Backend Java Developer (banking)

Location: hybrid in Warsaw, Gdynia or Gdańsk (3 days per week from office)

Rate: up to 160 pln/h on b2b

Tech stack: Java 21, Spring Boot, Postgres SQL, Messaging protocols such as JMS, MQ

Summary: This role focuses on developing and enhancing Java-based applications related to taxation, account management, and investment processing for pension and savings products, ensuring compliance with regulations.

Main Responsibilities:

• Upgrade applications to at least Java 17 and Spring Boot 3.3.x, with experience in upgrade projects.

• Design, develop, and maintain Java applications for savings and investment products.

• Build robust calculation engines for compliance with tax regulations across multiple countries.

• Develop support for complex business processes, integrating with tax authorities, and generating customer-facing reports.

• Participate in the full software development lifecycle: requirements analysis, design, coding, testing, and deployment.

• Collaborate with financial analysts to translate requirements into technical solutions.

Key Requirements:

• Strong proficiency in Java and related frameworks (Spring boot, Spring, Hibernate, etc.)

• Experience with relational databases and SQL (PostgreSQL, etc.)

• Knowledge of OpenAPI and AsyncAPI for producing and consuming data

• Familiarity with version control systems (Git) and CI/CD pipelines

• Understanding of software design patterns and object-oriented programming principles

Nice to Have:

• Familiarity with financial products and services.