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Backend .NET Developer (4+ years) building internationally impactful, highly scalable and secure products on .NET Core with Azure microservices architectures. Day to day: backend development in .NET/.NET Core, code reviews, and close collaboration with architects across the full software lifecycle.
Arktic, a young Spanish business/tech consulting firm, is hiring a backend Java developer with ~3 years of experience in Spring, Maven, Git, Hibernate and REST/SOAP. The role is hybrid based in Madrid (Alcobendas) and includes a career plan and continuous training.
Senior backend developer at Plexus Tech building PL/SQL-based systems for the banking sector and accounting processes. Requires 4+ years of PL/SQL experience; Java and Spring Boot are valued. Remote position working from Oviedo/Gijón, Spain, with indefinite contract, telework option and continuous training.
Backend Developer (Java/Spring) joining a tech architecture and modernization team in Madrid (hybrid, 3 days/week in Alcobendas offices). The role focuses on application integration and evolution projects applying generative AI, requiring 3+ years of backend experience with APIs, microservices, messaging tools, relational databases, and Git.
Senior backend developer role in Barcelona (hybrid) building services with .NET Framework/Core. Day to day involves applying DDD, working with REST/SOAP services, and CI/CD DevOps practices; unit/E2E testing valued. Permanent contract with company-paid health insurance and flexible pay.
Backend developer on a technology architecture & modernization team, integrating and modernizing applications (including with generative AI tools like Claude Code). Day-to-day work spans Java/Spring or Node.js, REST/SOAP APIs, microservices, and integration tech such as Kafka, RabbitMQ, JMS and Apache Camel. Hybrid role based in Alcobendas, Madrid (2 office days/week).
Senior backend developer at HCLTech in Spain building Java 8/11 Spring Boot microservices with an API-first approach (OpenAPI/Swagger). Day to day involves API development, CI/CD via Azure DevOps, and integration/testing tooling, with telework options available.
Capitole seeks a Senior Backend Java Developer to work 100% remotely improving an e-commerce platform, with a focus on APIs and clean code in two-week sprint cycles. The valued stack includes Java 17/21, Spring Boot, and NoSQL databases.
Backend developer with 3+ years of experience building system-integration and legacy modernization projects — REST/SOAP APIs, microservices, and messaging/integration tooling like Kafka, RabbitMQ, and Apache Camel — while applying generative AI, especially Claude Code, in the daily development workflow. Java/Spring or Node.js stack on relational databases.
Backend developer at TECDATA ENGINEERING (hybrid, Alcobendas/Madrid) building services, REST/SOAP APIs, microservices and batch processes, and integrating heterogeneous enterprise systems (ERP, middleware, ESB/iPaaS like Apache Camel). The role also modernizes legacy Java EE apps and uses generative AI (Claude Code) for code generation, testing and migration.
Backend developer at RawData building a B2B SaaS product for the agri-food sector, working 100% remotely from Spain. Day to day involves integrating with external systems and payroll calculation, defining architecture with the Tech Lead using Python, FastAPI, PostgreSQL, and REST APIs.
Arktic is hiring a Java backend developer with 5+ years of experience to build and maintain microservices on AWS in a hybrid role based in Madrid, with remote/home-office options. Daily work centers on Java backend development, microservices architecture, CI/CD pipelines, and automated testing.
Grupo Digital is hiring a senior Java backend developer to design, build and optimize critical batch processes (jobs, readers, writers) using Spring Batch and Spring Boot for financial-sector projects. The role is 100% remote from Spain on a permanent contract within a consolidated team of ~10 people.
Senior Java backend developer at Métrica, working on a stable transport/mobility project in Madrid: developing, deploying and supporting critical card payment services with a focus on performance, security and high availability.
Full On Net is hiring a Python backend developer for a Telefónica project: building TCDN components with Python, plus testing and documentation, in a 100% remote role with flexible hours. Django, testing and REST APIs experience is valued; Angular and modern architectures are a plus.
CAS Training seeks a Senior Python Backend Developer for a platform team building high-performance distributed services that handle large processing volumes. The role is 100% remote from anywhere in Spain and requires 7+ years of experience developing, deploying, and operating production systems.
A .NET backend/data developer role in Barcelona for BETWEEN's team: the person analyzes requirements, modifies software and databases, manages versions, runs tests, and writes documentation, while helping build custom solutions at BETWEEN Labs. Core focus is .NET development plus database analysis and management.
Kirey España is hiring a Quadient developer (frontend and backend) to help implement digital onboarding solutions, working fully remotely with an indefinite contract. The role requires B2-level English and values certified Quadient experience and Atlassian tooling skills.
Capitole is hiring a .NET backend developer in Bilbao with 4+ years of experience to build internationally-impacting products on Azure using microservices. Day-to-day work involves C#/.NET Core, RESTful APIs, and DevOps tooling within a Scrum-based agile team alongside architects and other developers.
Backend developer at RawData building a SaaS platform for agri-food cooperatives, distributors and large clients, using Python and FastAPI. The role is 100% remote from Spain and centers on integrations with client systems and other data sources.
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