107 backend developer English-speaking jobs in Community of Madrid

A Backend Developer who has a strong expertise in Java or .NET to design, develop, and maintain backend ... Proven experience in backend software development within enterprise environments. ... Ensure code quality, maintainability, and consistency across the backend codebase. ... Develop backend software using Java (Spring Boot) or .NET Core, depending on the product stack. ... Main tasks and accountabilities will be: Design, develop, and maintain backend services in a distributed

Proven experience as a Full‐Stack Developer in enterprise environments. ... Write and maintain unit and integration tests across frontend and backend components. ... Collaborate closely with backend developers, QA engineers, DevOps, and product stakeholders. ... Design, develop, and maintain backend services in a distributed, service‐oriented architecture. ... Support applications running in production, including analysis of frontend and backend issues.

We are looking for a Java Backend Developer to contribute in a project with one of our global customers

Main Job Requirements Proven experience as a Full Stack Developer, preferably in AI-related projects ... We are looking for a Full Stack AI Engineer with strong experience in Python backend development and ... Strong backend development skills in Python using frameworks such as FastAPI, Flask, or Django Solid ... responsive UI) Good knowledge of API design (RESTful and/or GraphQL) and integration between frontend, backend

We are looking for a Java Banckend developer, for working on challenging projects in a dynamic, cross‐functional ... Mandatory requirements: +5 years Strong experience in Java backend development and software design. ... Key Responsibilities: Design and build complex backend systems using Java, Spring Boot and RESTful services

We are seeking an experienced Full Stack Developer to join our team working on an open-source AI chat ... Key Responsibilities: Develop and maintain both frontend and backend components of the AI chat platform ... management React Router for client-side routing State management with modern React patterns Backend ... provider integrations and chat functionalities Work with modern React-based frontend and Node.js/Express backend ... development 2+ years of React.js development with modern patterns 2+ years of Node.js and Express.js backend

We are looking for an experienced Senior Full Stack Developer to join our core team as a B2B partner. ... While this is a full‑stack role, your primary focus (~80%) will be driving the Backend architecture ( ... Core Technical Stack (Required) Backend (Primary Focus): Node.js (v18+) with Express.js framework. ... What You Will Do Take ownership of the backend components, building a sophisticated AI chat platform

having shipped and operated production code; fluency with Git, code review, CI/testing, and modern backend ... Developer adoption and enablement: Drive onboarding at the squad/team level; standardize templates and ... Cross‑functional leadership: Partner with Developer Productivity and the rest of the involved teams to ... Product management experience: 3+ years as a PM (or equivalent product ownership), preferably in developer ... Knowledge base/MCP‑style integrations, vector search/RAG, and best‑practices standardization for developer

For one of our key clients, we are currently looking for a Senior Full Stack Developer with experience ... Backend experience: +5 years with Java, Spring Boot Architecture: Service-Oriented Architecture, RESTful

We are currently working with a fast-growing international fintech, seeking a Senior Backend Engineer ... What you'll do: Develop and maintain scalable, reliable backend systems that power key financial operations ... culture Hybrid model: 4 days in the office, 1 remote Your profile: Strong experience building complex backend

Build frontend web applications, backend services, APIs, and data flows. ... If you enjoy working across the stack—from frontend to backend and infrastructure—and want to influence ... Experience with frontend frameworks like React, Vue, or Angular Understanding of backend technologies

e.g., FastAPI, Flask, or Django) to handle application logic and data workflows Integrate frontend, backend ... frontends using React, ensuring excellent user experience and performance Develop robust and scalable backend ... or a related field Strong programming skills in Python, with experience developing and maintaining backend ... API design principles (RESTful or GraphQL), integration patterns, and data exchange between frontend, backend

ServiceNow Junior Developer 100% (m/w/d) Apply for the ServiceNow Junior Developer 100% (m/w/d) role ... We are seeking a Junior ServiceNow Developer to join our IT Service Management engineering team.

We are looking for Senior Java Developer with background working with a Business Rule Engine who will ... You bring extensive experience as a Java developer and know-how on the software development process. ... integration or similar Experience with Oracle DB and SQL Job Responsibilities / Role As a Rule Java developer

We are looking for Actico Platform & Java Developer who will contribute to a project with one of our ... You bring extensive experience as a Java developer and know-how on the software development process. ... Actico Rules) integration Experience with Oracle DB and SQL Job Responsibilities / Role As a Rule Java developer

Drive AI-powered automation initiatives to improve developer productivity and operational efficiency. ... Knowledge of CI/CD pipelines and enterprise development environments (CI/CD, observability, developer ... Develop and maintain APIs, pipelines, and integrations for AI features across internal platforms (developer

A Kafka Developer to join a stable international project, based in Madrid.

Develop and implement front-end functions for italki products using React and other technologies. Collaborate with back-end teams to optimize performance and user experience.

NET Developer to collaborate with our global partner, a leader in financial services.

iOS Engineer to design, implement, and maintain the italki mobile application. Requires 4+ years of experience with iOS frameworks, C/C++, Objective-C, and Swift.