Senior Java Developer with Oracle Service Bus (OSB)

🏢 Summary: Senior Java Developer with AI Integration role focused on building scalable, enterprise-grade claims management solutions using Java, Spring Boot, microservices, and AI-powered automation in a hybrid Warsaw-based environment. The position involves developing backend services, integrating AI/ML components, and contributing to event-driven architectures within Agile teams. 🗂️ Requirements: 5+ years of Java development experience in enterprise environments, Strong knowledge of Spring and Spring Boot, Experience with microservices, Basic Kubernetes knowledge, Proficiency with GIT, Experience with Oracle or PostgreSQL databases, Experience with transactional data systems, Testing experience with JUnit, Testing experience with Spock, Experience with Testcontainers, Experience with automated pipelines, Experience with messaging systems and asynchronous integrations, Experience delivering AI-based solutions or ML/LLM integrations, Communicative English, Polish language skills, Legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, Kubernetes, GIT, Oracle, PostgreSQL, JUnit, Spock, Testcontainers, Microservices, CQRS, DDD, EDA, Angular, LLM, ML, AI 🏢 Description: Unleash the future of claims management — revolutionize enterprise solutions with innovative backend services and AI-powered automation! Warsaw-based opportunity with hybrid work model (only 1 day x week in the office) As a Senior Java Developer with AI Integration , you will be working for our client, a leader in the insurance industry, specializing in building scalable, enterprise-grade solutions for claims processing. You will contribute to transforming traditional workflows through cutting-edge backend development and intelligent automation, driving operational excellence and exceptional customer experiences. This role offers a unique chance to grow within a forward-thinking organization committed to innovation in insurance technology. Your main responsibilities: Design, develop, and maintain high-quality services in Java (8/11/17/21) and Spring Boot, aligning with business needs in claims management. Collaborate with cross-functional teams to ensure smooth integration and delivery of scalable solutions. Participate in code reviews, testing, and documentation to uphold software quality standards. Implement architectures based on DDD, CQRS, Hexagonal Architecture, and EDA to support robust, event-driven microservices. Work with containerization and orchestration tools such as Kubernetes to ensure deployment efficiency. Build and integrate AI-enabled components, including automation, classification, and information extraction modules. Contribute to Agile/Scrum teams, proposing solutions and delivering end-to-end features with independence and ownership. Drive production stability and continuous improvement of enterprise solutions. You're ideal for this role if you have: Minimum 5 years of experience in Java development within enterprise environments. Strong knowledge of Spring and Spring Boot frameworks. Experience working with microservices and basic Kubernetes knowledge. Proficiency in GIT, relational databases (Oracle/PostgreSQL), and transactional data systems. Testing experience with JUnit, Spock, Testcontainers, and automated pipelines. Experience with messaging systems and asynchronous integrations. Demonstrated autonomy, strong ownership mindset, and team collaboration skills. Proven experience delivering AI-based solutions or integrations with ML/LLM services. It is a strong plus if you have: Experience with Angular 14+ (full-stack development). Hands-on practice designing AI solutions considering security, compliance, and enterprise constraints. Product-oriented mindset with a good understanding of business processes. Language Required for the role: Communicative level of English. Polish language skills are required. Eligibility for the role: Only candidates with a valid legal right to work in the European Union will be considered. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role focused on building scalable, enterprise-grade claims management systems with AI-powered automation. The position involves developing event-driven microservices using modern Java and Spring Boot, integrating AI/ML components, and ensuring production stability in an Agile environment. Hybrid work model with strong emphasis on backend architecture and intelligent automation. 🗂️ Requirements: Minimum 5 years of Java development experience in enterprise environments, Strong knowledge of Spring and Spring Boot, Experience with microservices architecture, Basic knowledge of Kubernetes, Proficiency with Git, Experience with Oracle or PostgreSQL databases, Experience with JUnit, Spock, and Testcontainers, Experience with messaging systems and asynchronous integrations, Experience delivering AI-based solutions or integrating ML/LLM services, Communicative English, Polish language skills, Valid legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, Microservices, Kubernetes, Git, Oracle, PostgreSQL, JUnit, Spock, Testcontainers, CQRS, DDD, Hexagonal, EDA, Messaging, AI, ML, LLM, Angular, Scrum 🏢 Description: Unleash the future of claims management — revolutionize enterprise solutions with innovative backend services and AI-powered automation! Warsaw-based opportunity with hybrid work model (only 1 day x week in the office) As a Senior Java Developer with AI Integration , you will be working for our client, a leader in the insurance industry, specializing in building scalable, enterprise-grade solutions for claims processing. You will contribute to transforming traditional workflows through cutting-edge backend development and intelligent automation, driving operational excellence and exceptional customer experiences. This role offers a unique chance to grow within a forward-thinking organization committed to innovation in insurance technology. Your main responsibilities: Design, develop, and maintain high-quality services in Java (8/11/17/21) and Spring Boot, aligning with business needs in claims management. Collaborate with cross-functional teams to ensure smooth integration and delivery of scalable solutions. Participate in code reviews, testing, and documentation to uphold software quality standards. Implement architectures based on DDD, CQRS, Hexagonal Architecture, and EDA to support robust, event-driven microservices. Work with containerization and orchestration tools such as Kubernetes to ensure deployment efficiency. Build and integrate AI-enabled components, including automation, classification, and information extraction modules. Contribute to Agile/Scrum teams, proposing solutions and delivering end-to-end features with independence and ownership. Drive production stability and continuous improvement of enterprise solutions. You're ideal for this role if you have: Minimum 5 years of experience in Java development within enterprise environments. Strong knowledge of Spring and Spring Boot frameworks. Experience working with microservices and basic Kubernetes knowledge. Proficiency in GIT, relational databases (Oracle/PostgreSQL), and transactional data systems. Testing experience with JUnit, Spock, Testcontainers, and automated pipelines. Experience with messaging systems and asynchronous integrations. Demonstrated autonomy, strong ownership mindset, and team collaboration skills. Proven experience delivering AI-based solutions or integrations with ML/LLM services. It is a strong plus if you have: Experience with Angular 14+ (full-stack development). Hands-on practice designing AI solutions considering security, compliance, and enterprise constraints. Product-oriented mindset with a good understanding of business processes. Language Required for the role: Communicative level of English. Polish language skills are required. Eligibility for the role: Only candidates with a valid legal right to work in the European Union will be considered. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role focused on designing and delivering high-quality, scalable solutions for the securities industry within an international, agile environment. The position involves active participation in technical decision-making, cross-team collaboration, and maintaining robust enterprise-grade applications. Hybrid work model with up to four remote days per week. 🗂️ Requirements: Minimum 4 years of experience in Java development in enterprise environments, Strong knowledge of Java core technologies and frameworks, Experience working in cross-functional and international teams, Familiarity with Agile methodologies, Familiarity with DevOps practices, Fluent Polish and English, Legal right to work in the European Union 📃 Skills: Java, Agile, DevOps 🏢 Description: Unleash innovation in fintech — craft transformative solutions for the securities industry. Warszawa or Kraków-based opportunity with a hybrid work model (up to 4 remote days per week). As a Senior Java Developer working for our client, you will be a vital part of the TA IT team within the Securities Services cluster, focusing on delivering cutting-edge solutions for operational teams. You will be actively involved in technical discussions, decision-making processes, and collaborating with cross-location squads to ensure the robustness, quality, and sustainability of our applications. This role offers a unique chance to work in a dynamic, international environment, fostering growth and technical excellence. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with business needs. Participate in technical discussions to drive innovative solutions and best practices. Collaborate with Business Analysts, Developers, and other stakeholders across locations to ensure project continuity. Contribute to code reviews, testing, and deploying scalable software as part of agile squads. Troubleshoot and resolve complex technical issues, providing quick and effective solutions. Document technical specifications and ensure adherence to compliance and security standards. Stay updated with the latest industry trends and incorporate new technologies into the development lifecycle. You're ideal for this role if you have: Minimum 4 years of experience in Java development within enterprise environments. Strong knowledge of Java core technologies and frameworks. Experience working with cross-functional and international teams. Excellent communication skills in Polish and English, with fluent command of both languages. Familiarity with Agile methodologies and DevOps practices. Ability to adapt quickly to changing project requirements and priorities. Strong problem-solving skills and attention to detail. It is a strong plus if you have: (optional) Experience working on financial or securities-related projects. Knowledge of additional programming languages or frameworks. Certifications related to Java development or agile methodologies. Language Required for the role: Polish: Fluent English: Fluent Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. We offer you At ITDS , you will work on innovative and impactful technology projects for international companies across multiple industries in Europe and beyond. We create an environment for ambitious, driven professionals who want to grow, deliver value, and build their careers in modern IT and digital transformation. Our offer includes: Stable and long-term cooperation with attractive conditions Opportunities to develop your technical expertise across various industries and technologies The chance to work on high-impact, strategic IT and digital transformation projects A clear career path and the opportunity to grow quickly by contributing to diverse client initiatives over time International environment , knowledge sharing, social events, and training opportunities Access to an attractive medical package Access to the Multisport program Access to learning platforms such as Pluralsight Flexible working hours and remote work options #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data. # 8769

🏢 Summary: Senior Java Developer role focused on building secure, scalable enterprise banking applications using modern Java and Spring technologies in a hybrid work model. The position involves developing high-performance REST APIs, managing databases, and supporting CI/CD pipelines within a complex enterprise environment. You will collaborate with cross-functional teams to deliver robust financial solutions. 🗂️ Requirements: 5+ years of Java development experience in enterprise environments, Strong expertise in Java and Spring Boot, Experience with JPA and REST API development, Proficiency with PostgreSQL and Oracle databases, Knowledge of security patterns and testing frameworks, Experience with CI/CD and containerization tools, Communicative proficiency in Polish, Legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, JPA, REST, PostgreSQL, Oracle, JUnit, Mockito, OpenShift, Jenkins, GitLab, Maven, Liquibase, Postman, RabbitMQ, Kafka, MongoDB, Camunda, CICD 🏢 Description: Unleash innovation — drive the future of enterprise software development! Wroclaw/Poznań-based opportunity with hybrid work model (up to 4 remote days per week). As a Senior Java Developer , you will be working for our client, a leader in the banking sector dedicated to delivering cutting-edge financial solutions. You will help build robust, secure, and scalable enterprise applications that empower banking institutions and SME clients across Europe. Join us in shaping the digital transformation of financial services and advancing your career in a dynamic, innovative environment. Your main responsibilities: Develop and maintain high-performance Java applications using Spring Boot (preferably 21/25 versions) and Spring frameworks. Design, implement, and optimize REST APIs with security best practices. Collaborate closely with testers, analysts, and Product Owners to deliver seamless solutions. Manage databases including PostgreSQL, Oracle, and utilize JPA for persistence layer development. Use architectural tools such as Postman, Liquibase, Jenkins, Gitlab, Maven, and OpenShift to ensure continuous integration and delivery. Contribute to system security design, integrating technologies like Mockito, JUnit, RabbitMQ, Kafka, and MongoDB. Participate in code reviews, architectural discussions, and testing for quality assurance. Support deployment pipelines and collaborate with cross-functional teams to deliver excellence. You're ideal for this role if you have: 5+ years of experience in Java development within enterprise environments. Strong expertise in Java, Spring (preferably 21/25), JPA, and REST API development. Proficiency in database management, including PostgreSQL and Oracle. Solid knowledge of security patterns and testing frameworks such as JUnit and Mockito. Experience working with containerization and CI/CD tools like OpenShift, Jenkins, and Gitlab. Comfortable working in a collaborative environment with testers, analysts, and Product Owners. It is a strong plus if you have: (optional) Experience with RabbitMQ, Kafka, or MongoDB. Familiarity with Camunda BPM and banking industry solutions. Certifications or knowledge related to these technologies. Language Required for the role: Communicative proficiency in Polish. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data. We offer you At ITDS , you will work on innovative and impactful technology projects for international companies across multiple industries in Europe and beyond. We create an environment for ambitious, driven professionals who want to grow, deliver value, and build their careers in modern IT and digital transformation. Our offer includes: Stable and long-term cooperation with attractive conditions Opportunities to develop your technical expertise across various industries and technologies The chance to work on high-impact, strategic IT and digital transformation projects A clear career path and the opportunity to grow quickly by contributing to diverse client initiatives over time International environment , knowledge sharing, social events, and training opportunities Access to an attractive medical package Access to the Multisport program Access to learning platforms such as Pluralsight Flexible working hours and remote work options Internal number #8702

🏢 Summary: Senior Java Developer role focused on building, maintaining, and optimizing scalable Java applications for complex financial and enterprise systems in a hybrid Krakow setup. The position involves working with microservices architecture, REST APIs, and databases within an Agile environment. You will contribute to design, development, performance optimization, and technical reviews. 🗂️ Requirements: Minimum 6 years of Java development experience, At least 5 years of experience with Spring and Spring Boot, Strong experience with Microservices architecture, Strong knowledge of REST APIs and integration patterns, Experience with SQL and NoSQL databases, Ability to design application architecture, Experience working in Agile environments 📃 Skills: Java, Spring, SpringBoot, Microservices, REST, SQL, NoSQL, APIs, Architecture, Agile 🏢 Description: 📍 Location: Krakow, hybrid 3 days/week Role: Senior Java Developer Role Description: We are looking for an experienced Java Developer to join technology team. You will be responsible for developing, maintaining, and optimizing Java-based applications that support complex financial systems and enterprise platforms. Key Competencies: Agile way of working and collaboration in cross-functional teams Advanced Java concepts and object-oriented design principles Java API management, RESTful services, and Microservices architecture Database technologies (SQL / NoSQL) and performance optimization Requirements: Minimum 6 years of experience in Java development Strong experience with Spring / Spring Boot and Microservices (5+ years) Good understanding of REST APIs, integration patterns, and application architecture Experience with database technologies and writing efficient queries Ability to work in a team environment and communicate effectively with technical and non-technical stakeholders Experience working in Agile delivery environments Nice-to-Have / Bonus Skills: Experience in production support and troubleshooting Participation in design and architecture reviews Exposure to cloud platforms and modern deployment pipelines Mentoring or leading technical discussions Responsibilities: Design, develop, and maintain scalable Java applications Participate in design and code reviews Troubleshoot issues and optimize system performance Collaborate with business analysts and other teams to deliver solutions Prepare technical documentation and reports as needed

🏢 Summary: Senior Java Developer role focused on designing, implementing, and maintaining scalable and secure solutions within a complex payment terminal ecosystem. The position involves working with distributed systems, message queues, and legacy code while enhancing system performance and reliability. The role requires strong backend expertise and collaboration on integration and automated testing initiatives. 🗂️ Requirements: Minimum 4 years of Java development experience, Strong object-oriented programming skills, Proficiency in Java 8+, Experience with Spring and Spring Boot, Experience with Hibernate or JPA, Experience with JEE, Practical experience with RabbitMQ or other message queues, Experience with Maven, Git, Gitlab, Jenkins, Nexus, Jira, Strong knowledge of Oracle or other relational databases, Experience in RESTful API design and system integration, Experience with distributed systems, Experience with JBoss or WildFly, Experience with Hazelcast or cache technologies, Ability to create and maintain automated tests, Good command of English (B2 level), Legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, JEE, RabbitMQ, Maven, Git, Gitlab, Jenkins, Nexus, Jira, Oracle, SQL, REST, JBoss, WildFly, Hazelcast 🏢 Description: Warsaw-based opportunity with hybrid work model (4 days from the office / week) As a Senior Java Developer , you will be working for our client, a leader in managing a complex payment terminal ecosystem that connects thousands of devices across multiple vendors. You will play a pivotal role in designing and implementing cutting-edge IT solutions to enhance the system’s performance, security, and scalability, driving the future of financial transactions. Your main responsibilities: Design and implement IT solutions based on analytical and technical documentation Review analytical documentation and create comprehensive technical documentation Conduct technical upgrades and work with legacy code to maintain system integrity Perform reverse engineering using existing source code and documented business processes Define and build test cases for automated testing frameworks Collaborate on system integration tasks involving distributed systems and message queues Support ongoing system improvements and security assessments, including vulnerability scans You're ideal for this role if you have: At least 4 years of experience in Java development, with strong object-oriented programming skills In-depth knowledge of Java 8+ and frameworks such as Spring, Spring Boot, Hibernate/JPA, and JEE Practical experience with message queue systems, especially RabbitMQ Familiarity with tools like Maven, Git, Gitlab, Jenkins, Nexus, and Jira supporting software development Solid understanding of relational databases, particularly Oracle Hands-on experience with RESTful API design and system integration Experience working with distributed systems, application servers (JBoss/WildFly), and cache technologies (Hazelcast) Knowledge of security scanning tools like Fortify or Sonatype is a plus Good command of English (B2 level) and excellent communication skills It is a strong plus if you have: Additional certifications in Java or cloud technologies Experience with microservices architecture and containerization (e.g., Docker, Kubernetes) Language Required for the role: Good command of English (Communicative level) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. We offer you: ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions Enhance your skills and develop your expertise in the financial industry Work on the most strategic projects available in the market Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years Participation in Social Events, training, and work in an international environment Access to an attractive Medical Package Access to Multisport Program #GETREADY Internal job ID #9111 You can report violations in accordance with ITDS’s Whistleblower Procedure available here . #MAKEYourCareerBETTER

🏢 Summary: Senior Java/Guidewire Developer role focused on building and enhancing insurance claim management solutions using Guidewire ClaimCenter and Java technologies. The position involves developing high-quality, secure, and scalable software within Agile teams, contributing to system integrations and optimization. The role emphasizes best practices, reliability, and modern architecture in a 100% remote model. 🗂️ Requirements: 5+ years of software development experience, 2+ years of hands-on experience with Gosu and Guidewire ClaimCenter, 3+ years of Java experience with Spring Boot, Experience with version control systems (Git), Knowledge of relational databases (Oracle or PostgreSQL), Experience with asynchronous messaging systems (JMS, RabbitMQ, or Kafka), Understanding of Agile/Scrum methodologies, Knowledge of security standards and protocols (OWASP Top 10, OAuth2, JWT) 📃 Skills: Java, Gosu, Guidewire, ClaimCenter, SpringBoot, Git, Oracle, PostgreSQL, JMS, RabbitMQ, Kafka, Agile, OWASP, OAuth2, JWT 🏢 Description: Unleash transformative insurance innovation — advance the future of Guidewire development! Warsaw-based opportunity with 100% remote work model As a Senior Java/Guidewire Developer , you will be working for our client, a leader in the insurance technology industry. You will contribute to developing and maintaining innovative software solutions that streamline claim management processes, enabling clients to deliver smoother, smarter experiences. Join us and be part of a forward-thinking team committed to transforming the insurance landscape. Your main responsibilities: Develop and enhance product-based insurance software solutions in collaboration with business partners Implement and maintain high-quality, best-practice code following Agile methodologies Perform code reviews, testing, and documentation to ensure reliability and compliance Collaborate closely with cross-functional teams to deliver seamless solutions Maintain technical and business documentation to support ongoing development Integrate with and optimize systems using technologies like Gosu, Guidewire ClaimCenter, Java, Spring Boot, and more Ensure security standards and best practices, including OWASP Top 10 and access/authentication protocols You're ideal for this role if you have: At least 5 years of experience in software development Minimum 2 years of hands-on experience with Gosu language and Guidewire ClaimCenter 3+ years of Java programming experience (Java 8/11/17/21) with Spring Boot Proficiency with version control systems like GIT Knowledge of relational databases (Oracle/PostgreSQL preferred) Experience with asynchronous messaging systems (JMS, RabbitMQ, Kafka, etc.) Familiarity with Agile/Scrum methodologies Basic understanding of security concepts, OWASP Top 10, OAuth2, JWT Strong communication skills in Polish (professional level), with a good command of English (communicative level) It is a strong plus if you have: Experience with Angular framework Knowledge of monitoring tools such as Dynatrace, Splunk, Kibana Experience with NoSQL databases like MongoDB, Redis, or Infinispan Background in microservices architecture and Kubernetes Language Required for the role: Polish — professional level English — communicative Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Guidewire Developer role focused on building and enhancing insurance software solutions for claims management in a fully remote model. The position involves developing high-quality, secure applications using Guidewire ClaimCenter, Gosu, and Java within an Agile environment. The role centers on system integration, optimization, and maintaining best-practice standards in insurance technology projects. 🗂️ Requirements: Minimum 5 years of software development experience, Minimum 2 years of hands-on experience with Gosu and Guidewire ClaimCenter, Minimum 3 years of Java experience with Spring Boot, Experience with version control systems, Knowledge of relational databases, Experience with asynchronous messaging systems, Understanding of Agile/Scrum methodologies, Knowledge of security standards including OWASP Top 10, OAuth2, JWT 📃 Skills: Gosu, Guidewire, ClaimCenter, Java, SpringBoot, Git, Oracle, PostgreSQL, JMS, RabbitMQ, Kafka, OWASP, OAuth2, JWT, SQL, Agile, Scrum 🏢 Description: Unleash transformative insurance innovation — advance the future of Guidewire development! Warsaw-based opportunity with 100% remote work model As a Senior Java/Guidewire Developer , you will be working for our client, a leader in the insurance technology industry. You will contribute to developing and maintaining innovative software solutions that streamline claim management processes, enabling clients to deliver smoother, smarter experiences. Join us and be part of a forward-thinking team committed to transforming the insurance landscape. Your main responsibilities: Develop and enhance product-based insurance software solutions in collaboration with business partners Implement and maintain high-quality, best-practice code following Agile methodologies Perform code reviews, testing, and documentation to ensure reliability and compliance Collaborate closely with cross-functional teams to deliver seamless solutions Maintain technical and business documentation to support ongoing development Integrate with and optimize systems using technologies like Gosu, Guidewire ClaimCenter, Java, Spring Boot, and more Ensure security standards and best practices, including OWASP Top 10 and access/authentication protocols You're ideal for this role if you have: At least 5 years of experience in software development Minimum 2 years of hands-on experience with Gosu language and Guidewire ClaimCenter 3+ years of Java programming experience (Java 8/11/17/21) with Spring Boot Proficiency with version control systems like GIT Knowledge of relational databases (Oracle/PostgreSQL preferred) Experience with asynchronous messaging systems (JMS, RabbitMQ, Kafka, etc.) Familiarity with Agile/Scrum methodologies Basic understanding of security concepts, OWASP Top 10, OAuth2, JWT Strong communication skills in Polish (professional level), with a good command of English (communicative level) It is a strong plus if you have: Experience with Angular framework Knowledge of monitoring tools such as Dynatrace, Splunk, Kibana Experience with NoSQL databases like MongoDB, Redis, or Infinispan Background in microservices architecture and Kubernetes Language Required for the role: Polish — professional level English — communicative Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Java Developer role focused on building and maintaining backend microservices in the Credit Data Sourcing domain within a banking environment. The position involves designing data flows, system integrations, and scalable business logic, as well as supporting production incidents. Work is performed in an Agile team with hybrid presence in Poland. 🗂️ Requirements: Strong experience with Java and backend development, Experience designing and maintaining microservices, Experience with data flows and data sourcing systems, Experience in integration-heavy environments, Ability to analyze end-to-end data flow across systems, Ability to assess impact on upstream and downstream systems, Experience working with distributed systems, Experience in incident analysis and troubleshooting, Understanding of financial or credit domain systems 📃 Skills: Java, Microservices, Dataflows, Integrations, Distributed, Banking, Credit, Agile, Scrum, Troubleshooting 🏢 Description: OFFER DETAILS: Industry: Banking Location: Warsaw / Gdańsk / Łódź Work model: Hybrid – 3 days per week in the office required Rate: up to 160 PLN/hour net + VAT Contract type: B2B Overview: The Senior Java Developer role focuses on the development and maintenance of backend services in the Credit Data Sourcing domain. This position requires strong involvement in data flows, integrations, and business logic, along with close collaboration with Business Analysts, Product Owners, and other stakeholders. The role also includes participating in production support and incident resolution. Main Responsibilities: Design, develop, and maintain Java-based microservices. Implement and optimize data flows and integrations between systems. Collaborate with analysts on user stories, acceptance criteria, and solution design. Translate business requirements into scalable technical solutions. Support incident analysis and troubleshooting including logs and root cause analysis. Contribute to refinement sessions and technical design discussions. Ensure high-quality code, testing, and performance. Key Requirements: Experience in data flows and data sourcing systems. Experience in integration-heavy environments. Ability to understand end-to-end data flow across systems. Ability to analyze impact of changes on upstream/downstream systems. Experience in the financial/credit domain is advantageous. Strong analytical and problem-solving skills. Good communication with both technical and business stakeholders. Ownership mindset and responsibility for delivery. Comfortable working in complex, distributed systems. Nice to Have: Experience with frontend frameworks like Angular or React. Experience in credit risk and banking systems. Experience with event-driven architectures. Performance tuning in data-heavy systems. Other Details: This position is based in Poland, specifically in Gdańsk, Warsaw, or Łódź. The role operates within an Agile/Scrum team environment, emphasizing close collaboration and regular alignment around releases. Ideal candidates will thrive in a dynamic, interdisciplinary setting.

🏢 Summary: Senior Java Developer role focused on building and maintaining core banking systems using modern Java and event-driven microservices architecture. The position involves developing scalable services, evolving legacy systems, and contributing to a complex microservices ecosystem within a CI/CD environment. Remote work model with strong emphasis on high-quality, domain-driven design in the financial sector. 🗂️ Requirements: 7+ years of Java development experience, Experience in banking or financial services, Deep knowledge of Java 21/25, Strong knowledge of Spring Boot, Experience with MongoDB, Strong experience with Apache Kafka, Experience with event-driven architecture, Proficiency in REST APIs, Proficiency with Git, Proficiency with Maven, Experience with CI/CD tools, Experience with microservices architecture, Understanding of Domain-Driven Design (DDD), Ability to work with legacy systems, Communicative Polish, Legal right to work in the EU 📃 Skills: Java, Spring, SpringBoot, MongoDB, Kafka, REST, Git, Maven, Jenkins, OpenShift, JaCoCo, SonarQube, CQRS, DDD, Hexagonal, Microservices, CI/CD 🏢 Description: Empower scalable financial systems — drive innovation in banking technology! Warsaw-based opportunity with remote work model (up to 5 days remote per week). As a Senior Java Developer , you will be working for our client, a leader in the banking industry, dedicated to building and maintaining core domain systems that serve internal clients. Join us in creating robust, event-driven microservices that shape the future of banking infrastructure, fostering seamless digital experiences and technological excellence. Your main responsibilities: Develop and maintain core banking services using Java 21/25, Spring Boot 4.0, and MongoDB. Design and implement event-driven architectures utilizing Apache Kafka and Schema Registry. Collaborate on microservices ecosystem, ensuring high quality and scalability. Work with legacy code and contribute to system evolution within a complex environment. Ensure code quality through tools like JaCoCo and SonarQube, following best practices. Participate in CI/CD pipelines using OpenShift, Jenkins, and Maven. Apply Domain-Driven Design (DDD), CQRS, and Hexagonal architecture principles. Work independently within a mono-repo approach, managing multiple repositories and shared libraries. You're ideal for this role if you have: 7+ years of experience in Java development, ideally within banking or financial services. Deep knowledge of Java (21/25), Spring Boot, and MongoDB. Strong experience with Kafka and event-driven architecture. Proficiency with REST APIs, Git, Maven, and CI/CD tools. Ability to work with legacy systems and develop scalable solutions. Solid understanding of microservices architecture and domain modeling. It is a strong plus if you have: (optional) Certifications or experience in OpenShift, Jenkins, or related cloud technologies. Language Required for the role: Communicative Polish. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.