Senior Software Engineer (Java)

🏢 Summary: Role for a Regular Java Developer (3–6+ years) focused on designing and implementing modern, scalable backend and distributed systems in Agile teams. The position involves architectural decisions, technology selection, cloud-based deployments, and ensuring code quality, testing, and security. The engineer contributes to building reliable microservices and backend solutions using contemporary frameworks and tools. 🗂️ Requirements: 3–6+ years of commercial experience with Java, Strong knowledge of Spring or Spring Boot, Experience with Apache Kafka, Practical experience with Kubernetes, Experience with Hibernate or MyBatis, Experience with relational or NoSQL databases, Experience with at least one cloud platform: AWS, Google Cloud, Azure, or OpenShift, Experience in building scalable distributed systems, Understanding of backend architecture and design patterns, Experience working in Agile (Scrum) environments 📃 Skills: Java, Spring, SpringBoot, Kafka, Kubernetes, Hibernate, MyBatis, SQL, NoSQL, AWS, GCP, Azure, OpenShift, Scrum, Microservices 🏢 Description: Poszukujemy osoby doświadczonej w roli Regular Java Developer (3-6y+) / Software Engineer , która dołączy do zespołów realizujących nowoczesne, skalowalne rozwiązania. Zakres obowiązków Projektowanie, architektura oraz wdrażanie nowoczesnych rozwiązań backendowych Dobór i implementacja narzędzi, frameworków oraz wzorców architektonicznych Budowanie skalowalnych i niezawodnych systemów rozproszonych Aktywne śledzenie trendów technologicznych i wdrażanie innowacyjnych rozwiązań Dzielenie się wiedzą i dobrymi praktykami w zespole oraz w organizacji Praca w zespołach Agile (Scrum), udział w planowaniu i refinementach Dbałość o jakość kodu, testy oraz bezpieczeństwo aplikacji Wymagania techniczne (Must have) Bardzo dobra znajomość Java (3-6y+) Doświadczenie w pracy z Apache Kafka Praktyczna znajomość Kubernetes Frameworki: Spring / Spring Boot Doświadczenie z ORM: Hibernate, MyBatis Praca z relacyjnymi i/lub NoSQL bazami danych Doświadczenie w pracy z chmurą (minimum jedna z): AWS / Google Cloud / Azure / OpenShift Mile widziane (Nice to have) Frontend: ReactJS / Redux, React Native, Angular Konteneryzacja: Docker Wyszukiwarki i silniki indeksujące: ElasticSearch, SOLR Systemy kolejkowe i message brokers Migracje i wersjonowanie schematów DB: Flyway, Liquibase

🏢 Summary: Senior Java Developer role focused on building and maintaining Java-based cloud applications, integrating APIs and microservices, and ensuring application performance and code quality in an Agile environment. The position involves collaboration with multidisciplinary teams and participation in code reviews using modern Java and cloud technologies. 🗂️ Requirements: Proven experience in Java development, Experience with AWS cloud services, Knowledge of Agile development practices, Experience with API integration, Experience with microservices, Ability to perform testing and ensure code quality, Ability to identify and resolve performance issues 📃 Skills: Java, AWS, Agile, API, Microservices, Spring, Hibernate, DevOps 🏢 Description: We are looking for a Senior Java Developer with solid experience in Java and Cloud. The ideal candidate should have exceptional skills in developing and implementing solutions using the latest technologies. Main Responsibilities: - Develop and maintain Java-based applications in cloud environments. - Collaborate with multidisciplinary teams to design and implement robust solutions. - Perform testing and ensure code quality. - Participate in code reviews and provide constructive feedback. - Identify and resolve application performance issues. Key Requirements: - Proven experience in Java development. - Familiarity with cloud services (AWS). - Knowledge of Agile development practices. - Skills in API integration and microservices. - Ability to solve problems effectively. Desirable: - Experience with DevOps tools. - Familiarity with Java frameworks such as Spring or Hibernate. - Relevant certifications in Java or Cloud.

🏢 Summary: The offer is for a Senior Java Developer to design, develop, and maintain Java-based applications in AWS cloud environments. The role involves building microservices, integrating APIs, ensuring code quality, and resolving performance issues within Agile teams. It focuses on delivering robust, scalable cloud-native solutions using modern Java technologies. 🗂️ Requirements: Proven experience in Java development, Experience with AWS cloud services, Experience developing microservices, Experience with API integration, Knowledge of Agile methodologies, Experience with code testing and code reviews, Ability to troubleshoot and resolve performance issues 📃 Skills: Java, AWS, Spring, Hibernate, Microservices, API, Agile, DevOps 🏢 Description: We are looking for a Senior Java Developer with solid experience in Java and Cloud. The ideal candidate should have exceptional skills in developing and implementing solutions using the latest technologies. Main Responsibilities: Develop and maintain Java-based applications in cloud environments. Collaborate with multidisciplinary teams to design and implement robust solutions. Perform testing and ensure code quality. Participate in code reviews and provide constructive feedback. Identify and resolve application performance issues. Key Requirements: Proven experience in Java development. Familiarity with cloud services (AWS). Knowledge of Agile development practices. Skills in API integration and microservices. Ability to solve problems effectively. Desirable: Experience with DevOps tools. Familiarity with Java frameworks such as Spring or Hibernate. Relevant certifications in Java or Cloud.

🏢 Summary: Senior Java Developer role focused on designing and implementing enterprise-grade backend solutions using modern architecture principles. The position emphasizes high code quality, performance, security, and collaboration within a distributed team. The role involves working with Java 17+, Spring ecosystem, databases, and event-driven systems. 🗂️ Requirements: Minimum 5 years of commercial software development experience, Very good knowledge of Java 17+, Strong understanding of object-oriented design patterns, Experience with Spring MVC and Spring Data, Experience with Apache Kafka, Ability to design relational and non-relational databases (MS SQL, Oracle, Elasticsearch, Redis), Knowledge of software engineering best practices, English proficiency for technical documentation, Ability to work effectively in a distributed team 📃 Skills: Java, Spring, SpringMVC, SpringData, Kafka, MSSQL, Oracle, Elasticsearch, Redis, OOP, UML, Docker, Kubernetes, Azure, JavaScript, React, Python 🏢 Description: We are looking for an experienced Senior Java Developer with at least 5 years of commercial experience to join a team working on enterprise-grade backend solutions. The role focuses on designing and implementing software in a modern architecture, with a strong emphasis on code quality, performance, security, and effective collaboration within a distributed team. Responsibilities Design and implement software using hexagonal architecture. Develop backend solutions using Java 17+ and the Spring ecosystem. Ensure high code quality and compliance with agreed development standards. Analyse system performance, security, and stability, and propose improvements. Design and optimise data structures for relational and non-relational databases. Collaborate with a distributed team, participate in technical analysis, code reviews, and solution design. Identify technical challenges and propose improvements to architecture and implementation. Requirements Minimum 5 years of commercial software development experience. Very good knowledge of Java 17+. Strong understanding of object-oriented design patterns and software engineering best practices. Experience with the Spring stack, especially Spring MVC and Spring Data. Knowledge of Apache Kafka. Ability to design databases: relational: MS SQL, Oracle, non-relational: Elasticsearch, Redis. English skills sufficient to work with technical documentation. Strong analytical and creative problem-solving skills. Excellent communication skills and ability to work effectively in a distributed team. Nice to have Knowledge of scripting/frontend technologies such as JavaScript, React, Python. Experience working in an Azure cloud environment. Familiarity with Kubernetes and Docker. Ability to design system architecture and prepare High-Level Design (HLD) documentation. Knowledge of UML and flow diagrams.

🏢 Summary: Senior Backend Engineer role focused on designing and developing scalable, reliable backend services using Java. The position involves working in a cross-functional team to build high-performance systems, improve architecture, and support CI/CD and production environments. 🗂️ Requirements: 5+ years Backend Engineering experience, Strong Java proficiency, Solid knowledge of databases and SQL, Experience with RESTful APIs, Experience with microservices architecture, Experience with high-load systems, Experience with Docker and Kubernetes, Experience with AWS or GCP, Knowledge of CI/CD pipelines, Understanding of Agile practices 📃 Skills: Java, SQL, REST, Microservices, Docker, Kubernetes, AWS, GCP, CI/CD, Golang, Python 🏢 Description: We are looking for a Senior Backend Engineer with strong Java experience to help us design and develop scalable solutions. You will work in a cross-functional team, building reliable services and contributing to the continuous improvement of our systems. This role is ideal for someone who enjoys solving complex problems and driving technical excellence. 💼 Responsibilities: Design, develop, and maintain backend features and services. Collaborate with teams to define requirements and integrate systems. Ensure performance, scalability, and reliability of applications. Contribute to CI/CD processes and support production systems. Write clear documentation and share knowledge within the team. ✅ Requirements: 5+ years of experience as a Backend Engineer, with strong Java skills (Golang/Python is a plus). Solid understanding of databases and SQL. Experience with RESTful API design, microservices, and high-load systems. Familiarity with Docker, Kubernetes, and cloud environments (AWS/GCP). Knowledge of CI/CD pipelines and Agile practices. Strong problem-solving and communication skills. 🎁 We offer: Stable employment in a fast-growing company. Flexible and remote-friendly working model. Health and wellbeing benefits. Learning and development opportunities. Modern equipment and comfortable work environment.

🏢 Summary: Senior Java Developer role in an agile, international team focused on designing and building cloud-based backend and fullstack solutions. The position involves architecting scalable systems, ensuring high code quality, and contributing to CI/CD and DevOps practices. The role also includes technical leadership and collaboration with cross-functional teams to deliver secure, high-performance applications. 🗂️ Requirements: Expert knowledge of Java for backend and fullstack development, Experience architecting cloud-based SaaS solutions, Proficiency in automated testing and CI/CD pipelines, Experience with version control systems, Ability to deliver secure and scalable code, Bachelor’s degree in Computer Science, Engineering or related field with 5+ years of experience OR 9+ years of relevant industry experience 📃 Skills: Java, SaaS, CI/CD, Git, AWS, GCP, Azure, Docker, Kubernetes, TypeScript, Python 🏢 Description: About the Role: We are looking for a Senior Java Developer to join an agile, international engineering team working on cloud-based solutions serving diverse industries. As a technical leader, you will design, build, and maintain robust backend and fullstack systems, impacting both product performance and business outcomes. Must Have Expert knowledge of Java (backend/fullstack web development) Experience architecting cloud-based solutions (SaaS platforms or similar) Proficiency in automated testing, deployment pipelines, version control, and CI/CD practices Strong command of English for daily teamwork in multicultural environments Demonstrated ability to deliver secure, scalable, high-quality code Bachelor’s degree in Computer Science, Engineering, or related field with 5+ years of professional experience, OR 9+ years’ relevant industry experience (without degree) Nice to Have Exposure to other technologies (TypeScript, Python, etc.) Experience working with multiple data models and integrating acquired codebases Previous engagement in Agile/Scrum teams (sprint planning, retrospectives, hackathons) Background in industries like energy, IoT, finance, or regulated environments Familiarity with modern cloud platforms (AWS, GCP, Azure) and DevOps practices (Docker, Kubernetes) Your Profile Tech Enthusiast: Keen to learn and apply emerging technologies and best practices Analytical Thinker: Able to define requirements and design effective solutions to complex challenges Product Mindset: Understands how technical decisions influence user experience and business drivers Team Player: Works well in autonomous, distributed teams and supports collaborative engineering culture Key Responsibilities Design and develop Java-based backend and fullstack features for cloud-based applications Contribute to scalable, unified system architectures and help integrate diverse platforms and technologies Write and maintain high-performance, secure code and automated tests to ensure product quality Participate in sprint planning, code reviews, retrospectives, and technical discussions Work closely with product managers and business stakeholders to align technical development with commercial goals Mentor junior engineers and promote continuous improvement in team processes Ready for your next challenge? Send your CV detailing your experience in Java, cloud technologies, and agile teams. Tell us about your approach to system architecture and cross-team collaboration!

🏢 Summary: The role involves designing, developing, testing, and maintaining complex Java-based systems with a focus on building new functionalities and supporting existing components. You will work with modern cloud and container technologies, contribute to architectural decisions, and ensure high code quality in an event-driven environment. The position includes active participation in Agile processes and close collaboration with architects and cross-functional teams. 🗂️ Requirements: Proficient in Java 17+, Experience with Spring Framework, Experience with Hibernate, Knowledge of SQL, Experience with Oracle databases, Experience with JUnit or similar testing frameworks, Experience with Docker, Experience with OpenShift, Experience with AWS or Azure, Experience with event-driven systems, Practical experience with Kafka 📃 Skills: Java, Spring, Hibernate, SQL, Oracle, JUnit, Docker, OpenShift, AWS, Azure, Kafka 🏢 Description: Jako Senior Java Developer będziesz odpowiedzialny/a za: Projektowanie, rozwój, testowanie i debugowanie nowych funkcjonalności w złożonym systemie Rozwijanie oraz utrzymanie istniejących komponentów Wsparcie architektów w budowaniu długoterminowej wizji technologicznej Tworzenie dokumentacji technicznej i prototypów Analizę problemów w środowiskach developerskich i produkcyjnych Przekładanie wymagań biznesowych na rozwiązania techniczne Dbanie o jakość kodu i standardy programistyczne Udział w ceremoniach Agile (planowanie, demo) Wymagania (must-have) Bardzo dobra znajomość Java (min. 17) Doświadczenie z Spring Framework, Hibernate Znajomość SQL / Oracle Doświadczenie z testami ( JUnit lub podobne ) Znajomość konteneryzacji ( Docker, OpenShift ) Doświadczenie z chmurą ( AWS lub Azure ) Praca z systemami event-driven ( Kafka mile widziana jako must praktyczny ) Bardzo dobra znajomość języka angielskiego (B2+) Umiejętność analitycznego myślenia i rozwiązywania problemów Dobra organizacja pracy i zarządzanie czasem Wysokie kompetencje interpersonalne Mile widziane Znajomość ElasticSearch / Solr Doświadczenie z architekturą mikroserwisów Praca z systemami rozproszonymi Migracje monolit → mikroserwisy Doświadczenie w metodykach Agile Co oferujemy Pracę nad zaawansowanym produktem o realnym wpływie na bezpieczeństwo lotów Międzynarodowe środowisko i współpracę z ekspertami Dużą autonomię i wpływ na rozwój systemu Hybrydowy model pracy (Kraków) Możliwość rozwoju w kierunku architektury i systemów rozproszonych

🏢 Summary: Senior Java Cloud Engineer role focused on building scalable cloud solutions across AWS, Azure, or Google Cloud using Java and DevOps practices. The position involves end-to-end ownership of cloud services, collaboration with distributed Agile teams, and maintaining CI/CD and automated testing workflows. Hybrid work with 3 days per week in the office is required. 🗂️ Requirements: 3+ years of hands-on Java experience, Experience with AWS, Azure, or Google Cloud, Experience working in distributed environments, Knowledge of Java and .NET frameworks, Understanding of cloud VM, cloud compute, and containerization, Experience with GitLab and GitLab pipelines, Strong SQL skills, Knowledge of Oracle, Knowledge of MS SQL Server, Experience working in Agile teams, Experience with automated testing and continuous integration, English proficiency level B2 or higher, Availability to work from the office 3 days per week 📃 Skills: Java, AWS, Azure, GoogleCloud, GitLab, SQL, Oracle, MSSQL, Docker, .NET, CI/CD, Agile 🏢 Description: We are looking for a Senior Java Cloud Engineer to deliver scalable cloud solutions using Java, cloud platforms, and modern DevOps practices. You will build reusable, efficient services across AWS, Azure, or Google Cloud while collaborating with distributed Agile teams and owning delivery end-to-end—apply now. A presence of 3 days per week in our office is required. Responsibilities Build and ship cloud-based solutions across AWS, Azure, or Google Cloud Operate effectively in distributed environments to enable fast-paced deliveries Collaborate with Agile teams to boost efficiency and adapt to changing requirements Maintain automated testing and continuous integration workflows Leverage new technologies to deliver modern, reusable solutions Support teammates with a focus on improving overall efficiency Own solutions and drive them through completion Communicate clearly and proactively across global teams Requirements Hands-on 3+ years of Java experience with a primary focus on build and delivery rather than pure coding Solid background in cloud-based solutions such as AWS, Azure, or Google Proven experience working effectively in distributed environments Working knowledge of Java and .NET frameworks Good understanding of Cloud based VM, Cloud compute, and Containerization Practical familiarity with GitLab and GitLab pipelines Strong SQL skills including Oracle and MS SQL Server Demonstrated ability to collaborate in Agile teams Proven expertise in automated testing and continuous integration English proficiency at B2 (Upper-Intermediate) level or higher Nice to have Knowledge of Rates and Credit bonds and derivatives Familiarity with Microsoft Azure 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: Senior Java Developer role focused on building, maintaining, and optimizing scalable Java applications for complex financial and enterprise systems in a hybrid Krakow setup. The position involves working with microservices architecture, REST APIs, and databases within an Agile environment. You will contribute to design, development, performance optimization, and technical reviews. 🗂️ Requirements: Minimum 6 years of Java development experience, At least 5 years of experience with Spring and Spring Boot, Strong experience with Microservices architecture, Strong knowledge of REST APIs and integration patterns, Experience with SQL and NoSQL databases, Ability to design application architecture, Experience working in Agile environments 📃 Skills: Java, Spring, SpringBoot, Microservices, REST, SQL, NoSQL, APIs, Architecture, Agile 🏢 Description: 📍 Location: Krakow, hybrid 3 days/week Role: Senior Java Developer Role Description: We are looking for an experienced Java Developer to join technology team. You will be responsible for developing, maintaining, and optimizing Java-based applications that support complex financial systems and enterprise platforms. Key Competencies: Agile way of working and collaboration in cross-functional teams Advanced Java concepts and object-oriented design principles Java API management, RESTful services, and Microservices architecture Database technologies (SQL / NoSQL) and performance optimization Requirements: Minimum 6 years of experience in Java development Strong experience with Spring / Spring Boot and Microservices (5+ years) Good understanding of REST APIs, integration patterns, and application architecture Experience with database technologies and writing efficient queries Ability to work in a team environment and communicate effectively with technical and non-technical stakeholders Experience working in Agile delivery environments Nice-to-Have / Bonus Skills: Experience in production support and troubleshooting Participation in design and architecture reviews Exposure to cloud platforms and modern deployment pipelines Mentoring or leading technical discussions Responsibilities: Design, develop, and maintain scalable Java applications Participate in design and code reviews Troubleshoot issues and optimize system performance Collaborate with business analysts and other teams to deliver solutions Prepare technical documentation and reports as needed

🏢 Summary: Senior Java Engineer role focused on building, modernizing and optimizing enterprise-grade systems with strong emphasis on security, performance and scalability. The position involves backend or fullstack development, resolving security findings, upgrading dependencies, and contributing to architectural decisions in distributed international teams. Projects target critical, high-performance environments with real impact on system reliability and efficiency. 🗂️ Requirements: 5–7+ years of enterprise Java experience, Strong knowledge of Java SE and JEE, Experience with Spring and Spring Boot, Knowledge of JMS and JPA or Hibernate, Experience with TypeScript and Angular (v2+), Understanding of Observables and Redux state management, Experience designing and developing REST APIs, Experience in security analysis and remediation or performance engineering, Knowledge of SQL and relational databases (PostgreSQL, Oracle or SQL Server), Experience with Docker, Knowledge of Kubernetes or OpenShift, Knowledge of OAuth, OIDC and SSO, English level B2+ 📃 Skills: Java, JEE, Spring, SpringBoot, JMS, JPA, Hibernate, TypeScript, Angular, Observables, Redux, REST, SQL, PostgreSQL, Oracle, SQLServer, Docker, Kubernetes, OpenShift, OAuth, OIDC, SSO 🏢 Description: Wobec pojawiających się możliwości szukamy: 🚀 O roli Senior Java Engineera , który dobrze odnajduje się w złożonych systemach enterprise — tam, gdzie naprawdę liczy się bezpieczeństwo, wydajność i skalowalność . W zależności od projektu będziesz: rozwiązywać realne problemy security (findings + remediation) , optymalizować wydajność systemów krytycznych , modernizować i upgrade’ować istniejące rozwiązania, rozwijać backend lub fullstack w środowisku enterprise. Pracujesz blisko architektury i decyzji technicznych, w międzynarodowych, rozproszonych zespołach . 🛠 Twoje zadania rozwój i utrzymanie aplikacji w Java (Spring Boot) projektowanie i rozwój REST API analiza i naprawa problemów bezpieczeństwa upgrade zależności ( Java + TypeScript ) identyfikacja i usuwanie wąskich gardeł wydajnościowych praca z integracjami i wzorcami enterprise współpraca z zespołami globalnymi i interesariuszami udział w decyzjach architektonicznych wsparcie wdrożeń i rozwiązywanie problemów produkcyjnych ✅ Must have 5–7+ lat doświadczenia w Java (enterprise) bardzo dobra znajomość Java SE / JEE doświadczenie z Spring / Spring Boot znajomość JMS, JPA / Hibernate doświadczenie z TypeScript frontend: Angular (v2+) znajomość Observables / Redux (state management) doświadczenie z REST API doświadczenie w jednym z obszarów: security (analiza + remediation) lub performance engineering znajomość SQL (PostgreSQL / Oracle / SQL Server) doświadczenie z Docker znajomość Kubernetes lub OpenShift znajomość OAuth / OIDC / SSO (IAM) doświadczenie w pracy z rozproszonymi zespołami angielski min. B2+ ➕ Mile widziane Apache Camel Kafka Jenkins / Harness CI/CD / DevOps Azure C++ Terraform / IaC doświadczenie w fintech / systemach finansowych doświadczenie z systemami high-performance / data-intensive 💡 Co oferujemy długofalową współpracę realny wpływ na architekturę i decyzje techniczne projekty z naciskiem na security, performance i enterprise elastyczny model pracy (remote-first) międzynarodowe środowisko brak zbędnej korporacyjnej biurokracji 📩 Zainteresowany? Jeśli chcesz rozwiązywać realne problemy inżynieryjne, a nie tylko “zamykać taski” odezwij się.