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Remote Full-Stack Java + Angular Developer

ALTEN Spain is hiring a Full-Stack Java + Angular Developer to work on strategic digital transformation projects in hybrid environments, collaborating with development, architecture and operations teams. Core stack: Java 17+, Angular 18+, Kubernetes, Docker, REST APIs, microservices and CI/CD, applying Clean Code practices; telework options are available.

Angular API CI/CD Docker Java +1 skills

NN Digital Hub Iberia S.L.

Azure Cloud Solutions Developer – API & Backend

Cloud Solution Developer (API Developer) at NN's insurance digital hub in Madrid: designs and builds backend API components on Azure PaaS, integrates APIs with legacy systems, and automates delivery pipelines within a 25+ person API Platform and Governance team working in Agile with English as the working language.

Agile API Azure Cloud

Ust España & Latam

Senior Java Developer: Cloud + Reactive (AWS)

New EuropeSenior

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.

API CI/CD Cloud Event Driven Architecture gRPC +5 skills

UST España Latam

Mid Java Developer — Enterprise Apps (Hybrid Madrid)

New EuropeMiddle

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.

Eclipse Git Java Kafka Oracle +2 skills

Fullstack Java Developer: Fraud Prevention (Remote, APX/ASO)

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

Backend Developer for AI-Driven System Integration

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.

API Java Jms Kafka Node.js +2 skills

Backend developer con experiencia en c, python, linux

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.

Bash Db2 Linux Machine Learning Oracle +2 skills

TECDATA ENGINEERING

Backend Developer — Java, APIs & AI-Driven Modernization

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.

API CI/CD Java Spring

Experis Manpower Group

Senior Backend developer .NET (H/M/X)

New HybridEuropeSenior

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.

Agile API Automation Azure Azure DevOps +33 skills

java developer in software development

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.

Agile API AWS Azure CI/CD +11 skills

UST España & Latam

AI-Enhanced Java Developer - Remote Spain

New RemoteEurope

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.

AI CI/CD GitHub Github Copilot Java +2 skills

Senior Java Developer — Remote, Spring Boot & Microservices

New EuropeSenior

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.

Git Java Kafka MongoDB NoSQL +3 skills

Alten Delivery Centre Spain

Senior Java Developer (German) – Remote & Cloud‑Native

New EuropeSenior

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.

AWS Azure Cloud Cloud Native Java +2 skills

ALTEN Delivery Centre Spain

Senior Java Developer (Remote) — Cloud-Native, German

New EuropeSenior

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.

CI/CD Cloud Cloud Native Java OpenAPI +3 skills

TECDATA ENGINEERING

Backend Developer – Arquitectura y Modernización

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.

API Claude Code Git Java Jms +4 skills

TECDATA ENGINEERING

BACKEND DEVELOPER – JAVA / INTEGRACIÓN / IA

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.

API AWS Azure CI/CD Claude Code +10 skills

Senior Java Backend Developer — 100% Remote & Flexible Hours

New EuropeSenior

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.

API Java OpenShift PostgreSQL React +1 skills

Java Developer (Kafka specialist)

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.

BDD Cloud Java JPA Kafka +3 skills

Java Backend Developer (Middle) - Flexible Hours

New EuropeMiddle

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.

API CI/CD Cloud ELK Grafana +7 skills

Grupo Tecdata Engineering

Backend Developer: Integrations & Generative AI

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.