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UST España & Latam is hiring a Senior Java Developer to design, build, and maintain high-performance backend microservices in Java 17/21 with Spring Boot. Day to day involves reactive programming, gRPC/Protobuf APIs, Kafka event-driven architecture, testing, CI/CD pipelines, and AWS cloud deployments.
Mid-level Java developer at UST España Latam (hybrid, Alcobendas/Madrid) who designs, develops, and maintains enterprise applications, integrating RESTful services and distributed components with multidisciplinary teams. Core stack: Java, Eclipse IDE, Git, and Oracle Database/SQL; Kafka and messaging platforms are a plus.
Fullstack Java developer building fraud detection and prevention solutions for a large financial-sector project. Works 100% remotely from Spain on a 09:00–19:00 schedule with rotating on-call shifts, designing, developing, and maintaining end-to-end applications.
Grupo TECDATA Engineering is hiring a backend developer in Spain with 3+ years' experience to work on system integration and modernization projects that bring generative AI into the development cycle. Core stack: Java/Spring or Node.js, REST/SOAP APIs, microservices, and integration tools like Kafka, JMS, and RabbitMQ.
Backend developer in Madrid building and maintaining Lynx, a machine-learning and high-performance product for real-time banking fraud detection. Work centers on C programming in Linux (performance and real-time focus), database access code for Oracle, DB2 and SQLite, plus scripting in Bash/Awk, testing, deployment, and incident diagnosis.
Backend Developer at TECDATA ENGINEERING in Madrid (hybrid, 3 days/week in the Alcobendas office) working on application integration and modernization projects, using generative AI for code generation, refactoring, testing and documentation. Core stack: Java/Spring, REST/SOAP APIs, microservices, messaging and CI/CD.
Senior Backend Engineer joining a newly founded Global Technology Hub in Madrid, building scalable, secure B2B enterprise software for a major commercial real estate company. Day to day: hands-on .NET development (C#, ASP.NET Core), microservices and API design, code reviews, mentoring juniors, and CI/CD with cloud (GCP) and SQL/NoSQL data stores in a hybrid, agile setup.
Backend Java developer building and maintaining Spring Boot applications, REST APIs, and microservices, while collaborating in international Agile teams and participating in CI/CD and cloud deployments. Core stack: Java 11+, Spring Boot, SQL databases, Git, with cloud and Kafka as nice-to-haves.
UST España & Latam is hiring a 100% remote AI-assisted Java Code Analyst based in Spain. Day to day: improving code quality, reducing technical debt, writing documentation, and optimizing performance in Java/Spring Boot microservices, leveraging AI tools like GitHub Copilot or Devin while following security and CI/CD practices.
W Hunt España is hiring a Senior Java Developer to build internal backend solutions focused on Spring Boot, microservices, and streaming platforms, working with Apache Kafka, Oracle, and MongoDB. The role is 100% remote from Spain.
Alten Delivery Centre Spain seeks a Senior Java Developer with 5+ years of experience to build scalable, secure backend solutions for a cloud-native project in a complex enterprise environment. Day-to-day work centers on Java, Spring Boot, microservices, Cloud Foundry, Kubernetes, AWS, and Azure, with remote work and flexible hours possible.
Senior Java Developer at ALTEN Delivery Centre Spain working on a cloud-native enterprise project: building microservices with Java 21 and Spring Boot in an international team. Requires 5+ years of experience, B2 German, plus PostgreSQL, OpenAPI/Swagger and CI/CD skills; partial remote work is offered.
Backend developer joining an architecture and technology modernization team, integrating and modernizing applications using Generative AI. Day-to-day work spans Java/Spring or Node.js, REST/SOAP APIs, microservices, and integration tools like Kafka, RabbitMQ, and Apache Camel. Hybrid role in Alcobendas, Madrid (2 days/week on-site) requiring 3+ years of experience.
Backend Developer at Tecdata Engineering joining an architecture and tech-modernization team, building application integrations and evolving legacy systems using generative AI. Hybrid role (3 days/week in Alcobendas, Madrid) centered on Java/Spring, REST/SOAP microservices, messaging (Kafka, RabbitMQ, JMS) and Git.
Senior Java backend developer at Plexus Tech for a banking-sector project: design, build, and maintain Java/Spring Boot microservices, deploy on OpenShift, integrate REST APIs, and work with PostgreSQL plus some React frontend, including code reviews and testing. Offered fully remote (100% telework) with flexible hours.
Senior Java developer at consultancy MGT Consulting, working remotely for one of its clients: building microservices with Java 8+, Spring Boot, and advanced Kafka (4+ years), plus JPA, TDD/BDD testing, functional programming and Scrum. Includes mandatory 24/7 on-call rotations every 3-4 months.
hiberus is hiring a mid-level Java Backend Developer in Galicia, Spain, to build and maintain backend solutions, design REST APIs, and migrate systems toward microservices with Kafka and CI/CD pipelines. Core stack is Java with Spring Boot/Cloud; valued extras include cloud platforms, Kubernetes/OpenShift, ELK/Grafana/Prometheus, and Linux.
Backend developer at Grupo Tecdata Engineering in Burgos, Spain building system-integration and tech-modernization projects — REST/SOAP APIs, microservices and system migrations using Kafka, ESB/iPaaS and Git — while applying generative AI to development workflows.
Senior Backend Developer in Barcelona (hybrid, 4 days on-site) who evolves a growing social-impact platform, migrating its AWS setup toward serverless. Day to day: designing and shipping scalable Node.js/NestJS APIs and event-driven AWS services, modeling data in MySQL and DynamoDB, mentoring teammates in an Agile team of 6 reporting to the CTO.
HCLTech is hiring a Senior Backend Developer in Asturias, Spain, to build Java 8/11 and Spring Boot microservices with an API-first approach using OpenAPI/Swagger. Day to day is backend development on complex projects, with Azure DevOps and integration/testing tooling valued, and telework offered.
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