Senior Java Developer – Microservices & FinTech Innovation

b2bnetwork; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Job summary

b2bnetwork is seeking a Senior Java Developer to join our Cards Technology team in Warsaw. You will design, develop and maintain Java applications that support our financial services.

In this role you will collaborate in an agile environment, optimize performance, implement microservices with Java 8+, Spring Framework and Spring Boot, and ensure REST API quality. Experience with CI/CD tools (Bitbucket, Jenkins) and SAFe/Scrum is preferred.

Qualifications

• Minimum 5 years of Java software development experience.
• Hands-on knowledge of microservices architecture and clean code.
• Proficient with Java (8+), Spring Framework, Spring Boot and SQL.
• Strong understanding of REST API design.
• Familiar with CI/CD tools such as Bitbucket and Jenkins.
• Experience with Agile/Scrum/SAFe methodologies.

Responsibilities

• Designing, developing, and maintaining Java applications.
• Collaborating within an agile team and ART.
• Working with internal and external stakeholders.
• Troubleshooting and resolving issues in existing apps.
• Optimizing performance and ensuring code quality.
• Creating technical documentation for features.

Skills

Java

Microservices

Spring Framework

REST API design

CI/CD

Agile/Scrum/SAFe

SQL

Tools

Bitbucket

Jenkins

Job description

b2bnetwork is seeking a Senior Java Developer to join our Cards Technology team in Warsaw. You will design, develop and maintain Java applications that support our financial services.

In this role you will collaborate in an agile environment, optimize performance, implement microservices with Java 8+, Spring Framework and Spring Boot, and ensure REST API quality. Experience with CI/CD tools (Bitbucket, Jenkins) and SAFe/Scrum is preferred.