Senior Java Developer

Java Developer

Various seniority levels | Hybrid | Prague / Relocation support (EU citizens)

We are seeking skilled Java Developers to join technology teams working on high-performance, mission-critical software systems. You will participate in the design, development, and modernization of backend platforms that support complex business processes, large-scale transactions, and modern digital products.

The roles are available across multiple teams and domains – from core enterprise systems and financial platforms to modernized services and new feature development. Most positions are backend-focused, but full-stack profiles are also welcome.

Hybrid cooperation is possible (typically 2 or 3 days on-site in Prague).

What you will do

• Design, develop, and maintain Java backend applications in an agile environment
• Build and evolve REST APIs and backend services
• Work with relational databases and data models
• Implement new features, fix defects, and improve existing systems
• Write clean, testable, and maintainable code (unit & integration tests)
• Participate in code reviews, design discussions, and technical decision-making
• Collaborate with QA, infrastructure, data, and global engineering teams
• Take part in the full software lifecycle: analysis → design → development → deployment
• Contribute to continuous improvement of architecture, performance, and processes
• (Senior roles) Mentor colleagues and support technical leadership within the team
• Participate in on-call support and incident resolution where required

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Must have

• Strong knowledge of Java
• Experience with Spring / Spring Boot (Spring MVC)
• Strong knowledge of relational databases (e.g. SQL Server) and ORM
• (JPA, Hibernate, JDBC)
• Experience designing and consuming RESTful APIs
• Maven or Gradle
• Git, code reviews, and collaborative development
• Experience with JUnit and test planning
• Basic knowledge of JavaScript, HTML, JSON
• Ability to work independently, take ownership, and escalate when needed

Nice to have

• Docker, Testcontainers, Redis
• Messaging systems (Kafka, RabbitMQ, SQS)
• CI/CD pipelines, GitHub Actions
• GraphQL or JSON API
• Reporting tools (e.g. MS SQL Server Reporting Services)
• Core Java, multithreading, concurrency, performance tuning

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Tech stack (team-dependent)

• Java 17+ (some teams up to Java 21)
• Spring / Spring Boot
• SQL Server and relational databases
• CI/CD, containerization
• Modern monitoring and logging tools

What we offer

• Competitive salary with annual bonus
• Hybrid working model (2 or 3 days on-site in Prague)
• 5 weeks of vacation
• Employer pension contribution
• Professional training, certifications, and conferences
• Flexible working hours and home office
• Relocation support within the EU for EU citizens

About the environment

You will work in a large, mature engineering environment with strong emphasis on code quality, security, and performance, while also being exposed to modern development practices and tooling.