Java Backend Developer | Hybrid Warsaw

🏢 Summary: The offer is for a Java Backend Developer role focused on building and maintaining microservices-based systems using Java and Spring technologies. The position involves developing REST APIs, working with containerized applications, and contributing to Agile delivery processes. The role centers on backend engineering, technical design, and collaboration within cross-functional teams. 🗂️ Requirements: Minimum 3+ years professional experience in backend development, Proficiency in Java 8+, Strong experience with Spring Boot and Spring technologies, Experience building microservices, Experience working with REST APIs, Knowledge of HTTPS, SFTP, REST and SOAP protocols, Understanding of microservices architecture and containerization, Experience with Kafka, Experience with Git and GitHub, Experience with Maven and Jenkins, Experience with MySQL and SQL databases, Familiarity with Linux, Experience working in Agile/Scrum environments 📃 Skills: Java, Spring, SpringBoot, REST, Microservices, Kafka, HTTPS, SFTP, SOAP, Linux, Git, GitHub, Maven, Jenkins, Jira, MySQL, SQL, Containerization, Agile 🏢 Description: Job Description: We are looking for skilled Java Backend Developers with strong experience in Java, Spring technologies, and microservices architecture. The ideal candidate will have hands-on expertise in backend development, REST APIs, containerized applications, and Agile delivery environments. Qualifications: Minimum 3+ years of relevant professional experience Proficiency in Java 8+, REST APIs, Spring Boot, and Spring technologies Experience in building microservices and working with Kafka Solid understanding of HTTPS, SFTP, REST API, and SOAP protocols Familiarity with Linux operating systems Strong understanding of microservices architecture and containerization Knowledge of Agile frameworks and principles Experience with Git/GitHub, GitHub Actions, Maven, Jenkins, and Jira Competence with MySQL and SQL databases Strong analytical and problem-solving skills Excellent written and verbal communication skills Ability to collaborate effectively with Product, QA, DevOps, and Agile/Scrum teams Mandatory Skills: Java (Spring) REST APIs Spring Boot and Spring Technologies HTTPS, SFTP, REST API, and SOAP protocols Microservices architecture and containerization Git/GitHub, GitHub Actions, Maven, Jenkins, Jira MySQL and SQL databases Desired Skills: Strong analytical and troubleshooting abilities Excellent communication skills Team collaboration experience within Agile/Scrum environments Roles & Responsibilities: Contribute to technical design and engineering activities Develop strong domain expertise within the project Analyse functional and technical requirements Support architecture and design discussions Collaborate with Architecture and Business teams Participate in development, design, code reviews, and implementation Follow engineering best practices and support continuous improvement initiatives Out of Scope: Creating product requirements Acting as Scrum Master or Product Owner Project Details: Primary focus is on Java backend development.

🏢 Summary: Opportunity for a Senior Java Backend Developer to build and maintain a secure, large-scale public platform based on microservices within the financial services sector. The role focuses on developing business-critical backend services, contributing to architectural decisions, and improving deployment and engineering practices. Ideal for experienced engineers who combine strong Java expertise with architectural thinking and a proactive approach to system optimization. 🗂️ Requirements: 6–10 years of professional software development experience, Strong expertise in Java backend development, Experience with microservices architecture, Understanding of distributed systems, Experience in system design and software architecture, Ability to work with secure, large-scale systems, Experience improving deployment processes and system reliability 📃 Skills: Java, Microservices, DistributedSystems, SystemDesign, SoftwareArchitecture, REST, Git, Maven, Gradle, Python, Cloud, DevOps 🏢 Description: Senior Java Backend Developer 📍 Location: Wrocław, Poland (Hybrid – 3 days onsite) 📈 Experience: 6–10 years We are currently looking for an experienced Java Backend Developer for our client operating in the financial services sector . The successful candidate will join a team responsible for developing and maintaining a secure, large-scale public platform built on a microservices architecture. This role offers the opportunity to work on business-critical systems where reliability, scalability, and security are key priorities. Beyond feature development, the team is focused on addressing challenges related to architecture, deployment practices, and engineering processes. Therefore, we are looking for someone who combines strong hands-on development skills with architectural thinking and a proactive approach to problem-solving. Key Responsibilities Design and develop new backend features and services using Java Maintain and enhance a secure, customer-facing platform Work within a modern microservices ecosystem Contribute to architectural improvements and technical decision-making Help optimize deployment processes, system reliability, and development workflows Identify technical challenges and propose scalable, long-term solutions What We're Looking For 6–10 years of professional software development experience Strong expertise in Java backend development Solid understanding of microservices architecture and distributed systems Experience with system design and software architecture Strong analytical and critical-thinking skills Ability to understand technical concepts deeply and make informed engineering decisions A proactive mindset and willingness to improve existing systems, processes, and practices Nice to Have Experience with Python Exposure to cloud environments and modern DevOps practices This opportunity is particularly suited to engineers who enjoy working on complex backend systems, influencing architectural decisions, and helping teams improve the way software is designed, built, and deployed.

🏢 Summary: Hybrid Java Backend Developer role focused on designing and delivering scalable, production-grade backend services using microservices and cloud-native architectures. The position involves full lifecycle ownership, from requirements and development to deployment and production support, with strong emphasis on system quality, security, and reliability. Work is primarily backend engineering in a hybrid model (3 days onsite in Wrocław). 🗂️ Requirements: 5+ years Java backend development experience, Strong experience with Spring framework, Experience with microservices architecture, Experience with cloud-native architectures, Knowledge of REST APIs and integration patterns, Understanding of system design principles, Experience working in UNIX environments, Scripting skills, Fluent English 📃 Skills: Java, Spring, Microservices, Azure, AKS, REST, UNIX, Scripting 🏢 Description: Java Backend Developer (Hybrid – Wrocław) We’re looking for a Java Backend Developer who enjoys building solid, scalable systems and wants to work on real, production-grade challenges, not just maintenance, but meaningful engineering. This is a hybrid role: 3 days in our Wrocław office, 2 days remote. What you’ll be doing: You’ll be designing and developing backend services that power digital products used by clients and internal teams. Expect real ownership across the full lifecycle - from shaping requirements, through development, testing, deployment, and keeping things running smoothly in production. You’ll work on improving system quality, security, and reliability, making sure our platforms are not just functional but robust and observable. That means helping to spot issues early, digging into root causes, and fixing problems properly - not just patching them. You’ll also contribute beyond code: sharing knowledge, supporting colleagues, and helping us grow a strong engineering culture. What we’re looking for: 5+ years of experience in Java/Spring backend development (ideally in financial services) Strong experience with microservices and cloud-native architectures (Azure AKS is a plus) Solid understanding of REST APIs, integration patterns, and system design Comfortable working in UNIX environments and with scripting Strong communication skills and fluent English Curiosity for new technologies and a mindset focused on long-term, sustainable solutions If you like solving complex problems, taking ownership, and building systems that actually matter in production - we’d like to hear from you.

🏢 Summary: The offer is for an experienced Java Developer to design, develop, and maintain scalable backend systems and microservices in an international, hybrid work environment. The role focuses on building high-performance, secure enterprise applications, contributing to architecture decisions, and supporting CI/CD and DevOps practices. It is suited for engineers experienced in modern Java ecosystems and distributed systems. 🗂️ Requirements: Commercial experience in Java software development, Strong knowledge of Java and Spring Boot, Experience building RESTful APIs and microservices, Knowledge of Spring Framework, Hibernate, and JPA, Experience with relational databases (Oracle or PostgreSQL), Understanding of software design principles and application architecture, Experience with Git, Familiarity with Docker and CI/CD tools, Experience working in Agile (Scrum/Kanban) environments 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, Microservices, Oracle, PostgreSQL, Git, Docker, CICD, Agile, Scrum, Kanban 🏢 Description: 📍 Location: Kraków (Hybrid – 6–8 days per month in the office) 📄 Contract Type: B2B / Employment Contract 🌍 International Environment About the Role We are looking for an experienced Java Developer to join a dynamic team delivering scalable, enterprise-grade solutions. You will be involved in designing, developing, and maintaining modern backend systems, contributing to architecture decisions, and building robust applications that support critical business processes. This is an excellent opportunity for engineers who enjoy working with modern technologies, microservices, cloud-ready solutions, and high-performance distributed systems. Responsibilities Design, develop, and maintain scalable backend applications and microservices using Java technologies. Build and enhance secure, reliable, and high-performing APIs. Participate in system architecture and technical design discussions. Develop high-quality, maintainable, and well-tested code. Collaborate with cross-functional teams to deliver business-critical solutions. Troubleshoot, analyze, and resolve application and production issues. Perform code reviews and contribute to engineering best practices. Support application performance, scalability, and reliability initiatives. Participate in Agile ceremonies, including sprint planning, refinement, and retrospectives. Contribute to CI/CD processes and DevOps practices. Requirements Commercial experience in software development using Java. Strong knowledge of Java and Spring Boot. Experience building RESTful APIs and microservice-based applications. Good understanding of Spring Framework, Hibernate, and JPA. Experience working with relational databases such as Oracle or PostgreSQL. Familiarity with NoSQL databases is a plus. Understanding of software design principles and application architecture. Experience with Git and modern software development practices. Familiarity with Docker and CI/CD tools. Experience working in Agile environments (Scrum/Kanban). Strong analytical and problem-solving skills. Good communication skills and ability to work collaboratively within a team. Nice to Have Experience with cloud platforms such as AWS, Azure, or GCP. Knowledge of Kubernetes and container orchestration. Exposure to frontend technologies such as React, Angular, or JavaScript. Experience with event-driven architectures and messaging systems. Understanding of security best practices in software development. What We Offer Opportunity to work on modern, large-scale enterprise solutions. Long-term projects in an international environment. Flexible hybrid working model. Exposure to modern technologies, cloud solutions, and microservices architecture. Professional growth opportunities and access to technical challenges. Collaborative culture focused on quality, innovation, and continuous improvement. Employment contract or B2B cooperation model.

🏢 Summary: Senior Backend Java Developer role focused on designing and building scalable, high-performance backend systems using Java and Spring Boot in a cloud-native environment. The position involves developing enterprise-grade solutions, ensuring performance and security, and supporting containerized deployments. The role requires strong experience with modern backend technologies and infrastructure tools. 🗂️ Requirements: 8+ years of backend development experience, Strong experience with Java 17+, Strong experience with Spring and Spring Boot, Experience with Spring Security, Experience with SQL databases, Experience with Maven, Experience with Git and CI/CD pipelines, Experience with testing frameworks (JUnit, AssertJ, Hamcrest), Experience with Kubernetes and Helm, Experience with Bash or Shell scripting, Experience with cloud-native applications, Experience in enterprise environments 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, SQL, Maven, Git, CICD, JUnit, AssertJ, Hamcrest, Kubernetes, Helm, Bash, Shell, Docker, PostgreSQL 🏢 Description: Senior Backend Java Developer Location: Warsaw, Poland (hybrid – 2 days/week in the office) About the Role We’re looking for a Senior Backend Java Developer to design and build scalable, high-performance backend systems for international products. You’ll work in a collaborative environment, contribute to architectural decisions, and mentor other engineers. Responsibilities Design, develop, and maintain backend systems using Java 17+ and Spring Boot Ensure scalability, performance, and security of solutions Work with SQL databases (e.g. PostgreSQL) Support deployments using Docker, Kubernetes, and Helm Use Bash/Shell for automation and integration tasks Lead technical discussions and mentor team members Collaborate in Agile (Scrum) teams and communicate in English Requirements Strong experience with Java 17+, Spring / Spring Boot / Spring Security Experience with cloud-native applications Maven, SQL, Git (GitHub, CI/CD) Testing frameworks (JUnit, AssertJ, Hamcrest) Kubernetes, Helm Bash/Shell scripting English B2/C1 Experience in enterprise environments 8+ years of backend development experience Nice to Have PostgreSQL, Hibernate/JPA Kafka, event-driven architecture Microservices architecture Python Knowledge of C or Go CI/CD tools, JIRA Monitoring tools (Grafana, Prometheus, Kibana) Security best practices (OWASP) Qualifications Degree in Computer Science or related field

🏢 Summary: Junior Backend Java Developer role focused on building and maintaining scalable backend systems using modern Java and Spring technologies in an international, Agile environment. The position involves developing secure, high-quality applications and collaborating within a hybrid work model. 🗂️ Requirements: Java 17+, Spring / Spring Boot / Spring Security, Maven, SQL, Git (GitHub, CI/CD basics), Experience with unit testing, English B2/C1, Around 2 years of commercial experience, Degree in Computer Science or related field 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Maven, SQL, Git, GitHub, CICD, UnitTesting 🏢 Description: Junior Backend Java Developer Location: Warsaw, Poland (hybrid – 2 days/week in the office) About the Role We’re looking for a Junior Backend Java Developer to join a team building scalable, modern backend systems for international products. You’ll work in a collaborative environment with a strong focus on learning, ownership, and quality. Responsibilities Develop and maintain backend applications using Java 17+ and Spring Boot Ensure performance, scalability, and security of solutions Work with SQL databases (e.g. PostgreSQL) Support deployments using Docker, Kubernetes, and Helm Use Bash/Shell for automation tasks Collaborate in Agile (Scrum) teams and communicate in English Requirements Java 17+, Spring / Spring Boot / Spring Security Maven, SQL, Git (GitHub, CI/CD basics) Experience with unit testing English B2/C1 Around 2 years of commercial experience Nice to Have PostgreSQL, Hibernate/JPA Kubernetes, Helm Kafka, microservices Bash/Shell or Python CI/CD tools, JIRA Monitoring tools (Grafana, Prometheus) Security basics (OWASP) Qualifications Degree in Computer Science or related field

🏢 Summary: Long-term B2B opportunity for an experienced Java Backend Developer to build and maintain a secure public website based on microservices architecture for a major international investment bank. The role involves developing new features, improving architecture and deployment processes, and contributing to system design. Hybrid work model in Wroclaw with a strong focus on backend development in a Java-based environment. 🗂️ Requirements: 6-10 years of commercial experience in software development, Strong experience in Java backend development, Experience with microservices architecture, Experience in designing and maintaining secure web applications, Knowledge of system architecture and deployment processes, Experience with Python, Ability to work in hybrid model (3 days per week in office) 📃 Skills: Java, Python, Microservices, REST, Spring, SQL, Git, CI/CD 🏢 Description: We are currently looking for talented and experienced Java Developers to join a long-term project with a major international Swiss investment bank operating in the financial sector. 📍 Location: Wroclaw, Poland (Hybrid – 3 days per week from the office) Type of contract: B2B Job Summary: Main technical skillset required is Java . Python is an additional skillset requirement. 6-10 years experience range We need Back End developers to create new features and maintain  a secure public website with microservices infrastructure. There are deficiencies around architecture, deployment, processes and we are looking for someone with both development and design expertise. We would like to hire a person who understands concepts and has good critical thinking. Our tech stack is Java based. Benefits ✅ Stable long-term cooperation with opportunity for extension Opportunity to work with modern technologies in an international environment Professional growth and continuous development opportunities Participation in challenging and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Oferta dotyczy stanowiska Backend Java Developera odpowiedzialnego za rozwój i utrzymanie kluczowych aplikacji biznesowych w oparciu o Java i Spring Boot. Rola obejmuje modernizację istniejących systemów, projektowanie nowych funkcjonalności oraz dbanie o jakość i wydajność kodu w środowisku Scrum. Praca daje możliwość realnego wpływu na rozwój produktów i architektury przy wykorzystaniu nowoczesnego stosu technologicznego. 🗂️ Requirements: Minimum 4 lata doświadczenia jako Backend Java Developer, Bardzo dobra znajomość Java 17+, Bardzo dobra znajomość Spring Boot, Bardzo dobra znajomość Spring Framework, Bardzo dobra znajomość Spring Security, Bardzo dobra znajomość Hibernate, Bardzo dobra znajomość Maven, Bardzo dobra znajomość Git, Doświadczenie z Docker, Doświadczenie z Kubernetes, Doświadczenie w pracy w metodyce Agile/Scrum, Umiejętność pisania czytelnego i testowalnego kodu 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Hibernate, Maven, Git, Docker, Kubernetes, Scrum, Agile 🏢 Description: Poszukujemy doświadczonego Backend Java Developera , który dołączy do zespołu odpowiedzialnego za rozwój i utrzymanie kluczowych aplikacji biznesowych. Jeśli masz minimum 4 lata doświadczenia w tworzeniu aplikacji backendowych w Javie, cenisz wysoką jakość kodu i dobrze odnajdujesz się w środowisku Scrum – zapraszamy do aplikowania. Twoje zadania Rozwój i utrzymanie aplikacji backendowych opartych o Java i Spring Boot. Modernizacja oraz aktualizacja istniejących rozwiązań do najnowszych wersji frameworków. Projektowanie i implementacja nowych funkcjonalności zgodnie z wymaganiami biznesowymi. Refaktoryzacja kodu oraz optymalizacja wydajności aplikacji. Udział w code review oraz dbanie o jakość i spójność kodu. Współpraca z zespołem w metodyce Scrum. Analiza i rozwiązywanie zgłoszeń produkcyjnych oraz wsparcie utrzymania systemów. Nasze wymagania Minimum 4 lata doświadczenia na stanowisku Backend Java Developera. Bardzo dobra znajomość: Java 17+ Spring Boot Spring Framework Spring Security Hibernate Maven Git Doświadczenie w pracy z Dockerem oraz Kubernetes. Umiejętność pisania czytelnego, wydajnego i dobrze testowalnego kodu. Doświadczenie w pracy w metodykach Agile/Scrum. Samodzielność, odpowiedzialność oraz nastawienie na współpracę zespołową. Mile widziane Doświadczenie z modernizacją starszych aplikacji i migracją do nowszych wersji frameworków. Znajomość dobrych praktyk projektowych oraz wzorców projektowych. Oferujemy Udział w rozwoju kluczowych systemów biznesowych. Pracę z nowoczesnym stosem technologicznym. Możliwość realnego wpływu na rozwój produktów i architekturę rozwiązań. Przyjazną atmosferę oraz współpracę z doświadczonym zespołem. Elastyczną formę współpracy oraz możliwość pracy zdalnej.

🏢 Summary: Oferta dotyczy rozwoju i utrzymania aplikacji backendowych w Javie z wykorzystaniem Spring Boot w środowisku Scrum. Rola obejmuje modernizację istniejących systemów, implementację nowych funkcjonalności oraz optymalizację wydajności i jakości kodu. Poszukiwany jest doświadczony Backend Java Developer z minimum 4-letnim doświadczeniem i znajomością nowoczesnych technologii backendowych. 🗂️ Requirements: Minimum 4 lata doświadczenia jako Backend Java Developer, Znajomość Java 17+, Znajomość Spring Boot, Znajomość Spring Framework, Znajomość Spring Security, Znajomość Hibernate, Znajomość Maven, Znajomość Git, Doświadczenie z Docker, Doświadczenie z Kubernetes, Umiejętność pisania wydajnego i testowalnego kodu, Doświadczenie w Agile/Scrum 📃 Skills: Java, Spring, SpringBoot, SpringSecurity, Hibernate, Maven, Git, Docker, Kubernetes, Scrum, Agile 🏢 Description: Poszukujemy doświadczonego Backend Java Developera , który dołączy do zespołu odpowiedzialnego za rozwój i utrzymanie kluczowych aplikacji biznesowych. Jeśli masz minimum 4 lata doświadczenia w tworzeniu aplikacji backendowych w Javie, cenisz wysoką jakość kodu i dobrze odnajdujesz się w środowisku Scrum – zapraszamy do aplikowania. Twoje zadania Rozwój i utrzymanie aplikacji backendowych opartych o Java i Spring Boot. Modernizacja oraz aktualizacja istniejących rozwiązań do najnowszych wersji frameworków. Projektowanie i implementacja nowych funkcjonalności zgodnie z wymaganiami biznesowymi. Refaktoryzacja kodu oraz optymalizacja wydajności aplikacji. Udział w code review oraz dbanie o jakość i spójność kodu. Współpraca z zespołem w metodyce Scrum. Analiza i rozwiązywanie zgłoszeń produkcyjnych oraz wsparcie utrzymania systemów. Nasze wymagania Minimum 4 lata doświadczenia na stanowisku Backend Java Developera. Bardzo dobra znajomość: Java 17+ Spring Boot Spring Framework Spring Security Hibernate Maven Git Doświadczenie w pracy z Dockerem oraz Kubernetes. Umiejętność pisania czytelnego, wydajnego i dobrze testowalnego kodu. Doświadczenie w pracy w metodykach Agile/Scrum. Samodzielność, odpowiedzialność oraz nastawienie na współpracę zespołową. Mile widziane Doświadczenie z modernizacją starszych aplikacji i migracją do nowszych wersji frameworków. Znajomość dobrych praktyk projektowych oraz wzorców projektowych.

🏢 Summary: Contract role for a Senior Java Backend Developer to design and build scalable backend systems and microservices for a large enterprise digital platform in a hybrid model in Poland. The position focuses on developing RESTful services, integrating external systems, and optimizing distributed applications. Requires strong experience in Java-based microservices architecture and modern DevOps tools. 🗂️ Requirements: 7+ years of Java development experience, Strong expertise in Java 8+, Experience with Spring and related frameworks, Hands-on microservices development, Experience with RESTful APIs and web services, Experience with Kafka or distributed messaging systems, Understanding of SOA principles, Experience with relational or NoSQL databases, Experience with containerization and orchestration, Knowledge of React or advanced JavaScript, Proficiency with Git, Maven, Jenkins, Registration in Poland as self-employed consultant 📃 Skills: Java, Spring, SpringBoot, SpringMVC, JPA, Hibernate, REST, SOAP, HTTP, JSON, XML, Kafka, SQL, NoSQL, Docker, Git, Maven, Jenkins, React, JavaScript 🏢 Description: Dear Consultant, We are seeking an experienced Senior Java Backend Developer to design and build scalable backend systems and microservices for a large enterprise digital platform. Send CV if you are interested and registered in Poland as a self-employed Consultant. (marcillina.tietjen@dcvtechnologies.co.uk) Senior Java Backend Developer – Microservices (Contract) Location: Gdansk or Warsaw, Poland Work Mode: Hybrid – 1 day onsite per week Seniority: 7+ years experience Key Responsibilities • Design and implement backend systems and microservices• Develop RESTful APIs and web services• Participate in architecture reviews and optimisation initiatives• Debug, profile, and optimise applications• Integrate external APIs and services• Write and maintain technical documentation Required Skills & Experience • Strong expertise in Java 8+ • Frameworks: Spring, Spring Boot, Spring MVC, JPA, Hibernate • Microservices development using HTTP, REST, JSON, XML • Messaging and distributed systems experience ( Kafka ) • Strong understanding of SOA principles and web services (REST & SOAP) • Experience with Relational or NoSQL databases • Exposure to containerisation & orchestration technologies • Experience with React or advanced JavaScript • Tools: Docker, Git, Maven, Jenkins