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Senior Java backend developer (6+ years) building and maintaining critical microservices-based applications remotely from Spain, using Java 21, Spring Boot, AWS, and PostgreSQL, with CI/CD tooling like Docker and Jenkins in Agile/Scrum teams.
Senior backend Java developer at UST in Madrid, designing and evolving scalable, event-driven microservices and mission-critical distributed systems. Core stack: Java 17/21, Spring Boot, RxJava/Project Reactor, gRPC/Protobuf, Kafka, and AWS.
100% remote Java developer role at SlashMobility, a boutique Barcelona-based digital transformation consultancy. Day to day you build and integrate REST API services using Spring Boot and Spring Batch for large corporate clients on digital modernization projects.
Backend Developer building and evolving scalable Node.js services and REST APIs for the R&D product team of a tech company with its own product, based 100% onsite at the PTA in Málaga. Day to day involves SQL/NoSQL databases, testing with Jest/Vitest, Docker, and technical documentation in agile teams.
Designs, develops and maintains Java Spring Boot microservices with REST APIs, deployed on OpenShift with Cassandra, at a multinational banking consulting firm. Collaborates with React frontend teams, takes part in code reviews and CI/CD, and drives performance, scalability and security improvements.
Java Backend Developer at Deutsche Telekom in Granada, Spain, building and maintaining backend applications that support public administration systems. Day-to-day work involves feature design, bug fixes, Git/GitFlow, agile ceremonies, and collaboration with frontend, architecture, QA, and DevOps teams.
Java backend developer at T-Systems Iberia (Deutsche Telekom group) building and maintaining critical public-administration applications in the TAO department. Day to day: Java feature development, Git/GitFlow, agile ceremonies, incident resolution, and collaboration with frontend, QA and DevOps, with AI-assisted development tools. Hybrid work from several Spanish offices.
Design and operate Java backend services as microservices using Spring Boot, implementing REST APIs and running workloads on OpenShift while collaborating with React frontend teams. Requires experience with Cassandra, Docker, Git and agile practices (Scrum/Kanban).
Mid/senior backend developer building and maintaining Java Spring Boot microservices and RESTful APIs, with additional Python work, for an energy-sector client. Day to day involves integrating relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases, writing tests, and collaborating with frontend, DevOps, and product teams. Position is 100% remote, based in Barcelona.
Fully remote Java developer (min. 3 years' experience) building microservices with Spring Boot at Slashmobility, a Barcelona-based boutique tech consultancy that designs and builds digital products and platforms for large corporations.
Designs and maintains Java backend services as Spring Boot microservices backed by Cassandra, exposing REST APIs and deploying on OpenShift. Day to day includes CI/CD participation, performance improvements, and integration with frontend teams; permanent contract in Spain with telework options.
UST España & Latam is hiring a Java developer to evolve its IT Services Marketplace and Microsoft 365 platforms, building backend services and REST APIs and integrating with Microsoft and internal systems in an agile team. The role is 100% remote from Spain.
Senior backend Java developer at EY GDS in Málaga, designing and building enterprise-grade banking applications (payments, lending, core banking, risk, regulatory reporting) using Java 11/17+, Spring Boot, Oracle DB and microservices in an agile, hybrid team serving financial institution clients.
Arktic es una expedición. Una aventura construida por un grupo de profesionales que cree en el oficio de consultor, una exploración constante del negocio, la tecnología y la transformación de organizaciones. Nuestro…
100% remote Java Full Stack developer role (Spain) working on a financial-sector trading controls project: designing, developing and optimizing Java/Spring Boot applications, reducing technical debt, and using AI tools like GitHub Copilot and Devin, plus CI/CD, DevOps and security/quality tooling such as SonarQube and Fortify.
Java Backend Developer at international consulting firm Qaracter, building and maintaining backend applications and microservices for banking and financial projects. Day-to-day work centers on Java 8/11, Spring Boot/Batch/Cloud Stream, Kafka event-driven architecture, Oracle/PostgreSQL/Redis, and CI/CD with Jenkins and OpenShift.
Act Digital is hiring a Senior Fullstack Java Developer for a 100% remote position, working on both frontend and backend of high-impact enterprise applications. Core technologies include Java, Spring Boot microservices, JSF, Jakarta EE, and REST API design.
Mid-senior/senior backend Java developer joining a project for a major Spanish airline, hybrid from Madrid with just one office day per week. Day-to-day work centers on Java/Spring Boot backend development with real testing practices (JUnit/Mockito), CI/CD pipelines, and hands-on cloud experience (AWS, Azure, or GCP).
Senior backend engineer at NTT DATA working on large tech-modernization programs that integrate generative-AI and agentic capabilities into complex client environments. Day to day you build Java/Spring Boot (or Node.js) microservices with strong testing practices, deploy on Docker/Kubernetes/OpenShift, and use DevOps tooling like Ansible and Terraform; telework options are available.
Senior Java Developer building and optimizing high-performance backend services for a sports betting and gaming platform: integrating a new feed supplier and developing a cashier module for cash-flow management. Core stack is Java, Spring, and REST APIs, with Docker, Maven/Gradle, and Git in an Agile SAFe environment, remote from Spain.
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