Senior Java Developer - Microservices

🏢 Summary: Senior Java Developer role in a hybrid model (up to 4 remote days per week) focused on designing and delivering robust, scalable enterprise applications. The position involves end-to-end Java development, technical design, troubleshooting, and contribution to CI/CD processes. You will collaborate with cross-functional teams to build high-quality, performance-driven software solutions. 🗂️ Requirements: Minimum 7 years of professional experience in Java development, Strong proficiency in Java and enterprise-level applications, Solid understanding of software design patterns and architecture, Ability to work in a hybrid work model, Fluent English proficiency, Good command of Polish, Legal right to work in the European Union 📃 Skills: Java, CI/CD, Microservices, Cloud, Architecture, DesignPatterns 🏢 Description: Empower innovative software solutions — shape the future of Java development! Warszawa-based opportunity with hybrid work model (up to 4 remote days per week) As a Senior Java Developer within our client’s software development team, you will be working for a leading industry innovator dedicated to delivering cutting-edge applications. Your expertise will drive the development of robust, scalable, and efficient systems that empower organizations and transform digital experiences. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with project requirements Collaborate with cross-functional teams to deliver seamless software solutions Identify and troubleshoot technical issues to ensure optimal system performance Participate in code reviews, testing, and documentation to uphold coding standards Contribute to continuous integration and deployment processes to enhance development workflows Implement best practices in software development and contribute to technical design discussions You're ideal for this role if you have: At least 7 years of professional experience in Java development Strong proficiency in Java, with experience in enterprise-level applications Solid understanding of software design patterns and architecture Ability to work effectively in a hybrid environment with a flexible remote schedule Good command of Polish and English, with fluent proficiency in English Excellent problem-solving skills and attention to detail It is a strong plus if you have: (optional) Experience with cloud platforms or microservices architecture Knowledge of additional programming languages or frameworks Certifications in Java or related technologies Language Required for the role: Polish and English – fluent proficiency in English preferred 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 designing and delivering robust, scalable enterprise applications within a hybrid work model. The position involves full-cycle development, technical design, troubleshooting, and contributing to CI/CD processes. Ideal for experienced Java professionals who want to shape high-quality software solutions in a collaborative environment. 🗂️ Requirements: Minimum 7 years of professional experience in Java development, Strong proficiency in Java and enterprise-level applications, Solid understanding of software design patterns and architecture, Fluent English proficiency, Good command of Polish, Ability to work in a hybrid work model, Legal right to work in the European Union 📃 Skills: Java, CI/CD, Microservices, Cloud, Architecture, DesignPatterns 🏢 Description: Empower innovative software solutions — shape the future of Java development! Warszawa-based opportunity with hybrid work model (up to 4 remote days per week) As a Senior Java Developer within our client’s software development team, you will be working for a leading industry innovator dedicated to delivering cutting-edge applications. Your expertise will drive the development of robust, scalable, and efficient systems that empower organizations and transform digital experiences. Your main responsibilities: Design, develop, and maintain high-quality Java applications aligned with project requirements Collaborate with cross-functional teams to deliver seamless software solutions Identify and troubleshoot technical issues to ensure optimal system performance Participate in code reviews, testing, and documentation to uphold coding standards Contribute to continuous integration and deployment processes to enhance development workflows Implement best practices in software development and contribute to technical design discussions You're ideal for this role if you have: At least 7 years of professional experience in Java development Strong proficiency in Java, with experience in enterprise-level applications Solid understanding of software design patterns and architecture Ability to work effectively in a hybrid environment with a flexible remote schedule Good command of Polish and English, with fluent proficiency in English Excellent problem-solving skills and attention to detail It is a strong plus if you have: (optional) Experience with cloud platforms or microservices architecture Knowledge of additional programming languages or frameworks Certifications in Java or related technologies Language Required for the role: Polish and English – fluent proficiency in English preferred 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 optimizing scalable backend systems for real-time data processing in a fully remote environment. The position involves developing Java 17+ and Spring Boot applications, managing Kafka streams, implementing CI/CD pipelines, and maintaining high-quality testing and database solutions. 🗂️ Requirements: 5+ years of Java development experience, Java 17+ proficiency, Spring Boot expertise, REST API design experience, Apache Kafka experience, JUnit knowledge, Mockito knowledge, CI/CD experience, Jenkins familiarity or GitLab CI familiarity, Good Polish language skills, Communicative English level, Legal right to work in the European Union 📃 Skills: Java, Spring, Kafka, JUnit, Mockito, REST, Jenkins, GitLab, PostgreSQL, RabbitMQ, OpenShift, Prometheus, Grafana, JMeter 🏢 Description: Unleash innovative backend solutions — shape the future of real-time data processing! 100% remote work. As a Senior Java Developer, you will be working for a client focused on building robust, scalable software solutions. You will contribute to advancing data-driven platforms, delivering impactful backend components that support critical business operations and digital transformation. Your main responsibilities: - Develop and optimize Java 17+ applications with Spring Boot, focusing on REST API creation and integration. - Design and write automated tests, including unit, integration, contract, and API testing using JUnit, Mockito, and REST Assured. - Manage Apache Kafka streams, ensuring seamless real-time data processing and system reliability. - Implement CI/CD pipelines with Jenkins or GitLab CI to improve development workflows. - Maintain and enhance PostgreSQL database solutions, ensuring data integrity and performance. - Collaborate across teams to troubleshoot and resolve complex technical issues. - Document technical specifications and participate in code reviews. You’re ideal for this role if you have: - At least 5 years of professional experience in Java development. - Advanced knowledge of Java 17+, Spring Boot, and REST API design. - Proven expertise with Apache Kafka. - Experience with testing frameworks such as JUnit and Mockito. - Familiarity with CI/CD tools like Jenkins or GitLab CI. Nice to have: - Working knowledge of PostgreSQL and RabbitMQ. - Experience with OpenShift, Prometheus, Grafana, or JMeter. Language requirements: - Polish: Good command. - English: Communicative level. Eligibility: - Only candidates with an existing legal right to work in the European Union will be considered. Interested candidates should apply with a CV, preferably in English, including consent to the processing and storage of personal data.

🏢 Summary: Senior Java Developer role focused on building scalable REST APIs and advanced backend systems using modern Java and Spring technologies. The position involves designing, developing, and testing secure enterprise solutions in a hybrid work model. It offers the opportunity to contribute to large-scale digital transformation initiatives. 🗂️ Requirements: 5+ years of professional experience in Java development, Strong expertise in Java 17+, Strong expertise in Spring Boot 3/4+, Experience with Git, Kubernetes, Jenkins, Flyway, RabbitMQ, and PostgreSQL, Experience in building and securing REST APIs, Ability to perform unit and integration testing, Ability to analyze requirements and translate them into technical solutions, Fluent English (written and spoken), Legal right to work in the European Union, Availability to work in a hybrid model (up to 2 remote days per week) 📃 Skills: Java, Spring, SpringBoot, Git, Kubernetes, Jenkins, Flyway, RabbitMQ, PostgreSQL, REST, UnitTesting, IntegrationTesting, Architecture, Security, English 🏢 Description: Unleash innovation with scalable enterprise solutions — shape the future of digital transformation! Warsaw-based opportunity with hybrid work model (up to 2 remote days per week). As a Senior Java Developer , you will be working for our client, a leading player in the technology industry committed to delivering cutting-edge software solutions. You will contribute to building robust, scalable REST APIs and advanced backend systems, empowering organizations to transform their digital landscapes and drive business success. This is your chance to grow your career at the forefront of technological innovation. Your main responsibilities: Analyze requirements and convert them into comprehensive technical tasks, supporting the development process. Propose and challenge technical solutions to ensure optimal implementation. Develop functionalities in Java 17+ using Spring Boot 3/4+ in line with architectural and security standards. Conduct thorough unit and integration testing to ensure code quality. Create and update technical and architectural documentation for ongoing project clarity. Share knowledge with team members to foster continuous learning and improvement. Stay updated on technological advancements and suggest innovative enhancements. You're ideal for this role if you have: 5+ years of professional experience in Java development or relevant fields. Strong expertise in Java 17+ and Spring Boot (version 3 or 4+). Experience with Git, Kubernetes, Jenkins, Flyway, RabbitMQ, and PostgreSQL. Proven ability to analyze complex requirements and translate them into technical solutions. Solid understanding of REST API development, architecture, security, and best practices. Excellent communication skills in fluent English. Ability to work in a hybrid model, with up to 2 remote days per week. It is a strong plus if you have: Knowledge of containerization and orchestration tools or certifications. Experience working within Agile teams or with CI/CD pipelines. Language Required for the role: Fluent English, written and spoken. Eligibility to work in Europe: 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 Microservices Developer role focused on building, maintaining, and modernizing enterprise-grade Java systems in a hybrid work model. The position involves developing scalable microservices, integrating distributed systems, and upgrading legacy applications within complex enterprise environments. You will contribute to secure, high-performance solutions supporting large-scale digital transformation initiatives. 🗂️ Requirements: Minimum 5 years of experience in Java development, Commercial experience with Java 8+, Strong experience with Spring and SpringBoot, Experience with microservices architecture, Experience with REST and SOAP integrations, Knowledge of SQL and Oracle databases, Experience with Tomcat or similar application servers, Knowledge of TLS/mTLS and secure communication mechanisms, Experience with Maven or Gradle, Experience with Git version control, Ability to write Bash or CMD scripts, Experience working with legacy codebases, Communicative proficiency in Polish 📃 Skills: Java, Spring, SpringBoot, SQL, Oracle, Microservices, REST, SOAP, Tomcat, TLS, mTLS, Maven, Gradle, Git, Bash, CMD, UML, SOAPUI, Postman, Queues 🏢 Description: Ignite innovation — shape the future of enterprise systems! Warszawa-based opportunity with hybrid work model (up to 4 remote days per week). As a Senior Java Microservices Developer , you will be working for our client, a leading player in the IT industry committed to building scalable, secure, and efficient enterprise solutions. You will contribute to the development and maintenance of complex Java-based systems, driving digital transformation and supporting business agility in a dynamic environment. This role offers new challenges for career growth and impactful projects for global enterprise success. Your main responsibilities: Develop and maintain Java applications (Java 8+) within microservices architecture, ensuring high performance and scalability Collaborate on system enhancements, integrating new features based on detailed business requirements Design and implement solutions using Spring (including older versions) and Spring Boot, adhering to best practices Work on system integration using REST, SOAP, and message queuing systems, ensuring robust and secure communication Contribute to system migration initiatives, upgrading stacks to newer frameworks and technologies Document system designs with UML diagrams and other notation standards to support development and integration efforts Engage in troubleshooting, optimizing, and extending existing legacy codebases, maintaining high code quality You're ideal for this role if you have: At least 5 years of professional experience in Java development within enterprise environments Strong proficiency in Java, including working with legacy codebases Extensive experience with Spring framework (any version) and Spring Boot Solid SQL knowledge and experience with database systems like Oracle Hands-on experience with microservices architecture and monolithic systems on application servers like Tomcat Familiarity with distributed systems architecture and system integration (REST, SOAP, queues) Knowledge of security mechanisms such as TLS/mTLS, certificates, and encrypted connections Working experience with Maven, Gradle, Git, and tools like SOAP UI, POSTMAN Ability to write bash or cmd scripts for automation tasks It is a strong plus if you have: (optional) PLSQL knowledge Familiarity with JSF, JSP, or C++ Experience with Ansible or other automation tools Insights into system security best practices Ability to interpret BPMN and UML standards, with problem-solving skills related to new feature development Language Required for the role: Polish (Communicative proficiency) #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 high‑transaction financial systems using modern Java and SpringBoot technologies. The position involves designing scalable backend solutions, integrating messaging and monitoring tools, and contributing to CI/CD pipelines in an agile environment. Remote work model with a Warsaw-based team. 🗂️ Requirements: 7+ years of Java software development experience, Strong expertise in Java 21+, Experience with SpringBoot 3, Experience with PostgreSQL and Hibernate, Knowledge of DDD principles, Experience with ELK, Dynatrace, Redis, Experience with RabbitMQ and Kafka, Experience with Gitlab, Jenkins, OpenShift, Experience with Junit 5, Mockito, RestAssured, Experience with CI/CD pipelines, Experience with high-transaction online systems, Good command of Polish, Communicative English, Legal right to work in the EU 📃 Skills: Java, SpringBoot, PostgreSQL, Hibernate, DDD, ELK, Dynatrace, Redis, RabbitMQ, Kafka, Gitlab, Jenkins, OpenShift, Junit5, Mockito, RestAssured, CICD, Scrum, Kanban 🏢 Description: Unleash innovation — build transformative Java solutions for the finance sector! Warszawa-based opportunity with remote work model. As a Senior Java Developer , you will be working for our client, a leader in the financial industry, dedicated to developing and supporting high-transactional internet systems. Join a passionate team to create impactful, scalable solutions that shape the future of finance technology and foster career growth. Your main responsibilities: Develop and maintain robust applications using Java 21+ and SpringBoot 3, ensuring high performance and scalability. Design and implement database solutions with PostgreSQL, applying best practices in DDD. Collaborate in agile teams, utilizing methodologies such as Scrum or Kanban, to deliver innovative features. Integrate and optimize system components with tools like ELK, Redis, Dynatrace, and messaging systems like RabbitMQ and Kafka. Write comprehensive unit and integration tests using Junit 5, Mockito, and RestAssured. Participate in CI/CD pipelines with Gitlab, Jenkins, and OpenShift to streamline deployment workflows. Analyze system performance and troubleshoot issues to maintain optimal operation. You're ideal for this role if you have: At least 7 years of experience in software development, primarily with Java-based solutions. Strong expertise with Java 21+ and SpringBoot 3. Experience working with PostgreSQL, Hibernate, and DDD principles. Familiarity with ELK, Dynatrace, Redis, RabbitMQ, Kafka. Proficiency in CI/CD tools like Gitlab, Jenkins, and OpenShift. High analytical skills and experience supporting transactional online systems, preferably in finance. It is a strong plus if you have: Knowledge of agile methodologies such as Scrum or Kanban. Certifications or additional expertise in financial systems or back-end architecture. Language Required for the role: Polish: good command required English: communicative proficiency 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. Internal number #8853

🏢 Summary: Senior Java Developer role focused on building and maintaining scalable microservices and modern web applications using Java 17, Spring, and Angular in a hybrid work model. The position involves developing RESTful services, front-end components, database integrations, and CI/CD workflows within Agile teams. 🗂️ Requirements: 6–8 years of Java development experience, Experience with Java 11+ and Java 17, Knowledge of JDK 8+, Experience with Spring Framework, Experience with Spring Boot, Experience with Spring Batch, Experience with Spring Security, Experience with RESTful microservices, Basic experience with Angular 8+, Experience with TypeScript, Experience with Hibernate, Experience with JUnit, Experience with SQL, Experience with PL/SQL, Experience with Oracle databases, Experience with Jenkins and CI/CD, Fluent English, Legal right to work in the European Union 📃 Skills: Java, Angular, TypeScript, JavaScript, HTML, CSS, Spring, SpringBoot, SpringBatch, SpringSecurity, REST, Hibernate, JUnit, SQL, PLSQL, Oracle, Jenkins, JSON, XML, JDK 🏢 Description: Build intelligent microservices that scale - join our Java + Angular team and ship with confidence! Location & work model Warsaw/Kraków-based opportunity with hybrid work model (up to 4 remote days per week). As a Senior Java Developer (basic Angular) , you will be working for our client, a technology-focused environment where your work directly supports modern web applications and back-end services. You’ll help design, develop, and evolve microservices and front-end components that power reliable, secure, and high-performance solutions—leveraging Java (currently running on Java 17) alongside Angular and RESTful architectures. Your main responsibilities: Develop and maintain back-end services using Java 11+ / Java 17 and Spring Framework (including Spring Boot, Batch, and Security). Build and improve RESTful microservices and support micro-services architecture from API design through implementation. Implement front-end features with Angular (Angular 8+; preferably Angular 14) using TypeScript , JavaScript , HTML , and CSS . Work with data formats and contracts, including JSON and XML , to ensure seamless integration across systems. Create and maintain persistence layers using Hibernate and develop reliable unit tests with JUnit . Develop and optimize database interactions using SQL and PL/SQL with Oracle databases . Collaborate within Agile teams to deliver features efficiently and iteratively. Apply DevOps principles in daily development workflows, including CI/CD pipelines with Jenkins . You're ideal for this role if you have: 6–8 years of experience as a Java Developer . Basic experience with Angular 8+ (preferably Angular 14 ), plus practical TypeScript and modern web front-end development. Strong background in Java 11+ (project currently runs on Java 17 ) and JDK 8+ . Experience with Spring Framework (Spring Boot, Batch, Security). Proven experience with RESTful microservices (minimum 2–3 years ). Working knowledge of Hibernate and JUnit . Experience with SQL , PL/SQL , and Oracle databases . Strong English communication skills and a collaborative mindset, with solid soft skills. It is a strong plus if you have: (optional) Banking or financial industry experience and domain knowledge. Language Required for the role : Fluent English (expected: fluent command). 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 scalable microservices and modern web applications using Java 17, Spring Framework, and Angular in a hybrid work model. The position involves developing RESTful services, front-end components, database integrations, and CI/CD workflows within Agile teams. Candidates need strong Java and microservices experience, along with basic Angular knowledge and Oracle database expertise. 🗂️ Requirements: 6–8 years of experience as a Java Developer, Experience with Java 11+ and JDK 8+, Experience with Spring Boot, Experience with Spring Batch, Experience with Spring Security, Experience with RESTful microservices, Basic experience with Angular 8+, Experience with TypeScript, Experience with Hibernate, Experience with JUnit, Experience with SQL, Experience with PL/SQL, Experience with Oracle databases, Experience with Jenkins CI/CD pipelines, English proficiency, Legal right to work in the European Union 📃 Skills: Java, Angular, TypeScript, JavaScript, HTML, CSS, Spring, SpringBoot, SpringBatch, SpringSecurity, REST, JSON, XML, Hibernate, JUnit, SQL, PLSQL, Oracle, Jenkins, Agile, DevOps 🏢 Description: Build intelligent microservices that scale - join our Java + Angular team and ship with confidence! Location & work model Warsaw/Kraków-based opportunity with hybrid work model (up to 4 remote days per week). As a Senior Java Developer (basic Angular) , you will be working for our client, a technology-focused environment where your work directly supports modern web applications and back-end services. You’ll help design, develop, and evolve microservices and front-end components that power reliable, secure, and high-performance solutions—leveraging Java (currently running on Java 17) alongside Angular and RESTful architectures. Your main responsibilities: Develop and maintain back-end services using Java 11+ / Java 17 and Spring Framework (including Spring Boot, Batch, and Security). Build and improve RESTful microservices and support micro-services architecture from API design through implementation. Implement front-end features with Angular (Angular 8+; preferably Angular 14) using TypeScript , JavaScript , HTML , and CSS . Work with data formats and contracts, including JSON and XML , to ensure seamless integration across systems. Create and maintain persistence layers using Hibernate and develop reliable unit tests with JUnit . Develop and optimize database interactions using SQL and PL/SQL with Oracle databases . Collaborate within Agile teams to deliver features efficiently and iteratively. Apply DevOps principles in daily development workflows, including CI/CD pipelines with Jenkins . You're ideal for this role if you have: 6–8 years of experience as a Java Developer . Basic experience with Angular 8+ (preferably Angular 14 ), plus practical TypeScript and modern web front-end development. Strong background in Java 11+ (project currently runs on Java 17 ) and JDK 8+ . Experience with Spring Framework (Spring Boot, Batch, Security). Proven experience with RESTful microservices (minimum 2–3 years ). Working knowledge of Hibernate and JUnit . Experience with SQL , PL/SQL , and Oracle databases . Strong English communication skills and a collaborative mindset, with solid soft skills. It is a strong plus if you have: (optional) Banking or financial industry experience and domain knowledge. Language Required for the role : Fluent English (expected: fluent command). 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 evolving scalable microservices and modern web applications using Java 17 and Angular in a hybrid work model. The position involves developing RESTful back-end services, implementing front-end features, and ensuring high-performance, secure integrations. You will collaborate in Agile teams and apply DevOps practices with CI/CD pipelines. 🗂️ Requirements: 6–8 years of experience as Java Developer, Experience with Java 11+ / Java 17 and JDK 8+, Experience with Spring Framework (Spring Boot, Batch, Security), Minimum 2–3 years of experience with RESTful microservices, Basic experience with Angular 8+ (preferably Angular 14), Practical experience with TypeScript and modern front-end development, Experience with Hibernate and JUnit, Experience with SQL, PL/SQL and Oracle databases, Fluent English, Legal right to work in the European Union 📃 Skills: Java, JDK, Spring, SpringBoot, SpringBatch, SpringSecurity, Angular, TypeScript, JavaScript, HTML, CSS, REST, Microservices, Hibernate, JUnit, SQL, PLSQL, Oracle, JSON, XML, Jenkins, CI/CD 🏢 Description: Build intelligent microservices that scale - join our Java + Angular team and ship with confidence! Location & work model Warsaw/Kraków-based opportunity with hybrid work model (up to 4 remote days per week). As a Senior Java Developer (basic Angular) , you will be working for our client, a technology-focused environment where your work directly supports modern web applications and back-end services. You’ll help design, develop, and evolve microservices and front-end components that power reliable, secure, and high-performance solutions—leveraging Java (currently running on Java 17) alongside Angular and RESTful architectures. Your main responsibilities: Develop and maintain back-end services using Java 11+ / Java 17 and Spring Framework (including Spring Boot, Batch, and Security). Build and improve RESTful microservices and support micro-services architecture from API design through implementation. Implement front-end features with Angular (Angular 8+; preferably Angular 14) using TypeScript , JavaScript , HTML , and CSS . Work with data formats and contracts, including JSON and XML , to ensure seamless integration across systems. Create and maintain persistence layers using Hibernate and develop reliable unit tests with JUnit . Develop and optimize database interactions using SQL and PL/SQL with Oracle databases . Collaborate within Agile teams to deliver features efficiently and iteratively. Apply DevOps principles in daily development workflows, including CI/CD pipelines with Jenkins . You're ideal for this role if you have: 6–8 years of experience as a Java Developer . Basic experience with Angular 8+ (preferably Angular 14 ), plus practical TypeScript and modern web front-end development. Strong background in Java 11+ (project currently runs on Java 17 ) and JDK 8+ . Experience with Spring Framework (Spring Boot, Batch, Security). Proven experience with RESTful microservices (minimum 2–3 years ). Working knowledge of Hibernate and JUnit . Experience with SQL , PL/SQL , and Oracle databases . Strong English communication skills and a collaborative mindset, with solid soft skills. It is a strong plus if you have: (optional) Banking or financial industry experience and domain knowledge. Language Required for the role : Fluent English (expected: fluent command). 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 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.