Java Developer (m/f/d)

🏢 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: Backend Developer role focused on designing, building, and maintaining scalable Java and Kotlin-based applications and microservices within an international team. The position involves developing high-quality backend systems, collaborating with cross-functional teams, and optimizing distributed systems performance. The role emphasizes clean code, modern frameworks, and agile delivery practices. 🗂️ Requirements: 5+ years of backend development experience with Java 8+ and Kotlin, Strong knowledge of Spring Framework and Spring Boot, Experience building RESTful APIs and microservices, Experience with SQL and NoSQL databases, Understanding of Agile/Scrum methodologies 📃 Skills: Java, Kotlin, Spring, SpringBoot, REST, Microservices, SQL, NoSQL, PostgreSQL, MongoDB, Agile, Scrum 🏢 Description: We are looking for skilled Java & Kotlin Developers to join our growing technology team in Poland. As part of an international development group, you’ll design, build, and maintain scalable backend systems using Java and modern frameworks. You’ll collaborate closely with cross-functional teams to deliver high-quality, reliable, and efficient software solutions. Key Responsibilities Design, develop, and maintain Java-based applications and microservices. Write clean, efficient, and testable code following best practices and coding standards. Collaborate with front-end developers , DevOps engineers , and QA teams to ensure seamless integration and delivery. Participate in code reviews , architecture discussions, and agile ceremonies. Contribute to technical documentation and continuous improvement of development processes. Troubleshoot and optimize performance across distributed systems. Requirements 5+ years of experience in backend development using Java 8+ Kotlin . Strong understanding of Spring Framework / Spring Boot . Experience with RESTful APIs , microservices , and SQL / NoSQL databases (e.g., PostgreSQL, MongoDB). Knowledge of Agile / Scrum methodologies. Good command of English (B2 or higher) – Polish language skills are a plus. Nice to Have Experience with cloud platforms (AWS, Azure, or GCP). Familiarity with message brokers (Kafka, RabbitMQ). Knowledge of unit testing and test automation frameworks (JUnit, Mockito). Interest in DevOps or system design concepts. How to Apply If you’re passionate about building high-quality Java applications and want to be part of a dynamic engineering team, send your CV

🏢 Summary: Java Developer role focused on designing and maintaining scalable microservices-based backend systems using Spring technologies. The position involves building high-performance RESTful services, improving existing systems, and collaborating closely with cross-functional teams in a hybrid work model. 🗂️ Requirements: Minimum 2 years of experience with Java, Hands-on experience with microservices architecture, Experience with Spring and Spring Boot, Knowledge of REST APIs and integration patterns, Ability to work onsite in Warsaw 2 days per week 📃 Skills: Java, Microservices, Spring, SpringBoot, REST, Kubernetes, AWS, Azure, GCP, Kafka, RabbitMQ 🏢 Description: We’re looking for a Java Developers with solid experience in microservices architecture to join our growing team in Łódź. If you enjoy building scalable backend systems and like collaborating face-to-face a couple of days a week, this role is for you. Responsibilities Design, develop, and maintain Java-based microservices Build scalable, high-performance backend solutions Collaborate with product owners, architects, and other developers Write clean, testable, and well-documented code Participate in code reviews and technical discussions Support and improve existing systems Requirements Experience with Java minimum 2 years + Hands-on experience with microservices architecture Experience with Spring / Spring Boot Knowledge of REST APIs and integration patterns Ability to work onsite in Warsaw 2 days per week Nice to Have Experience with Kubernetes Cloud experience (AWS, Azure, or GCP) Knowledge of messaging systems (Kafka, RabbitMQ) Experience working in Agile/Scrum teams What We Offer Hybrid work model (2 days onsite in Warsaw) Competitive salary and benefits Modern tech stack and real impact on products Friendly, collaborative team culture Opportunities for learning and professional growth

🏢 Summary: Senior Java Developer role focused on building and maintaining Java-based microservices, APIs, and data integration solutions in a hybrid B2B setup. The position involves ETL processes, database operations, and collaboration in a DevOps-driven environment. Experience with Java, Spring Boot, Kafka, PostgreSQL, and cloud-native tools is required. 🗂️ Requirements: 8+ years of software development experience, Java, Spring Boot, Microservices architecture, API development, Kafka, PostgreSQL, SQL, DataStage, Kubernetes, Jenkins, Bitbucket, DevOps experience, Fluent English 📃 Skills: Java, Spring, Kafka, PostgreSQL, SQL, DataStage, Kubernetes, Jenkins, Bitbucket, Microservices, APIs, ETL, DevOps 🏢 Description: Senior Java Developer Location: Hybrid (2 days/week from Warsaw, Gdańsk, Gdynia, or Łódź) Contract: B2B via Experis Start Date: ASAP / up to 30 days notice period Responsibilities Develop and maintain data integration solutions and data flow processes Build and enhance Java-based microservices and APIs Support ETL processes and database operations Collaborate in a DevOps-driven environment Requirements 8+ years of experience in software development Strong experience with Java and Spring Boot Experience with microservices architecture and APIs Knowledge of Kafka Experience with PostgreSQL and SQL Knowledge of DataStage (ETL) Familiarity with Kubernetes, Jenkins, and Bitbucket DevOps mindset Strong communication and teamwork skills Fluent English Nice to Have Experience in the banking or financial industry Benefits Medicover healthcare Multisport card Group life insurance Access to e-learning platform

🏢 Summary: Junior Java Engineer role focused on developing and maintaining backend services and microservices in a cloud-based environment within a Scrum team. The position involves hands-on Java development, testing, and support under senior mentorship, with exposure to modern cloud technologies. Hybrid work model with client interaction and opportunities to grow in cloud engineering. 🗂️ Requirements: 1+ years of software development experience or strong junior-level hands-on practice, Hands-on experience with Java, Basic knowledge of object-oriented programming, Basic knowledge of RESTful APIs, Basic knowledge of Git or version control systems, Basic knowledge of SQL, Familiarity with unit testing frameworks, Understanding of software development lifecycle, English proficiency at B2 level, Ability to self-manage tasks and meet deadlines 📃 Skills: Java, OOP, REST, Git, SQL, JUnit, Mockito, Scrum, GCP, Spring, SpringBoot, Microservices, Kotlin 🏢 Description: Are you passionate about Java and eager to grow your skills as a Junior Java Engineer in a dynamic, cloud-focused environment? Join our international team of experienced developers and architects, where you’ll learn from senior engineers and mentors while contributing to the development and maintenance of modern cloud-based applications. We value transparency, autonomy, and continuous improvement, and we’re looking for a motivated self-starter ready to take ownership and grow within a Scrum team. This role offers a hybrid model, with 3 days per week working from the client's office in Kraków, Poland. Ready to launch your career in cloud engineering? Apply now and join our global team! Responsibilities Support the development, testing, and maintenance of backend services and microservices using Java Implement small features and bug fixes under the guidance of senior engineers Write clean, readable, maintainable, and well-tested code following team standards and best practices Participate in code reviews as a learner and apply received feedback Assist in troubleshooting and resolving technical issues together with the team Take part in Agile ceremonies (daily stand-ups, sprint planning, reviews, retrospectives) Communicate with stakeholders and team members to clarify requirements and implementation details Contribute to technical documentation and knowledge sharing within the team Requirements 1+ years of experience in software development or strong junior-level hands-on practice Hands-on experience with Java Basic knowledge of object-oriented programming, RESTful APIs, Git/version control, and SQL Familiarity with unit testing (e.g. JUnit, Mockito) Understanding of the software development lifecycle (analysis, design, implementation, testing, support) English level B2 with readiness for client-facing communication Ability to self-manage tasks, prioritize work, and meet deadlines Nice to have Basic knowledge or initial experience with Google Cloud Platform (GCP) Familiarity with Spring / Spring Boot Exposure to microservices architecture Experience or interest in Kotlin 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.

🏢 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: Junior Java/Kotlin Developer role focused on building and maintaining microservices for a large telecommunications project, with training in Salesforce and cloud technologies. The position involves working in an Agile team using modern backend technologies and contributing to API integrations and SaaS platforms. Hybrid work model with collaboration across international teams. 🗂️ Requirements: Hands-on experience with Java, Foundational knowledge of Kotlin, Basic experience with Spring Boot, Experience with RESTful APIs, Familiarity with Google Cloud Platform, Working knowledge of SQL, Working knowledge of Git, Willingness to learn and work with Salesforce, Ability to communicate in English (B2+) 📃 Skills: Java, Kotlin, Spring, SpringBoot, REST, GCP, SQL, Git, Salesforce, CPQ, Zuora, Microservices, Agile 🏢 Description: We are looking for an ambitious Junior Java/Kotlin Developer , eager to learn and work with Salesforce, to join our team. In this role, you’ll be trained and mentored while contributing to a major telecommunications project for a global technology leader, working with modern technologies like Java, Kotlin, Spring, and Google Cloud Platform. You’ll collaborate closely with a diverse team in a dynamic, Agile environment, focusing on microservices, API integrations, and SaaS products such as Salesforce and Zuora. This role offers a hybrid model, with 3 days per week working from the client's office in Gdansk, Krakow, Warsaw or Wroclaw. While standard Polish business hours apply, occasional flexibility for evening meetings (e.g., around 18:00) to coordinate with US teams is required. If you’re passionate about launching your career in a top-tier engineering setting, this is the perfect opportunity for you. Responsibilities Learn and grow under the guidance of senior engineers developing a strong understanding of the project’s domain architecture and codebase Assist in developing testing and maintain microservices using Java and Kotlin Onboard to Salesforce especially Salesforce CPQ for product management tasks Write clean maintainable and well-tested code for assigned features and bug fixes Participate in code reviews and collaborate with the team in all Agile ceremonies Help troubleshoot and resolve technical issues with mentor support Contribute to team documentation and knowledge sharing Proactively tackle a steep learning curve and adapt quickly to complex large-scale systems and cloud technologies Requirements Hands-on experience with Java and foundational knowledge of Kotlin Basic experience with Spring Boot and RESTful APIs Familiarity with Google Cloud Platform (GCP) Working knowledge of SQL and Git Eagerness to learn and work with Salesforce and other SaaS products Strong desire to learn grow and adapt quickly in a fast-paced environment Good communication and teamwork skills Willingness to occasionally adjust working hours for collaboration with international teams Ability to communicate effectively in English both spoken and written for daily collaboration 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: Junior Java Developer role focused on developing and maintaining Java-based microservices in a collaborative Agile team. The position involves implementing features, fixing bugs, and contributing to high-quality, continuously delivered software. It requires working in a hybrid model with strong emphasis on clean code and modern development practices. 🗂️ Requirements: Minimum 1 year of experience with Java, Knowledge of Google Cloud Platform (GCP), Proficiency in Maven, Proficiency in Hibernate, Proficiency in Spring, Understanding of REST/WebServices, Knowledge of design patterns, Experience with Test-Driven Development (TDD), Familiarity with version control systems, Experience using IDEs 📃 Skills: Java, GCP, Maven, Hibernate, Spring, REST, WebServices, Microservices, TDD, Git, DesignPatterns, IDEs 🏢 Description: We are seeking a Junior Java Developer to join our progressive team. You will be working in a project team that demands technical excellence and whose members are expected to hold each other accountable for the overall success of the output. The team strives to enable the client's organization to satisfy business customers through the continuous delivery of valuable and high-quality software that drives business performance. If you're ready to make an impact in a dynamic environment, we want to hear from you! For this role, we consider candidates residing in Kraków, Wrocław or Gdańsk, due to a hybrid mode of work, with 3 days per week working from the office. Responsibilities: Support the development, testing, and maintenance of microservices using Java Implement small features and bug fixes with guidance from senior engineers Write clean, readable, and maintainable code, following team standards Participate in code reviews as a learner, receiving and applying feedback Assist in troubleshooting and resolving technical issues together with the team Take part in Agile ceremonies (daily stand-ups, planning, reviews, retrospectives) Contribute to technical documentation and knowledge sharing within the team Requirements: Knowledge of Java programming language with at least 1 year of experience Familiarity with Google Cloud Platform (GCP) Proficiency in Maven, Hibernate, and Spring Understanding of WebServices/REST for API interactions Knowledge in design patterns and experience with Test-Driven Development (TDD) Familiarity with development tools such as version control and IDEs English level B1+ for effective communication We offer/Benefits: 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.

🏢 Summary: Long-term B2B opportunity for a Senior Java Developer to modernize and develop a large-scale CRM platform, focusing on migrating a legacy JBoss monolith to a Spring Boot-based domain-driven architecture. The role involves backend development, system modernization, database migration, and collaboration within cross-functional teams. Work is delivered in a hybrid model within an established development department. 🗂️ Requirements: Commercial experience with Java 21+, Experience with REST API development, Strong knowledge of Spring and Spring Boot, Experience with unit and integration testing (Mockito, Testcontainers, JUnit 5), Proficiency with Git, Experience using Swagger, Ability to work with IntelliJ, Experience with JBoss or JEE5, Knowledge of SQL (Postgres or Sybase), English level B2/C1 📃 Skills: Java, REST, Spring, SpringBoot, JUnit, Mockito, Testcontainers, Git, Swagger, IntelliJ, JBoss, JEE, SQL, Postgres, Sybase, React, Kubernetes, Jenkins, JBPM, Swing, JavaFX 🏢 Description: Client: A leading German telecommunications and IT corporation Start date: ASAP Locations: Warszawa, Poznań, Lublin Work model: hybrid with 3 days/week from the office Engagement: Long-term Form of cooperation: B2B, full-time Working hours: Standard business hours About our client: A leading German telecommunications and IT corporation, recognized for innovative solutions in cloud computing, web hosting, and internet services, is expanding its European Technology Center in Poland. The company is building strong development teams in Warsaw, Poznan, and Lublin to support its long-term digital transformation initiatives. About the project & team: You will join an established development team consisting of three experienced Java developers and one test manager. This team is part of a larger department that includes over 20 developers across several cross‑functional teams. The department is responsible for the company’s core CRM platform, which includes multiple frontends (Java Swing, JavaFX, React) and numerous backend services built in technologies such as JBoss 4/7, WildFly 10, Spring Boot, and Spring Batch. The primary focus of your future team is the modernization of the CRM system, including the migration of business logic from a legacy monolithic JBoss 4 application to a modern, domain‑driven architecture using Spring Boot. Future development includes building new React-based frontends, enhancing backend services, and modernizing database layers (e.g., Sybase migrations). You will work within a stable, collaborative setup, contributing to high-impact solutions used across the organization. Must‑have skills: Java >21 REST Spring / Spring Boot Unit- and Integrations-Tests (Mockito, Testcontainers, JUnit 5) Git Swagger IntelliJ Nice to have skills: Kubernetes JEE5 (JBOSS) SQL (Optimal: Postgres, Sybase) Java Swing or JavaFX JBPM Jenkins (CI/CD) English Level: B2/C1 Responsibilities: Develop and maintain backend services within a large CRM platform. Migrate business logic from a monolithic JBoss 4 system to Spring Boot microservices. Participate in building new frontends (React) and extending backend functionalities. Contribute to database modernization, including migration of Sybase logic. Collaborate closely with developers and the team’s test manager. Ensure high code quality through unit and integration testing. Use best practices in CI/CD, version control, and modern development standards. What We Offer: Competitive compensation: up to 120 PLN/h netto on a B2B contract Flexible settlements: Payments issued in your preferred form Fast invoicing: Short 14‑day payment terms Comprehensive healthcare: Extended private medical care package My Benefit platform: Access to a cafeteria system including Multisport cards and prepaid vouchers (e.g., IKEA, Zalando, Notino, and more)

🏢 Summary: B2B contract opportunity for an experienced Fullstack Developer to build and maintain microservices-based financial platforms using Java and Angular in a hybrid work model (3 days onsite in Wroclaw). The role focuses on backend development with Spring Boot and REST APIs, along with modern Angular front-end implementation. 🗂️ Requirements: Strong proficiency in Java 21, Extensive experience with Spring and Spring Boot, Solid knowledge of Angular 16+, Experience in RESTful API design and development, Experience with microservices architecture, Experience with Git version control, Availability to work hybrid (3 days onsite in Wroclaw), Ability to work on B2B contract 📃 Skills: Java, Spring, SpringBoot, Angular, REST, Microservices, Git 🏢 Description: We are looking for a talented and experienced Fullstack Developer to join our growing team at a global leader in financial services platforms. Work mode: Hybrid, 3 days from office in Wroclaw, Poland Type of contract: Contract: B2B only ( 1 year with extensions) Mandatory Skills: Strong proficiency in Java programming language ( 21 version) Extensive experience with Spring & Spring Boot framework Solid understanding of Angular for front-end development ( 16 version and higher) Proficient in RESTful API design and development. Microservices Experience with version control systems, preferably Git. Benefits: Collaborative and supportive team culture Opportunity to work with global teams and stakeholders Exposure to innovative and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk