Empleos de api developer en Madrid

Zendit is IDT’s B2B digital payments API platform — enabling mobile top-ups, eSIMs, digital gift cards, and payment services for developers and enterprises worldwide. The product is live, the customer base is growing, and we are now investing in the marketing engine that turns pipeline into revenue.We are looking for a hands‑on B2B Marketing & Sales...

Mid-Senior Level | Engineering - Integrations & ProductAbout the RoleWe're looking for a mid-to-senior fullstack developer to help build and evolve this platform end to end — from the Java/Spring backend services to the React-based frontend — while working closely with the teams responsible for third-party integrations, platform infrastructure, and the...

Desarrolladores/as y Tech Lead Fullstack Java Desde Zemsania, estamos seleccionando, para importante empresa del sector situada en Madrid, perfiles de: - FULLSTACK DEVELOPER JAVA/ANGULAR - TECH LEAD FULLSTACK JAVA/ANGULAR PERFIL DEVELOPER: Requisitos Indispensables: 4-5 años de experiencia en desarrollo de software. Más de 3 años de experiencia con...

Key ResponsibilitiesAs a Backend Engineer within Advanced Analytics (DA3) in the Chief Data & AI Office area at Allianz Partners, you will join our central AI team to build reusable AI foundations and production‑grade AI services on a global scale. We are looking for an engineer with strong software engineering fundamentals and hands‑on cloud and DevOps...

We are looking for an AI Tooling Engineer in Spain. This high-impact engineering role focuses on shaping how developers and AI agents interact with modern backend infrastructure and developer tooling. You will help design and build AI-native interfaces that power workflows across dashboards, documentation, and internal platforms. The role blends strong...

Timestamp busca un/a Power BI Developer para participar en proyectos de Business Intelligence, Data & Analytics. Se valorará experiencia en soluciones con Power BI, DAX y Power Query, así como modelado de datos y despliegue. Se requiere formación en Ingeniería/Matemáticas/Estadística o equivalente y al menos 2–3 años en BI. Se valorará experiencia...

Mystery Project busca un Senior Backend Developer para Barcelona, con funciones de diseño, desarrollo y despliegue de APIs escalables usando Node.js, TypeScript y NestJS. El candidato trabajará en migración hacia una arquitectura serverless en AWS y contribuirá a soluciones basadas en eventos con Lambdas, API Gateway y RDS. Formarás parte de un equipo...

Mystery Project en Barcelona busca un/a Senior Backend Developer para reforzar un equipo tecnológico compacto y con capacidad real de decisión. Se ofrece modalidad híbrida y una banda salarial de 55.000 € a 60.000 € brutos al año, según experiencia.La misión es evolucionar y escalar el backend de una health-tech en expansión, migrando a una...

We are looking for an AI Tooling Engineer in Spain. This high-impact engineering role focuses on shaping how developers and AI agents interact with modern backend infrastructure and developer tooling. You will help design and build AI-native interfaces that power workflows across dashboards, documentation, and internal platforms. The role blends strong...

We are looking for the very Top Talent...and we would be delighted if you were to join our team!More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services,...

We are looking for the very Top Talent...and we would be delighted if you were to join our team!More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services,...

We are looking for a Platform Engineer to join a team responsible for building and operating the core control plane of a cloud platform. You will work on highly available, secure, multi-tenant Kubernetes environments and the internal tooling that enables teams to reliably deploy and operate services at scale.This role sits at the intersection of SRE,...

Raona, una compañía tecnológica con sede en Madrid, busca un Developer Jr Full Stack para unirse al equipo. Trabajarás en frontend con REACT y en backend con .NET (Azure Functions, Web API) participando en el ciclo completo del proyecto y en reuniones con clientes. Ofrecen contrato indefinido, modelo híbrido o remoto, presupuesto para material...

About FOSSA At FOSSA, we’re redefining how the world connects. As a leading space engineering and telecommunications company, we specialize in developing and deploying space technologies that enable a new era of communications. With a team of over +50 talented professionals, we’ve already launched +25 satellites and are actively building a...

We are currently partnering with a large scale international technology environment focused on building next generation cloud infrastructure and highly automated platform services across Europe.This opportunity is ideal for engineers passionate about Kubernetes internals, platform engineering, automation and distributed systems, who enjoy owning...

Are you a Java Backend Developer with strong experience in microservices, Spring Boot, Kafka, and enterprise applications? Do you enjoy working with modern technologies, designing scalable solutions, and contributing to complex financial technology projects? At Qaracter, we're looking for a Java Backend Developer to join a technology team working on...

Overview Join Plexus Tech. We are currently looking for a Senior Python Architect/Developer to design and deploy architectures based on AI Agents and serverless solutions on AWS, ensuring the highest quality standards through advanced testing.ResponsibilitiesAI Agent Development: Design and implement multi-agent systems using frameworks such as LangGraph,...

ISANDO TECHNOLOGIES in Barcelona, Spain, is seeking a senior software developer to join our software development team. You will work on full‑stack solutions using Java or Node.js, RESTful services, and cloud platforms, delivering impact to users. The role emphasizes microservices, API design, Agile Scrum, and collaboration with solution architects....

If you dream about being a spy, but you don’t like Martinis, your place is with us! We are expanding our teams in the Space sector to take on Space Traffic Management projects. We’ll get to the point; we’ll tell you what’s not on the web. If you want to know more about us, go to the GMV website. WHAT CHALLENGE WILL YOU BE TAKING ON? GMV is looking...

Soltel Group continúa creciendo. Somos una compañía IT con un sólido proyecto empresarial con más de 800 profesionales especializados en Ingeniería de Sistemas, Ingeniería de Software, Soporte Tecnológico, Asistencia Técnica, I+D+i y Smart Cities. Abrimos una nueva posición para perfiles especializados en Infraestructura, Middleware y Plataformas...