Java Backend Engineer

🏢 Summary: Java Backend Engineer role focused on building AI-driven digital products for employees and HR stakeholders. The position covers end-to-end microservice development, testing, deployment, observability, production support, and secure, ethical AI delivery in an agile environment. 🗂️ Requirements: Strong Java and Spring Boot experience, Experience building microservices, Spring Batch and Spring Cloud experience, REST API and GraphQL schema design proficiency, NoSQL data modelling experience, Data streaming experience, OAuth 2.0 and Microsoft Entra ID authentication/authorization experience, Azure Cloud Services experience, English communication skills for cross-functional agile collaboration, Commitment to quality, maintainability, documentation, and continuous learning 📃 Skills: Java, SpringBoot, SpringBatch, SpringCloud, Microservices, REST, GraphQL, NoSQL, CosmosDB, Kafka, OAuth2, EntraID, Azure, AppServices, AzureMonitor, APIManagement, Observability 🏢 Description: Role Summary We are looking for a Java Backend Engineer to design, develop, and continuously improve intelligent digital products and services that support employees and HR stakeholders, with AI at the core. Required Skills & Experience Strong experience in Java and Spring Boot, including Spring Batch and Spring Cloud, and building microservices. Proficiency in REST API and GraphQL schema design. Experience with NoSQL data modelling (e.g., Azure Cosmos DB), data streaming (e.g., Confluent Kafka), and authentication/authorization protocols including OAuth 2.0 and Microsoft Entra ID. Familiarity with Azure Cloud Services, including App Services, Azure Monitor, and API-Management. Collaborative communication skills: able to express ideas clearly in English and adapt technical content for diverse audiences while working closely with product managers, designers, and engineers in agile settings. Strong commitment to quality, maintainability, documentation, and continuous learning. Key Responsibilities Design, develop, and continuously improve intelligent digital products and services that support employees and HR stakeholders, with AI at the core. Apply modern engineering practices, from analyzing user needs and developing new features to automated testing, deployment, and observability. Ensure quality, security, reliability, and compliance by applying digital principles and implementing functional and non-functional requirements. Build observability into solutions, monitor production health, help resolve incidents, and remediate root causes of risks and issues. Advocate for user and stakeholder needs, ensuring AI solutions are explainable, ethical, and human-centric. Share knowledge openly, contribute to hiring and onboarding, and help shape a collaborative, forward-thinking engineering culture.

🏢 Summary: Backend Engineer role focused on building AI-centric digital products for employees and HR stakeholders. The position involves Java/Spring Boot microservices development, API and cloud integration, production observability, and maintaining secure, reliable solutions in a hybrid Kraków or Wrocław work model. 🗂️ Requirements: Strong Java and Spring Boot experience, Spring Batch and Spring Cloud experience, Microservices development experience, REST API and GraphQL schema design proficiency, NoSQL data modelling experience, Data streaming experience, OAuth 2.0 and Microsoft Entra ID knowledge, Azure Cloud Services familiarity, English communication skills, Agile collaboration experience, Commitment to quality, maintainability and documentation 📃 Skills: Java, SpringBoot, SpringBatch, SpringCloud, Microservices, REST, GraphQL, NoSQL, CosmosDB, Kafka, OAuth2, EntraID, Azure, AppServices, AzureMonitor, APIManagement, Observability, Testing 🏢 Description: Role summary We are looking for a Backend Engineer to design, develop, and continuously improve intelligent digital products and services that support employees and HR stakeholders, with AI at the core. 📍 Work mode: Hybrid (2–3 days/week) — Kraków or Wrocław office Primary skills Java, Spring Boot, microservices, REST APIs Key responsibilities: Design, develop, and continuously improve intelligent digital products and services that support employees and HR stakeholders, with AI at the core. Apply modern engineering practices, from analyzing user needs and developing new features to automated testing, deployment, and observability. Ensure quality, security, reliability, and compliance by applying digital principles and implementing functional and non-functional requirements. Build observability into solutions, monitor production health, help resolve incidents, and remediate root causes of risks and issues. Advocate for user and stakeholder needs, ensuring AI solutions are explainable, ethical, and human-centric. Share knowledge openly, contribute to hiring and onboarding, and help shape a collaborative, forward-thinking engineering culture. Required skills and experience: Strong experience in Java and Spring Boot, including Spring Batch and Spring Cloud, and building microservices. Proficiency in REST API and GraphQL schema design. Experience with NoSQL data modelling, such as Azure Cosmos DB ; data streaming, such as Confluent Kafka; and authentication/authorization protocols, including OAuth 2.0 and Microsoft Entra ID. Familiarity with Azure Cloud Services , including App Services, Azure Monitor, and API Management. Collaborative communication skills: able to express ideas clearly in English and adapt technical content for diverse audiences while working closely with product managers, designers, and engineers in agile settings. Strong commitment to quality, maintainability, documentation, and continuous learning. AI-related skills, such as Spring AI or LangChain, are a strong plus. 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 at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Long-term remote B2B contract for an experienced Backend Developer to build and support cloud-based solutions using .NET and AWS. The role requires end-to-end ownership, from requirements and implementation through deployment and support, in an Agile international environment. 🗂️ Requirements: Strong C# and .NET Core experience, Entity Framework experience, AWS and cloud architecture experience, GitLab and CI/CD experience, SOLID and clean code knowledge, Agile or Kanban experience, End-to-end delivery ownership, Effective technical and non-technical communication 📃 Skills: C#, .NET, AWS, EntityFramework, GitLab, CI/CD, SOLID, Agile, Kanban 🏢 Description: Experienced Backend Developer (.NET / AWS) What we are looking for We are looking for an experienced Backend Developer with AWS experience who enjoys taking ownership and driving work from idea to production. You are comfortable working in a complex environment, eager to understand the business and domain, and motivated by improving both the product and the way we work. You enjoy collaborating with business stakeholders, fellow developers and architects, communicate effectively with both technical and non-technical audiences, and thrive in an international environment. What we offer: Long Term B2B Contract Rate: 40-45 euro/h + VAT Remote role Core Technical Requirements • Strong experience with C# and .NET core (we use .NET 10) • Entity Framework • Solid AWS knowledge and experience with cloud-based architectures • Experience with GitLab and CI/CD practices • Understanding of SOLID principles and clean code practices • Experience working in Agile/Kanban environments • Ability to independently drive work from requirements through implementation, deployment and support

🏢 Summary: Long-term remote B2B contract for an experienced Backend Developer to own the delivery of cloud-based .NET solutions from requirements through production support. The role offers €40–45/hour plus VAT and requires collaboration with business stakeholders, developers, and architects in an international environment. 🗂️ Requirements: Strong C# and .NET Core experience, Entity Framework experience, AWS and cloud-architecture experience, GitLab and CI/CD experience, SOLID principles and clean-code practices, Agile or Kanban experience, Independent delivery from requirements through deployment and support, Effective communication with technical and non-technical stakeholders 📃 Skills: C#, .NET, AWS, EntityFramework, GitLab, CI/CD, SOLID, Agile, Kanban 🏢 Description: Experienced Backend Developer (.NET / AWS) What we are looking for We are looking for an experienced Backend Developer with AWS experience who enjoys taking ownership and driving work from idea to production. You are comfortable working in a complex environment, eager to understand the business and domain, and motivated by improving both the product and the way we work. You enjoy collaborating with business stakeholders, fellow developers and architects, communicate effectively with both technical and non-technical audiences, and thrive in an international environment. What we offer: Long Term B2B Contract Rate: 40-45 euro/h + VAT Remote role Core Technical Requirements • Strong experience with C# and .NET core (we use .NET 10) • Entity Framework • Solid AWS knowledge and experience with cloud-based architectures • Experience with GitLab and CI/CD practices • Understanding of SOLID principles and clean code practices • Experience working in Agile/Kanban environments • Ability to independently drive work from requirements through implementation, deployment and support

🏢 Summary: Senior Java Engineer role building cloud-native backend services for life sciences organizations analysing potential adverse drug effects. The position combines hands-on Java development, technical ownership, distributed-system design, AWS operations, and collaboration with international cross-functional teams. 🗂️ Requirements: 4–7 years of Java backend development experience, Strong Spring and Spring Boot knowledge, Production AWS experience, Microservices architecture knowledge, SQL and relational database experience, Tomcat or similar application server familiarity, Independent technical decision-making and system design contribution, Good communication skills 📃 Skills: Java, Spring, SpringBoot, AWS, Microservices, SQL, Tomcat, Databases 🏢 Description: We are looking for a Senior Java Engineer to join our team building a cloud-native platform used by global Life Sciences organisations. You will work on backend services supporting pharmaceutical companies in analysing potential adverse drug effects. This role offers a mix of technical ownership, system design, and hands-on development in a highly collaborative, international environment.🙋‍♀️ ✅ Your responsibilities: Design, develop, and maintain backend services built with Java, Spring, Spring Boot, and AWS. Contribute to architectural decisions and system-level discussions. Ensure stability, scalability, and performance of distributed services. Write clean, maintainable code and participate in code reviews. Collaborate with cross-functional teams to translate requirements into technical solutions. Support deployment automation and production operations. Troubleshoot complex technical issues and propose improvements. 🧠 Our requirements: Minimum 4–7 years of experience in backend development with Java. Strong knowledge of Spring and Spring Boot. Experience with AWS in production environments. Solid understanding of microservices architecture. Hands-on experience with SQL and relational databases. Familiarity with Tomcat or similar application servers. Ability to work independently, make informed technical decisions, and contribute to system design. Good communication skills. Nice to Have: Familiarity with Kafka or other event-driven systems. Ability to assist occasionally with small tasks in React. Experience working on projects in healthcare or Life Sciences. 🌟 What we offer: Fully remote work with flexible arrangements tailored to your needs. Benefits like a multisport pass and private healthcare to support your well-being. Training budget and support for certifications Opportunities to work on international projects that expand your expertise. Clear career growth paths with fast-track promotion opportunities.

🏢 Summary: Long-term B2B opportunity for an experienced Java Backend Engineer to build scalable, intelligent enterprise digital products and services. The role focuses on modern backend architecture and AI-enabled application development in a hybrid setup. 🗂️ Requirements: Experience in Java backend engineering, Java, Spring Boot, Spring Cloud, Spring Batch, Microservices, REST APIs, GraphQL, Azure Cloud, Azure Cosmos DB, Kafka, OAuth 2.0, Microsoft Entra ID 📃 Skills: Java, Spring, Microservices, REST, GraphQL, Azure, Cosmos, Kafka, OAuth, Entra 🏢 Description: -Senior Java Backend Engineer | Poland | Hybrid | B2B We're looking for an experienced Java Backend Engineer to join a long-term enterprise project focused on building intelligent digital products and services. DCV-Senior Java Backend Engineer-WP/US/Jo/03-08-26 send CV to (marcillina.tietjen@dcvtechnologies.co.uk) Tech Stack Java Spring Boot Spring Cloud Spring Batch Microservices REST APIs GraphQL Azure Cloud Azure Cosmos DB Kafka OAuth 2.0 Microsoft Entra ID Nice to Have Spring AI LangChain AI-powered application development 📍 Poland (Hybrid) 💼 B2B Contract If you enjoy building scalable backend systems and are interested in modern AI-enabled enterprise applications, we'd love to hear from you.