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The Senior Java Developer will design and implement software using hexagonal architecture, focusing on code quality, performance, and system security. The role requires expertise in Java 17+, Spring, Kafka, and cloud technologies like Azure.
Senior Java Developer designing and maintaining microservice-based applications with Spring Boot, JPA, Hibernate, and REST APIs, while applying DevSecOps practices and containerization technologies on a B2B contract.
Full Stack Java Developer working on a Java and Angular platform, combining engineering expertise with AI-assisted development to design, build, and validate production-ready software.
Senior Full Stack Developer (70% Java, 30% Angular) building backend microservices and frontends for XTB's Customer Care ecosystem — including AI-based tools, AML/anti-fraud systems, and client data platforms — using Java 21+, Micronaut, Angular, Kafka, PostgreSQL, and Kubernetes.
Designs and builds custom Java-based applications and microservices for clients across industries like finance and telecom, using Spring Boot, cloud platforms, and agile methodologies.
Java Developer designing and implementing software in hexagonal architecture at an IT services firm, using Java 17+, Spring (MVC, Data), relational and NoSQL databases, and Apache Kafka.
Java Developer designing and developing scalable microservices-based applications using Core Java, Spring, Kafka, Kubernetes, AWS, and gRPC in a hybrid role in Warsaw for an investment banking context.
Senior Java Developer building a global enterprise data integration and processing platform, focusing on scalable microservices, event-driven Kafka integrations, and legacy modernization using Spring Boot and domain-driven design.
Builds scalable Java microservices and secure APIs for HR-focused AI products in an agile team using Spring, REST/GraphQL, and Azure.
Design and develop enterprise-grade Java backend applications using Spring Boot, microservices, and cloud-native practices, building scalable RESTful APIs and distributed systems with CI/CD pipelines.
Design and maintain Java backend services for real-time fraud and financial crime detection systems serving banks and financial institutions, working in a small agile team in a hybrid setup.
Senior Java Platform Engineer designing and owning backend components of a large distributed enterprise platform, with a focus on reliability, security, observability, and Kafka-based event-driven architecture.
Senior Java backend engineer building high-performance data processing systems and scalable APIs for a global Risk Technology team.
Designs and optimizes scalable backend services for a global transportation tech project using Java, PHP, and JVM frameworks like Micronaut/Spring Boot.
Builds and optimizes Scala/Java-based data pipelines for an investment bank using Spark, focusing on scalable ETL/ELT processes in a hybrid work setup.
Backend development using Java and Spring Boot, designing and consuming RESTful APIs with hands-on work on BPM workflows, AWS services, and test automation in a hybrid agile team.
Senior Java Microservices Engineer designing and developing scalable microservices-based enterprise applications using Core Java, Kafka, Kubernetes, AWS, and gRPC in a hybrid role in Warsaw.
Focuses on PostgreSQL database development, SQL query performance tuning, and server configuration, with ~30% backend component development in Java, in a production environment emphasizing stability and monitoring.
Senior Java backend developer building aviation safety systems, focusing on modern backend applications with REST/SOAP integration and containerization using Docker.
Senior Backend Developer working with PHP 7.x/8.x across Laravel, Symfony, and Slim frameworks, building REST APIs and event-driven integrations for a Polish travel industry leader.
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