Fullstack Developer (Java+React)

🏢 Summary: Fully remote Java Full Stack Developer role focused on designing and maintaining scalable web applications in the pharmaceutical domain using modern Java technologies and AWS. The position involves building RESTful APIs and microservices, developing responsive front-end interfaces, and implementing secure cloud-based solutions. The role also includes participation in architecture design, CI/CD processes, and ongoing application support. 🗂️ Requirements: Proficiency in Java 8+, Experience with Spring and Spring Boot, Experience with Hibernate, Front-end experience with Angular, React, or Vue.js, Experience building RESTful APIs, Experience with microservices architecture, Hands-on experience with AWS services, Experience with SQL and NoSQL databases, Experience with CI/CD tools, Ability to implement unit and integration testing 📃 Skills: Java, Spring, SpringBoot, Hibernate, Angular, React, Vue, HTML, CSS, JavaScript, REST, Microservices, AWS, SQL, NoSQL, Docker, Kubernetes, Jenkins, GitHubActions, GitLabCI 🏢 Description: For our client operating in the pharmaceutical industry, we are seeking a skilled Java Full Stack Developer with strong Business Technology understanding and hands-on experience with the AWS cloud platform. The ideal candidate will design, develop, and maintain scalable web applications while collaborating closely with business and technology stakeholders to deliver high-impact solutions. Work Mode : Fully remote Job Responsibilities Design, develop, and maintain full-stack applications using Java and modern web technologies Build and consume RESTful APIs and microservices Collaborate with business analysts and stakeholders to translate business requirements into technical solutions Develop responsive and user-friendly front-end interfaces Implement scalable, secure, and high-performance solutions on AWS Participate in architecture design, code reviews, and technical discussions Ensure application quality through unit testing, integration testing, and debugging Support CI/CD pipelines and DevOps best practices Troubleshoot production issues and provide ongoing application support Expectations Strong proficiency in Java (Java 8+) Experience with Spring / Spring Boot / Hibernate Front-end experience with Angular / React / Vue.js, HTML, CSS, JavaScript Experience building RESTful APIs and microservices architectures Hands-on experience with AWS services Experience with SQL and NoSQL databases Familiarity with Docker, Kubernetes (nice to have) Experience with CI/CD tools (Jenkins, GitHub Actions, GitLab CI, etc.) We Offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sound familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our goal is to provide you with stable and comfortable cooperation, contributing to your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience in creating IT solutions for over 200 organizations.

🏢 Summary: Backend Developer (Java) role focused on designing and building reliable, scalable backend services within a Digital Identity ecosystem. The position involves developing microservices, REST APIs, and event-driven solutions using modern Java and cloud-native technologies. Work is performed in an Agile environment with partial on-site presence in Łódź. 🗂️ Requirements: Minimum 7 years of experience in Java development, Proficiency in Java 21+, Experience with Spring Boot 4.x+, Experience with CI processes (e.g. Jenkins), Experience with Docker (build, optimize, debug), Practical knowledge of Kubernetes (deployments, scaling, configuration, troubleshooting), Experience in microservices architecture, Ability to design and implement REST APIs, Knowledge of event-driven architecture, Experience with Git, Experience working in Agile/Scrum, Experience designing scalable and high-performance systems, Very good English skills 📃 Skills: Java, Spring, SpringBoot, Jenkins, Docker, Kubernetes, Microservices, REST, Git, Agile, Scrum 🏢 Description: Poszukujemy doświadczonego Backend Developera (Java) , który dołączy do zespołu odpowiedzialnego za rozwój usług backendowych w obszarze Digital Identity. Rola koncentruje się na projektowaniu i budowie niezawodnych, skalowalnych serwisów , które są częścią szerszego ekosystemu związanego z tożsamością cyfrową. Lokalizacja: Łódź, przewidziana jest praca z biura 3 dni w tygodniu Zadania Aktywny udział w ceremoniach Agile oraz realizacji celów sprintów Projektowanie i implementacja wysokiej jakości rozwiązań, z pełną odpowiedzialnością za złożone funkcjonalności Wczesna identyfikacja ryzyk oraz analiza kompromisów technicznych przy proponowaniu rozwiązań Ciągłe doskonalenie jakości kodu, narzędzi oraz praktyk wytwórczych Wkład w rozwój roadmapy produktu poprzez współtworzenie historii funkcjonalnych i technicznych Promowanie oraz wspieranie dobrych praktyk inżynierskich w zespole Oczekiwania Minimum 7 lat praktycznego doświadczenia w tworzeniu aplikacji w Javie Bardzo dobra znajomość Java 21+ oraz praca z Spring Boot 4.x+ Doświadczenie z procesami Continuous Integration (np. Jenkins) Doświadczenie w pracy z Dockerem (budowanie, optymalizacja i debugowanie kontenerów) Praktyczna znajomość Kubernetes (wdrożenia, skalowanie, konfiguracja, troubleshooting) Doświadczenie w projektowaniu i rozwijaniu systemów w architekturze mikroserwisowe Umiejętność projektowania oraz implementacji REST API Znajomość architektury zdarzeniowej (event‑driven) Praktyczna znajomość systemu kontroli wersji Git Doświadczenie w pracy w metodykach Agile / Scrum Doświadczenie w projektowaniu rozwiązań z myślą o skalowalności i wysokiej wydajności Nastawienie na dostarczanie wysokiej jakości rozwiązań oraz chęć dzielenia się wiedzą i dobrymi praktykami Bardzo dobra znajomość języka angielskiego Mile widziane: Doświadczenie z Amazon Web Services (AWS) Znajomość service mesh (np. Istio),  Distributed tracing (np. Jaeger), Event streaming (Kafka), OAuth2 / OpenID Connect Doświadczenie z obsługą tokenów JWT Znajomość zagadnień związnych z bezpiecznym programowaniem ( np. OWASP Top 10) Znajomość EUDI Wallet Oferujemy Stałe wsparcie osobistego agenta , dbającego o Twoją ciągłość projektową, kontakt z klientem, niezbędne formalności, komfort pracy oraz rozwój, Career Development Program – doradztwo w planowaniu kariery w oparciu o najnowsze trendy i potrzeby rynku IT, obejmujące m.in . konsultacje z agentami i mentorami kariery , Dostęp do 7N Learning & Development – platformy rozwojowo-edukacyjnej z webinarami, biblioteką artykułów i raportów branżowych oraz regularnymi zaproszeniami na jednorazowe i cykliczne wydarzenia rozwojowe – techniczne, biznesowe oraz life-stylowe, Spektakularne eventy integracyjne , zarówno dla Ciebie (np. coroczny wyjazd Kick-Off , imprezy świąteczne czy sportowe Letnie Igrzyska), jak i dla Twoich bliskich (np. pikniki rodzinne, premiery filmowe), Rozwój zawodowy nie tylko podczas projektu – możesz zaangażować się w przekazywanie wiedzy innym w ramach oferty 7N Services kierowanej do klientów 7N, Relacje i dostęp do wiedzy najbardziej doświadczonych ekspertów IT na rynku – średni staż zawodowy naszego Konsultanta w Polsce to ponad 10 lat. Pakiet benefitów zaplanowany od A do Z , czyli dofinansowanie do opieki medycznej, ubezpieczenia na życie, karty sportowej dla Ciebie i Twoich bliskich, a także zniżki do sklepów w Polsce i za granicą. o 7N Ciągłe poszukiwanie projektów, trudne negocjacje stawek, brak wsparcia w rozwoju – brzmi znajomo? W 7N zyskujesz nie tylko stabilność kontraktów, ale też zaangażowanie osobistego opiekuna dbającego o Twój komfort zawodowy i stały dostęp do inicjatyw rozwojowych. Naszym celem jest zapewnienie Ci stabilnej i komfortowej współpracy, która przyczyni się do sukcesu Twojego jako eksperta IT oraz naszych klientów. Budujemy trwałe relacje, bazując na skandynawskich wartościach i 30-letnim doświadczeniu w tworzeniu rozwiązań IT dla ponad 200 organizacji.

🏢 Summary: The role involves developing and maintaining cloud-native, microservices-based backend systems in Java for innovative pharmaceutical solutions, with a strong AI-first approach. The position focuses on building REST APIs, applying AI tools to enhance development processes, and contributing to high-quality, scalable healthcare platforms in a fully remote setup. 🗂️ Requirements: Minimum 5 years of experience with Java 17+, Strong knowledge of JVM internals, concurrency, and memory management, Strong knowledge of Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Proven experience in designing and developing microservices-based applications, Experience with AI/LLM coding tools (e.g., Copilot, Cursor), Ability to use AI agents for test and documentation automation, Experience with AWS cloud services, Experience with observability tools (Grafana, OpenTelemetry, DataDog), Fluency in English and Polish, Residing in Poland 📃 Skills: Java, Spring, SpringBoot, SpringMVC, SpringDataJPA, SpringSecurity, JVM, Microservices, REST, AWS, Grafana, OpenTelemetry, DataDog, Copilot, Cursor, AI, LLM 🏢 Description: We are looking for an experienced Java Developer to work on innovative solutions in the pharmaceutical industry. Our systems support clinicians and patients worldwide, leveraging cloud-native platforms, microservices, and cutting-edge AI technologies such as large language models and intelligent agents that enhance the software development lifecycle. If you want to help shape the future of digital healthcare, working 100% remotely with an AI-first approach, this role is for you. Your tasks Develop and maintain backend services using Java/Spring Boot Apply AI tools to speed up refactoring, boilerplate generation, and debugging Design and develop REST APIs in a microservices architecture Automate unit, integration, and end-to-end testing with AI-assisted approaches Collaborate on CI/CD and code review processes, enhanced by AI tools Ensure high code quality, adherence to SOLID principles, and software best practices Contribute to projects in cutting-edge AI applications in pharma, e.g., clinical data analysis, intelligent decision support, and process automation Requirements Minimum 5 years of experience with Java 17+, JVM internals, concurrency, and memory management Strong knowledge of Spring Boot, including Spring MVC, Spring Data JPA, and Spring Security Proven expertise in designing and developing microservices-based applications Familiarity with AI/LLM tools to accelerate coding, refactoring, and bug fixing (e.g., Copilot, Cursor) Ability to leverage AI agents for automating unit tests, documentation, and PR descriptions Expertise with AWS cloud and observability tools such as Grafana, OpenTelemetry, or DataDog Fluency in both English and Polish Residing in Poland required

🏢 Summary: Remote Java Developer role focused on building and maintaining cloud-native, microservices-based backend systems for digital healthcare in the pharmaceutical industry, leveraging AI and LLM tools to enhance development processes. The position involves designing REST APIs, ensuring high code quality, and contributing to AI-driven clinical and decision-support solutions. Work is fully remote with an AI-first engineering approach. 🗂️ Requirements: Minimum 5 years experience with Java 17+, Strong knowledge of JVM internals, concurrency, and memory management, Strong experience with Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Proven experience designing microservices architectures, Experience developing REST APIs, Hands-on experience with AI/LLM coding tools, Experience with AWS cloud services, Experience with observability tools, Proficiency with SQL and NoSQL databases, Experience with CI/CD pipelines, Proficiency with Git, Fluent Polish, Residing in Poland 📃 Skills: Java, JVM, SpringBoot, SpringMVC, SpringDataJPA, SpringSecurity, Microservices, REST, AWS, Grafana, OpenTelemetry, DataDog, SQL, NoSQL, Git, CICD, LLM, Copilot, Cursor, AI 🏢 Description: We are looking for an experienced Java Developer to work on innovative solutions in the pharmaceutical industry. Our systems support clinicians and patients worldwide, leveraging cloud-native platforms, microservices, and cutting-edge AI technologies such as large language models and intelligent agents that enhance the software development lifecycle. If you want to help shape the future of digital healthcare, working 100% remotely with an AI-first approach, this role is for you. Your tasks Develop and maintain backend services using Java/Spring Boot Apply AI tools to speed up refactoring, boilerplate generation, and debugging Design and develop REST APIs in a microservices architecture Automate unit, integration, and end-to-end testing with AI-assisted approaches Collaborate on CI/CD and code review processes, enhanced by AI tools Ensure high code quality, adherence to SOLID principles, and software best practices Contribute to projects in cutting-edge AI applications in pharma, e.g., clinical data analysis, intelligent decision support, and process automation Requirements Extensive experience (minimum 5 years) with Java 17+, JVM internals, concurrency, and memory management Strong knowledge of Spring Boot, including Spring MVC, Spring Data JPA, and Spring Security Proven expertise in designing and developing microservices-based applications Familiarity with AI/LLM tools to accelerate coding, refactoring, and bug fixing (e.g., Copilot, Cursor) Ability to leverage AI agents for automating unit tests, documentation, and PR descriptions Expertise with AWS cloud and observability tools such as Grafana, OpenTelemetry, or DataDog Proficiency with SQL and NoSQL databases, CI/CD pipelines, and Git version control Fluent Polish required Residing in Poland required What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Senior Java Developer role focused on building and optimizing enterprise backend systems while contributing to React-based frontend solutions. The position involves working with modern and legacy Java frameworks, Oracle databases, and deploying applications to Azure using CI/CD pipelines. It combines backend architecture, cloud deployment, and frontend collaboration in a dynamic enterprise environment. 🗂️ Requirements: Minimum 5 years of experience in Java backend development, Expertise in Spring Boot and Quarkus, Experience with Struts, JSP, and JDBC, Proficiency in Oracle Database including schema design and PL/SQL, Experience with CI/CD pipelines, Experience deploying applications to Azure, Experience with App Services, Azure SQL, and Kubernetes, Familiarity with React and TypeScript, English proficiency at B2 level or higher 📃 Skills: Java, Spring, SpringBoot, Quarkus, Struts, JSP, JDBC, Oracle, SQL, PLSQL, CI/CD, Azure, AppServices, AzureSQL, Kubernetes, React, TypeScript 🏢 Description: We are seeking a highly skilled Senior Java Developer with expertise in React to enhance and modernize our technology landscape. This role involves working on the development and optimization of backend systems while contributing to cutting-edge React-based UI solutions within a dynamic enterprise setting. This role offers a full office model, with 3 days per week working from the client's office in Krakow, Poland. Responsibilities Design and implement robust backend services using Java Leverage modern frameworks like Spring Boot and Quarkus as well as legacy technologies such as Struts, JSP, and JDBC Contribute to system architecture design and ensure seamless integration across enterprise systems Optimize Oracle Database performance through schema design and PL/SQL programming Manage and deploy applications via CI/CD pipelines to Azure infrastructure, including App Services, Azure SQL, and Kubernetes Develop and enhance React and TypeScript-driven user interfaces in cooperation with the frontend team Conduct thorough code reviews and guide team members by sharing expertise Collaborate with cross-functional teams to ensure scalable and secure application development Requirements At least 5 years of experience in Java backend development Expertise in modern frameworks like Spring Boot and Quarkus, alongside legacy systems such as Struts, JSP, and JDBC Proficiency in Oracle Database, including schema design, SQL, and PL/SQL Competency with CI/CD pipelines and experience in deploying applications to Azure, leveraging App Services, Azure SQL, and Kubernetes Familiarity with React and TypeScript for frontend development Demonstrated ability to mentor junior developers and collaborate effectively within a team English proficiency at B2 level or higher Nice to have Knowledge of system integration within large enterprise ecosystems Familiarity with cloud-native architectures and containerization Background in the financial sector or experience in regulated industries We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Full Stack Senior Java Developer role focused on designing and delivering scalable web applications using Java and React.js in an Agile environment. The position involves building high-performance front-end components, developing RESTful microservices, and managing cloud-based deployments with modern DevOps practices. This is a hybrid role with long-term cooperation on high-impact, international projects. 🗂️ Requirements: Bachelor’s or Master’s degree in Computer Science, Engineering or related field, 5+ years of experience as Full Stack Developer with Java and React.js, Commercial experience with Agile methodologies, Strong experience in RESTful API and microservices development, Hands-on experience with SQL and NoSQL databases, Experience with CI/CD pipelines and containerization tools, Knowledge of authentication and authorization mechanisms 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, React, Redux, TypeScript, JavaScript, HTML5, CSS3, MaterialUI, Bootstrap, Tailwind, REST, Microservices, OAuth2, JWT, PostgreSQL, MySQL, MongoDB, Redis, Jenkins, GitHubActions, GitLab, AWS, Azure, GCP, Docker, Kubernetes 🏢 Description: Senior Java Developer IT · Warsaw (City Center) · Hybrid About the Client Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They focus on building high-quality, scalable products using modern tech stacks and agile methodologies. With a strong emphasis on engineering excellence, they offer a collaborative environment where experts can thrive and influence the technical direction of the products. Please note: Optiveum is a recruitment agency conducting this search on behalf of our Client. Role Overview We are seeking a highly skilled Full Stack Developer with expertise in Java and React.js to join our dynamic team. The ideal candidate should have over 5 years of experience in designing, developing, and deploying scalable web applications. This role requires strong front-end and back-end development expertise, working in an Agile environment to deliver high-quality software solutions. Key Responsibilities Front-End Development: Design and develop interactive, responsive, and high-performance UI components using React.js, Redux, and modern JavaScript (ES6+). Ensure cross-browser compatibility and a seamless user experience, while optimizing front-end performance and implementing best practices in UI/UX design. Back-End Development: Develop and maintain RESTful APIs and microservices using Java (Spring Boot, Hibernate, JPA). Implement robust authentication, authorization, and data management solutions, working with relational and NoSQL databases such as PostgreSQL, MySQL, and MongoDB. System Integration & Deployment: Integrate third-party services, APIs, and cloud-based solutions. Manage deployments using CI/CD pipelines and containerization tools like Docker & Kubernetes. Code Quality & Testing: Write clean, maintainable, and efficient code following best practices. Implement unit and integration tests for both front-end and back-end components. Collaboration & Agile Development: Work closely with UI/UX designers, product managers, and DevOps engineers. Participate in Agile/Scrum ceremonies and contribute to continuous process improvements. Requirements & Qualifications Experience & Education: Bachelor's or Master's degree in Computer Science, Engineering, or a related field. 5+ years of professional experience as a Full Stack Developer with Java & React.js, alongside experience working with Agile development methodologies. Front-End Stack: Proficiency in React.js, Redux, TypeScript, HTML5, CSS3, and modern JavaScript (ES6+). Strong understanding of state management libraries and component-based architecture. Experience with UI frameworks like Material-UI, Bootstrap, or Tailwind CSS. Back-End Stack: Expertise in Java, Spring Boot, Hibernate, JPA, and RESTful API development. Experience with microservices architecture and API Gateway implementations. Knowledge of authentication mechanisms like OAuth2, JWT, and session-based authentication. Database & DevOps: Experience with SQL databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis). Hands-on experience with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD). Familiarity with cloud platforms (AWS, Azure, GCP) and containerization using Docker, Kubernetes. Soft Skills: Strong problem-solving and analytical skills. Excellent communication and teamwork abilities. Ability to manage multiple priorities in a fast-paced environment. Passion for learning new technologies and improving existing processes. What Is Offered Compensation: Monthly compensation up to $6,200 (depending on experience and interview results). Contract Type: B2B contract via Optiveum. Work Model: Hybrid (3 days working from the office located in the center of Warsaw, 2 days working from home). Stability: Long-term cooperation with a stable, international organization. Growth: Opportunity to work with the latest technologies and high-impact projects.

🏢 Summary: Senior Fullstack Developer (Java) role focused mainly on backend development for a logistics platform providing operational monitoring, schedule transparency, and analytical insights. The position involves designing, developing, and maintaining Java EE applications, including modernization and cloud migration initiatives. Work is primarily remote with occasional on-site visits. 🗂️ Requirements: Minimum 5 years of experience as Fullstack Developer, Strong proficiency in Java, Experience with JSF, JPA, EJB, CDI, JAXRS, Hands-on experience in JEE web application development, Basic knowledge of SQL, Basic knowledge of UNIX, Experience with Maven, Experience with Git, Ability to manage and maintain Payara Server, Experience with requirements analysis and UML modeling, Fluent English (written and spoken) 📃 Skills: Java, JEE, JSF, JPA, EJB, CDI, JAXRS, SQL, UNIX, Maven, Git, Payara, OpenAPI, DB2, Neptune, OpenSearch, PrimeFaces, GitLab, Jenkins, JFrog, AWS, UML 🏢 Description: About the Project For our Client - a global logistics company we are looking for a Senior Fullstack Developer (Java) who will be working with a platform that integrates several sources for giving transparent view for coastals schedule to internal operational stakeholders. Team also provides the tools for the operational monitoring, past performance analysis and recovery measures. Additional insights provided by the platform are based on statistical & analytical approaches (e.g. move prediction, avg. port time, etc.) The role is approx. 75% BE tasks and 25% FE tasks. Tech: Java EE, JDK 8, Payara Server 5, OpenAPI, IBM DB2, Neptune graph DB from AWS, OpenSearch, UI: JSF + Primefaces, GitLab, Jenkins, JFrog Work Mode: remote (with occasional trips to Gdańsk) Job Responsibilities Design and implement full-stack applications (front- and backend) using Java (JEE) Write, test, debug, and document code, solutions, and applications Collaborate with your team to handle the entire software development life cycle: from analysis and design to testing, deployment, maintenance, operations, and 3rd-level support Work closely with internal stakeholders and external partners to analyze existing applications, solutions, business processes, and requirements Modernize and expand current applications by migrating from on-premises infrastructure to a cutting-edge cloud platform Manage and maintain existing on-premises infrastructure, including Payara Application Servers and standalone Java applications Expectations Min. 5 years of experience as Fullstack Developer Strong proficiency in Java, with knowledge of JSF, JPA, EJB, CDI, and JAX-RS Hands-on experience in JEE full-stack web application development Basic knowledge of SQL, UNIX, Maven, and Git Familiarity with requirements gathering, documentation, and the use of software design/modeling tools (e.g., UML) Solid understanding of software development processes, with flexibility and strong customer orientation Excellent command of English , both written and spoken, combined with strong communication skills Nice to have: Experience with agile development methodologies (e.g., Scrum); Knowledge of AWS cloud services (OpenSearch, EC2, Neptune, ECS); Work experience or familiarity with the international logistics industry; DevOps experience We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres) Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.

🏢 Summary: The offer is for a Java & React Developer to build and develop Data Lake and DWH solutions, including online and offline data flows and "chat with data" applications. The role involves designing and implementing APIs, data processing solutions, and conversational web interfaces integrated with data platforms. The position includes working in a DevSecOps model within production environments. 🗂️ Requirements: React frontend development, Experience building web applications with conversational (chat) features, Java backend development and API design, Basic knowledge of BigQuery and SQL, UI design for data presentation (tables, charts, drill-down, export), Experience with Git, code review, and quality standards, Writing unit, integration, and E2E tests, Experience with CI/CD pipelines, Monitoring and logging in production environments, Incident response and production support, Collaboration with AI and data teams (API contracts, data formats, validations) 📃 Skills: Java, React, SQL, BigQuery, Git, CI/CD, Monitoring, Logging, API, DevSecOps, Unit, Integration, E2E 🏢 Description: Dla naszego Klienta szukamy Java & React Developer. Opis stanowiska: budowanie rozwiązań klasy Data Lake i DWH - procesy zasilania zarówno on-line jak i off-line, projektowanie i realizowanie rozwiązań informatycznych w obszarze zasilania danych, analizowanie danych oraz przygotowanie modeli logicznych i fizycznych, strojenie zapytań SQL na bazach relacyjnych i hurtownianych w on-prem i na chmurze GCP tworzenie przepływów off-linowe i on-linowe zarówno w narzędziach on-prem jak i GCP, tworzenie rozwiązań ładowania danych w Python oraz Rust dla danych strukturalnych i niestrukturalnych, budowanie i rozwijanie narzędzi „chat with data”: od warstwy rozmowy, przez interpretację intencji, po generowanie zapytań i prezentację odpowiedzi tworzenie koncepcji rozwiązań i implementacje rozwiązań w oparciu o wymagania i potrzeby biznesu, usuwanie incydentów i branie udział w rozwiązywaniu problemów, wspieranie testów i wdrażanie zmian w zakresie procesów zasilania danych, pomaganie przy serwisowaniu wdrożonego oprogramowania, praca zgodnie z modelem DevSecOps. Wymagania: znajomość frontend’u: React doświadczenie w budowie aplikacji webowych z elementami konwersacyjnymi (chat): streaming odpowiedzi, historia rozmów, feedback użytkownika, prezentacja źródeł/uzasadnień doświadczenie w budowie backendu: Java – projektowanie i rozwój usług API podstawy pracy z BigQuery/SQL umiejętność projektowania ergonomicznego UI dla danych: tabele, wykresy, drill down, eksport wyników praktyka w pracy zespołowej: Git, code review, standardy jakości, dokumentacja, testy (unit/integration/e2e) doświadczenie w środowisku produkcyjnym: CI/CD, monitoring/logowanie, reagowanie na incydenty gotowość do współpracy z AI Engineer i zespołami data (kontrakty API, formaty danych, walidacje, ograniczenia kosztowe) Mile widziana znajomość: rozwiązań klasy semantic/metrics layer - semantic layer, caching, pre-aggregations, governance metryk narzędzia „conversational analytics” / wzorce produktowe dla „chat with data”: citations, „pokaż SQL”, tryby explore vs answer, scoring zaufani biblioteki UI i data-viz znajomość GCP: Cloud Run, Pub/Sub podstawy konteneryzacji i wdrożeń: Docker/Kubernetes doświadczenie w środowisku regulowanym (bankowość): audyt, zgodność, klasyfikacja danych, procesy bezpieczeństwa Oferujemy: umowa B2B miejsce realizacji zadań: min. jeden dzień w tygodniu w biurze (Poznań/Warszawa) ​ opcjonalnie pakiet medyczny, my Benefit

🏢 Summary: Long-term role in a global medical diagnostics project focused on building and scaling a Java-based test automation framework for a cloud-ready digital platform. The position involves developing UI test automation, integrating tools, and supporting CI/CD within a Scaled Agile environment. You will collaborate with cross-functional teams to enhance automation capabilities across multiple product teams. 🗂️ Requirements: Minimum 5 years of experience in test automation, Strong expertise in Java and OOP, Experience building test automation frameworks from scratch, Hands-on experience with Playwright or Selenium, Experience with TestNG or JUnit, Knowledge of SOLID, DRY, KISS principles, Understanding of design patterns (Decorator, Factory, Facade, Strategy, Builder), Experience with Maven and multi-module projects, Experience with surefire, failsafe, compile plugins, Experience integrating xRay, Allure, Sonar, PMD, Knowledge of GitHub and GitHub Actions, Experience in CI/CD automation, Experience in SAFe or Scaled Agile environments, Experience with refactoring and static code analysis 📃 Skills: Java, OOP, Playwright, Selenium, TestNG, JUnit, Maven, xRay, Allure, Sonar, PMD, GitHub, GitHubActions, CI/CD, SAFe, SOLID, DRY, KISS, Lombok, POJO 🏢 Description: About project: You will join a long-term, strategic initiative developing an advanced digital platform supporting clinical workflows in the area of medical diagnostics. The solution is built in a modern ecosystem and used globally by healthcare professionals. The environment is highly scalable, cloud‑ready, and developed in an international, cross‑functional setup. The team is currently expanding its test automation capabilities and implementing a large-scale automation framework supporting multiple product teams across several locations. Job Responsibilities Collaboration with cross-functional teams (BE, FE, QA, PO, SM) to design, implement, and scale test automation solutions,Development and enhancement of the Java-based test automation framework , Creating and maintaining UI automated tests using Playwright (and Selenium where applicable), Working within 2-week sprints in a Scaled Agile setup,Ensuring code quality through refactoring , use of design patterns , and static analysis tools,Integrating the automation framework with xRay, Allure, Jira , Developing CI/CD automation using GitHub Actions ,Supporting the shift-left testing approach across the organization. Expectations At least 5 years of experience in test automation , Strong expertise in Java , deep knowledge of OOP , and experience building test automation frameworks from scratch , Hands-on experience with Playwright (or Selenium ) and test frameworks such as TestNG or JUnit , Practical understanding of SOLID , DRY , KISS , encapsulation , and common design patterns (including Decorators , Factories , Facades , Strategy , Builder ), Experience with Maven , especially multi‑module projects and plugins such as surefire , failsafe , and compile , Experience integrating tools such as xRay , Allure , Sonar , PMD , Good knowledge of GitHub and GitHub Actions ,Familiarity with Lombok , POJO definitions , and refactoring best practices , Experience working in SAFe / Scaled Agile environments, Strong communication skills and ability to collaborate effectively in distributed teams, Nice to have: experience with Python for basic performance testing and familiarity with AI agents / GitHub Copilot . We Offer Ongoing support from a dedicated agent, taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program - advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development - a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events - technical, business, and lifestyle, Spectacular integration events, both for you (e.g., annual Kick-Off trip, Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project - you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sound familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our goal is to provide you with stable and comfortable cooperation, contributing to your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience in creating IT solutions for over 200 organizations.

🏢 Summary: Senior Fullstack Developer role focused on building a greenfield solution using Java 17+ and Spring Boot on the backend and React on the frontend. The position involves end-to-end development, architecture co-creation, REST API design, and ensuring code quality within an Agile environment. The role requires close collaboration with business stakeholders and active participation in technical decision-making. 🗂️ Requirements: Minimum 8 years of experience in 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 in building full-stack applications, Practical experience in REST API design, Experience with relational databases, Experience working in Agile methodology, Ability to analyze business requirements technically, Very good English skills 📃 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