize NoSQL data models (Azure Cosmos DB)

• Work with data streaming technologies such as Confluent Kafka

• Develop scalable services using Spring Boot, Spring Batch, and Spring Cloud

• Implement authentication and authorization mechanisms (OAuth 2.0, MSFT Entra ID)

• Deploy and monitor solutions within Microsoft Azure Cloud

• Collaborate with global teams to ensure delivery quality and system stability

Tech stack

• Java 8 / 11 / 17

• Spring Boot, Spring Batch, Spring Cloud

• REST, GraphQL

• Azure Cosmos NoSQL, Confluent Kafka

• OAuth 2.0, MSFT Entra ID

• Azure Cloud Services (App Services, Azure Monitor, API Management)

• (Bonus) Experience with AI/ML technologies

What we offer

• 💼 B2B contract

• 💰 Rate: up to 1,300 PLN / day

• 🏠 Hybrid work model – 1 day per week in our Kraków office

• 🌍 Opportunity to work on large-scale, enterprise-level projects

• 🚀 Exposure to modern technologies in a global financial environment

• 🤝 Collaborative, multicultural team culture

Interested? Apply now on justjoin.it and join a team where technology drives innovation in the financial world.