Java Backend Developer

emagine Polska; Województwo pomorskie; Hybrid; PLN 165,000 - 207,000; Full time

Job summary

emagine Polska is hiring a Backend Java Developer to enhance Java-based applications, focusing on taxation, account management, and investment processing for pension and savings products. The role emphasizes compliance and robust software delivery.

The candidate will upgrade systems to Java 21/Spring Boot 3.3.x, design and implement services, and collaborate with financial analysts to translate requirements into scalable technical solutions across multilingual tax rules.

Qualifications

• Strong proficiency in Java and related frameworks (Spring, Hibernate, etc.).
• Experience with Java 21 and Spring Boot upgrades.
• Proficiency in relational databases and SQL (PostgreSQL).
• Familiarity with messaging protocols such as JMS, MQ, etc.
• Knowledge of OpenAPI and AsyncAPI.
• Experience with version control systems (Git) and CI/CD pipelines.
• Understanding of software design patterns and object-oriented programming principles.
• English language proficiency required.

Responsibilities

• Upgrade applications to at least Java 17/21 and Spring Boot 3.3.x upgrade projects.
• Design, develop and maintain Java applications for savings and investment products.
• Build robust calculation engines to ensure compliance with tax regulations across countries.
• Develop support for complex business processes, integrating with tax authorities and generating reports.
• Participate in full SDLC: requirements, design, coding, testing, deployment.
• Collaborate with analysts to translate requirements into technical solutions.

Skills

Java

Spring Framework

Java 21

PostgreSQL

JMS/MQ

OpenAPI/AsyncAPI

Git & CI/CD

Software design patterns

Tools

PostgreSQL

Git

CI/CD

Job description

Rate: max 150 pln/h net + VAT, B2B

Location: Hybrid (3 days per week from office Warsaw / Gdańsk)

Industry: banking

Summary

The Backend Java Developer role focuses on enhancing and developing Java-based applications, specifically managing taxation, account management, and investment processing for pension and savings products. The primary goal is to ensure compliance with regulations while delivering robust software solutions.

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 to ensure compliance with tax regulations across countries.
• Develop support for complex business processes, integrating with tax authorities, and generating customer-facing reports.
• Participate in the full software development lifecycle including 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, Hibernate, etc.)
• Experience with Java 21 and Spring Boot upgrades.
• Proficiency in relational databases and SQL (PostgreSQL).
• Familiarity with messaging protocols such as JMS, MQ, etc.
• Knowledge of OpenAPI and AsyncAPI.
• Experience with version control systems (Git) and CI/CD pipelines.
• Understanding of software design patterns and object-oriented programming principles.

Nice to Have

• Experience with cloud platforms (AWS/Azure).
• Knowledge of best practices in software development.
• Familiarity with Agile methodologies.

Other Details

Required language: English.