Java Developer (Banking)

🏢 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.

🏢 Summary: Full-stack Developer role in the banking industry focused on developing and maintaining microservices and integrating applications with a Cards platform. The position involves building scalable full-stack solutions using Java, Angular, REST APIs, Kafka, and cloud-native technologies in a hybrid work model. Candidates should have strong backend and frontend experience, knowledge of microservices architecture, and familiarity with DevOps and Agile practices. 🗂️ Requirements: Minimum 2 years of front-end experience, At least 5 years of Java development experience, Experience with microservices architecture, Knowledge of event sourcing architecture patterns, Hands-on experience with Angular, Hands-on experience with Spring Framework, Hands-on experience with Docker, Hands-on experience with Kubernetes, Hands-on experience with REST APIs, Hands-on experience with Kafka, Hands-on experience with MQ, Hands-on experience with SQL, Familiarity with Jenkins, Familiarity with ArgoCD, Understanding of XML, Understanding of JSON, Understanding of Avro, Experience with Git, English proficiency at B2 level, Experience working in Agile/Scrum environments 📃 Skills: Java, Angular, Spring, Docker, Kubernetes, REST, Kafka, MQ, SQL, Jenkins, ArgoCD, XML, JSON, Avro, Git 🏢 Description: Industry: banking Location: Hybrid - 3 days per week form office in Gdańsk, Gdynia, Warsaw or Łódź Rate: up to 165 pln/h on b2b Overview We are seeking a Full-stack Developer who will be instrumental in the development and maintenance of microservices. The role requires a combination of technical skills and collaboration with various stakeholders to achieve optimal solutions. Main Responsibilities Design and develop a full-stack application. Integrate existing applications with the Cards target platform. Implement translation/routing mechanisms from old to new systems. Develop microservices using Angular, REST APIs, and integrate with KAFKA/MQ/Oracle DB. Ensure application quality and responsiveness. Collaborate with internal and external stakeholders. Key Requirements Minimum 2 years of front-end experience. At least 5 years of Java Software Development experience. Practical knowledge of event sourcing architecture patterns and microservices architecture. Hands-on experience with Angular, Spring Framework, Docker, Kubernetes, REST, Kafka, MQ, SQL. Familiarity with DevOps tools such as Jenkins and Argo CD. Understanding of data standards, including XML, JSON, Avro. Experience with Kafka streaming platform. Version control tools like GIT. Proficiency in English (minimum B2 level). Experience with Agile/Scrum methodologies. Nice to Have Building distributed, highly scalable and high throughput applications.

🏢 Summary: Full-stack Developer role focused on building and maintaining microservices and integrating applications within a banking environment. The position involves developing full-stack solutions using Java and Angular, working with event-driven architectures, and collaborating with stakeholders in a hybrid work model. The offer includes B2B cooperation with a rate up to 165 PLN/h. 🗂️ Requirements: Minimum 2 years of front-end experience, At least 5 years of Java development experience, Experience with event sourcing and microservices architecture, Hands-on experience with Angular, Hands-on experience with Spring Framework, Hands-on experience with Docker, Hands-on experience with Kubernetes, Hands-on experience with REST APIs, Hands-on experience with Kafka, Hands-on experience with MQ, Hands-on experience with SQL, Familiarity with Jenkins, Familiarity with ArgoCD, Understanding of XML, Understanding of JSON, Understanding of Avro, Experience with Git, English proficiency at B2 level or higher, Experience with Agile/Scrum 📃 Skills: Java, Angular, Spring, Docker, Kubernetes, REST, Kafka, MQ, Oracle, SQL, Jenkins, ArgoCD, XML, JSON, Avro, Git 🏢 Description: Industry: banking Location: Hybrid - 3 days per week form office in Gdańsk, Gdynia, Warsaw or Łódź Rate: up to 165 pln/h on b2b Overview We are seeking a Full-stack Developer who will be instrumental in the development and maintenance of microservices. The role requires a combination of technical skills and collaboration with various stakeholders to achieve optimal solutions. Main Responsibilities Design and develop a full-stack application. Integrate existing applications with the Cards target platform. Implement translation/routing mechanisms from old to new systems. Develop microservices using Angular, REST APIs, and integrate with KAFKA/MQ/Oracle DB. Ensure application quality and responsiveness. Collaborate with internal and external stakeholders. Key Requirements Minimum 2 years of front-end experience. At least 5 years of Java Software Development experience. Practical knowledge of event sourcing architecture patterns and microservices architecture. Hands-on experience with Angular, Spring Framework, Docker, Kubernetes, REST, Kafka, MQ, SQL. Familiarity with DevOps tools such as Jenkins and Argo CD. Understanding of data standards, including XML, JSON, Avro. Experience with Kafka streaming platform. Version control tools like GIT. Proficiency in English (minimum B2 level). Experience with Agile/Scrum methodologies. Nice to Have Building distributed, highly scalable and high throughput applications.

🏢 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 in the banking industry focused on rebuilding collateral data streams within a Data Products initiative. The position supports data mesh practices and requires developing and analyzing classical solutions while collaborating closely with the team. Hybrid work model with B2B contract and competitive hourly rate. 🗂️ Requirements: 5+ years of hands-on Java development experience, Experience developing and analyzing backend solutions, Experience working according to the four-eyes principle, Ability to collaborate effectively within a development team, Fluent spoken and written English 📃 Skills: Java, Data, English 🏢 Description: Location: hybrid - 3 days per week from Gdańsk office Industry: banking Rate: 140-165 pln/h netto + VAT, B2B Summary: The role of the Senior Java Developer is essential for contributing to the Data Products, focusing on rebuilding collateral data streams to enhance product functionality and support data mesh practices. Main Responsibilities: Develop and analyze classical solutions within the Data Products initiative. Collaborate with team members to ensure effective execution of tasks. Maintain adherence to the four-eyes principle in development processes. Respond and adapt quickly to evolving project requirements. Communicate effectively in English, both spoken and written. Key Requirements: Five years of hands-on experience in Java development. Strong ability to collaborate effectively with other team members. Experience working according to the four-eyes principle. Adaptable and responsive to change. Fluent in spoken and written English. Nice to Have: Experience from the banking or finance industry. Technical sparring partner support and ability to engage colleagues in discussions.

🏢 Summary: B2B opportunity for an experienced Java Developer to build a greenfield loan system (STP) in the banking sector. The role focuses on developing a robust Spring Boot–based platform, integrating via REST and Kafka, and shaping architecture and technical decisions in an Agile environment. Hybrid work model with regular collaboration in Gdańsk. 🗂️ Requirements: 8+ years of commercial experience with Java (version 21+), 8+ years of experience with Spring Boot, 8+ years of experience with JPA, Proficiency with Maven, Experience with Liquibase for database versioning, Experience with REST API integration, Experience with Kafka event streaming, Professional working proficiency in English 📃 Skills: Java, SpringBoot, JPA, Maven, Liquibase, Kafka, REST, Cucumber 🏢 Description: General info: - Industry: banking - Work model: hybrid (min. 2 days in office in Gdańsk) - Rate: 140-160/h net + vat B2B We are seeking experienced Java Developers to join our innovative project, called STP, focusing on a loan system. This exciting greenfield initiative allows you to shape a system from the ground up, supported by a dedicated and engaged business team. Main Responsibilities: Develop and maintain a robust Java platform using Spring Boot Integrate with surrounding systems through REST APIs and Kafka-based event streaming Ensure clean architecture, maintainable code, and clear ownership Utilize AI-assisted development tools to enhance productivity Collaborate closely with Business SMEs and the Product Owner Work in an Agile environment, promoting high levels of collaboration and continuous improvement Participate in solution design and influence technical decisions Key Requirements: Java 21+, with 8+ years of experience Spring Boot, with 8+ years of experience JPA, with 8+ years of experience Maven proficiency Liquibase for database change versioning Nice to Have: Cucumber for testing Other Details: This role is based in Gdańsk, Poland, and requires collaboration in English. Expect a dynamic Agile setup with an emphasis on shared understanding and collaborative solution design.

🏢 Summary: Senior/Expert Java Integration Developer role for a long-term banking transformation project focused on backend integrations, Java microservices, and modernization of Safekeeping and Corporate Actions platforms. The position involves building and enhancing integrations using Spring Boot, REST APIs, Kafka, and IBM MQ within an international Scrum environment. Hybrid B2B cooperation in Warsaw or Gdańsk with potential project extension. 🗂️ Requirements: 5+ years of commercial Java backend development experience, Strong Java knowledge, Experience with Spring Boot, Experience with Spring Integration, Experience with REST APIs, Experience with microservices, Strong SQL skills, Experience with relational databases, Experience with Oracle, Experience with Kafka and/or IBM MQ, Knowledge of Maven, Knowledge of Git, Experience with CI/CD pipelines, Experience with JUnit, Experience with Testcontainers, Experience analyzing production issues and integrations, Professional English 📃 Skills: Java, Spring, SpringBoot, SpringIntegration, REST, Microservices, SQL, Oracle, Kafka, IBMMQ, Maven, Git, CI/CD, JUnit, Testcontainers, Scrum 🏢 Description: Location: Warsaw or Gdańsk (hybrid – 2–3 days per week in the office) Contract: B2B Rate: up to 165 PLN/h Project duration: August 2026 – January 2027 (with possible extension) Language: English (Professional) Open positions: 2 About the Project For an international client from the banking sector, we are looking for an experienced Senior / Expert Java Integration Developer to join a growing engineering team responsible for developing and modernising backend integration components supporting Safekeeping and Corporate Actions platforms. The project is undergoing significant expansion as part of a long-term strategic transformation, including migration of business processes and increased transaction volumes. You will participate in redesigning existing integrations, building modern Java microservices, and integrating critical banking systems. You'll join an experienced Scrum team working in a collaborative international environment with architects, analysts, QA engineers, and infrastructure specialists. Your Responsibilities - Design, develop and maintain Java-based backend applications and integration services - Develop modern microservices using Spring Boot - Build and enhance integrations between banking systems using REST APIs, Kafka and IBM MQ - Participate in application architecture improvements and legacy modernization - Analyze business requirements, technical documentation and system dependencies - Support deployment planning and production issue investigation - Develop automated unit and integration tests - Participate in code reviews and promote engineering best practices - Collaborate with international Agile/Scrum teams Must Have - 5+ years of commercial experience in Java backend development (10+ years for Expert level) - Strong knowledge of Java and Spring Boot - Experience with Spring Integration - Practical experience with REST APIs and microservices - Strong SQL skills and experience with relational databases (Oracle preferred) - Experience with Kafka and/or IBM MQ - Maven, Git and CI/CD pipelines - JUnit and Testcontainers - Experience analyzing production issues, logs, integrations and system flows - Professional level English Nice to Have - Banking or capital markets experience - Experience with custody, settlement or corporate actions platforms - Kubernetes and containerized applications - Cloud-native application design - Test automation and static code analysis - Experience with AI-assisted development tools - Experience building applications integrated with Kafka What We Offer - International banking project - Modern technology stack and large-scale enterprise systems - Opportunity to influence architecture and modernization initiatives - International Scrum environment - Competitive B2B rate - Stable cooperation with the possibility of project extension - Hybrid work model (Warsaw or Gdańsk)

🏢 Summary: Development and modernization of Java-based applications for pension and savings products, focusing on taxation, account management, and investment processing. The role includes upgrading systems to Java 17+ and Spring Boot 3.3.x, building calculation engines compliant with multi-country tax regulations, and integrating with external authorities. Full involvement in the software development lifecycle from design to deployment is required. 🗂️ Requirements: Strong proficiency in Java, Experience with Spring Boot and Spring framework, Experience with Hibernate, Experience upgrading applications to Java 17+ and Spring Boot 3.x, Experience with relational databases, Strong SQL knowledge, Experience with PostgreSQL, Knowledge of OpenAPI and AsyncAPI, Experience with messaging systems, Familiarity with Git, Experience with CI/CD pipelines, Understanding of OOP principles, Knowledge of design patterns 📃 Skills: Java, Spring, SpringBoot, Hibernate, SQL, PostgreSQL, OpenAPI, AsyncAPI, JMS, MQ, Git, CI/CD, OOP, DesignPatterns 🏢 Description: Location: hybrid in Warsaw, Gdynia or Gdańsk (3 days per week from office) Rate: up to 160 pln/h on b2b Tech stack: Java 21, Spring Boot, Postgres SQL, Messaging protocols such as JMS, MQ Summary: This role focuses on developing and enhancing Java-based applications related to taxation, account management, and investment processing for pension and savings products, ensuring compliance with regulations. Main Responsibilities: Upgrade applications to at least Java 17 and Spring Boot 3.3.x, with experience in upgrade projects. Design, develop, and maintain Java applications for savings and investment products. Build robust calculation engines for compliance with tax regulations across multiple countries. Develop support for complex business processes, integrating with tax authorities, and generating customer-facing reports. Participate in the full software development lifecycle: requirements analysis, design, coding, testing, and deployment. Collaborate with financial analysts to translate requirements into technical solutions. Key Requirements: Strong proficiency in Java and related frameworks (Spring boot, Spring, Hibernate, etc.) Experience with relational databases and SQL (PostgreSQL, etc.) Knowledge of OpenAPI and AsyncAPI for producing and consuming data Familiarity with version control systems (Git) and CI/CD pipelines Understanding of software design patterns and object-oriented programming principles Nice to Have: Familiarity with financial products and services.

🏢 Summary: Long-term hybrid role for a Senior Java Developer on a banking CRM project focused on building and evolving scalable microservices in a distributed, event-driven architecture. The position involves backend development, REST and SOAP integrations, Kafka-based messaging, and full software lifecycle ownership including production deployments. You will contribute to architectural decisions and work with modern technologies in a stable banking environment. 🗂️ Requirements: 5+ years of experience as a Java Developer, Strong knowledge of Java, Strong knowledge of Spring Boot / Spring Framework, Hands-on experience with microservices architecture, Experience designing and building REST APIs, Practical experience with Kafka or similar messaging systems, Solid understanding of SQL, Experience with PostgreSQL and Hibernate, Experience with CI/CD tools, Experience with Docker, Experience with Kubernetes, Proficiency with Git 📃 Skills: Java, Spring, SpringBoot, PostgreSQL, Hibernate, Kafka, REST, SOAP, Groovy, Docker, Kubernetes, Jenkins, Git, SQL, Microservices 🏢 Description: Senior Java Developer (Banking / CRM) Warsaw (hybrid – 1 day per week in the office About the project You will join a long-term project for a banking client focused on building and evolving a modern CRM system. You’ll work on scalable backend services, API design, and system integrations in a distributed environment. The role involves working with event-driven architecture (Kafka) as well as REST and SOAP integrations, with ownership across the full software lifecycle – from development to production deployments. Tech stack Java 21 Spring Boot 3 PostgreSQL Hibernate Kafka REST / SOAP Groovy Docker / Kubernetes Jenkins Git Responsibilities Design and develop microservices in a distributed architecture Build and maintain REST and SOAP APIs Work with Kafka (topics, consumers, event-driven systems) Integrate with internal and external banking systems Participate in production deployments and application support Collaborate with business and technical stakeholders Contribute to architectural decisions (DDD, microservices) Requirements 5+ years of experience as a Java Developer Strong knowledge of Java and Spring (Boot / Framework) Hands-on experience with microservices architecture Experience designing and building REST APIs Practical experience with Kafka or similar messaging systems Solid understanding of SQL and PostgreSQL (Hibernate) Experience with CI/CD tools (e.g. Jenkins) Experience with Docker and Kubernetes Proficiency with Git Nice to have Experience in banking / financial services Knowledge of Domain Driven Design (DDD) Familiarity with Groovy Experience with SOAP integrations What we offer Long-term project in the banking sector Work with modern architecture (microservices + event-driven) Real impact on technical decisions and system design Hybrid work model (1 day per week in Warsaw office) Stable and collaborative environment

🏢 Summary: Contract role in banking focused on modernizing a legacy corporate banking system into a new digital platform. The position involves developing new features, building and maintaining APIs, and working within a SAFe Agile team to improve customer experience and operational efficiency. Hybrid work model with competitive B2B rate. 🗂️ Requirements: Minimum 6 years of hands-on Java development experience, Experience in building API solutions, Experience with reactive programming, Working knowledge of Spring framework, Working knowledge of Hibernate, Working knowledge of Cucumber, Proficiency in SQL, Experience with REST services, Experience with Microservices architecture, Proficiency with Git, Understanding of SOLID principles, Knowledge of design patterns, Experience working in SAFe Agile environment 📃 Skills: Java, Spring, Hibernate, Cucumber, SQL, REST, Microservices, Git, SOLID, DesignPatterns, SAFe, Reactive 🏢 Description: Industry: Banking Rate: up to 160 pln/h on b2b Location: Hybrid form Warsaw, Gdańsk or Gdynia (3 days per week from office) Summary: The main purpose of this role is to be part of a team responsible for the modernization of banking software, specifically transitioning from a legacy system to a new digital platform for corporate clients. This initiative aims to enhance customer service and improve operational efficiency. Responsibilities: Develop new features and improvements for the corporate banking platform. Collaborate with developers, product owners, architects, analysts, and QA teams. Build and maintain APIs for enhanced customer experience. Ensure compliance with banking services and maintenance requirements. Participate in agile ceremonies and follow SAFE Agile principles. Key Requirements: Minimum 6 years of hands-on experience in Java development. Experience in building API solutions. Familiarity with reactive programming methodologies. Working knowledge of Spring, Hibernate, and Cucumber framework. Proficiency with SQL, REST, Microservices, and GIT. Understanding of SOLID principles and design patterns. Fluency in English. Nice to Have: 2 years experience with Angular. Ability to conduct unit tests using Jasmine.