Senior Java Developer (10/978)

Infolet; Kraków; On-site; PLN 220,000 - 262,000; Full time

Benefits offered by this job

Relocation package

Extended medical care with Kraków and

Multisport Benefit card

Life insurance

Job summary

Infolet in Kraków is seeking a Senior Java Developer to join a team building modern, distributed applications for the banking sector. You will work on backend services and some full-stack tasks, leveraging Java, Spring Boot, and cloud-native tech.

The role emphasizes designing and scaling microservices, REST/gRPC interfaces, and Kubernetes deployments. Polish and English fluency are required for collaboration across teams.

Qualifications

• Mandatory Java development experience in commercial projects.
• Strong Spring Boot and microservices background.
• Experience with Kubernetes and REST.

Responsibilities

• Design, develop and maintain Java-based applications and microservices.
• Build and integrate REST and gRPC services.
• Work with Spring Boot and modern Java technologies.
• Develop and maintain applications running in Kubernetes.
• Work with relational databases, preferably Oracle.
• Participate in automated testing using Cucumber.
• Collaborate with other developers and technical teams to deliver reliable and scalable solutions.
• Contribute to technical design and continuous improvement of the application architecture.
• Troubleshoot and resolve technical issues in a distributed environment.

Skills

Fluent English

Polish

Tools

Java

Spring Boot

REST APIs

Kubernetes

SQL

Maven

Cucumber

Oracle

gRPC

Job description

SUMMARY

160 - 190 PLN/h (B2B)

19 000 – 23 000 PLN brutto (UOP)

Kraków (6 days onsite monthly)

Senior

Project

We are looking for an experienced Senior Java Developer to join a team working on modern, distributed applications within the banking and financial services sector.

You will be involved in developing and maintaining scalable microservices-based solutions, working closely with other developers and technical teams. The role combines backend development with elements of full-stack work and requires strong experience with Java, Spring Boot and modern cloud-native technologies.

You will

• Design, develop and maintain Java-based applications and microservices
• Build and integrate REST and gRPC services
• Work with Spring Boot and modern Java technologies
• Develop and maintain applications running in Kubernetes
• Work with relational databases, preferably Oracle
• Participate in automated testing using Cucumber
• Collaborate with other developers and technical teams to deliver reliable and scalable solutions
• Contribute to technical design and continuous improvement of the application architecture
• Troubleshoot and resolve technical issues in a distributed environment

Must have

• 10+ years of professional software development experience
• Strong commercial experience with Java
• Very good knowledge of Spring Boot
• Experience with microservices architecture
• Experience developing REST APIs
• Experience with Kubernetes
• Good knowledge of SQL
• Experience with Maven
• Previous experience in banking or financial services
• Experience with automated testing, preferably Cucumber
• Good understanding of distributed systems and modern software development practices
• Fluent English and Polish

Nice to have

• Experience with Oracle
• Experience with gRPC
• Experience working in large-scale enterprise environments

Our offer

• Relocation package (4500 PLN total value), paid in three installments (1500 PLN per month) in case your permanent presence in the office is mandatory, and you need to relocate from another city
• Benefits: Extended medical care (over 2000 medical facilities in Poland, 80 in Kraków) for you and your family; Multisport Benefit card; life insurance