senior java backend engineer java 21 spring boot

About Us Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs. Role Overview Our client is supporting the development...

ResponsibilitiesDesign, develop, and maintain Java-based applications supporting taxation, account management, and investment processingLead and execute application upgrades to Java 17+ and Spring Boot 3.x baselineBuild and maintain calculation engines aligned with tax regulations across multiple countriesDevelop solutions supporting complex business...

ResponsibilitiesDesign, develop, and maintain Java-based applications supporting taxation, account management, and investment processingLead and execute application upgrades to Java 17+ and Spring Boot 3.x baselineBuild and maintain calculation engines aligned with tax regulations across multiple countriesDevelop solutions supporting complex business...

Luxoft Poland in Kraków is seeking an experienced Backend Engineer to help migrate and modernize securitization platforms on Microsoft Azure. You will build microservices, design REST APIs, and implement cloud-native solutions with AKS orchestration.You will work with Terraform IaC, Docker containers, and CI/CD pipelines, collaborating across trading, risk,...

Auctane is hiring an Associate Software Engineer in Poland to contribute to backend development using Java and Spring Boot, and to design and consume RESTful APIs. You will gain hands-on experience with BPM workflows, AWS services, and test automation in a hybrid working model.Join a global engineering team and grow technical skills while collaborating...

ARQ, a fast-growing fintech in Kraków, seeks a Backend Engineer to design, develop and maintain scalable backend systems powering our products. You will build REST APIs and microservices, focusing on security, performance and reliability in a dynamic startup environment.Required skills include Java, Spring Boot, and fluent English communication. A...

Responsibilities We are looking for a strong backend engineer who wants to design and scale core systems powering product and assortment management across a large retail ecosystem. You will take ownership of backend architecture and system evolution within the assortment management domain, building scalable services and integrations across a complex,...

Sii Poland is looking for an experienced Senior Java Developer to join the backend team in Poland. You will design and implement backend services using Java, Spring Boot, and Spring Framework, build RESTful APIs, and optimize SQL queries.You will collaborate on architecture, write unit tests, and participate in CI/CD and deployment support. The role requires...

Etteplan w Polsce poszukuje doświadczonego Senior Java Developera, który dołączy do zespołu pracującego nad systemami analitycznymi i integracjami. Praca obejmuje rozwój backendu w Javie, projektowanie usług i REST API oraz współpracę z klientem przy rozwiązywaniu złożonych problemów.Wymagane jest solidne doświadczenie w Javie i Spring/Spring...

ALTEN Polska is seeking a mid-level Backend Developer specializing in Java 21+ and Spring Boot 3+ to contribute to backend applications, system integrations, and performance optimization in a hybrid Warsaw setting.The candidate should have 3-5 years of backend experience, strong knowledge of microservices, and hands-on experience with Kafka, Docker,...

ComeOn Group in Katowice, Poland is seeking an experienced backend Java developer to design, build, and maintain services within a cross-functional team. You will work with Java, Spring Boot, Kafka, Docker, MongoDB, and MySQL across the full development lifecycle.The role is in an Agile environment with daily collaboration across functions and a focus on...

Diverse CG Sp. z o.o. Sp.k. is seeking a skilled Java Developer in Warsaw, Poland. The role involves designing, developing, and maintaining Java-based applications focused on taxation and complex business processes.Candidates should have strong knowledge of Java and Spring Boot, experience in upgrades and migrations, and proficiency with relational databases...

Do you want to work for one of the world’s largest global banks? Want to be part its exciting digital transformation? Do you want to engineer incredible products for millions of customers? Well, our Client offers just that We are looking for candidates to help develop our internal IT Automation Portal. The portal connects business teams across all...

Reply Group is looking for a strong backend engineer in Katowice to design and scale core systems for product management. You will own backend architecture and build scalable services and integrations within a complex enterprise landscape.The ideal candidate has 6+ years of experience with Kotlin, Spring Boot, and expertise in REST APIs, microservices, and...

Ubique Systems in Kraków seeks an experienced Java backend engineer to design and build intelligent digital products and services with AI at the core. You will apply modern engineering practices, from analyzing user needs and developing features to automated testing, deployment, and observability, while ensuring quality, security, and...

EVOlVE.inc is seeking a backend software engineer to design, develop, and test server-side logic using Java Spring Boot and related technologies. You will study information needs, analyze data flows, and translate business requirements into technical specifications.You will collaborate with product management, UX designers, and frontend developers in an...

Wiodąca firma z branży IT w Rzeszowie poszukuje programisty/programistki z doświadczeniem. Obowiązki obejmują projektowanie i rozwój aplikacji w Javie oraz Spring Boot. Wymagane jest minimum 5-letnie doświadczenie w programowaniu w Javie oraz dobra znajomość relacyjnych baz danych PostgreSQL. Oferowane wynagrodzenie wynosi od 6 000 do 9 000 PLN....

Inetum in Warsaw, Poland is seeking a Software Developer with at least 3 years of experience in enterprise-grade software development. The role involves developing solutions that support network planning and maintenance while collaborating within an Agile/Scrum team. Key skills include Java, Spring Boot, Angular, and familiarity with CI/CD tools. A hybrid...

Who we are Moniepoint Inc. is Africa’s all-in-one financial platform, helping 20 million businesses and individuals access seamless payments, banking, credit, cross-border, and business management tools each month.  As Nigeria’s largest merchant acquirer, we power most of the country’s point-of-sale (POS) transactions. Through our subsidiaries,...

Exciting Opportunity for Senior Software Engineers: Bring Your Expertise to Webfleet!Join our innovative team at Webfleet Solutions as a Senior Software Engineer, specializing in Java backend/Spring Framework, Cloud DevOps to develop and maintain high-performance, scalable software solutions.Here's a little taste of your challenge:Design, develop, test,...