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  Develop and maintain banking software, starting with credit decision projects.
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  Design and implement new features in a microservices architecture (Kotlin + Python, ~50/50).
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  Support PoC initiatives and propose innovative solutions.
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  Ensure code quality, documentation, testing and troubleshooting.
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  Collaborate with team members and business stakeholders.

Requirements

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  Degree in Computer Science or related field.
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  2–4 years of commercial experience with Java/Kotlin (Java 17+, Kotlin 1.9).
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  Strong Python (3.13) and Selenium experience.
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  Experience with Spring and Hibernate frameworks.
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  Swagger/OpenAPI knowledge.
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  Experience with multithreaded programming.
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  Tools: IntelliJ, Git, Maven/Gradle, Jira.
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  Database skills: PostgreSQL, Oracle, MongoDB, CouchDB.
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  Solid background in microservices architecture and RESTful Web Services.
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  Ability to build applications with Gradle.
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  Docker (image building).
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  ISTQB Foundation certificate or willingness to obtain.
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  Domain knowledge in finance/investments.
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  Polish: fluent working proficiency.

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  English skills for reading/writing technical documentation.
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  Knowledge of reactive programming (Spring WebFlux).

Benefits

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  Solid, competitive salary.
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  Work in multilingual, multinational and multicultural environment on international projects.
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  Comprehensive healthcare.
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  Long-term B2B contract with stable project pipeline.
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  Flexible hybrid model (3 days/week on-site in Warsaw)