Location: Remote (Madrid-based)Language: English (Professional Working Proficiency)Project: TradeNxtAt Hays, we are partnering with a leading international company seeking a highly skilled Senior Backend Consultant to join a strategic TradeNxt project. This role is ideal for professionals with strong expertise in backend development, event-driven architectures, cloud technologies, and data integration.Key ResponsibilitiesDesign, develop, and maintain scalable backend applications and services.Build and optimize real-time data processing solutions using Kafka Streams and DMS Streaming.Develop high-quality microservices using Java Spring Boot.Integrate applications and third-party systems through APIs.Collaborate with cross-functional teams in an agile environment.Contribute to cloud-native solutions hosted on AWS.Support data analytics and reporting initiatives involving Databricks and Power BI.Ensure best practices in version control, containerization, and deployment processes.Mandatory RequirementsCandidates must meet all the following requirements and have proven hands-on experience:Strong experience with DMS Streaming and Kafka Streams.Solid development experience with Java Spring Boot.Experience integrating and consuming APIs.Experience working with AWS cloud environments.Knowledge of Databricks and Power BI.Experience with GitHub and Docker.Kafka Certification (mandatory).Professional level of English.Nice to HaveExperience with scheduling and workload automation tools, particularly Control-M.What We Offer100% remote working model.Opportunity to work on a high-impact international project.Collaborative and innovative environment.Exposure to cutting-edge technologies and modern cloud architectures.Long-term professional growth opportunities.If you have a strong background in backend development, event streaming technologies, and cloud environments, and you hold a Kafka certification, we would love to hear from you.Apply now and become part of a dynamic team delivering innovative solutions within the TradeNxt ecosystem.

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Senior Backend Consultant (TradeNxt) | Remote (Madrid)