215 backend developer English-speaking jobs in Madrid

ABOUT THE ROLE We are looking for a Python Backend Developer to build and extend the backend of an internal ... developer portal and dashboard, using AI coding tools in daily work. ... WHAT YOU WILL DO Continue the development and extension of the internal developer portal and dashboard ... MUST HAVES Python Expertise: Strong hands-on backend development experience of at least 4 years using ... Design, build, and maintain a robust custom Python backend to support core application features.

experience Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go Backend

Feature Developer: Contribute to new features, bug fixes, and optimizations.

Developer Platform: Help develop shared libraries, SDKs and developer-facing infrastructure that make ... Experience with role-based access control, API security or developer platforms. ... Build the Security Infrastructure Powering Global Investing Have you built and operated scalable backend ... You'll join a small engineering team with significant ownership across backend services and frontend ... Strong backend engineering skills, with experience designing, building and operating production services

inWeb Development. 5 years in .NET backend development. 1 year experience in Python (focused in backend ... Here at CORUS we are looking for a skilled Senior Full Stack Developer to to join our team for an international ... As a Senior Full Stack Developer your skills and experience will ideally include: 5 years experience

We're looking for a Senior Python Developer to join our team in Madrid or Barcelona, Spain in a hybrid ... Requirements Degree in Computer Science, Software Engineering or related field Proven experience as a Python Developer ... Join a cutting-edge AI platform initiative where your backend engineering expertise will power secure ... In this role, you will design and implement secure, high-performing backend services that enable generative ... building backend services with FastAPI Hands-on experience developing GraphQL APIs with tools such as

Design and implement backend services, APIs, business logic, and third-party integrations. ... Strong full-stack capabilities, with the ability to work independently across frontend and backend. ... We are currently looking for a strong Senior Full-Stack Developer to join an international engineering ... and backend, take ownership of features from initial design to production, and contribute to architectural ... About The Role We're looking for a Senior Full-Stack Developer who can work confidently across frontend

Claude Code) to improve developer experience and delivery. ... Proactive learner with pragmatic adoption of AI‐assisted developer tools (for example GitHub Copilot, ... Key Responsibilities As a Backend Engineer within Advanced Analytics (DA3) in the Chief Data & AI Office ... backend services and REST APIs powering AI-enabled solutions: clean interfaces, robust domain models ... As a Backend Engineer, you are in charge of the following responsibilities: Design, build, and maintain

Understanding of backend systems related to video streaming , such as content delivery networks (CDNs ... Collaborate with cross-functional teams, including product managers , designers , and backend developers ... We are hiring a Senior Apple TV Developer to join our team in Spain! Location : Anywhere in Spain! ... About the Role : As a Senior Apple TV Developer , you will play a key role in designing, developing, ... Consulting Referrals increase your chances of interviewing at AgileTV by 2x Get notified about new iOS Developer

Hands-on Engineering Roots: Background in backend software development, enabling you to design and build ... Continuously innovate and propose infrastructure improvements based on developer feedback. ... Engineering Manager, Developer Experience (Platform & AI) Location: Madrid Work Model: Hybrid (4 days ... in-office / 1 day WFH) About the Team The Developer Experience (DevExp) team builds and operates the ... Platform Background: You have built or operated an Internal Developer Platform (Backstage or similar)

We are looking for a mid-to-senior Frontend / UI Developer to join the Risk Navigator technology team ... This is an opportunity for a developer with strong JavaScript, TypeScript, and React experience, a good ... Collaborate with backend developers and contribute where appropriate to Java and Spring-based services ... Experience integrating frontend applications with backend services, APIs, authentication flows, data ... eye for design and usability, and the ability to work across the stack with Java and Spring-based backend

services, tooling, and design system Ensure a great developer experience and continuously improve performance ... Whether you're shaping frontend architecture, contributing to backend services, maintaining our Design ... Core team to ship high-quality features quickly Contribute to and evolve our frontend architecture, backend ... Shadcn, Felte + zod Testing : Vitest (unit), Playwright (E2E) Design System : Custom-built (MeltUI) Backend ... fluent in TypeScript , comfortable with modern frontend frameworks, and able to contribute to Node.js backend

Full stack development and integrations: Backend (APIs, integrations, authentication), user interface ... We are looking for a full stack developer experienced with LLMs and AWS to design, build, and deploy ... unique Customer Relationship with mainly focus on Innovation is looking for a AI / Cloud Full Stack Developer

We're looking for a Frontend Developer with 4 years of experience to join our amazing team. ... wireframes and prototypes into functional interfaces Integrate front-end applications with RESTful APIs and backend

We are looking for a Senior HCL Digital Experience (DX) / WCM Developer to join our team and contribute ... Implement backend solutions using Java and Java EE, including portlet development and JSF.

Proven AI Production Experience: Active, hands-on production use of AI-driven developer tooling, agentic ... Full-Lifecycle Ownership: Own end-to-end mobile capabilities—from local data persistence and security layers to backend

Premier Research is looking for a Senior R Programmer/ Shiny Developer to join our Biostatistics team ... Expertise in optimizing the performance of Shiny applications, including frontend, backend, and infrastructure ... applications to hundreds of users, with experience in performance optimization at various levels (frontend, backend

proactively identify and solve project, process, technology, or business issues that affect scalability, developer ... Senior Software Engineer, Backend (Comms Core) Remote Spain At Affim, we exist for the moments that matter—giving ... As a senior backend engineer, you will shape multi-region, multi-tenant infrastructure, APIs, and vendor ... You will design and evolve reliable backend services for high-volume communications across multi-region

We are looking for a Backend Engineer who is excited to build modern, reliable backend services and grow ... This role is perfect for someone who already has hands-on backend experience and is ready to level up ... c and TypeScript Solid understanding of backend fundamentals, including asynchronous programming, API ... Role requirements 2-4 years of professional experience as a backend or full-stack engineer, working with ... Your Responsibilities on this role You will build and maintain backend services using Node.js and TypeScript

We are looking for a self‐motivated and dedicated Fullstack Developer who wants to work with Elixir. ... That you have developed backend services or applications, ideally with Python or Elixir as bonus points