Java & React Full Stack Developer – Cloud & Data Projects

🏢 Summary: Full Stack Java & React role focused on migrating banking reporting platforms to the cloud and building scalable web applications within a microservices architecture. The position involves cloud transformation, REST API development, and collaboration in an agile, cross-country environment. It combines backend, frontend, cloud, and DevOps responsibilities in a financial domain context. 🗂️ Requirements: 3+ years experience in full-stack web application development, Experience with microservices architecture, Proficiency in Java 17+, Strong knowledge of Spring and Spring Boot, Experience in RESTful API development, Experience with ReactJS, Proficiency in JavaScript and TypeScript, Hands-on experience with Google Cloud Platform, Experience with relational databases or data warehouses, Experience with Git and SCM systems, Understanding of CI/CD pipelines, Knowledge of Jenkins 📃 Skills: Java, Spring, SpringBoot, REST, ReactJS, JavaScript, TypeScript, GCP, PostgreSQL, BigQuery, AlloyDB, Git, GitHub, Jenkins, CI/CD, Microservices, ApacheECharts 🏢 Description: Unleash innovation at the intersection of cloud, data, and full-stack development — shape the future of banking technology! Krakow-based opportunity with hybrid work model (up to 3 days remote per week). As a Java & React Full Stack Developer , you will be working for our client, a leading global financial institution, supporting the transformation of their data and reporting systems within the International Wealth & Premier Banking division. You will be instrumental in migrating critical reporting platforms to the cloud and developing scalable, web-based applications that enhance decision-making and operational efficiency. Join a dynamic team committed to technological excellence and career growth in the finance sector. Your main responsibilities: Independently design, develop, test, and deploy web applications in a collaborative, cross-country environment. Support the migration of existing reporting systems to cloud-based platforms, ensuring seamless transition and minimal disruption. Mentor and guide team members, facilitating knowledge transfer and best practices for technology stack evolution. Ensure development adherence to IT methodologies, security standards, and documentation requirements. Work in an agile environment to deliver high-quality features aligned with client needs. You're ideal for this role if you have: 3+ years of experience in delivering large-scale full-stack web applications with microservice architecture. Strong proficiency in Java (Java 17+ preferred), Spring/Spring Boot, and RESTful API development. Expertise in ReactJS, JavaScript, and TypeScript. Hands-on experience with Google Cloud Platform products. Working knowledge of relational databases/data warehouses such as PostgreSQL, BigQuery, or AlloyDB. Experience with Git and SCM systems like GitHub. Knowledge of data visualization tools (e.g., Apache ECharts) is an advantage. Understanding of CI/CD pipelines, particularly Jenkins. It is a strong plus if you have: Certifications or experience in cloud architecture or DevOps practices. We offer you: ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: Stable and long-term cooperation with very good conditions Enhance your skills and develop your expertise in the financial industry Work on the most strategic projects available in the market Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years Participation in Social Events, training, and work in an international environment Access to an attractive Medical Package Access to Multisport Program #GETREADY Internal job ID #8678 You can report violations in accordance with ITDS’s Whistleblower Procedure available here .

🏢 Summary: Hybrid FullStack Developer role focused on building and maintaining scalable international banking applications using Java and Angular technologies. The position involves developing credit systems, contributing to microservices architecture, and collaborating across global teams in an Agile environment. 🗂️ Requirements: 3+ years experience as FullStack Developer, Java 11+ and JDK 8+ experience, Experience with Hibernate, Experience with JUnit, Experience with Spring Boot, Experience with Spring Batch, Experience with Spring Security, Experience with RESTful microservices, 2-3+ years experience with Angular 8+, Experience with TypeScript, Experience with JavaScript, Experience with HTML, Experience with CSS, Experience with SQL and PL/SQL, Experience with Oracle databases, Understanding of Agile methodologies, Knowledge of APIs and microservices architecture, Experience with Jenkins and CI/CD, Fluent English, Legal right to work in the European Union 📃 Skills: Java, Angular, Hibernate, JUnit, Spring, SpringBoot, SpringBatch, SpringSecurity, REST, Microservices, JSON, XML, TypeScript, JavaScript, HTML, CSS, SQL, PLSQL, Oracle, Agile, API, Jenkins, CI/CD 🏢 Description: Unleash innovation at the intersection of finance and technology - shape the future of international banking! Warsaw or Krakow-based opportunity with a hybrid work model, offering 4 remote days per week. As a FullStack Developer - Java & Angular , you will be working for our client, a leading European bank that operates across 72 countries and is driving a cutting-edge tech revolution. Join a new, state-of-the-art hub dedicated to developing critical banking systems for global organizations, pushing the boundaries of financial technology and innovation. Your main responsibilities: Develop and design highly scalable credit applications to support international banking operations Analyze user requirements, develop specifications, and design, code, test, and implement systems aligned with group standards and regulatory requirements Handle development and design projects with proactive estimation, planning, and status reporting to management across locations in Paris/India and ISPL Follow best practices and quality processes for software development Work independently on assigned tasks, with potential mentoring of team members on technical and functional topics Contribute to code reviews and ensure the ongoing maintenance and refactoring of applications Ensure seamless application maintenance and continuous improvement of code quality You're ideal for this role if you have: At least 3 years of experience as a FullStack Developer Strong background in Java 11+ (project currently runs on Java 17), JDK 8+, Hibernate, JUnit, Spring Framework (Boot, Batch, Security), and RESTful microservices (minimum 2-3 years) Proven expertise in Angular 8+ (preferably Angular 14), JSON, XML, TypeScript, JavaScript, HTML, CSS (minimum 2-3 years) Experience working with SQL and PL/SQL, Oracle databases Good understanding of Agile methodologies, web services, APIs, and micro-services architecture Knowledge of DevOps principles & tools such as Jenkins for CI/CD pipelines Excellent communication skills with a high level of soft skills Fluent English proficiency It is a strong plus if you have: Banking or financial industry experience and domain knowledge Language required for the role: Fluent English Eligibility to work on this role: Only candidates with an existing legal right to work in the European Union will be considered for this role.

🏢 Summary: Hybrid FullStack Developer role focused on building scalable credit applications for international banking systems using Java and Angular technologies. The position involves full software development lifecycle responsibilities, collaboration across global teams, and maintaining high-quality banking applications in an Agile environment. 🗂️ Requirements: 3+ years of experience as a FullStack Developer, Experience with Java 11+ and JDK 8+, Knowledge of Hibernate, JUnit, Spring Boot, Spring Batch, Spring Security, Experience with RESTful microservices, Experience with Angular 8+, Knowledge of TypeScript, JavaScript, HTML, CSS, JSON, XML, Experience with SQL, PL/SQL, and Oracle databases, Understanding of Agile methodologies, Knowledge of APIs and micro-services architecture, Experience with Jenkins and CI/CD pipelines, Fluent English, Legal right to work in the European Union 📃 Skills: Java, Angular, Hibernate, JUnit, Spring, SpringBoot, SpringBatch, SpringSecurity, REST, Microservices, TypeScript, JavaScript, HTML, CSS, JSON, XML, SQL, PLSQL, Oracle, Agile, APIs, Jenkins, CI/CD 🏢 Description: Unleash innovation at the intersection of finance and technology - shape the future of international banking! Warsaw or Krakow-based opportunity with a hybrid work model, offering 4 remote days per week. As a FullStack Developer - Java & Angular, you will be working on developing critical banking systems for global organizations, contributing to a cutting-edge technology hub focused on financial innovation. Main responsibilities: - Develop and design highly scalable credit applications to support international banking operations - Analyze user requirements, develop specifications, and design, code, test, and implement systems aligned with group standards and regulatory requirements - Handle development and design projects with proactive estimation, planning, and status reporting to management across locations in Paris/India and ISPL - Follow best practices and quality processes for software development - Work independently on assigned tasks, with potential mentoring of team members on technical and functional topics - Contribute to code reviews and ensure the ongoing maintenance and refactoring of applications - Ensure seamless application maintenance and continuous improvement of code quality Requirements: - At least 3 years of experience as a FullStack Developer - Strong background in Java 11+ (project currently runs on Java 17), JDK 8+, Hibernate, JUnit, Spring Framework (Boot, Batch, Security), and RESTful microservices (minimum 2-3 years) - Proven expertise in Angular 8+ (preferably Angular 14), JSON, XML, TypeScript, JavaScript, HTML, CSS (minimum 2-3 years) - Experience working with SQL and PL/SQL, Oracle databases - Good understanding of Agile methodologies, web services, APIs, and micro-services architecture - Knowledge of DevOps principles & tools such as Jenkins for CI/CD pipelines - Excellent communication skills with a high level of soft skills - Fluent English proficiency Nice to have: - Banking or financial industry experience and domain knowledge Eligibility: - Only candidates with an existing legal right to work in the European Union will be considered for this role.

🏢 Summary: Full Stack Developer role focused on building scalable backend services in Java and modern, responsive front-end applications in React.js. The position involves designing RESTful APIs, collaborating with cross-functional teams, and delivering clean, maintainable, high-quality code in a hybrid work model. 🗂️ Requirements: Commercial experience with Java, Experience with Spring Boot framework, Strong knowledge of React.js, Proficiency in modern JavaScript, Experience designing and consuming RESTful APIs, Experience with relational or non-relational databases, Experience with version-controlled collaborative development, Availability to work onsite in hybrid model (Cracow) 📃 Skills: Java, SpringBoot, React, JavaScript, REST, SQL, NoSQL, AWS, Azure, GCP, Docker, Kubernetes, CICD 🏢 Description: 𝗪𝗲 𝗔𝗿𝗲 𝗛𝗶𝗿𝗶𝗻𝗴: 𝗝𝗮𝘃𝗮 𝗮𝗻𝗱 𝗥𝗲𝗮𝗰𝘁.𝗷𝘀 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 We are currently seeking a skilled and motivated Full Stack Developer with strong expertise in Java and React.js to join our growing team. In this role, you will be responsible for designing and developing scalable backend services using Java, as well as building modern, responsive user interfaces using React.js. You will work closely with cross-functional teams to deliver high-quality, reliable solutions, while ensuring that your code is clean, maintainable, and efficient. 𝗞𝗲𝘆 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀: Developing robust backend applications using Java, ideally with Spring Boot Creating intuitive and high-performing front-end applications using React.js and modern JavaScript Designing and consuming RESTful application programming interfaces Collaborating with colleagues across engineering, product, and design teams Contributing to code reviews and continuous improvement practices 𝗪𝗲 𝗮𝗿𝗲 𝗹𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿 𝗰𝗮𝗻𝗱𝗶𝗱𝗮𝘁𝗲𝘀 𝘄𝗵𝗼 𝗵𝗮𝘃𝗲: Proven experience working with Java and related frameworks Strong knowledge of React.js and modern JavaScript standards Experience working with relational or non-relational databases A proactive approach to problem-solving and a strong attention to detail Excellent communication and teamwork skills It would be beneficial if you also have: Experience working with cloud platforms such as Amazon Web Services, Microsoft Azure, or Google Cloud Platform Exposure to continuous integration and continuous delivery pipelines Familiarity with containerisation technologies such as Docker and Kubernetes 📍 𝗟𝗼𝗰𝗮𝘁𝗶𝗼𝗻: Cracow, Poland (Hybrid – 3 days per week onsite) 💼 𝗘𝗺𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 𝗧𝘆𝗽𝗲: B2B If you are passionate about building impactful technology and are looking to take the next step in your career, we would be delighted to hear from you. Please apply or get in touch directly for more information.

🏢 Summary: Mid-level Java Full Stack Developer role focused on building and maintaining secure, mission-critical financial communication systems integrated with SWIFT services. The position emphasizes backend development with Java and Spring while contributing to frontend applications using React or Angular in a microservices architecture. The project involves developing REST APIs, processing financial messages, and working within an enterprise Agile environment. 🗂️ Requirements: 3–4 years of commercial software development experience, Strong proficiency in Java, Strong proficiency in Spring framework, Experience with React or Angular, Experience building REST APIs, Knowledge of HTTPS, SFTP, SOAP protocols, Understanding of microservices architecture, Understanding of containerization, Experience with Git and GitHub, Experience with Jenkins, Experience with Maven, Experience with Jira, Knowledge of SQL and MySQL, Familiarity with Linux environments 📃 Skills: Java, Spring, React, Angular, REST, HTTPS, SFTP, SOAP, Microservices, Containerization, Git, GitHub, Jenkins, Maven, Jira, SQL, MySQL, Linux 🏢 Description: Java Full Stack Developer (Mid Level) | Java + React.js / Angular 📍 Location: Warsaw, Poland 💼 Work Model: Hybrid ( 2 days/week onsite – mandatory) We are looking for a skilled Mid-Level Java Full Stack Developer to join an international Enterprise SWIFT team working on mission-critical financial communication solutions for a global client. This role is ideal for engineers who enjoy backend-focused development while also contributing to modern frontend applications using React.js or Angular. 🔹 Project Overview You will work on secure enterprise integrations connected with SWIFT Alliance Cloud, building and enhancing systems responsible for message transmission, transformation, routing Key responsibilities include: • Developing REST APIs and backend services using Java & Spring • Integrating with SWIFT Alliance Cloud protocols and services • Processing and transforming financial messages/files • Building scalable microservices-based solutions • Supporting frontend development in React.js or Angular • Collaborating closely with Product, QA, DevOps, and Agile teams • Participating in code reviews, architecture discussions, and continuous improvement initiatives 🛠 Required Skills • 3–4 years of commercial experience • Strong Java & Spring expertise • Experience with React.js or Angular • Knowledge of REST API, HTTPS, SFTP, SOAP • Understanding of microservices and containerization • Experience with Git/GitHub, Jenkins, Maven, Jira • SQL & MySQL knowledge • Familiarity with Linux environments • Strong analytical and problem-solving skills ⭐ Nice to Have • Python experience • Experience in enterprise integration or banking/financial projects • Exposure to Agile/Scrum methodologies If you are a proactive Java Full Stack Engineer looking for a challenging long-term opportunity in Warsaw - we would love to connect with you.

🏢 Summary: Senior Java Full Stack Developer role focused on building and supporting scalable banking applications within a global engineering team. The position involves developing microservices-based systems, ensuring production stability, and driving digital transformation in financial services. Hybrid work model with strong emphasis on DevOps, observability, and end-to-end support. 🗂️ Requirements: 6+ years of Java and full-stack development experience, Expertise in Java 21 and Spring Boot 3.x, Experience with microservices architecture and REST APIs, Strong knowledge of React JS, Experience with PostgreSQL, Experience with messaging systems (MQ or Solace), Familiarity with Kubernetes and Redis, Experience with CI/CD and DevOps practices, Knowledge of observability and monitoring tools, Fluent English, Legal right to work in the EU 📃 Skills: Java, Spring, SpringBoot, Microservices, REST, JSON, React, PostgreSQL, MQ, Solace, Kubernetes, Redis, Grafana, Splunk, Logstash, Prometheus, Jenkins, Ansible, CI/CD, DevOps 🏢 Description: Empower financial innovation — shape the future of banking technology! Krakow-based opportunity with hybrid work model allowing up to 3 remote days per week. As a Senior Java Full Stack Developer – Banking and Financial Services , you will be working for our client, a leading global bank, contributing to the development and support of critical financial applications. You will help build robust, scalable systems that drive digital transformation in the banking sector, offering innovative solutions to complex financial challenges. Your main responsibilities: Deliver application enhancements and provide ongoing support as a key member of a global engineering team. Collaborate with business stakeholders to plan, execute, and meet project milestones. Lead the resolution of critical incidents, ensuring timely fixes and issue resolution. Own end-to-end production support, managing support requests, tickets, and queries. Diagnose, troubleshoot, and resolve application performance, stability, and usability issues. Create and maintain technical documentation, best-practice guides, and process artifacts. Continuously develop your skills through training, certifications, and practical experience. Act as a subject matter expert for system functionality, operational constraints, and best practices. Participate actively in agile delivery, identifying risks and dependencies early. You're ideal for this role if you have: 6+ years of experience in Java development and full-stack engineering. Deep expertise with Java 21, Spring Boot 3.x, microservices, REST APIs, and JSON. Strong knowledge of React JS, PostgreSQL, and messaging systems like MQ or Solace. Working familiarity with Kubernetes, Redis, and application security best practices. Exposure to observability tools and DevOps/CI/CD pipelines: Grafana, Splunk, Logstash, Prometheus, Jenkins, Ansible. Excellent written and verbal communication skills in English. Ability to work effectively across distributed teams with responsiveness and ownership. Customer-focused mindset with a passion for high-quality deliverables. Comfortable operating within a DevOps model, supporting testing, analysis, and support tasks. It is a strong plus if you have: Basic Python, shell scripting, and experience with workflow engines like Activiti. Familiarity with testing frameworks such as JMock/Mockito and Selenium. Support or development experience with workflow-based applications. Language Required for the role: Fluent English 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 Full Stack Developer role focused on building scalable Java (Spring Boot) backend services and React/TypeScript frontends to enhance financial operations and automation. The position involves leading technical initiatives, leveraging AI-assisted development tools, optimizing SQL Server databases, and managing CI/CD pipelines in Azure DevOps. The role combines hands-on development, architectural standards enforcement, and DevOps best practices in a hybrid EU-based environment. 🗂️ Requirements: 7+ years full stack development experience, Strong expertise in Java and modern frontend frameworks, Advanced proficiency in Spring Boot (Security, Data), Advanced proficiency in TypeScript and React, Hands-on experience with AI development tools (e.g., Claude Code), Deep knowledge of SQL Server and performance tuning, Experience with microservices architecture, Experience designing REST APIs, Experience with Docker and Kubernetes, Experience with Git and Azure DevOps CI/CD, Knowledge of design patterns and secure coding practices, Experience with automated testing frameworks, Fluent English (written and spoken), Legal right to work in the European Union 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, SpringData, TypeScript, React, SQLServer, TSQL, Microservices, REST, Docker, Kubernetes, Git, AzureDevOps, CI/CD, AI, Claude, Testing 🏢 Description: Elevate financial operations — craft scalable, intelligent full stack solutions that redefine efficiency! EU-based opportunity with remote work options (up to 5 days per week). As a Senior Java-React Full Stack Developer , you will be working for our client, a leader in financial services, committed to transforming the industry through innovative technology. You will design, develop, and deploy advanced solutions that enhance data accuracy, streamline transaction processing, and support automation, enabling smarter financial workflows. This role offers an exciting chance to lead technical initiatives in a hybrid environment, leveraging cutting-edge AI tools to accelerate development and maintain high standards of quality and security. Your main responsibilities: Design, develop, and deploy scalable Java backend services with Spring Boot to support financial operations and integration points. Build responsive, user-friendly interfaces using TypeScript and React, tailored for finance and operations teams. Leverage agentic AI development tools such as Claude Code or similar to accelerate feature implementation, while validating and refining AI-generated code for security and compliance. Optimize and maintain SQL Server databases, including complex queries, stored procedures, and indexing for high-volume financial workloads. Implement and manage CI/CD pipelines in Azure DevOps, ensuring reliable and efficient deployment. Lead code reviews and provide technical guidance across hybrid teams, including internal engineers, consultants, external vendors, and AI-assisted developers. Establish and enforce coding, architectural standards, and comprehensive technical documentation. Integrate solutions with existing financial systems, such as Sage Intacct, to enhance operational automation. Continuously improve application performance, scalability, and reliability within cloud environments, adapting based on real-world data. Collaborate closely with stakeholders to translate business needs into effective technical solutions. Ensure adherence to secure coding practices, design patterns, and DevOps best practices. Mentoring engineers in adopting AI-assisted development workflows and establishing code quality standards. You're ideal for this role if you have: 7+ years of professional full stack development experience, with strong expertise in Java and modern frontend frameworks. Advanced proficiency in Java (Spring Boot, Security, Data) and TypeScript/React. Hands-on experience with agentic AI development tools such as Claude Code or similar. Deep knowledge of SQL Server, including performance tuning, complex queries, and stored procedures. Solid understanding of microservices architecture, REST API design, and containerization (Docker, Kubernetes). Experience with Git, Azure DevOps CI/CD pipelines, and DevOps practices. Knowledge of software design patterns, secure coding practices, and automated testing frameworks. Excellent communication skills, capable of working effectively in a hybrid team and articulating technical concepts clearly. It is a strong plus if you have: Experience in financial services, private equity, or fund administration. Familiarity with Sage Intacct or other fund management platforms. Azure cloud services expertise. Python scripting capabilities. Experience working in Agile/Scrum environments. Exposure to agentic workflow frameworks such as LangChain or LangGraph. 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 Fullstack Engineer role focused on designing and building scalable Java and React applications in a hybrid model. The position involves architecture design, backend and frontend development, DevOps practices, and driving high-quality software delivery across the full SDLC. 🗂️ Requirements: 8+ years of experience in Java application development, Strong proficiency in Java and React, Experience in Web API development, Experience building scalable backend services, Strong SQL skills, Experience with PostgreSQL, Experience with T-SQL scripting, Experience in query optimization and performance tuning, Experience with CI/CD pipelines, Strong knowledge of SDLC 📃 Skills: Java, React, SQL, PostgreSQL, T-SQL, CI/CD, DevOps, SDLC, WebAPI, REST, DesignPatterns, UX 🏢 Description: Empower innovation at the forefront of software development — shape scalable solutions that transform user experiences! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Java & React Fullstack Engineer – Software Development , you will be working for our client, a leading technology company dedicated to delivering cutting-edge digital solutions. You’ll contribute to designing and building robust applications that enhance customer engagement and operational efficiency, fueling digital transformation and innovation. Your main responsibilities: Participate in software architecture design to ensure scalable, secure, and high-quality systems. Lead UI improvements and implement solutions to elevate UX and application stability. Develop according to best practices and Design Patterns to produce maintainable and efficient code. Analyze requirements thoroughly and recommend enhancements for optimal solutions. Create clear documentation to support ongoing development and maintenance. Develop and validate application prototypes to test concepts and user interactions. Manage changes throughout the Service Management lifecycle, supporting automation and continuous improvement initiatives. Provide exceptional customer support by promptly addressing and resolving technical issues. Communicate effectively to understand customer needs and deliver tailored solutions. You're ideal for this role if you have: 8+ years of professional experience in Java application development, including front-end (preferably React). Strong proficiency in Java, Web API development, and building scalable backend services. Solid SQL skills with PostgreSQL, including T-SQL scripting, query optimization, and performance tuning. Experience with DevOps practices such as CI/CD pipelines. Extensive knowledge of the SDLC, from requirements gathering to deployment and maintenance. Exceptional problem-solving skills and keen attention to detail to ensure high-quality deliverables and resolve complex issues efficiently. It is a strong plus if you have: (optional) Certifications in Java, React, or DevOps. Experience with cloud platforms such as AWS or Azure. Language Required for the role: Fluent English proficiency. Eligibility to work on this 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: Mid-level Fullstack Java Developer role focused on building and maintaining scalable banking applications using Java, Spring Boot, and Angular in a hybrid work model. The position involves developing high-availability microservices, collaborating across the software lifecycle, and supporting Kubernetes-based deployments in the financial sector. 🗂️ Requirements: 3+ years of experience in Java and Angular development, Knowledge of Java 17+, Experience with Spring and Spring Boot, Experience with Angular 19+, Knowledge of JavaScript, Experience with Node.js, Experience with Git, Experience with Maven or Gradle, Experience with relational databases, Understanding of scalable and highly available applications, Knowledge of software development lifecycle, Experience with testing and code reviews, English proficiency for technical documentation, Ability to work in Agile environments, Good command of Polish, Legal right to work in the European Union 📃 Skills: Java, Angular, Spring, SpringBoot, JavaScript, Node.js, Git, Maven, Gradle, SQL, Kubernetes, Microservices, Agile 🏢 Description: Ignite the future of banking systems — craft innovative, scalable solutions that transform financial services! Warsaw-based opportunity with hybrid work model (2 days in the office/month). As a Fullstack Java Developer you will be working for our client, a leading organization in the online banking sector that delivers secure, scalable, and high-performance digital financial services to millions of users. You will contribute to the development and enhancement of modern banking applications built with Java and Angular, collaborating with cross-functional teams to design reliable solutions, implement new features, and maintain highly available systems while following software engineering best practices throughout the entire development lifecycle. Your main responsibilities: Develop and maintain fullstack applications using Java and Angular Design and implement scalable and highly available software solutions Build and enhance backend services using Spring and Spring Boot Create and improve responsive frontend components with Angular Collaborate with cross-functional teams throughout the software development lifecycle Review code and follow software engineering best practices Write and maintain automated tests to ensure software quality Manage application builds and dependencies using Maven or Gradle Work with relational databases and contribute to database optimization Deploy and support applications running in Kubernetes environments Use Git for version control and collaborative development Troubleshoot and resolve application issues to ensure system reliability You're ideal for this role if you have: Bachelor's degree in Computer Science, Electronics, or a related technical field At least 3 years of commercial experience with Java and Angular development Strong knowledge of Java 17 or newer and the Spring ecosystem, including Spring Boot Practical experience with Angular 19 or newer, JavaScript, and Node.js Experience with Git and build tools such as Maven or Gradle Experience working with relational databases Understanding of software development best practices, including code reviews, testing, and the software development lifecycle Experience building or maintaining highly available and scalable applications Strong communication skills, teamwork mindset, and willingness to learn English proficiency allowing you to read and understand technical documentation Nice to have: Experience working with microservices architecture Experience with non-relational databases (nice to have)

🏢 Summary: B2B role for an experienced Full-stack Developer (Java/React) to build and maintain Data Lake, Data Warehouse and "chat with data" solutions, covering both backend services and frontend components. The position involves designing data models, building data pipelines (on-prem and GCP), optimizing SQL queries, and developing conversational web applications end-to-end. Work is performed in a DevSecOps model with responsibility for CI/CD, monitoring and production support. 🗂️ Requirements: Experience with React, Experience with Java and API development, Experience building conversational web applications (chat, streaming, history, feedback, sources), Knowledge of BigQuery and SQL, Experience in data modeling (logical and physical), Experience building data pipelines (on-prem and cloud), SQL query optimization skills, Experience with Git and code review, Experience writing unit, integration and e2e tests, Experience with CI/CD pipelines, Experience with monitoring and logging, Experience in incident handling and production support, Ability to design data-focused UI (tables, charts, drill-down, export) 📃 Skills: Java, React, SQL, BigQuery, GCP, CloudRun, PubSub, Docker, Kubernetes, Git, CI/CD, DevSecOps, APIs, DataLake, DWH 🏢 Description: Poszukujemy doświadczonego Full-stack Developera (java/react), który dołączy do zespołu rozwijającego nowoczesne rozwiązania w obszarze Data Lake, DWH oraz „chat with data”. Praca obejmuje zarówno rozwój backendu, jak i współpracę przy projektowaniu interfejsów oraz komponentów frontendowych. Oferujemy Długoterminowa współpraca w oparciu o kontrakt B2B Prywatna opieka medyczna Karta multisportowa Udział w nowoczesnych projektach Praca hybrydowa – min. 1 dzień w tygodniu w biurze (Poznań lub Warszawa) Obowiązki Budowa i rozwój rozwiązań Data Lake i Data Warehouse (online/offline) Projektowanie i implementacja procesów zasilania danych Modelowanie danych (logiczne i fizyczne) Optymalizacja zapytań SQL (on-prem i GCP) Tworzenie pipeline’ów danych (on-prem oraz chmura GCP) Rozwój narzędzia „chat with data” (end-to-end) Współpraca przy projektowaniu rozwiązań IT zgodnych z wymaganiami biznesowymi Obsługa incydentów i rozwiązywanie problemów produkcyjnych Wsparcie testów i wdrożeń Utrzymanie i serwisowanie systemów Praca w modelu DevSecOps Wymagania Znajomość frontend’u: React Doświadczenie w budowie aplikacji webowych z elementami konwersacyjnymi (chat), w tym: streaming odpowiedzi historia rozmów feedback użytkownika prezentacja źródeł i uzasadnień Doświadczenie backendowe: Java – projektowanie i rozwój usług API Podstawowa znajomość BigQuery / SQL Umiejętność projektowania ergonomicznego UI dla danych: tabele, wykresy, drill-down, eksport wyników Doświadczenie w pracy zespołowej: Git, code review, standardy jakości, dokumentacja testy (unit / integration / e2e) Doświadczenie produkcyjne: CI/CD, monitoring, logowanie reagowanie na incydenty Gotowość do współpracy z AI Engineerami i zespołami data: kontrakty API, formaty danych, walidacje, optymalizacja kosztów Mile widziane Znajomość rozwiązań typu semantic / metrics layer (caching, pre-aggregations, governance metryk) Doświadczenie z narzędziami „conversational analytics” / „chat with data” Znajomość bibliotek UI i data visualization GCP: Cloud Run, Pub/Sub Docker / Kubernetes Doświadczenie w środowisku regulowanym (np. bankowość) Ta rola nie jest dla Ciebie, ale masz znajomego, który by się sprawdził? Poleć go i zgarnij nawet 5000 zł. Referral Program: Talent from your network Nie zwlekaj i zaaplikuj już teraz! Nr ref.: 30/4/2026/r/3382