Full Stack Developer (Java, Spring Boot, Angular)

Datagroup AG; Kraków; On-site; PLN 50,000 - 80,000; Full time

Benefits offered by this job

Flexible working hours

Remote work options

Open corporate culture

Individual training opportunities

Social benefits

Job summary

DATAGROUP AG in Kraków is looking for a Full Stack Developer to support technology refresh and application modernization projects. The role involves Java and Angular development, focusing on migrating legacy systems to modern solutions.

Candidates should have a strong background in Java development, Spring Boot, and good skills in Angular. The position offers remote work options and a comprehensive benefits package, emphasizing professional growth in a collaborative and flexible environment.

Qualifications

• Solid experience in Java development and object-oriented programming.
• Strong practical experience with Java and Spring Boot, especially in backend application development.
• Good experience with Angular for frontend development.

Responsibilities

• Design and implement robust Java-based frontend components using Angular.
• Contribute to the migration from Java Struts to Java Spring Boot.
• Support the modernisation of the frontend with new application screens in Angular.

Skills

Java development

Angular

Spring Boot

RESTful services

SQL

Oracle database

PostgreSQL

Git

English communication

German communication

Tools

Google Cloud Platform

IBM Cloud Pack for Data

Airflow

Job description

Job description

DATAGROUP Polska Sp. z o.o. is looking for a skilled Full Stack Developer to support our ongoing technology refresh and application modernisation initiatives. This is a mid-level position offering remote flexibility and the opportunity to work on forward-looking IT projects that involve modernising legacy systems and migrating to modern frontend, backend and open-source database technologies.

• Design and implement robust, scalable, and efficient Java-based frontend components using Angular as well as backend services using Java Spring Boot.
• Contribute to the migration of an existing legacy application from Java Struts to Java Spring Boot.
• Support the modernisation of the frontend by implementing new application screens and user interfaces in Angular.
• Analyse the existing Java Struts application and understand how data is currently retrieved from the Oracle database.
• Map existing Oracle-based data access logic to the new PostgreSQL database structure and ensure that the required information can be retrieved correctly in the new Spring Boot application.
• Collaborate with cross-functional teams on application modernisation and technology refresh efforts.
• Ensure code quality, performance, and maintainability throughout the development lifecycle.

This project is carried out by a joint team from DATAGROUP Business Solutions GmbH and DATAGROUP Polska Sp.z o.o. Both entities share responsibility for data protection. Applicants can exercise their data protection rights with either of the involved entities.

Your profile

We’re seeking someone with a strong technical foundation and a proactive mindset. You should have:

• Solid experience in Java development and object-oriented programming.
• Strong practical experience with Java and Spring Boot, especially in backend application development and RESTful services.
• Good experience with Angular for frontend development.
• Experience with legacy Java technologies, ideally Java Struts, and the ability to understand and migrate existing application logic.
• Good understanding of database access patterns and SQL.
• Experience with Oracle database and ideally some exposure to PostgreSQL.
• Ability to analyse existing Oracle-based data structures and map the required information to a new PostgreSQL-based environment.
• Good understanding of RESTful APIs, Git, and modern development practices.
• Strong communication skills in English; German is a plus.

Bonus skills

You’ll be working alongside other specialists in related areas. If you have experience or interest in any of the following, it’s a big advantage:

• Google Cloud Platform (GCP) – BigQuery, Astronomer, CloudSQL
• IBM Cloud Pack for Data (CP4D) – especially for ETL and DataStage migration
• Scheduling systems like Airflow or Astronomer
• Experience in agile development environments

Offer

At DATAGROUP Polska Sp. z o.o., we value our employees and offer a comprehensive benefits package to support your professional and personal growth:

• Flexible working hours and remote work options (Poland only).
• Open and cooperative corporate culture and a trusting working atmosphere
• Flat Hierarchies and Short Decision Paths
• Individual training opportunities and interesting technical challenges
• Social benefits