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Build and maintain Java-based backend services using Spring Boot and microservices, designing REST APIs, and integrating async messaging with RabbitMQ and Kafka.
Build and maintain Java/Spring-based banking automation platforms, integrating AI tools and cloud-native tech to streamline processes and improve customer experience.
Builds and maintains Java-based microservices and ETL pipelines for a bank, using Spring Boot, Hibernate, and Docker.
Build and maintain Java-based microservices and APIs for international clients using Spring Boot, PostgreSQL, Docker, and Kubernetes, while collaborating directly with clients in an Agile environment.
Builds backend Java microservices from scratch for enterprise clients, using Spring Boot, cloud platforms, and AI-assisted development tools while collaborating with cross-functional teams.
Mid/Senior Backend Java Developer building scalable BFF services for checkout, customer management, and commerce using Java 21, Spring Boot, and event-driven architecture.
Builds and maintains high-traffic BFF services for checkout, customer management, and commerce using Java 21+, Spring Boot 3.x, REST/OpenAPI, and MongoDB.
Build and maintain a global bank’s internal IT Automation Portal using Java/Spring Boot, Kubernetes, and microservices while ensuring security and scalable architecture.
Designs and builds a cloud-native, multi-tenant Java backend using Spring Boot and Flowable BPMN for EU-compliant case management and document handling.
Builds and maintains backend APIs and distributed systems using Java, Spring Boot, Kubernetes, and AWS for a fintech product team in Kraków.
Build a secure, multi-tenant SaaS platform for EU telecom compliance using Java 21, Spring Boot, Flowable BPMN, and PostgreSQL, handling sensitive legal orders with strict deadlines.
Build and maintain Java/Spring Boot backend services and APIs for a top Polish bank, integrating databases, Kafka/RabbitMQ, and writing automated tests.
Build and lead backend systems that aggregate telecom APIs, ensuring high throughput, security, and resilience for Aduna’s API economy backbone.
Build and maintain the Python/C# backend powering Expereo’s global internet connectivity platform, focusing on a constraint optimization engine for quote generation, API design, and scalable integrations with partners.
Builds and maintains Python/C# backend services for a logistics platform, focusing on a constraint optimization engine for quote generation, API design, and scalable code quality.
Build and maintain modern web apps in React/TypeScript, integrate REST APIs, and mentor junior devs while shaping architecture and code quality in a cross-functional team.
Builds scalable, secure backend services and APIs using Java, Go, Python, or Node.js, deploying to AWS/Azure/GCP with CI/CD and cloud-native tools.
Build and maintain Java-based microservices using Spring Boot and Kafka, design MongoDB schemas, and ensure scalable, high-performance systems.
Build and maintain Java-based backend services and RESTful APIs using Spring, Spring Boot, and Java/Jakarta EE for a large Canadian bank.
Senior backend engineer owning architecture and implementation of a Python-based platform, mentoring engineers, and guiding full-stack development from cloud infrastructure to APIs.
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