Empleos de back-end developer en Madrid

We're a fast-growing startup building a recruitment platform. Our product helps recruiters spend less time on manual work, using LLMs to automate screening, scoring and the workflows around them.What you'll doYou'll own features end to end - from API design and data models to the event-driven pipelines that support recruiters.Build and maintain Python...

A global leader in FinTech is building a brand-new Engineering team and is looking for experienced Senior Software Engineers (Backend) to join them. They’re hiring across all levels, including Senior Engineers, Staff Engineers, Principal Engineers, even Team Leads.This is an opportunity to work on deeply technical, innovative solutions as part of a...

Backend Developer/Integration Engineer to design, develop, and integrate secure, scalable solutions using microservices, APIs, and cloud-native architectures. Requires strong Java, Spring Boot, Kubernetes, and AWS skills.

Expivi is the new kid on the block, a scale-up company based in the heart of Eindhoven. Expivi is a 3D E-Commerce SaaS platform. We call ourselves Expivians, and we want to become the market leader in advanced 3D Visualization and personalization worldwide. Expivi brings the next-generation online shopping experience to web shops. Using Expivi, customers can...

Location: Fully remote (European Union) Engagement: Contract, ongoing (initial term to end of September 2027) Start: ASAP About the role Our client, a global industrial technology company, runs a B2 B e-commerce platform and smart product catalogue built on Medusa, the open-source headless commerce engine. The backend is currently delivered by an external...

With over 10,000 employees across 60 cities in Europe,adessois one of the leading IT providers in the German-speaking market.For our office inadesso Spain, we are looking for aBack-End Developer with experience in Javato join our international team and contribute to the design and development of robust, scalable, and secure web applications.In this role, you...

Backend developer for a startup creating a recruitment platform, automating recruiter tasks with LLMs. Responsibilities include API design, Python backend services, serverless workflows on AWS, and LLM integration.

OverviewWe’re supporting a leading sports company in Málaga that is scaling its engineering team. They’re seeking an experienced C# Backend Developer to help design and implement robust, high-performing backend systems that power their global sports platforms. ResponsibilitiesDesign, develop, and maintain scalable backend services usingC# and .NET Core...

¡Estamos buscando un/a DESARROLLADOR/A BACKEND para unirse a nuestro equipo!¿Te apasiona el desarrollo Backend y quieres participar en todo el ciclo de vida de soluciones tecnológicas, desde el análisis funcional y técnico hasta su implantación y soporte? ¡Esta es tu oportunidad de trabajar en proyectos con arquitecturas modernas, microservicios y...

AiFi is seeking a Backend Software Engineer to optimize highly concurrent systems and scale our store operating systems from small to large venues. You will shape core backend microservices and collaborate with app developers and product managers to address real-world use cases and bottlenecks. Join a platform that enables real-time analytics and scalable...

Somos una empresa de ingeniería y tecnología con operaciones en España, Reino Unido, Alemania, Francia y Suecia. Trabajamos con las multinacionales más prestigiosas de Europa ayudándoles a implementar sus proyectos estratégicos. #En BCNC Group, estamos en búsqueda de un Backend Developer con PL/SQL, para formar parte de un proyecto estratégico del...

Backend Engineer Backend Engineer is a subsidiary company of Nationale Nederlanden Group located in Madrid, Spain. We deliver IT services and solutions for the different international Business Units from Nationale Nederlanden Group Node.js Backend Engineer , you will have plenty of opportunities to help us take the needed steps to modernise our backend...

Backend Engineer Backend Engineer is a subsidiary company of Nationale Nederlanden Group located in Madrid, Spain. We deliver IT services and solutions for the different international Business Units from Nationale Nederlanden Group Node.js Backend Engineer , you will have plenty of opportunities to help us take the needed steps to modernise our backend...

Medior/Senior Back-end Developer (PHP/Laravel) for a Dutch company | Full-time | Remote from ValenciaAre you an experienced Back-end Developer with solid PHP and Laravel experience, based in Valencia and looking for your next challenge?At this Dutch digital agency you'll work on complex, business-critical web applications for a Dutch digital agency where...

Impulsa la arquitectura backend del futuro con Java y sistemas distribuidos En Initium Software conectamos al mejor talento técnico con los proyectos más desafiantes e innovadores del mercado.No somos una consultora tradicional; somos socios estratégicos que creemos en el impacto real a través de la tecnología.Buscamos un Senior Backend Engineer...

Join SIX Financial Information's AI Engineering team as a Senior AI Backend Engineer of our Productization squad.You will own the backend, APIs, and integrations that turn AI prototypes into production-grade products in our GenAI and Data Mining lines.This is a high-leverage, player-coach role at the heart of how we scale AI delivery.You will set the...

Backend Engineer Backend Engineer is a subsidiary company of Nationale Nederlanden Group located in Madrid, Spain.We deliver IT services and solutions for the different international Business Units from Nationale Nederlanden Group Node.js Backend Engineer , you will have plenty of opportunities to help us take the needed steps to modernise our backend...

Backend Engineer – AI Integrations Department:Engineering Vic.ai is building the future of autonomous accounting using AI. We help finance teams eliminate manual invoice processing and unlock real-time financial intelligence by combining advanced machine learning, OCR, and scalable backend systems. We're a venture-backed, product-driven company...

Backend Engineer – AI Integrations Department:Engineering Vic.ai is building the future of autonomous accounting using AI. We help finance teams eliminate manual invoice processing and unlock real-time financial intelligence by combining advanced machine learning, OCR, and scalable backend systems. We're a venture-backed, product-driven company...

Principal Consultant | Open-Source, Embedded, CPU/GPU + Semiconductor Technologies Back End Developer (Python)***This is initially a Fixed Term Contract until the end of June 2026 - potential for extension/made permanent***We are working with a company that focuses on accelerating AI adoption, data literacy, and engineering capabilities through a combination...