20 publicaciones de empleo destacadas de ui developer en madrid, md (¡Están contratando!)

Senior Full Stack Developer (Node.js Focus) – Open-Source AI Platform
Yopeso Romania SRL —Madrid, Madrid provincia
- Jornada completa
- Trabajo híbrido
- DevOps
- Inglés
- Máster
Solicitud rápida
ServiceNow Developer 100% (f/m/d)
Julius Baer —Madrid, Madrid provincia
- Jornada completa
- Informática
- Sistemas ERP
- Inglés
Expert Manager, Software Engineering (Full Stack)
Bain & Company Inc —Lisboa
- Jornada completa
Full Stack AI Engineer | Madrid
UST Global —Madrid, Madrid provincia
- Español
- Informática
- Inglés
- Abono gimnasio
Software Development Engineer - Cronos
IQVIA —Madrid, Madrid provincia
- Jornada completa
- Informática
- DevOps
- SQL
Software Engineer (Go)
Agentero —Madrid, Madrid provincia
- De 50.000 € a 80.000 € al año
- Teletrabajo
- JavaScript
- APIs
Solicitud rápida
QA Engineer (Hybrid)
Thales —Madrid, Madrid provincia
- Jornada completa
- Español
- Oracle
- Inglés
React Native Developer (Wallet team) - 100% remote
Tether Operations Limited —Madrid, Madrid provincia
- Jornada completa
- Teletrabajo
- Inglés
- Java
- C++
Senior QA Engineer
TechBiz Global GmbH —Madrid, Madrid provincia
- Jornada completa
- Teletrabajo
- Inglés
- Grado
- APIs
Solicitud rápida
3d
Web Development Manager
Simon-Kucher & Partners —Madrid, Madrid provincia
- Oficina
- JavaScript
- Marketing
Full Stack Engineer (Python)
ThetaRay —Madrid, Madrid provincia
- Español
- Inglés
- JavaScript
3DExperience E2E Testing Consultant
Capgemini —Madrid, Madrid provincia
- Inglés
- Java
- JavaScript
Senior Motion Grapher (Temporary)
Electronic Arts —Madrid, Madrid provincia
- Trabajo híbrido
- Oficina
- Inteligencia artificial
- Vacaciones pagadas
9d
Expert Manager, Software Engineering (Full Stack)
Bain & Co. —Madrid, Madrid provincia
- Jornada completa
- Español
- Azure
- Informática
Solicitud rápida
Senior Dynamics 365 Customer Service & USD Developer
Excelia, SL —Pozuelo de Alarcón, Madrid provincia
- Jornada completa
- Teletrabajo
- Servicio al cliente
- Oficina
- JavaScript
Solicitud rápida
2d
Software Development Engineer (Java/AWS), FireTV
Amazon Spain Services, S.L.U. —Madrid, Madrid provincia
- Jornada completa
- Informática
- Java
- AWS
Senior QA Engineer
CH-Bluesign —Madrid, Madrid provincia
- Jornada completa
- Trabajo híbrido
- Azure
- DevOps
- Inglés
Solicitud rápida
Quality Assurance Engineer - Automation (m/f/x)
osapiens —Madrid, Madrid provincia
- Jornada completa
- Trabajo híbrido
- Azure
- DevOps
- Inglés
Solicitud rápida
It & Digitalization Manager
STS —Madrid, Madrid provincia
- Jornada completa
- Teletrabajo
- Azure
- Oracle
- Informática
Solicitud rápida
Web / CMS Project Manager
Omega CRM —Madrid, Madrid provincia
- Trabajo híbrido
- CRM software
- Salesforce
- Project management
Solicitud rápida

Quiero recibir la alerta de empleo más reciente de ui developer en madrid, md

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Senior Full Stack Developer (Node.js Focus) – Open-Source AI Platform

Yopeso Romania SRL -
Madrid, Madrid provincia

Solicitud rápida

Detalles del empleo

Jornada completa

Cualificaciones

Node.js
Derecho
React
DevOps
Git
Inglés
MongoDB
Máster
Docker
Grado
PostgreSQL
Redis
APIs
UI
Inteligencia artificial

Descripción completa del empleo

Yopeso has been developing a diverse range of software products, from large-scale applications to smaller solutions, for 20 years. With a growing team of over 300 employees across five locations, we are dedicated to fostering a culture of growth, transparency, and professionalism.

At Yopeso, we value authenticity, curiosity, and ambition. These values drive us to build strong connections within our community and with our partners, ensuring trust, integrity, and transparency in all our business practices. We strive to maintain the highest professional standards and continuously challenge ourselves to develop high-quality, high-performance, and secure software solutions.

Our approach is rooted in efficient collaboration among passionate professionals working in agile teams. Guided by curiosity and ambition, we strive to create products that are meaningful and impactful, while remaining true to our authentic selves.

About the Project

We are building a sophisticated, open-source AI conversational platform that integrates multiple AI providers to deliver a rich, cutting-edge user experience. 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 (Node.js), while occasionally supporting the modern React frontend. If you are passionate about LLMs, prompt engineering, and building robust, scalable systems, this is the project for you.

The Setup & Work Arrangement

Location: Hybrid. We require availability to be on-site at our Madrid office 2-3 days per week for architectural alignment, team syncs, and workshops. The rest of the time is remote.
Language: Fluent English is required.

What You Will Do

Take ownership of the backend components, building a sophisticated AI chat platform.
Implement new AI provider integrations (OpenAI, Claude, etc.) and complex chat functionalities.
Design and optimize database structures using MongoDB and PostgreSQL.
Implement and maintain real-time features using WebSocket connections.
Ensure code quality through automated testing and participate in high-standard code reviews.
Deploy and maintain containerized applications using Docker.

Core Technical Stack (Required)

Backend (Primary Focus):

Node.js (v18+) with Express.js framework.
Databases: MongoDB (with Mongoose), PostgreSQL, Redis (for caching & session management).
RESTful API design, JWT, and session-based authentication.

Frontend:

React.js (v18+) with functional components and hooks.
TypeScript for type-safe development.
Tooling & Styling: Vite, TailwindCSS, Radix UI / Headless UI.
State & Data: Tanstack Query (React Query), modern React state patterns, React Router.

DevOps & Tools:

Docker & Docker Compose.
Git advanced workflows, ESLint, Prettier.
Environment configuration and secrets management.

The "Nice-to-Haves" (Bonus Points)

Hands-on experience with OpenAI API, Anthropic Claude, or similar LLM APIs.
Understanding of prompt engineering and AI model integration.
Experience with the LangChain framework.
RAG (Retrieval-Augmented Generation) implementation experience.

Why Partner With Us?

Work on a modern, open-source AI product.
Direct collaboration with product and design stakeholders in a fast-paced, innovative environment.
Long-term B2B collaboration with competitive market rates.

Solicitud rápida

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ui developer empleos en madrid, md

Senior Full Stack Developer (Node.js Focus) – Open-Source AI Platform

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Software Development Engineer (Java/AWS), FireTV

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Quality Assurance Engineer - Automation (m/f/x)

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Quiero recibir la alerta de empleo más reciente de ui developer en madrid, md

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About the Project

The Setup & Work Arrangement

What You Will Do

Core Technical Stack (Required)

The "Nice-to-Haves" (Bonus Points)

Why Partner With Us?

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