> Markdown version of [/jobs/ext/1939452-java-backend-software-engineer-lead-b2b-contract-eu-remote-role](https://www.wearedevelopers.com/jobs/ext/1939452-java-backend-software-engineer-lead-b2b-contract-eu-remote-role). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Backend Software Engineer Lead - B2B - Contract - Eu - Remote - Role - **Company:** Nityo Infotech - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Flutter, Java (Programming Language), Amazon Web Services, Databases, Health Information Systems (HIS), Medical Software, Interoperability, Mobile Application Software, Machine Learning, Message Broker, Node.Js, NoSQL, RabbitMQ, Software Engineering, SQL Databases, Systems Integration, Fast Healthcare Interoperability Resources, Spring-boot, Backend, Event Driven Architecture, Containerization, Information Technology, Data Analytics, Health Level Seven International, Apache Kafka, React Native, Restful APIs, Microservices - **Published:** August 5, 2026 - **Apply:** https://www.buscojobs.com.es/java-backend-software-engineer-lead-b-2-b-contract-eu-remote-role-en-madrid-ID-365508158 ## About the Role Bachelor's degree in computer science, Software Engineering, or related field. (Master's degree preferred.) 8+ years of experience in backend development with demonstrated healthcare domain knowledge. 5+ years of experience with modular development on AWS. Proficiency in Java (Spring Boot or similar frameworks), Node.JS/Express.JS Experience in integrating backend services with mobile app backends (Flutter, React Native). Experience with database technologies (SQL and NoSQL). Strong understanding of RESTful API design and implementation. Familiarity with healthcare data standards (HL7, FHIR) and interoperability frameworks. Knowledge of security best practices for handling protected health information (PHI) and other sensitive data. Experience with containerization technologies and microservices architecture. Preferred: Experience working with event-driven architectures and message brokers (Kafka, RabbitMQ). Experience with healthcare software development or health information systems. Understanding of medical terminology and healthcare workflows. Knowledge of machine learning and data analytics in healthcare contexts. Work effectively in a matrixed organization, influencing stakeholders. Strong negotiation, collaboration, and influence management skills. Excellent communication and collaboration skills to articulate clinical concepts and rationale to stakeholders. Ability to work in a fast-paced and dynamic environment Comfortable with ambiguity and adaptable to complex and dynamic situations. Multicultural awareness to enable collaboration with diverse, global teams. A strong passion for improving healthcare through technology, including access to care and healthcare experiences. #J-*****-Ljbffr ## Description OverviewWe are #Hiring for a Java Backend Software Engineer Lead - B2B - Contract - EU - Remote role.Location: EU - Remote2+ Months - B2B - ContractQualificationsBachelor's degree in computer science, Software Engineering, or related field.(Master's degree preferred.)8+ years of experience in backend development with demonstrated healthcare domain knowledge.5+ years of experience with modular development on AWS.Proficiency in Java (Spring Boot or similar frameworks), Node.JS/Express.JSExperience in integrating backend services with mobile app backends (Flutter, React Native).Experience with database technologies (SQL and NoSQL).Strong understanding of RESTful API design and implementation.Familiarity with healthcare data standards (HL7, FHIR) and interoperability frameworks.Knowledge of security best practices for handling protected health information (PHI) and other sensitive data.Experience with containerization technologies and microservices architecture.Preferred:Experience working with event-driven architectures and message brokers (Kafka, RabbitMQ).Experience with healthcare software development or health information systems.Understanding of medical terminology and healthcare workflows.Knowledge of machine learning and data analytics in healthcare contexts.Work effectively in a matrixed organization, influencing stakeholders.Strong negotiation, collaboration, and influence management skills.Excellent communication and collaboration skills to articulate clinical concepts and rationale to stakeholders.Ability to work in a fast-paced and dynamic environmentComfortable with ambiguity and adaptable to complex and dynamic situations.Multicultural awareness to enable collaboration with diverse, global teams.A strong passion for improving healthcare through technology, including access to care and healthcare experiences.#J-*****-Ljbffr ## Related Videos - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [Flutter Packages and Plugins - A Look Under the Hood](https://www.wearedevelopers.com/videos/555-flutter-packages-and-plugins-a-look-under-the-hood) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [How Much Does a Software Engineer Make? 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