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Senior backend Java developer at EY GDS in Málaga (hybrid) building enterprise-grade banking applications for financial institutions across Europe. Day-to-day involves developing Java microservices with Spring Boot, Oracle DB/PL-SQL work, REST APIs, and CI/CD in agile teams.
World Tech Enterprises is hiring a mid/senior Java backend developer for an aeronautics project with a major Spanish airline. Day to day: building backend services with Java/Spring Boot, writing and maintaining tests (JUnit/Mockito), and working with CI/CD pipelines and cloud (AWS/Azure/GCP). Hybrid from Madrid: only 1 office day per week.
Senior backend developer at a Barcelona Health-Tech company building and scaling medication-management services with Node.js, NestJS and AWS, including a migration from a hybrid AWS architecture to serverless (Lambda, API Gateway, RDS) and working with MySQL and DynamoDB. Hybrid role: 4 days on-site, 1 remote, close collaboration with the CTO in a 6-person engineering team.
Legacy Java Developer at SOTEC Consulting (Grupo Astek): maintain, analyze and refactor Java/Spring Boot applications, document in JIRA/Confluence, contribute to CI/CD, and use AI tools like GitHub Copilot and Devin. 100% remote in Spain on a permanent full-time contract; salary set by experience.
Java Developer at ALTEN Spain (Madrid, with telework options): developing with Java, Spring Boot, microservices, relational databases and AWS. Requires C1+ English; role is within a large European engineering and IT consulting multinational.
Java backend developer for an insurance-sector project in Barcelona: designing, building and evolving Spring Boot microservices with REST APIs, Kafka-based event integrations and MongoDB, plus unit testing, technical documentation and Agile/Scrum collaboration.
Senior Java engineer at Intellias, consulting for a Fortune 100 industrial manufacturer, building cloud-based backend services and data products remotely from Spain. Day to day: Spring Boot microservices, event-driven pipelines with Kafka/Kinesis on AWS, PostgreSQL/DynamoDB data work, testing, and GitHub Actions CI/CD.
Senior Backend Developer at a health-tech company in Barcelona building and scaling backend services and APIs with Node.js, NestJS, and AWS (Lambda, API Gateway, RDS), migrating toward a serverless architecture, modeling data in MySQL and DynamoDB, and applying CI/CD, testing, and Agile practices while mentoring teammates.
Maintains and develops Java/Jakarta EE applications on Linux integrated with VW's mainframe: 3rd-level support, defect/requirement analysis with users, and solution design. Core stack: WebSphere Liberty/WAS, JSF/PrimeFaces, JSP, EJB/JPA/CDI, Angular, Maven/Eclipse and Git, with possible technical team coordination.
ALTEN Spain is hiring a Java Developer in Vitoria-Gasteiz (remote work options available) to build backend services with Java, Spring Boot, and microservices, working with relational databases and AWS. C1+ English is required.
Arktic, a Spanish business and technology consultancy, is hiring a junior backend Java developer to build server-side services for client projects. Day to day involves Java, Spring, Hibernate, Maven, Git, Jenkins, and SQL/NoSQL databases, with remote work options available.
Build a Python/Flask API to automate tasks on IBM Cloud virtual servers, managing infrastructure deployments with Terraform and integrating them into Jenkins CI/CD pipelines. A hybrid junior-to-mid role (1-2 years' experience) for Experis España in Spain.
Backend/AI software engineer at consultancy Arelance (Vigo, Spain) building production-grade Agentic AI systems on an AI & Data team. Day-to-day: Python/FastAPI APIs, LLM agent workflows with LangGraph/LangChain/AWS Bedrock, deployed on AWS Kubernetes/EKS, with CI/CD, Docker, Terraform and observability. Permanent contract, remote options, up to €65k.
Senior Backend Engineer who designs, builds, and operates production-grade Python services and REST APIs that integrate AI/LLM and ML capabilities in a large enterprise environment. Core stack: Python, AWS, Docker/Kubernetes, relational databases, CI/CD; hybrid with 2 days onsite in Viladecans, Barcelona.
Full Stack Engineer (Python/FastAPI + React) joining the Vulnerability team in the cybersecurity domain of a large German group's Barcelona tech hub, building the platform that centralizes and processes global vulnerability data (integrating Splunk, ServiceNow, Salesforce). Hybrid role: ~8 office days/month near Plaza Cataluña.
Senior Python Developer at Plexus Tech (Spain) building projects with Python and Django plus TypeScript, backed by PostgreSQL, Redis and RabbitMQ, and deployed with Docker and Kubernetes. Requires 5+ years of development experience and offers a permanent contract with 100% remote work.
Builds a Model Context Protocol (MCP) so AI agents can interact natively with PubMatic, automating programmatic ad operations (inventory, deals, floor prices, OpenWrap/header bidding) plus real-time reporting and optimization. Uses Python, LangChain/LangGraph, APIs, BigQuery and cloud. Hybrid in Madrid, €33k–38k.
Senior Python developer joining a backend platform team that builds high-performance, high-volume distributed services, owning complex architecture components end-to-end in production. Core stack: Python, SQL (SQL Server/Oracle/PostgreSQL) and CI/CD pipelines; role is 100% remote.
Consulting role joining a market-risk project as an ActiveViam Developer: day-to-day development in Java (J2EE) and Python on the ActiveViam platform, building OLAP-cube/analytical database solutions and risk calculations such as sensitivities and VaR. Offered 100% remote on a permanent contract.
A senior Python engineer at King builds and operates backend services, APIs, and data-driven platforms for forecasting and analytics, including distributed pipelines, OLTP database optimization, and cloud-native containerized deployments integrated with King and Microsoft ecosystems.
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