Senior Java Developer

🏢 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.

🏢 Summary: Senior Fullstack Developer role focused on modernizing a banking Corporate Netbank Administration system through REST API development and microservices extraction. The position involves refactoring legacy applications and enhancing integrations to improve customer experience. Work is delivered in hybrid model with strong emphasis on Java and modern frameworks. 🗂️ Requirements: Minimum 6 years of hands-on Java development experience, Experience with reactive programming, Working knowledge of Spring framework, Working knowledge of Hibernate, Experience with SQL, Experience with REST APIs, Experience with microservices architecture, Experience with Git, Minimum 2 years of experience with Angular 📃 Skills: Java, Spring, Hibernate, SQL, REST, Microservices, Git, Angular, Reactive 🏢 Description: Industry: Banking Work model: Hybrid in Warsaw or Tricity - 3 days a week in the office Rate: up to 170 PLN/h (B2B contract) The Senior Fullstack Developer role is focused on modernizing the Corporate Netbank Administration (CNA) system, improving the customer experience through API development, and ensuring seamless integration across various services. The position requires strong expertise in Java development and solid experience with modern frameworks. RESPONSIBILITIES: Building REST API solutions and integrations with other applications. Refactoring legacy applications by extracting business logic into microservices. Collaborating with other developers, teams, and stakeholders to deliver optimal solutions. Participating in the development and continuous improvement of services in both microservice and monolith architectures. REQUIREMENTS: Hands-on experience in Java development (preferably at least 6 years). Familiarity with reactive programming . Working knowledge of Spring and Hibernate frameworks. Experience with SQL , REST , Microservices , and Git . At least 2 years of experience with Angular . NICE TO HAVE: Familiarity with the DDD (Domain-Driven Design) approach. Experience with the Cucumber framework. Previous experience working in an international team with English as the common language. Exposure to SAFe Agile methodologies.

🏢 Summary: Hybrid Senior Fullstack Developer role focused on building and maintaining large-scale, event-driven microservices systems using modern Java and Spring Boot alongside Angular-based SPAs. The position involves end-to-end development, security implementation, and active participation in CI/CD and Agile processes. Requires strong hands-on experience across backend and frontend technologies in distributed environments. 🗂️ Requirements: Minimum 6 years professional software development experience, Senior-level hands-on experience with large-scale applications, Strong fullstack experience (backend and frontend), Java 17+ (Java 21 preferred), Spring Boot 3.x and microservices architecture, Experience with Kafka and event-driven systems, Experience with Node.js and TypeScript, Proven experience building SPAs with Angular, Strong SQL skills with Oracle, Experience with OAuth2 and OIDC, Understanding of OWASP web security principles, Experience with Git version control, Experience with GitLab CI, Ability to work in Agile (Scrum/Kanban) environments, Professional English proficiency 📃 Skills: Java, Spring, SpringBoot, Microservices, Kafka, Node.js, TypeScript, Angular, SQL, Oracle, OAuth2, OIDC, OWASP, Git, GitLab, CI/CD, DDD, Redis, Docker, Kubernetes, Jenkins, Maven, Webpack, Python, Jira, Confluence 🏢 Description: Senior Fullstack Developer . This is a hybrid position based in Warsaw , (50% on-site presence). Responsibilities Design, implement and maintain backend services using modern Java (versions 17–21) and Spring Boot 3.x within microservices architectures. Develop and maintain frontend components and Single Page Applications using Node.js, TypeScript and Angular, ensuring maintainability and sound frontend architecture. Architect and implement event-driven and messaging solutions using Kafka; integrate with relational databases (Oracle) and in-memory stores (Redis). Apply Domain-Driven Design principles to model complex business domains and deliver modular, testable solutions. Contribute to security design and implementation of web applications, including OAuth2/OIDC integration and adherence to OWASP principles. Participate in CI/CD pipelines (GitLab CI required), version control workflows (Git), and use developer tools such as IntelliJ and VS Code. Collaborate with distributed, international teams using Agile methodologies (Scrum/Kanban), Jira and Confluence; perform code reviews and provide practical technical guidance to peers. Qualifications Minimum 6 years of professional software development experience, with senior-level, hands-on delivery on large-scale applications. Strong fullstack background; backend-only candidates will not be considered. Excellent written and spoken English. Required technical skills: Java 17 or newer (Java 21 experience preferred) Spring Boot (3.x) and microservices Kafka (event-driven / messaging systems) Domain-Driven Design (DDD) Node.js and TypeScript Proven experience building SPAs with Angular Strong SQL skills, particularly with Oracle Security and tooling: Practical experience with OAuth2 and OIDC; strong understanding of web application security and OWASP principles Version control with Git and CI/CD with GitLab CI (required) Familiarity with Kafka in both backend and operational contexts Working knowledge of Jira and Confluence Desirable (nice to have): Experience with Redis Familiarity with Docker and Kubernetes Experience with Jenkins, Maven and Webpack Python and familiarity with AI-based code generation tools Experience working in distributed, international teams and a DevOps mindset. Benefits Hybrid working arrangement: Warsaw, Poland — approximately 50% on-site presence. Opportunity to work on large-scale systems using modern Java, microservices and event-driven architectures. Collaboration within distributed, international teams and exposure to established Agile and DevOps practices. Use of contemporary developer tooling and platforms (IntelliJ, VS Code, GitLab CI, Kafka, Spring Boot). Scope to apply and deepen expertise in security, DDD and end-to-end fullstack development. Unique TEAL culture, relationship- and respect-driven community, non-corporate atmosphere. Agile approach and no bureaucracy. Outstanding integration trips to various places in Europe for all employees. Activities to support your well-being and health. Luxmed Gold Extended medical care and Multisport Plus benefit. If you meet the stated qualifications and are interested in this opportunity, we encourage you to apply via the application form.

🏢 Summary: Long-term hybrid Java Engineer role on a project for a major international Swiss investment bank, focused on building and maintaining microservices and data streaming solutions in a modern cloud environment. The position requires deep expertise in Java and related enterprise technologies, with work in AI-assisted development and secure, scalable architectures. Opportunity to work with modern technologies in an international setting with strong growth potential. 🗂️ Requirements: 15+ years of experience in Java development, Extensive experience with Flowable, Strong knowledge of Spring Boot, Experience with ORM frameworks (JPA, iBatis), Knowledge of security standards (Azure AD, OAuth), Experience with Kafka, Experience with CosmosDB, Experience with PostgreSQL, Experience with Redis, Experience in building REST services, Experience with Azure cloud, Experience with Docker, Experience with Kubernetes, Experience with Maven, Experience with Gradle, Experience with microservices architecture, Experience with data streaming architectures, Experience with AI-assisted software development 📃 Skills: Java, Flowable, SpringBoot, JPA, iBatis, AzureAD, OAuth, Kafka, CosmosDB, PostgreSQL, Redis, REST, Azure, Docker, Kubernetes, Maven, Gradle, Microservices, DataStreaming, AI 🏢 Description: We are currently looking for talented and experienced Java Developer to join a long-term project with a major international Swiss investment bank operating in the financial sector. 📍 Location: Wroclaw or Krakow 🏢 Hybrid model: 3 days per week from the office Java Engineer with extensive knowledge (15+ years) of Java Flowable, Spring Boot, ORM frameworks (JPA, iBatis) Security (Azure AD, OAuth), Kafka, CosmosDB PostgresSQL, Redis, REST, Azure, Docker, Kubernetes, Maven Gradle, microservices and data streaming architectures and AI‑assisted software development. Benefits ✅ Stable long-term cooperation with opportunity for extension Opportunity to work with modern technologies in an international environment Professional growth and continuous development opportunities Participation in challenging and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Long-term hybrid opportunity for a senior Java Engineer to join a major international Swiss investment bank, working on modern microservices and data streaming architectures. The role focuses on backend development using Java and related enterprise technologies within a complex financial environment. It offers stable cooperation and involvement in impactful, large-scale projects. 🗂️ Requirements: 15+ years of experience with Java, Strong experience with Flowable, Strong experience with Spring Boot, Experience with ORM frameworks (JPA, iBatis), Experience with Azure AD and OAuth security, Experience with Kafka, Experience with CosmosDB, Experience with PostgreSQL, Experience with Redis, Experience with REST APIs, Experience with Azure, Experience with Docker, Experience with Kubernetes, Experience with Maven, Experience with Gradle, Experience with microservices architecture, Experience with data streaming architectures, Experience with AI-assisted software development 📃 Skills: Java, Flowable, SpringBoot, JPA, iBatis, AzureAD, OAuth, Kafka, CosmosDB, PostgreSQL, Redis, REST, Azure, Docker, Kubernetes, Maven, Gradle, Microservices, DataStreaming, AI 🏢 Description: We are currently looking for talented and experienced Java Developer to join a long-term project with a major international Swiss investment bank operating in the financial sector. 📍 Location: Wroclaw or Krakow 🏢 Hybrid model: 3 days per week from the office Java Engineer with extensive knowledge (15+ years) of Java Flowable, Spring Boot, ORM frameworks (JPA, iBatis) Security (Azure AD, OAuth), Kafka, CosmosDB PostgresSQL, Redis, REST, Azure, Docker, Kubernetes, Maven Gradle, microservices and data streaming architectures and AI‑assisted software development. Benefits ✅ Stable long-term cooperation with opportunity for extension Opportunity to work with modern technologies in an international environment Professional growth and continuous development opportunities Participation in challenging and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Senior Backend Java Developer role focused on designing and building scalable, high-performance backend systems using Java and Spring Boot in a cloud-native environment. The position involves developing enterprise-grade solutions, ensuring performance and security, and supporting containerized deployments. The role requires strong experience with modern backend technologies and infrastructure tools. 🗂️ Requirements: 8+ years of backend development experience, Strong experience with Java 17+, Strong experience with Spring and Spring Boot, Experience with Spring Security, Experience with SQL databases, Experience with Maven, Experience with Git and CI/CD pipelines, Experience with testing frameworks (JUnit, AssertJ, Hamcrest), Experience with Kubernetes and Helm, Experience with Bash or Shell scripting, Experience with cloud-native applications, Experience in enterprise environments 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, SQL, Maven, Git, CICD, JUnit, AssertJ, Hamcrest, Kubernetes, Helm, Bash, Shell, Docker, PostgreSQL 🏢 Description: Senior Backend Java Developer Location: Warsaw, Poland (hybrid – 2 days/week in the office) About the Role We’re looking for a Senior Backend Java Developer to design and build scalable, high-performance backend systems for international products. You’ll work in a collaborative environment, contribute to architectural decisions, and mentor other engineers. Responsibilities Design, develop, and maintain backend systems using Java 17+ and Spring Boot Ensure scalability, performance, and security of solutions Work with SQL databases (e.g. PostgreSQL) Support deployments using Docker, Kubernetes, and Helm Use Bash/Shell for automation and integration tasks Lead technical discussions and mentor team members Collaborate in Agile (Scrum) teams and communicate in English Requirements Strong experience with Java 17+, Spring / Spring Boot / Spring Security Experience with cloud-native applications Maven, SQL, Git (GitHub, CI/CD) Testing frameworks (JUnit, AssertJ, Hamcrest) Kubernetes, Helm Bash/Shell scripting English B2/C1 Experience in enterprise environments 8+ years of backend development experience Nice to Have PostgreSQL, Hibernate/JPA Kafka, event-driven architecture Microservices architecture Python Knowledge of C or Go CI/CD tools, JIRA Monitoring tools (Grafana, Prometheus, Kibana) Security best practices (OWASP) Qualifications Degree in Computer Science or related field

🏢 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: Hands-on Java Developer role focused on modernising a long-standing cross-asset platform through Kafka-driven event architecture and microservices. The position involves building integrations, improving legacy systems, and supporting monthly releases within a global engineering setup. Work includes Java, Spring Boot, Kafka integration, and DevOps-aligned development in a hybrid model. 🗂️ Requirements: Commercial experience with Java, Experience with Spring and Spring Boot, Hands-on Kafka integration experience, Knowledge of microservices architecture, Understanding of distributed systems, Experience with legacy system modernisation, DevOps pipelines and CI/CD experience, SQL proficiency 📃 Skills: Java, Spring, SpringBoot, Kafka, Microservices, SQL, CI/CD, DevOps, AWS, Azure, GCP 🏢 Description: Java Developer – Global Investment Bank – Krakow Cross‑Asset Platform | Kafka Migration | Modernisation Project B2B | Hybrid - 3 days per week A global investment bank is expanding its Krakow engineering hub and is looking for Java Developers to support the growth of a 20‑year‑old cross‑asset platform that is now undergoing major modernisation. This is a hands‑on engineering role focused on Kafka integration, microservices, and cloud‑aligned development practices. You’ll join a collaborative team of 20+ developers in Poland, delivering monthly releases that support middle‑office trade capture workflows. What you’ll work on Enhancing and modernising a long‑standing cross‑asset platform Designing and building Kafka integrations as the platform transitions to event‑driven architecture Developing microservices using Java, Spring, Spring Boot Setting up and configuring DevOps pipelines, CI/CD, and environment configs Applying strong software engineering fundamentals to improve reliability and maintainability Writing and optimising SQL queries for data access and reporting Contributing to monthly release cycles and global delivery processes What you bring Solid commercial experience with Java, Spring, and Spring Boot Hands‑on experience with Kafka (building integrations, understanding redundancy, event flows) Understanding of microservices, distributed systems, and cloud‑ready architectures Ability to work with and improve legacy systems while contributing to modernisation Experience with DevOps concepts: configs, pipelines, CI/CD SQL proficiency Comfortable collaborating with global teams across time zones Nice to have Financial services experience, especially in the middle‑office or trade capture Exposure to cloud platforms (AWS/Azure/GCP) Experience working on large, long‑lived enterprise systems Why this role stands out Growth hire — join a team that’s expanding, not replacing Opportunity to modernise a major platform, moving to Kafka-driven architecture Work with a large, supportive engineering community in Poland Stable monthly release cycle and clear delivery rhythm

🏢 Summary: Hybrid Java Developer role in the banking sector focused on building and integrating data flows for Financial Crime Prevention systems. The position involves developing microservices-based solutions using Spring Boot, maintaining existing code, and collaborating on DevOps-driven delivery processes. Candidates will work with modern data, messaging, and containerization technologies in a cross-functional environment. 🗂️ Requirements: Proficiency in DevOps methodology, Strong knowledge of Java, Experience with Spring Boot and microservices, Experience with PostgreSQL, Experience with DataStage (ETL), Strong SQL knowledge, Familiarity with Kubernetes, Familiarity with Bitbucket, Familiarity with Jenkins, Understanding of Kafka 📃 Skills: Java, Spring, SpringBoot, Microservices, PostgreSQL, SQL, DataStage, Kubernetes, Bitbucket, Jenkins, Kafka, Maven, Liquibase, JOLT 🏢 Description: Industries: Banking Location: Hybrid - 3 per week from Gdańsk or Gdynia Rate: 165 pln/h Introduction & Summary We are seeking experienced Java Developers to contribute to the integration and process data flows within the Financial Crime Prevention area. The ideal candidates should possess robust expertise in Java, particularly with the Spring Boot framework, alongside a solid understanding of DevOps practices and relevant database technologies. Main Responsibilities The Java Developers will be tasked with: Implementing functionalities related to financial crime prevention. Collaborating with cross-functional teams to enhance data integration. Maintaining and improving existing codebases. Documenting processes and contributing to technical specifications. Participating in code reviews and ensuring code quality. Key Requirements Proficiency in the DevOps methodology. Strong knowledge of Java, especially with Spring Boot framework and microservices. Experience with Postgres DB, DataStage (ETL), and SQL. Familiarity with Kubernetes, Bitbucket, and Jenkins. Understanding of Kafka and its applications. Able to work effectively in a team environment. Excellent interpersonal and communication skills. Technologies: Java 21, Kubernetes, Kafka, Maven, PostgreSQL, Spring Boot, Liquibase, and JOLT. Nice to Have Experience with Apache Camel. Familiarity with Oracle SOA Suite. Knowledge of SCRUM methodologies. Understanding of CDC concepts, particularly Debezium.

🏢 Summary: Hybrid Java Developer role in the banking sector focused on building and integrating data flows within the Financial Crime Prevention area. The position involves developing microservices-based solutions, enhancing existing systems, and supporting data integration using modern DevOps practices. The role requires strong backend expertise and experience with distributed systems and databases. 🗂️ Requirements: Proficiency in DevOps methodology, Strong knowledge of Java, Experience with Spring Boot, Experience with microservices architecture, Experience with PostgreSQL, Experience with SQL, Experience with DataStage (ETL), Familiarity with Kubernetes, Familiarity with Bitbucket, Familiarity with Jenkins, Understanding of Kafka 📃 Skills: Java, Spring, SpringBoot, Microservices, PostgreSQL, SQL, DataStage, Kubernetes, Bitbucket, Jenkins, Kafka, Maven, Liquibase, JOLT 🏢 Description: Industries: Banking Location: Hybrid - 3 per week from Gdańsk or Gdynia Rate: 165 pln/h Introduction & Summary We are seeking experienced Java Developers to contribute to the integration and process data flows within the Financial Crime Prevention area. The ideal candidates should possess robust expertise in Java, particularly with the Spring Boot framework, alongside a solid understanding of DevOps practices and relevant database technologies. Main Responsibilities The Java Developers will be tasked with: Implementing functionalities related to financial crime prevention. Collaborating with cross-functional teams to enhance data integration. Maintaining and improving existing codebases. Documenting processes and contributing to technical specifications. Participating in code reviews and ensuring code quality. Key Requirements Proficiency in the DevOps methodology. Strong knowledge of Java, especially with Spring Boot framework and microservices. Experience with Postgres DB, DataStage (ETL), and SQL. Familiarity with Kubernetes, Bitbucket, and Jenkins. Understanding of Kafka and its applications. Able to work effectively in a team environment. Excellent interpersonal and communication skills. Technologies: Java 21, Kubernetes, Kafka, Maven, PostgreSQL, Spring Boot, Liquibase, and JOLT. Nice to Have Experience with Apache Camel. Familiarity with Oracle SOA Suite. Knowledge of SCRUM methodologies. Understanding of CDC concepts, particularly Debezium.