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Software Engineer (Java)
  • Katowice
Software Engineer (Java)
Katowice, Katowice, Silesian Voivodeship, Polska
Sopra Steria Polska Sp. z o.o.
27. 3. 2026
Informacje o stanowisku

technologies-expected :


  • Java
  • Spring Boot
  • Docker
  • Kubernetes
  • JSON
  • YAML

about-project :


  • We are looking for a Software Engineer (Java) to join Sopra Steria Polska and support the development team responsible for integrating the Simpl-Open middleware into the Language Data Space (LDS) ecosystem. In this role, you will contribute to software development, technical integration, configuration, testing, deployment support, and operational troubleshooting. You will collaborate closely with senior engineers, architects, and technical leads as part of a cross-functional engineering team delivering interfaces and runtime integrations between LDS components and Simpl-Open services.
  • Note that we can only offer cooperation to people who has EU citizenship, are located in Poland and are willing to commute to our office in Katowice, Poland.
  • Tech stack on the project:​
  • REST APIs, Keycloak, OAuth 2.0, OpenID Connect, Java, Spring Boot, JSON, YAML, OpenAPI, Docker, Kubernetes.

responsibilities :


  • Implement backend services, API integrations, and technical adapters under the guidance of senior engineers.
  • Configure and integrate identity, authentication, authorization, and connector-related services.
  • Develop and maintain integration logic for metadata exchange, catalogue interfacing, and validation flows.
  • Support vocabulary-related interoperability, mappings, and configuration tasks.
  • Prepare and execute technical tests, including integration tests, deployment verification, and regression checks.
  • Investigate incidents, defects, and integration issues in development and test environments.
  • Contribute to CI/CD activities, containerised deployments, and runtime support tasks.
  • Produce concise technical documentation, configuration notes, and implementation handover material.

requirements-expected :


  • Strong proficiency in Java and Spring Boot for backend service development.
  • Hands‑on experience with containerization and orchestration tools, specifically Docker and Kubernetes.
  • Experience with backend development and API-based integration.
  • Good command of secure application integration and service-to-service communication.
  • Experience with version control, debugging, testing, and software delivery practices.
  • Familiarity with containerized environments and deployment support activities.
  • Ability to analyze issues methodically and deliver reliable technical fixes.
  • Willingness to learn, document work clearly, and contribute in a team-oriented delivery setting
  • Experience working with REST APIs and API specification formats such as OpenAPI using JSON/YAML.
  • Knowledge of authentication and authorization technologies, including Keycloak, OAuth 2.0, and OpenID Connect.
  • Degree in Computer Science, Software Engineering, Information Systems, Telecommunications, or equivalent practical experience.
  • Professional experience in software development, systems integration, platform engineering, or backend delivery.
  • EU citizenship.
  • Fluent English: B2/C1.
  • Being open to occasional business trips abroad and visits to our office in Katowice.

offered :


  • BENEFITS (UoP): Luxmed, Medicover Sport, Worksmile, educational platforms, languages learning platform, referral bonus, copyrights, life insurance, workation
  • DEVELOPMENT OPPORTUNITIES (UoP and B2B): certifications (paid by the company), conferences, Tech Lunches, possibility to join our Communities (Project Management, Architecture, Security, Process Management, Leadership, AI and Cloud)

benefits :


  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • flexible working time
  • fruits
  • integration events
  • no dress code
  • coffee / tea
  • parking space for employees
  • leisure zone
  • employee referral program

  • Praca Katowice
  • Katowice - Oferty pracy w okolicznych lokalizacjach


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