Senior Java Developer

🏢 Summary: The offer is for a Java Developer responsible for designing and developing backend solutions for genetic diagnostics and analytical software within an international Scrum team. The role involves system and API integration, database work, and maintaining software quality in a biotechnology environment. It is a hybrid B2B position based in Wrocław. 🗂️ Requirements: Minimum 4 years of experience as Java Developer, Experience with Java 17, Experience with Spring 6, Experience with Hibernate 6 or JPA, Experience with Angular, Experience with PostgreSQL, Experience with Gradle, Experience with Docker, Ability to work in Scrum/Agile environment, English level minimum B2 📃 Skills: Java, Spring, Hibernate, JPA, Angular, PostgreSQL, Gradle, Docker, Scrum, Agile 🏢 Description: For our client we are currently looking for a Java Developer who, together with the team, will be responsible for the technical aspects of the project related to genetic diagnostics. In this position you’ll collaborate with a team from Poland and German and be a part of global company in the field of biotechnology and molecular diagnostics. Key responsibilities Designing and developing backend solutions in Java Working in a Scrum/Agile team System and API integration Working with databases Developing diagnostic and analytical software Participating in testing and quality maintenance Working in an international environment Ideal candidate profile Minimum 4 years of experience in a similar position Experience with Java minimum 17 (required) Spring version 6 and Hibernate 6 / JPA (required) Experience with Swing Experience using Gradle Knowledge of Docker English language: minimum B2 Nice to have: experience with unit testing and AI tools Conditions Location: hybrid in Wrocław, Poland (Initially 2–3 days/week in the office, with the possibility to reduce to 1 day/week later) Contract type: B2B Salary: 130-150 PLN/h + VAT Benefits: Private medical care, life insurance, Multisport card Recruitment steps Phone call with a Recruiter (approx. 30 min.) Interview with Client (1,5h) Decision and feedback

🏢 Summary: B2B Java Developer role focused on designing and optimizing scalable architecture for Java-based applications in a hybrid model (3 days in Krakow). The position involves working in an Agile environment on long-term projects, with responsibility for system scalability, integration, and performance testing. This role targets experienced professionals capable of managing complex Java and microservices architectures. 🗂️ Requirements: 8–10 years of experience in Java development, Strong knowledge of advanced Java concepts, Experience with Java API management, Experience in microservices architecture, Experience with database technologies, Experience designing scalable system architectures, Ability to perform system performance and validation testing, Experience working in Agile environment 📃 Skills: Java, Microservices, API, Databases, Agile 🏢 Description: We are looking for a Java Developer on behalf of our client, a well-known and fast-growing technology company offering a stable, long-term project in a modern environment. 📍 Work mode: Hybrid — 3 days from Krakow 📄 Contract: B2B Role Description Agile Way of Working Advanced Java Concepts Java API Management & Microservices Database Technology Experience (Years): 8–10 Responsibilities: Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the companys architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. Responsibility of Expectations from the Role Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the companys architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. ✅ Benefits: Work with modern technologies and international teams Long-term and stable cooperation Professional growth opportunities

🏢 Summary: The offer is for an experienced Java Developer to build and maintain scalable, enterprise-level applications supporting global travel platforms. The role involves full lifecycle development, designing and implementing REST/SOAP services, and working with modern Java technologies in an Agile, CI/CD-driven environment. You will collaborate with cross-functional teams to enhance business-critical systems and deliver high-quality, reliable software solutions. 🗂️ Requirements: Minimum 5 years of commercial experience as Java Developer, Experience with Java 8 and Java 17, Strong knowledge of Spring Framework, Strong knowledge of Hibernate, Strong knowledge of EclipseLink, Proficiency in Oracle SQL, Proficiency in PL/SQL, Experience with GitHub, Experience with TeamCity, Experience with Tomcat or Tomee, Experience designing and implementing REST web services, Experience designing and implementing SOAP web services, Knowledge of JSP, Knowledge of Struts, Knowledge of JavaScript, Experience with unit testing using JUnit, Very good command of English 📃 Skills: Java, Spring, Hibernate, EclipseLink, Oracle, SQL, PLSQL, GitHub, TeamCity, Tomcat, Tomee, REST, SOAP, JSP, Struts, JavaScript, JUnit 🏢 Description: We are looking for a Java Developer to join our team and contribute to building scalable, enterprise-level applications that support our global travel platforms. In this role, you will participate in the full software development lifecycle, working closely with Product Owners, QA Engineers, UX/UI Designers, and other developers to deliver reliable, high-quality solutions. You will play an important role in maintaining and enhancing business-critical systems while contributing to the continuous evolution of our technology landscape. Your responsibilities Participate in the full software development lifecycle, from requirements gathering and solution design to deployment and support Collaborate with Product Owners, Designers, QA Engineers, and Developers to deliver high-quality software solutions Design, develop, and maintain applications using Java technologies Write clean, efficient, and maintainable code following development best practices Develop and maintain automated unit tests using JUnit Design, implement, and maintain REST and SOAP web services Create, optimize, and troubleshoot SQL and PL/SQL queries Maintain and improve existing applications, including bug fixing and performance enhancements Prepare and maintain technical documentation Identify opportunities for system improvements and contribute to technical innovation Our requirements Minimum 5 years of commercial experience as a Java Developer Experience working with Java 8 and Java 17 Strong knowledge of Spring Framework, Hibernate, and EclipseLink Proficiency in Oracle SQL and PL/SQL Experience with tools such as GitHub, TeamCity, and Tomcat/Tomee Experience designing and implementing REST and SOAP web services Knowledge of JSP, Struts, and JavaScript Experience with unit testing using JUnit Strong analytical and problem-solving skills Very good command of English and ability to work in an international environment Nice to have Willingness to learn and work with React Experience with Linux, Docker, or AWS Familiarity with Java EE standards Understanding of CI/CD processes and modern development practices How we work Clean Code principles Design patterns and software engineering best practices Code reviews and knowledge sharing Continuous Integration and Continuous Deployment (CI/CD) Agile and collaborative development environment Cross-functional teams working closely across Product, QA, UX/UI, and Engineering Focus on quality, maintainability, and continuous improvement What we offer Hybrid work model (1–2 days per week in our Katowice office) Opportunity to work on international, large-scale projects used by customers worldwide Attractive remuneration paid in EUR Flexible working hours Individual learning and development budget Partially or fully funded training and certifications English lessons Mentoring and support from experienced technical leaders Participation in conferences in Poland and abroad A culture focused on collaboration, knowledge sharing, and continuous improvement Space to innovate and bring your own ideas to life Support for IT community initiatives and professional networking Long-term cooperation in a stable, growing international organization

🏢 Summary: Remote B2B offer for an experienced Java Developer to design and build scalable REST APIs and broker integrations using Spring-based technologies within a microservices architecture. The role focuses on high-quality API development, SQL database management, and system design in a Scrum team. The position involves international collaboration and participation in architecture and integration initiatives. 🗂️ Requirements: Minimum 5 years of experience with Java (8/17/21), Strong knowledge of Spring Framework, Strong knowledge of Hibernate, Experience with REST API design and development, Experience with microservices architecture, Strong SQL and relational database expertise, Knowledge of architectural and design patterns, Experience with Git, Experience with TeamCity, Polish proficiency, English proficiency 📃 Skills: Java, Spring, Hibernate, SQL, REST, Microservices, Git, TeamCity, Maven, Scrum, RelationalDatabases, DesignPatterns 🏢 Description: Work model: remote, visit in the office once a quater in Warszawa Rate: up to 150 PLN/h (B2B contract) We are looking for a motivated Java Developer to join our team focused on building and evolving API integrations with external brokers. The ideal candidate will possess a strong background in Java, Spring-based technologies, and a deep understanding of systems integration and microservices architecture. You will contribute significantly to developing high-quality, maintainable APIs that enable seamless integration with various partners across multiple international markets. We work in a cross-functional team utilizing Scrum methodology. Main Responsibilities Design and build high-quality APIs using Java (8/17/21) and Spring-based technologies, ensuring scalability and maintainability. Develop and enhance broker integrations, contributing to business growth and market expansion. Contribute to modern service-oriented architecture design applying microservices knowledge. Manage SQL databases and ensure data consistency and reliability in applications. Utilize tools like Git, Maven, and TeamCity for continuous integration and code delivery. Collaborate on frontend API usability to ensure practical and well-structured solutions. Communicate effectively in Polish and English to facilitate international collaboration. Key Requirements At least 5 years of experience with Java (8/17/21 ) Deep knowledge of the Spring Framework and Hibernate. Strong SQL and relational database expertise. Strong problem-solving skills and proactive attitude. Experience in clean REST API design and development. Familiarity with microservices architecture. Knowledge of architectural and design patterns. Experience with Git and TeamCity. Polish and English proficiency. Nice to Have Experience with React for effective collaboration with frontend developers. Experience with large-scale applications using Maven. Knowledge of Apache Kafka. Experience with Domain-Driven Design (DDD) or Hexagonal architecture. Experience in decoupling monolithic applications. Background in the fintech industry. Recruitment process: 1. Live coding session 2. System design session 3. HR interview

🏢 Summary: The offer is for an experienced Java Developer to design, build, and maintain scalable backend systems and microservices. The role involves developing RESTful APIs, integrating with cloud services, and working with databases in a collaborative environment. The position is available fully remote or on-site in Warsaw or Gdańsk. 🗂️ Requirements: Minimum 4 years of commercial experience with Java, Strong knowledge of Spring and Spring Boot, Experience with cloud platforms (AWS, Azure, GCP or similar), Solid experience with relational or non-relational databases, Experience with RESTful API design, Experience with Git, Experience with CI/CD pipelines, Understanding of software development best practices 📃 Skills: Java, Spring, SpringBoot, AWS, Azure, GCP, PostgreSQL, MySQL, Oracle, MongoDB, Git, CI/CD, REST, Microservices 🏢 Description: About the Role We are looking for an experienced Java Developer. If you have at least 4 years of commercial experience in Java development, solid knowledge of databases, and hands-on experience with any cloud platform – we would love to hear from you. This position is available as fully remote or 100% on-site in Warsaw or Gdańsk . Responsibilities Designing, developing, and maintaining scalable backend systems using Java Building and optimizing RESTful APIs and microservices Collaborating with cross-functional teams (QA, DevOps, Product Owners, Frontend Developers) Writing clean, maintainable, and testable code Participating in code reviews and technical discussions Integrating applications with cloud-based services Working with relational and/or non-relational databases Troubleshooting, debugging, and performance optimization Contributing to architectural decisions and technical improvements Requirements Minimum 4 years of commercial experience with Java Strong knowledge of Spring / Spring Boot Experience with any cloud platform (e.g., AWS, Azure, GCP or other) Solid experience with databases (e.g., PostgreSQL, MySQL, Oracle, MongoDB, etc.) Good understanding of RESTful API design Experience with Git and CI/CD pipelines Good knowledge of software development best practices Very good command of English (min. B2+ level)

🏢 Summary: Long-term B2B contract for a senior Java Developer to design and optimize scalable Java-based systems in an Agile environment. The role focuses on architecture design, microservices, API management, and performance optimization within a modern technology stack. Hybrid work model with 3 days onsite in Krakow. 🗂️ Requirements: 8–10 years of experience in Java development, Advanced knowledge of Java and JVM concepts, Experience with microservices architecture, Experience with API management, Experience with database technologies, Experience designing scalable system architectures, Ability to perform performance and scalability testing, Experience with application integration, Experience working in Agile environment 📃 Skills: Java, JVM, Microservices, API, Databases, SQL, Architecture, Scalability, Performance, Integration, Agile 🏢 Description: We are looking for a Java Developer on behalf of our client, a well-known and fast-growing technology company offering a stable, long-term project in a modern environment. 📍 Work mode: Hybrid — 3 days from Krakow 📄 Contract: B2B Role Description Agile Way of Working Advanced Java Concepts Java API Management & Microservices Database Technology Experience (Years): 8–10 Responsibilities: Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the companys architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. Responsibility of Expectations from the Role Designing scalable architecture systems for Java-based applications. Identifying the hardware and software infrastructure needs to accommodate the companys architectural goals. Troubleshooting design flaws and system bottlenecks. Performing validation tests to ensure the flexibility and scalability of the Java environment. Assisting the software design team with application integration. Conducting system performance tests. Completing systems reports. ✅ Benefits: Work with modern technologies and international teams Long-term and stable cooperation Professional growth opportunities 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Oferta dla Java Developera z doświadczeniem w Spring, Hibernate i Spring Boot do projektu w branży ubezpieczeniowej. Rola obejmuje projektowanie i implementację rozwiązań w zespole zwinnym oraz dbanie o jakość oprogramowania i dokumentację techniczną. Praca w modelu zdalnym lub hybrydowym (min. 1 dzień w biurze w Warszawie) w oparciu o umowę B2B. 🗂️ Requirements: Minimum 3 lata doświadczenia w Java, Minimum 3 lata doświadczenia w Spring i Hibernate, Minimum 3 lata doświadczenia w Spring Boot, Znajomość Git, Znajomość Maven, Znajomość frameworków do testów jednostkowych, Znajomość paradygmatów OOP, Znajomość paradygmatów Functional Programming, Znajomość Kafka, Świadczenie usług z terytorium Polski, Gotowość do pracy hybrydowej (min. 1 dzień w biurze w Warszawie) 📃 Skills: Java, Spring, Hibernate, SpringBoot, Git, Maven, Kafka, OOP, FunctionalProgramming, Docker, Kubernetes, Helm, RabbitMQ, ElasticSearch, SpringCloud, SQL 🏢 Description: Dla klienta z branży ubezpieczeniowej poszukujemy Java Developera! ZADANIA - Współudział w opracowaniu koncepcji rozwiązania dla inicjatyw biznesowych - Utrzymywanie i aktualizacja repozytorium dokumentacji technicznej systemów informatycznych - Zapewnienie właściwej jakości wytwarzanego oprogramowania i zgodności ze standardami - Zapewnienie jakości wytwarzanych produktów, wsparcie testów akceptacyjnych oraz wdrożenia rozwiązania - Udział w planowaniu kolejnych wydań oraz iteracji w ramach prac zespołu zwinnego - Udział/prowadzenie review oraz retrospective zespołu w ramach iteracji i wydania - Projektowanie rozwiązań implementowanych w zespole zwinnym - Implementacja rozwiązań przyjętych do realizacji przez zespół WYMAGANIA - Dobra znajomość Java (>3 lata) - Dobra znajomość Spring/Hibernate, Spring Boot (>3 lata) - Znajomość narzędzi Git, Maven - Znajomość frameworków do pisania testów jednostkowych - Znajomość paradygmatów Functional Programming i Object Oriented Programming - Znajomość Kafka - Świadczenie usług z terytorium Polski - Świadczenie usług hybrydowo – minimum 1 dzień z biura MILE WIDZIANE - Znajomość Docker, K8S, Helm - Znajomość RabbitMQ, ElasticSearch - Znajomość Spring Cloud - Dobra znajomość języka SQL CO OFERUJEMY NA TYM PROJEKCIE? - Współpracę w oparciu o umowę B2B - Pracę 100% zdalną / hybrydową z Warszawy (1 raz w tygodniu w biurze) - Wydarzenia oraz spotkania integracyjne, udział w inicjatywach sportowych - Dostęp do benefitów (opieka medyczna, ubezpieczenie na życie, karta Multisport)

🏢 Summary: Opportunity for an experienced Java Developer to build and optimize high-performance financial systems, including trading platforms, risk management tools, and real-time market data solutions. The role focuses on developing scalable, mission-critical applications using modern Java and enterprise technologies. You will contribute to robust, low-latency systems in a fast-paced capital markets environment. 🗂️ Requirements: 5+ years of Java development experience (Java 8+), Strong experience with Spring Framework, Experience with relational and NoSQL databases (Oracle, PostgreSQL, MongoDB), SQL optimisation and database performance tuning skills, Experience with Maven or Gradle, Proficiency with Git, Experience designing and implementing RESTful APIs, Experience with messaging systems (JMS, RabbitMQ, Kafka) 📃 Skills: Java, Spring, Oracle, PostgreSQL, MongoDB, SQL, Maven, Gradle, Git, REST, JMS, RabbitMQ, Kafka 🏢 Description: About the Role We're seeking an experienced Java Developer to contribute to innovative financial technology solutions that drive the global capital markets. You'll be part of a collaborative team developing mission-critical systems including high-performance trading platforms, sophisticated risk management tools, regulatory compliance frameworks, and real-time market data processing engines trusted by top-tier financial institutions worldwide. What You'll Do Design and develop robust, scalable financial applications using modern Java technologies Build and optimise high-throughput trading systems and market data processing solutions Collaborate with cross-functional teams to deliver risk management and compliance platforms Implement RESTful services and integrate messaging systems for real-time data flow Optimise database performance and ensure system reliability in fast-paced trading environments Required Qualifications 5+ years of hands-on Java development experience with modern versions (Java 8 and above) Strong expertise in Spring Framework and enterprise application development Proven experience with relational and NoSQL databases including Oracle, PostgreSQL, and MongoDB Demonstrated skills in SQL optimisation and database performance tuning Proficiency with build automation tools ( Maven, Gradle ) Experience with Git version control and collaborative development workflows Solid understanding of RESTful API design and implementation Knowledge of enterprise messaging systems ( JMS, RabbitMQ, Kafka ) Be happy to work in a hybrid model - 3 days per week in the office in Central Krakow

🏢 Summary: Java Developer role focused on building and optimizing scalable, high-performance applications for Fixed Income Rates and Credit trading desks within a global markets technology team. The position involves Java development, low-latency and multi-threaded programming, cross-functional collaboration, and production support in an international environment with hybrid work from Krakow. 🗂️ Requirements: 3+ years of professional Java development experience, Experience with low-latency programming, Experience with multi-threaded programming, Strong problem-solving and analytical skills, Ability to translate business requirements into technical specifications, Strong communication skills, English level B2 or higher, Availability to work from Krakow office 3 days per week 📃 Skills: Java, Kafka, AVRO, Azure, AWS, GCP, Bloomberg, Tradeweb 🏢 Description: We are hiring a Java Developer to deliver high-performance applications for Fixed Income Rates and Credit trading desks in a global markets tech team. You will build scalable Java services, improve existing components, and collaborate across 8 cities in 6 countries. Please note that working from the office in Krakow 3 days per week is required. Responsibilities Design and develop scalable Java applications that solve complex business challenges Improve and refactor existing components to increase performance and maintainability Lead UAT activities and deliver demos for key stakeholders Translate business requirements into clear technical specifications Collaborate with global IT teams to ensure smooth integration Support production releases and provide ongoing maintenance Deliver modern solutions while preserving functionality across a sophisticated, multi-faceted platform Requirements Hands-on experience with Java development, including 3+ years of professional work Practical familiarity with low-latency techniques and multi-threaded programming approaches Excellent problem-solving and analytical abilities Strong communication skills, able to explain complex technical topics to non-technical stakeholders Demonstrated eagerness to learn and adapt to new technologies and market changes English proficiency at B2 (Upper-Intermediate) level or higher Nice to have Knowledge of financial markets, especially Rates and Credit bonds/derivatives, and trading platforms such as Bloomberg and Tradeweb Experience with messaging systems like Kafka and data serialization formats such as AVRO Understanding of cloud platforms including Azure, AWS, or GCP 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: B2B role for a Senior Java Developer responsible for developing and enhancing applications and services with a strong focus on quality, performance, and reliability. The position involves designing solutions, writing unit and integration tests, and working with cloud-based and containerized environments. Hybrid work model with long-term cooperation (12+ months). 🗂️ Requirements: Minimum 5 years of commercial experience in Java, Experience with Java SE 11 or higher, Strong knowledge of Spring Boot, Strong knowledge of Spring Integration, Knowledge of relational databases, Experience with Git, Experience with Maven, Experience with Jira, Experience with Jenkins, Knowledge of SOAP, Knowledge of REST, Knowledge of XML, Knowledge of JSON, Experience with GCP, Experience with BigQuery, Experience with CloudSQL, Experience with Pub/Sub, Practical knowledge of non-relational databases, Experience with containerized applications, Experience with Anthos, Experience with Kubernetes Engine, Experience with Docker, Knowledge of Micronaut framework 📃 Skills: Java, JavaSE, SpringBoot, SpringIntegration, SQL, Git, Maven, Jira, Jenkins, SOAP, REST, XML, JSON, GCP, BigQuery, CloudSQL, PubSub, NoSQL, Anthos, Kubernetes, Docker, Micronaut 🏢 Description: Dla naszego Klienta szukamy Developera Java. Opis stanowiska: implementujesz nowe lub modyfikujesz istniejące aplikacje/serwisy tworzysz testy jednostkowe i integracyjne dla budowanych aplikacji/serwisów dbasz o wysoką jakość oprogramowania (funkcjonalność, wydajność, niezawodność) dokumentujesz zaimplementowane rozwiązania analizujesz możliwe rozwiązania bierzesz udział w pracach projektowych Wymagania: masz min. 5-letnie doświadczenie komercyjne w programowaniu w języku obiektowym Java masz doświadczenia w zakresie programowania w języku Java SE 11 (wersja 11 lub wyższa) dobrze znasz Spring Boot/Spring Integration znasz relacyjne bazy danych znasz narzędzia: Git, Maven, Jira, Jenkins znasz standardy: SOAP, REST, XML, JSON masz wykształcenie wyższe informatyczne lub pokrewne umiesz pracować w zespole doświadczenie w środowisku chmurowym GCP (w szczególności BigQuery, CloudSQL, Pub/Sub) praktyczna znajomość nierelacyjnych baz danych praktyczne doświadczenie przy budowania skonteneryzowanych aplikacji (Anthos, Kubernetes Engine, Docker) znajomość innych frameworków (np. micronaut) Oferujemy: umowa B2B współpraca ponad 12 miesięcy praca w modelu hybrydowym: 1 x w tygodniu w biurze (Warszawa, Chmielna 89) opcjonalnie: pakiet medyczny Lux-Med, myBenefit