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August 8, 2026

Java Developer

Junior • Hybrid

Krakow, MA, Poland

Join the IDS Systems team as a Java Developer. In this role, you will design, develop, and maintain scalable business-critical applications that support key operational and client-facing functions. You will collaborate with product owners, architects, and engineers to build reliable, high-performing distributed systems.

This role requires strong technical problem-solving skills, a commitment to engineering quality, and the ability to contribute to architecture discussions and technical decision-making. It is well suited for an engineer who enjoys building robust backend systems, improving platform reliability, and contributing to modern software development practices in a highly collaborative environment.

Responsibilities

  • Design, develop, and maintain scalable Java-based applications and services.
  • Build and enhance distributed systems and microservice-based solutions.
  • Write clean, maintainable, and well-tested code following engineering best practices.
  • Develop automated tests and support CI/CD processes.
  • Participate in code reviews and drive continuous improvement in software quality.
  • Collaborate with engineers, architects, and business stakeholders to deliver technical solutions.
  • Contribute to architecture and design discussions.
  • Troubleshoot and resolve issues related to performance, scalability, reliability, and security.
  • Support deployment automation and development workflow improvements.
  • Monitor and resolve production issues using logs, metrics, and monitoring tools.

What we're looking for

  • 1+ years of Java experience, Spring Framework, and Spring Boot.
  • Solid understanding of software engineering principles, OOP, and design patterns.
  • Experience with SQL and relational databases.
  • Experience working with distributed systems and service-oriented architectures.
  • Familiarity with automated testing frameworks and CI/CD practices.
  • Strong analytical and problem-solving skills.

What we offer

  • 1 Culture Celebration Day and 1 Community Service Day in addition to paid standard vacation allowance.
  • Private medical care.
  • Life insurance.
  • Employee Assistance Program offering independent and confidential counselling services for you and your family, including support for family, marriage and relationships, finances, and legal issues.
  • Professional trainings and qualification support.
  • Wellbeing Program.
  • Online Social Fund benefit platform.
  • Social, sport, and integration events.
  • Onboarding Program for new hires.

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Warsaw, Poland

122 - 138 PLN

🏢 Summary: The role involves designing, developing, and maintaining scalable backend applications in a microservices architecture for retail banking systems. You will build RESTful services, integrate internal and external systems, and ensure high code quality and performance. The position includes working in Agile teams with CI/CD processes and supporting production environments. 🗂️ Requirements: Minimum 5 years commercial experience as Java Developer, Experience with Spring (SpringBoot, SpringMVC, SpringData), Experience with Hibernate, Knowledge of SQL and relational databases, Experience with PostgreSQL or Oracle, Experience designing and implementing RESTful APIs, Experience with Swagger, Knowledge of Maven, Knowledge of JPA, Ability to write unit and integration tests, Experience with Git version control, Ability to optimize SQL queries 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringData, Hibernate, SQL, PostgreSQL, Oracle, REST, Swagger, Maven, JPA, JUnit, Mockito, Git, CICD, Microservices, Agile, DevOps, CleanCode 🏢 Description: Razem z naszym klientem z branży bankowej , poszukujemy osoby na stanowisko Java Developer. Projekt realizowany jest w Wydziale Kanałów Cyfrowych, który odpowiada za rozwój i utrzymanie systemów informatycznych wspierających bankowość detaliczną. Głównym celem jest projektowanie, wdrażanie oraz utrzymanie aplikacji i usług wspierających kluczowe procesy biznesowe organizacji. 💡 TWOJA ROLA: Projektowanie i rozwój aplikacji w architekturze mikroserwisowej z wykorzystaniem Java i Spring Boot. Tworzenie skalowalnych oraz wysokowydajnych rozwiązań backendowych. Tworzenie RESTful API oraz integracja usług wewnętrznych i zewnętrznych. Implementacja komunikacji synchronicznej i asynchronicznej między systemami. Rozwój aplikacji z wykorzystaniem Java, Spring Framework, Hibernate oraz relacyjnych baz danych SQL. Projektowanie i optymalizacja warstwy dostępu do danych. Pisanie testów jednostkowych i integracyjnych przy użyciu JUnit oraz Mockito. Dbanie o jakość kodu poprzez code review i stosowanie zasad Clean Code. Udział w analizie wymagań biznesowych oraz projektowaniu rozwiązań technicznych. Współpraca z analitykami, testerami i zespołami DevOps w środowisku Agile. Tworzenie i utrzymanie procesów CI/CD oraz wsparcie wdrożeń aplikacji. Monitorowanie działania systemów i rozwiązywanie problemów w środowiskach produkcyjnych. 🔍 CZEGO OCZEKUJEMY OD CIEBIE? Minimum 5-letnie doświadczenie komercyjne na stanowisku Java Developera. Doświadczenie w pracy z frameworkami Spring (Spring Boot, Spring MVC, Spring Data) oraz Hibernate . Znajomość SQL i doświadczenie w pracy z relacyjnymi bazami danych, takimi jak PostgreSQL, Oracle . Znajomość projektowania i implementacji RESTful API , w tym obsługa narzędzi takich jak Swagger . Znajomość języka angielskiego na poziomie pozwalającym na pracę z dokumentacją. Umiejętność pracy z Maven do zarządzania zależnościami i budowania projektów. Znajomość wzorców projektowych i dobrych praktyk programistycznych. Umiejętność optymalizacji zapytań SQL oraz znajomość JPA . Umiejętność pisania testów jednostkowych i integracyjnych. Znajomość systemów kontroli wersji, takich jak GIT. ✨ OFERUJEMY 🤖 Nowoczesny proces rekrutacji z AI Rekruterem (AIR) - podczas aplikacji możesz odbyć rozmowę z wirtualnym rekruterem 24/7, bez czekania na telefon, z natychmiastowym feedbackiem i możliwością powtórzenia rozmowy (liczy się ostatnia wersja). Finalną decyzję zawsze podejmuje Rekruter Connectis. Uczestnictwo w spotkaniach integracyjnych oraz meetupach technologicznych, umożliwiających dzielenie się wiedzą i doświadczeniem. Wsparcie dedykowanej osoby kontaktowej z Connectis, dostępnej w celu pomocy w sprawach związanych z projektem. Stabilne i długoterminowe zatrudnienie w firmie o ugruntowanej pozycji na rynku. Możliwość rozwoju w nowoczesnym, dynamicznym środowisku IT. 5000 PLN za polecenie znajomych do naszych projektów. Szybki, zdalny proces rekrutacyjny. Pracę 100% zdalną. Dziękujemy za wszystkie zgłoszenia. Informujemy, że skontaktujemy się wyłącznie z wybranymi osobami. 12906/JR

Technology

DCV Technologies

Senior Java Developer | Hybrid Krakow

Senior

Hybrid

Krakow, Poland

🏢 Summary: B2B Java Developer role focused on designing and optimizing scalable architecture for Java-based applications in a hybrid model (3 days in Krakow). The position involves working in an Agile environment on long-term projects, with responsibility for system scalability, integration, and performance testing. This role targets experienced professionals capable of managing complex Java and microservices architectures. 🗂️ Requirements: 8–10 years of experience in Java development, Strong knowledge of advanced Java concepts, Experience with Java API management, Experience in microservices architecture, Experience with database technologies, Experience designing scalable system architectures, Ability to perform system performance and validation testing, Experience working in Agile environment 📃 Skills: Java, Microservices, API, Databases, Agile 🏢 Description: We are looking for a Java Developer on behalf of our client, a well-known and fast-growing technology company offering a stable, long-term project in a modern environment. 📍 Work mode: Hybrid — 3 days from Krakow 📄 Contract: B2B Role Description Agile Way of Working Advanced Java Concepts Java API Management & Microservices Database Technology Experience (Years): 8–10 Responsibilities: Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the companys architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. Responsibility of Expectations from the Role Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the companys architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. ✅ Benefits: Work with modern technologies and international teams Long-term and stable cooperation Professional growth opportunities