Fullstack Developer (Java+React)

🏢 Summary: Senior Fullstack Developer role focused on designing and building a greenfield application using Java 17+ and Spring Boot on the backend and React on the frontend. The position involves end-to-end development, architectural decisions, REST API design, and ensuring code quality within an Agile environment. The role also includes close collaboration with business stakeholders and participation in technical decision-making. 🗂️ Requirements: Minimum 8 years of experience with Java 17+, Minimum 5 years of experience with React, Minimum 5 years of experience with Spring Boot, Minimum 5 years of experience with JPA, Experience building fullstack applications, Practical experience designing REST APIs, Experience with relational databases, Experience working in Agile methodology, Ability to analyze business requirements technically, Very good English proficiency 📃 Skills: Java, Spring, SpringBoot, React, JPA, REST, SQL, Agile, Selenium, Liquibase, Maven, Cucumber 🏢 Description: Responsibilities: Design and development of applications in fullstack architecture (backend + frontend) Creation and development of the backend layer based on Java 17+ and Spring Boot Building and developing the user interface in React with an emphasis on UX and readability Modeling and implementation of the data access layer (JPA) Cooperation with the business team in analyzing and clarifying requirements Breaking down requirements into user stories and estimating work Designing and implementing end-to-end tests Ensuring code quality (code review, best practices, clean code) Co-creating the architecture of a greenfield project solution Collaborating in an Agile environment (refinements, sprint planning, daily, retrospectives) Participating in technological decision-making Requirements: Minimum 8 years of experience in Java programming (version 17+) Minimum 5 years of experience with: React, Spring Boot and JPA Experience in building full-stack applications (backend + frontend) Practical knowledge of REST API design Experience in working with relational databases Ability to work with business requirements and their technical analysis Experience in working with Agile methodology Very good knowledge of English (working in an international environment) Independence, proactivity, and ability to make technical decisions Nice to have: Experience with: Selenium, Liquibase for database versioning, Maven and Cucumber for testing Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program

🏢 Summary: Full-stack developer role in a greenfield project, responsible for end-to-end development from design to deployment within an Agile environment. The position involves building high-quality Angular-based UI/UX and scalable backend services using Java 17+ and JPA. The role also includes automated testing, architectural contributions, and close collaboration with business stakeholders. 🗂️ Requirements: Experience with Angular in production environments, Experience with Java 17+, Strong knowledge of modern Java features, Experience with JPA (Hibernate or similar), Experience in Agile/Scrum teams, Experience with Cucumber for automated end-to-end testing, Knowledge of Selenium for UI testing, Familiarity with Liquibase, Experience with Maven, English communication skills 📃 Skills: Angular, Java, JPA, Hibernate, Cucumber, Selenium, Liquibase, Maven, Scrum, Agile 🏢 Description: Responsibilities: End-to-end software development (greenfield project), including design, implementation, testing, and deployment. Close cooperation with the business team to gather, clarify, and translate requirements into user stories within an Agile setup. Active participation in Agile ceremonies, with strong communication and collaboration across the team (communication in English). Development of high-quality UI/UX using Angular, ensuring intuitive and user-friendly interfaces. Backend development using Java 17+ and JPA, creating scalable and maintainable business logic. Creation and maintenance of automated end-to-end tests using Cucumber and other testing frameworks. Contribution to architectural decisions, coding standards, and continuous improvement of development processes. Requirements: Experience with Angular in production environments. Experience with Java (17+) including solid understanding of modern Java features. Experience with JPA (Hibernate or similar implementations). Experience working in Agile / Scrum teams. Strong communication skills in English. Experience with Cucumber for automated end-to-end tests. Knowledge of Selenium for UI testing. Familiarity with Liquibase for database schema versioning. Experience with Maven for build and dependency management.

🏢 Summary: Fullstack Developer role in a greenfield project building a modern application from scratch in close collaboration with business stakeholders. The position involves designing and delivering scalable backend services and responsive frontend solutions in an Agile environment. You will contribute to requirement analysis, architecture decisions, and deliver fully tested end-to-end features. 🗂️ Requirements: Strong commercial experience with Java 17+ (senior level), Minimum 4 years of experience with React, Hands-on experience with Spring Boot, Good knowledge of JPA, Good knowledge of Hibernate, Experience working in Agile/Scrum teams, English proficiency at B2 level or higher 📃 Skills: Java, React, SpringBoot, JPA, Hibernate, Agile, Scrum 🏢 Description: We are launching a greenfield application built entirely from scratch in close collaboration with a dedicated business team. The project is delivered in an Agile environment with a strong focus on communication, collaboration, and high-quality software development. English is the primary working language and is used daily during meetings, workshops, and project discussions. As a Fullstack Developer, you will play a key role not only in delivering clean, scalable, and maintainable code, but also in shaping a high-quality user experience on the frontend side. You will actively contribute to requirement analysis, transforming business needs into user stories, and delivering fully tested end-to-end solutions. Responsibilities Design and develop fullstack solutions (backend and frontend) within a greenfield project Build scalable, maintainable, and high-performance backend services Develop modern, responsive, and user-friendly frontend applications Collaborate closely with business stakeholders to refine requirements and define user stories Deliver end-to-end functionalities together with automated tests Participate in Agile ceremonies, technical discussions, and planning sessions Contribute to architectural decisions and technical improvements Skills & Experience Strong commercial experience with Java 17+ (senior level) 4+ years of experience with React Hands-on experience with Spring Boot Good knowledge of JPA / Hibernate Experience working in Agile/Scrum teams English proficiency at minimum B2 level (spoken and written) Nice-to-have Skills & Experience Selenium Liquibase (database versioning) Maven Cucumber for automated testing Work Model Hybrid model: 3 days onsite / 2 days remote

🏢 Summary: The offer is for a Senior Java Backend Developer to build and evolve a greenfield lending platform as a core component of a larger ecosystem. The role focuses on developing scalable, maintainable backend services using modern Java and Spring technologies, with integrations via REST and Kafka. It involves strong ownership, clean architecture, and Agile collaboration. 🗂️ Requirements: Minimum 8 years of experience with Java backend development, Strong hands-on experience with Java 21+, Minimum 8 years of experience with Spring Boot, Minimum 8 years of experience with JPA, Practical experience with Maven, Experience with Kafka for event-driven integrations, Experience with Liquibase for database versioning, Experience with REST API design and integration, Ability to work in Agile environment, Professional proficiency in English 📃 Skills: Java, Spring, SpringBoot, JPA, Maven, Kafka, Liquibase, REST, Cucumber, GitHubCopilot, SQL 🏢 Description: Our client needs the support of an experienced Java Backend Developer to help build a brand‑new greenfield platform that will act as a central component in the wider lending ecosystem. It is developed in Java 21+ using Spring Boot and JPA, integrates with multiple surrounding systems via REST APIs and Kafka‑based event streaming, and places strong emphasis on clean architecture, scalability, maintainable code, and clear ownership. Liquibase is used for database change versioning, and AI‑assisted tools such as GitHub Copilot support day‑to‑day development. The team works in an Agile setup, closely collaborating with Business SMEs and the Product Owner, with English as the primary working language. Scope of responsibilities Build and evolve a modern backend using Java 21+ and Spring Boot Design and implement integrations with surrounding systems through REST APIs and Kafka event streaming Implement business logic and the persistence layer using JPA, with a strong focus on clean architecture and maintainable code Use Liquibase to handle database change versioning in a controlled and transparent way Leverage AI‑assisted development tools (e.g. GitHub Copilot) to improve productivity, code quality, and development flow Work as part of an Agile team, participating in planning, refinement, reviews, and continuous improvement activities Collaborate closely with Business SMEs and the Product Owner to clarify requirements and co‑design solutions Take active ownership of delivered components, ensuring their reliability, performance, and long‑term maintainability Requirements At least 8 years of experience working with Java, ideally on backend systems Strong hands-on experience with Java 21+ At least 8 years of experience with Spring Boot At least 8 years of experience working with JPA for persistence Practical experience with Maven as a build and dependency management tool Experience using Kafka for event-driven communication and integrations Experience with Liquibase for database change versioning Familiarity with Cucumber or similar tools for automated testing (nice to have) Comfortable working in an Agile team, using English as the primary working language Conditions B2B contract with an hourly rate of 130 - 170 PLN net Hybrid work model: 3 days per week on site Private medical care Life insurance Multisport card Recruitment steps Initial phone call with a recruiter (20–30 min.) Technical verification call with the client Interview with the client Final feedback and decision

🏢 Summary: Backend Java Developer role focused on building scalable, high-performance server-side applications using Spring Boot. The position involves database design, API development (REST/SOAP), search optimization with ElasticSearch, and maintaining high code quality within CI/CD environments. The role requires strong experience in the Java ecosystem and collaboration with cross-functional teams. 🗂️ Requirements: Minimum 4 years of backend development experience with Java, Strong hands-on experience with Spring Boot, Practical experience with Hibernate ORM, Experience with MS SQL databases, Experience with ElasticSearch or similar search engines, Proficiency in REST and SOAP API development, Experience working with JSON and XML, Basic knowledge of HTML, CSS, JavaScript, Experience with Git version control, Understanding of CI/CD pipelines and tools like Jenkins or TeamCity, Experience with Docker 📃 Skills: Java, Spring, SpringBoot, Hibernate, MSSQL, ElasticSearch, REST, SOAP, JSON, XML, HTML, CSS, JavaScript, Git, Jenkins, TeamCity, Docker 🏢 Description: Key Responsibilities Core Backend Development: Designing and developing robust, scalable, and high-performance server-side applications using Java and the Spring Boot framework. Database Management: Designing efficient database schemas, writing optimized queries, and managing data persistence using Hibernate and MS SQL. API Design & Integration: Building, integrating, and maintaining secure RESTful and SOAP web services (WebApi, WCF) to ensure seamless communication between systems. Search Optimization: Implementing and tuning efficient search and indexing solutions utilizing ElasticSearch. Code Quality & Mentorship: Writing clean, maintainable, and well-tested code while participating in code reviews to ensure alignment with industry best practices. Requirements Experience: Minimum 4 years of professional experience in backend development with a strong focus on the Java ecosystem. Frameworks & ORM: Deep understanding and hands-on experience with Spring Boot and Hibernate. Databases & Search: Practical knowledge of MS SQL and experience with ElasticSearch or similar search engines. Web Services & Formats: Proficiency in developing APIs (REST/SOAP) and working comfortably with JSON and XML data formats. Front-End Basics: General understanding of web technologies (HTML, CSS, JavaScript) to effectively collaborate with front-end teams. Tools & Version Control: Strong command of Git and a solid understanding of CI/CD workflows (e.g., Jenkins/TeamCity, Docker).

🏢 Summary: Oferta dla doświadczonego Fullstack Developera do projektowania i rozwoju aplikacji w architekturze Java + React w środowisku chmurowym i mikroserwisowym. Rola obejmuje budowę backendu w Spring Boot, tworzenie interfejsów w React + TypeScript oraz pracę z bazami danych, Elasticsearch i konteneryzacją. Praca w międzynarodowym środowisku z naciskiem na jakość kodu i code review. 🗂️ Requirements: Min. 5+ lat doświadczenia jako Fullstack Developer, Bardzo dobra znajomość Java, Bardzo dobra znajomość React, Bardzo dobra znajomość TypeScript, Doświadczenie z relacyjnymi bazami danych (MariaDB lub podobne), Znajomość Elasticsearch, Doświadczenie z Docker, Doświadczenie z Kubernetes, Praktyczna znajomość AWS lub GCP, Bardzo dobra znajomość języka angielskiego (min. C1) 📃 Skills: Java, Spring, React, TypeScript, MariaDB, SQL, Elasticsearch, Docker, Kubernetes, AWS, GCP, GitHub, CI/CD 🏢 Description: Zadania Projektowanie i rozwój aplikacji w architekturze fullstack (Java + React) Tworzenie i utrzymanie backendu w oparciu o Java (np. Spring Boot) Budowa nowoczesnych interfejsów użytkownika w React + TypeScript Projektowanie i optymalizacja baz danych (MariaDB) Integracja z systemami wyszukiwania (Elasticsearch) Współpraca przy projektowaniu architektury mikroserwisowej Przygotowywanie oraz utrzymanie środowisk w oparciu o Docker i Kubernetes Praca z rozwiązaniami chmurowymi (AWS lub GCP) Udział w code review oraz dbanie o jakość kodu Wymagania: Bardzo dobra znajomość języka angielskiego (min. C1) – praca w środowisku międzynarodowym Min. 5+ lat doświadczenia jako Fullstack Developer Bardzo dobra znajomość: Java (mile widziany Spring Boot) React + TypeScript Doświadczenie w pracy z bazami danych ( MariaDB lub podobne relacyjne DB ) Znajomość Elasticsearch Doświadczenie z: Docker Kubernetes Praktyczna znajomość chmury ( AWS lub GCP ) Nice to have Znajomość: Golang Node.js Doświadczenie z GitHub Actions / CI/CD

🏢 Summary: Fullstack Developer role focused on building and maintaining web applications using Java on the backend and React on the frontend. The position involves API design, database integration, and unit testing to deliver robust, high-quality software. Candidates will work across the full stack, contributing to both development and code quality processes. 🗂️ Requirements: 2+ years of Java programming experience, Strong knowledge of SQL, Experience with API definition, Proficiency in Git, Experience with JUnit testing, Proficiency in React, Proficiency in Next.js 📃 Skills: Java, React, Next.js, SQL, API, Git, JUnit 🏢 Description: Introduction & Summary: We are seeking a skilled Fullstack Developer specializing in Java and React. The ideal candidate will have over 2 years of experience in Java programming along with a solid understanding of modern frontend frameworks. The role requires proficiency in SQL and API definition, as well as experience with Git and Junit, making it essential for creating robust applications. Main Responsibilities: The Fullstack Developer will take on a pivotal role in our development team, responsible for both backend and frontend tasks. Develop and maintain web applications using Java and React. Define and implement APIs for seamless integration. Collaborate with cross-functional teams to design and deliver software solutions. Conduct unit testing to ensure high-quality code. Utilize Git for version control and collaboration. Key Requirements: 2+ years of experience in Java programming. Strong knowledge of SQL. Experience with API definition. Proficiency in Git. Experience with Junit testing. Proficient in frontend frameworks - React and Next.js. Nice to Have: Experience with Kafka and Spring Kafka (very nice to have). Some experience in microservices development. Familiarity with MongoDB. Experience with Spring Data JPA.

🏢 Summary: The offer is for a Java Backend Developer role focused on building and maintaining microservices for credit risk and scoring platforms. The position involves developing compliant calculation engines, integrating with external credit systems, and participating in the full software development lifecycle within a Scrum team. The role emphasizes high engineering standards and collaboration in a regulated financial environment. 🗂️ Requirements: Minimum 1 year experience in Java backend development, Experience with microservices-based architectures, Strong hands-on experience with Java 21+, Experience with Spring and Spring Boot, Experience with Hibernate, Experience designing and developing REST APIs, Experience designing and developing SOAP APIs, Knowledge of unit, component, and integration testing, Experience with JUnit and Mockito, Experience with Git, Experience with Maven, Experience with CI/CD environments, Knowledge of object-oriented programming, Understanding of design patterns, Understanding of SOLID principles, Fluent English communication skills 📃 Skills: Java, Spring, SpringBoot, Hibernate, JSON, XML, REST, SOAP, JUnit, Mockito, Git, Maven, Jenkins, Bitbucket, CI/CD, OOP, SOLID, SQL, Kafka, Kubernetes 🏢 Description: Responsibilities: Design, develop, and maintain Java-based microservices supporting credit risk and scoring platforms Build robust calculation engines ensuring compliance with credit scoring and recommendation regulations across multiple countries Implement and support complex business processes, including integrations with credit authorities and external systems Participate in the full software development lifecycle: requirements analysis, architecture design, development, testing, deployment, and maintenance Collaborate with business analysts and cross-functional teams to translate business needs into technical solutions Work within a Scrum team, contributing to continuous improvement and high engineering standards Requirements: Minimum 1 year of professional experience in Java backend development, preferably within microservices-based architectures Strong hands-on experience with Java 21+ and related frameworks (Spring, Spring Boot, Hibernate, JSON, XML) Proven experience designing and developing REST/SOAP APIs Solid understanding of unit, component, and integration testing (JUnit, Mockito) Familiarity with Git, Maven, and CI/CD environments (Jenkins, Bitbucket) Strong knowledge of object-oriented programming, design patterns, and SOLID principles Fluent English communication skills (spoken and written) Nice to have: Basic knowledge of SQL; experience with Kafka and Kubernetes Previous experience in the banking or financial services sector Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program

🏢 Summary: The offer is for a Senior Java Developer responsible for developing and modernising a Corporate Netbank application, including backend services and REST APIs. The role involves working with both microservices and monolithic architecture, implementing new features, fixing bugs, and supporting production in an Agile/SAFe environment. The position also requires analysing legacy code and contributing to ongoing system improvements. 🗂️ Requirements: Minimum 5 years of Java development experience, Strong experience with Java 7/8, Practical experience with Maven, Practical experience with Git, Practical experience with Spring Framework, Practical experience with Spring Boot, Good knowledge of SQL, Experience with JSP, Experience with JavaScript, Experience in writing REST APIs, Experience in backend services design and implementation, Experience with unit testing, Minimum 2 years of experience with Angular, Minimum 2 years of experience with Jasmine, Experience working in Agile environment, Willingness to analyse and maintain legacy code, Fluency in English 📃 Skills: Java, Maven, Git, Spring, SpringBoot, SQL, JSP, JavaScript, REST, Angular, Jasmine, Agile, Microservices 🏢 Description: Responsibilities: Developing, maintaining, and enhancing the Corporate Netbank application Implementing new features and improvements based on business and technical requirements Fixing bugs and supporting the resolution of production incidents Implementing compliance and mandatory business changes Designing and implementing backend services according to given specifications Writing and maintaining REST APIs Working with both microservice-based and monolithic architecture Implementing unit tests to ensure high-quality delivery Analysing and working with legacy code Collaborating with international teams in an Agile/SAFe environment Supporting the ongoing modernisation of the existing system Requirements: Minimum 5 years of experience with Java development Strong experience with Java 7/8 Practical experience with Maven, Git, Spring Framework, and Spring Boot Good knowledge of SQL Experience with JSP, JavaScript, and frontend-related development Experience in writing REST APIs Experience in backend services design and implementation Experience with unit testing Minimum 2 years of experience with Angular and Jasmine Experience working in an Agile environment Willingness to analyse, maintain, and improve legacy code Good communication skills Fluency in English Nice to have: Knowledge of SOLID principles Knowledge of design patterns Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program

🏢 Summary: Offer for an experienced Full Stack Developer to design and develop modern web applications across frontend and backend. The role focuses on building React-based user interfaces, implementing Java server-side logic, and working with PostgreSQL and Azure cloud services. It includes involvement in CI/CD processes and maintaining high code quality within an Agile environment. 🗂️ Requirements: Minimum 4–5 years of commercial experience as Full Stack Developer, Strong practical knowledge of React, Strong practical knowledge of Java, Strong practical knowledge of PostgreSQL, Experience with Azure Functions, Experience with CI/CD tools (Azure DevOps, GitHub Actions, Jenkins), Knowledge of Clean Code principles and code review standards, Experience working in Agile/Scrum methodology, English level minimum B2 📃 Skills: React, Java, PostgreSQL, Azure, AzureFunctions, CICD, AzureDevOps, GitHubActions, Jenkins, Microservices, Scrum, Agile, CleanCode 🏢 Description: Zakres obowiązków: Projektowanie, implementacja oraz rozwój nowoczesnych aplikacji webowych, obejmujących zarówno warstwę frontendową, jak i backendową, Tworzenie i rozbudowa responsywnych komponentów interfejsu użytkownika w technologii React, Programowanie wydajnej logiki serwerowej w języku Java, Projektowanie struktur danych oraz optymalizacja zapytań w środowisku bazodanowym PostgreSQL, Wdrażanie i rozwój usług opartych na technologii Azure Functions, Budowa oraz bieżące utrzymanie procesów ciągłej integracji i wdrażania (CI/CD), Ścisła współpraca w ramach interdyscyplinarnego zespołu projektowego (Developerzy, Inżynierowie QA, Architekci), Zapewnianie wysokiej jakości dostarczanego oprogramowania poprzez aktywny udział w procesach Code Review, Wymagania: Minimum 4–5 lat udokumentowanego doświadczenia komercyjnego na stanowisku Full Stack Developera, Bardzo dobra, praktyczna znajomość kluczowych technologii projektu: React (frontend), Java (backend) oraz baz danych PostgreSQL, Doświadczenie w pracy z rozwiązaniami typu serverless (Azure Functions) oraz z narzędziami do automatyzacji procesów CI/CD (np. Azure DevOps, GitHub Actions, Jenkins), Ugruntowana wiedza z zakresu dobrych praktyk inżynierii oprogramowania, w tym stosowanie zasad Clean Code, dbałość o pokrycie kodu testami oraz znajomość standardów przeglądu kodu, Doświadczenie w realizacji projektów prowadzonych w metodykach zwinnych (Agile / Scrum), Znajomość języka angielskiego na poziomie minimum B2, pozwalająca na swobodną komunikację w międzynarodowym środowisku projektowym, Mile widziane: Szersze doświadczenie w projektowaniu i optymalizacji rozwiązań w środowisku chmurowym Microsoft Azure, Znajomość oraz praktyczne doświadczenie w pracy z architekturą mikroserwisową, Udział w realizacji wysoce złożonych, skalowalnych systemów informatycznych klasy Enterprise,