Backend Jobs in Spain

.NET BackEnd Developer

API Azure Azure DevOps CI/CD C# +11 skills

Build and maintain backend services for a large fashion retail client using .NET/.NET Core, REST APIs, and SQL databases.

Enfint

Backend Developer

AI API Azure CI/CD Cloud +19 skills

Build and maintain the backend of a cybersecurity/AI platform that maps enterprise systems, integrates data sources, and optimizes distributed workflows using Python, .NET, or Java.

domestiko.com

Net backend developer

Azure Cloud C# Docker Kubernetes

Backend developer building web apps with .NET Core, C#, Azure, Docker, and Kubernetes in a full-time Madrid office role.

Backend Developer (PHP + Vue)

API Laravel MongoDB MySQL PHP +3 skills

Builds and maintains web apps using PHP (Laravel/Symfony) and Vue, designs databases, and integrates RESTful APIs in a collaborative, agile team.

Backend Developer [with german]

API Automation C# Docker Go +10 skills

Builds and maintains Go microservices, REST APIs, and integrations with SAP, ITSM tools, and databases while collaborating in an agile team requiring fluent German.

BackEnd Developer Batch C++

Angular C++ Git Linux NestJS +4 skills

Develop and maintain a C++ Batch Framework that powers high-traffic retail applications, fixing bugs and adding features to drive Mercadona’s digital transformation.

Backend Developer (LangChain / LangGraph) – Remote

Open 62d RemoteEuropeFull-time

Agentic AI AI LangChain LangGraph

Build and optimize AI agents using LangChain/LangGraph for backend systems, focusing on scalable architectures and agentic AI frameworks.

Tecdata

Senior .NET Backend Developer - 100% Remote

Open 62d EuropeSenior

Build and maintain scalable .NET backend services using C#, ASP.NET, REST APIs, and Entity Framework in a long-term remote role.

Backend Developer (PL/SQL)

Agile Confluence Data Lake Java Jira +3 skills

Backend developer building and maintaining financial treasury and derivatives systems in PL/SQL on GBO Tier1, migrating data to a Data Lake, and integrating with other systems.

Tecdata

Senior .NET Backend Developer - Remote (Madrid)

Open 62d EuropeSenior

Builds and maintains .NET backend services in C# and ASP.NET, designing REST APIs and following modern architectures.

Backend Developer con Kafka

BDD Java JPA Kafka MongoDB +5 skills

Backend developer building and maintaining Kafka-based microservices in Java/Spring Boot for a banking client, with on-call rotations and TDD practices.

Dormont Manufacturing Co

Backend Developer Digital Twin

Open 62d HybridEurope

Agile Azure Cloud Confluence Datadog +22 skills

Backend developer building event-driven Java services for telemetry data in a logistics-focused digital platform, using Spring Boot, Azure PaaS, and DevOps tooling.

Minor Hotels Europe and Americas

Senior Backend Developer, Java

Open 63d EuropeSenior

API AWS Cloud Docker Java +11 skills

Build and maintain Java-based backend services and cloud solutions, designing scalable microservices and integrating enterprise systems using Spring Boot, AWS, and Kafka.

Omegacrmconsulting

Backend Developer (Node.js & TypeScript) — Remote

Open 62d EuropeContract

API CRM Node.js PostgreSQL Redis +2 skills

Builds and maintains Node.js/TypeScript RESTful APIs and services, designs PostgreSQL schemas, and implements Redis caching for a CRM platform.

Omegacrmconsulting

Backend Developer (Node.js/TypeScript)

Open 62d EuropeContract

Analytics Angular API AWS Cloud +13 skills

Build and maintain Node.js/TypeScript backend services and RESTful APIs for CRM and customer-experience projects, using PostgreSQL and Redis.

SII Group Spain

Backend Developer .NET

Backend Developer building and maintaining .NET applications, writing unit tests, and collaborating with a technical lead in a hybrid work setup.

ChatGPT Claude Code .NET

Softtek

Backend developer

AWS CI/CD CLI Cloud CloudFormation +5 skills

Backend developer builds AWS-based contact-center features using Lambda, Amazon Connect, and Lex for a banking client, writing Python code and following CI/CD pipelines.

CMV Consultores

Backend Developer NodeJS

API AWS CI/CD Cloud Docker +11 skills

Build and scale robust Node.js microservices and RESTful APIs for a global insurance client using TypeScript, PostgreSQL, and AWS.

up to 35K €

Linde Material Handling

Backend Developer

Agentic AI AI Analytics Automation Azure +18 skills

Build and deploy AI-driven data analytics and generative AI solutions on Azure and GCP, including MLOps pipelines and agentic AI workflows.

Festo

Java Backend Developer

Agile Analytics Automation AWS E-commerce +3 skills

Design and build backend services in Java/Spring Boot to power Festo’s digital sales and product configuration tools, collaborating in an agile startup-like unit within a large industrial firm.