Empleos de senior full-stack java developer remote en Madrid

Lever, Inc. is seeking a Product Engineer based in Spain to join a fast-growing AI environment. You’ll own features from idea to release, shaping frontend with Next.js and backend with Django and PostgreSQL, and work directly with the founder to bring ideas into production. This role offers high autonomy, minimal meetings, and the chance to influence 3D...

Lever, Inc. is partnered with a company seeking a Senior Full Stack Engineer based in Spain. You will build scalable applications using .NET/C#, React/Redux, and SQL databases, with GCP and CI/CD practices. The role blends hands-on coding with architectural input and mentoring, in a remote-first environment. You will collaborate with product and design teams...

Leadtech seeks a Senior Full Stack Product Engineer to own end-to-end features for our top web products. You will shape features with the Product team, translate business goals into technical decisions, and uphold high standards for quality and performance. Expect to work across frontend and backend using React, Next.js, Node.js, TypeScript, and JavaScript,...

A leading technology firm in Spain seeks a Full-Stack Engineer to shape key tools in contextual advertising. The role involves developing both client-side features and scalable backend APIs, demanding proficiency in modern front-end languages and software engineering principles. Candidates should have 5+ years of experience and demonstrate adaptability in a...

Why Ads Media, consultora de marketing digital, busca un Senior Full Stack Developer / Tech Lead con al menos 4 años de experiencia para liderar técnicamente el desarrollo de nuestra tecnología interna en Madrid. Integrarás IA en herramientas y guiarás un equipo de 3 desarrolladores junior, definiendo arquitectura y buenas prácticas. Se valorará...

NineTwoThree AI Studio is a remote-first product design, engineering, and marketing studio delivering AI-powered web and mobile apps to global brands. We seek senior engineers who lead projects, architect scalable AI solutions, and mentor teams to deliver high-quality results. Join a fast-moving, high-talent team with strong leadership, clear processes, and...

Techmunity is hiring Senior Full Stack Engineers to build AI-powered agents that can resolve customer service problems by interacting with brand data. You will design and implement backend and frontend systems, connect data sources, and scale infrastructure to support real conversations. You will work on cross-functional features across LLM/agent systems,...

Trbl Services en Madrid busca un desarrollador full-stack con más de 5 años de experiencia para diseñar, desarrollar y mantener aplicaciones web modernas. Trabajarás con TypeScript, Node.js, NestJS y Angular, creando interfaces dinámicas con Angular e Ionic, y construyendo APIs REST/GraphQL. Participarás en un entorno ágil, colaborando con UX, QA y...

Bark is seeking a Senior Full Stack Engineer to join our Acquisition squad. You’ll work on Python backend and React/TypeScript frontend, shaping marketing tech that drives customer growth in a fully remote role based in Spain. You’ll collaborate with marketing, product and design, build AI-powered tooling, implement guardrails for live AI outputs, and...

A leading software company in Madrid is seeking a Senior/Lead AI Software Engineer to architect and scale AI-driven products. The ideal candidate will have over 5 years of full-stack development experience and 2+ years in AI/ML engineering, with expertise in Rust or Golang. Responsibilities include developing AI features, integrating LLMs into...

TalentLyft is seeking a Senior FullStack Developer ready to step into a Team Lead role for a complex AI‑powered platform handling users, roles, and permissions. You will work remotely across Europe on a 6–12+ month engagement, collaborating with a PM, designer, and engineers to build a compliant, security‑driven system. You will design scalable...

Una empresa de tecnología en crecimiento busca un/a Programador/a Junior en Valencia. La persona seleccionada trabajará en proyectos innovadores y tendrá la oportunidad de desarrollarse profesionalmente en un entorno dinámico. Se requiere formación universitaria en Ingeniería Informática o Telecomunicaciones, así como experiencia en desarrollo back...

This role aligns to industry-level titles such as Senior Software Developer. At Pearson, we're transforming the way millions of learners develop English language skills around the world. As part of our English Language Learning division, you'll join an international AI organization working on one of our most strategic digital products. You'll help design and...

We are knowmad mood! Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología. Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de...

We are knowmad mood!Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología.Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de...

Toggl is seeking a Senior Full Stack Engineer to join a Tribe responsible for Toggl 2.0, a unified planning, time tracking, and time intelligence product. You’ll own cross‑functional features from API to UI, working with React/TypeScript on the frontend and Golang on the backend, with PostgreSQL as the data layer.You’ll collaborate with product...

Freelance Senior OR Junior Full Stack Developer – React / Next.js / Node.js – BarcelonaYou will collaborate closely with the Tech Lead, Product Owner, UX Designer, and Data team to design, develop, and deliver high-quality features within an agile environment. ResponsibilitiesDevelop and maintain complex, data-heavy user interfaces usingReact and...

¿Te interesaría seguir desarrollándote comoSenior Backend Developer especializado/a en Node.Js, participando en un proyecto tecnológico estratégico y de larga duración?EnOxigent Technologiesbuscamos un/a **Senior Backend Developer Node.Js (+ Java)**para incorporarse a un equipo consolidado que trabaja en el desarrollo y evolución de una plataforma...

We are knowmad mood! Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología. Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de...

We are knowmad mood!Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología.Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de...