876 backend developer English-speaking jobs in Madrid

Integrate backend systems with third‑party APIs, services, and databases. ... Strong understanding of backend frameworks and libraries (e.g., Django, Express.js). ... Stay current on backend development trends, best practices, and emerging technologies. ... Optimize backend code/configurations for performance, scalability, and maintainability. ... Participate in test strategy to ensure the reliability and correctness of backend code.

Solid backend experience with a typed language (.NET Core/C#, Java/Spring, Go, or similar). ... Our current stack is React + Vite on the frontend and .NET Core on the backend, but what matters most ... Our backend is .NET Core — same principle applies: fundamentals matter more than exact stack match. ... RESPONSIBILITIES Design, develop, and deliver features across our React + Vite frontend and .NET Core backend

Have strong backend fundamentals and experience building APIs and backend services. ... across the full stack of our SaaS platform, using React and Next.js on the frontend and Express on the backend

Have strong backend fundamentals and experience building APIs and backend services. ... across the full stack of our SaaS platform, using React and Next.js on the frontend and Express on the backend

We seek a MuleSoft Developer, Senior who shares our passion for innovation and change.

Job title: Veeva Developer Job Description: Veeva Content Development · Build and maintain CLM (Closed

IAM Developer needed for a stable international project in Madrid. Responsibilities include managing users, credentials, and certificates, developing authentication flows and adapters, and supporting application onboarding and incident resolution.

Role: Wordpress Developer IF YOU ARE INTERESTED, PLEASE SHARE YOUR CV IN ENGLISH LANGUAGE ONLY!

Location: Madrid, Spain (Hybrid) Sector: Capital Markets / Banking Are you a Java Developer with a strong

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.

Develop and implement front-end functions for italki products using React. Collaborate with back-end teams to optimize performance and user experience. Requires 5+ years of development experience, including 2+ years with React, and proficiency in web technologies like JavaScript, HTML, CSS, and DOM.

Requirements More than 5 years as a Full Stack Developer in enterprise environments. ... We’re seeking a Senior Fullstack Developer with experience in .NET and Angular to join our Application

WHAT YOU WILL DO Work full‑stack with a backend emphasis. ... Ability to write automated backend tests (unit and integration). ... MUST HAVES 4+ years of backend development experience with Java (preferably Java 11+).

We’re growing and scaling fast, and we need a Backend Engineer who can deliver high-quality integrations ... 🛠️ Tech we use Node.js + TypeScript (backend services & integrations) Kubernetes (K8s) in production ... stack → metrics, tracing, logging, dashboards, and alerts What we’re looking for 3+ years building backend

Solid understanding of scalable backend systems, performance optimization, and client‑server architecture ... Build, lead, and mentor a high‑performing development team (including Unity engineers and backend developers ... Leadership & Architecture Own and evolve the full technical architecture across game clients (Unity), backend ... Blast—ensuring high development velocity, strong code quality, and scalable architecture across client, backend

~ Solid backend experience with a typed language (.NET Core/C#, Java/Spring, Go, or similar). ... Our current stack is React + Vite on the frontend and .NET Core on the backend, but what matters most ... Our backend is .NET Core — same principle applies: fundamentals matter more than exact stack match. ... RESPONSIBILITIES Design, develop, and deliver features across our React + Vite frontend and .NET Core backend

We are looking for a Senior Backend Engineer (Java/SpringBoot) to join our team and work on exciting ... Science or related field, or proven relevant working experience Very good English level OUR STACK Backend

Assist in the development of core game mechanics, Editor utility plugins, and backend tools. ... With strong expertise in backend, multiplayer, and VR/XR systems, we license our proprietary technologies

With strong expertise in backend, multiplayer, and VR/XR systems, we license our proprietary technologies

Mandatory : 8+ years designing, developing, deploying, and maintaining backend services and distributed ... maintain Spring Boot–based services for ingesting and processing event-driven data Build secure, scalable backend