Empleos de junior frontend javascript en Barcelona

Job Summary The Full Stack Engineer Annotator will assess frontend and backend engineering datasets, ensuring AI models correctly interpret full-stack workflows, architecture, and implementation patterns. Job Responsibilities * Annotate full-stack application datasets. * Evaluate frontend and backend integration logic. * Review UI interaction with APIs and...

Overview En este rol trabajarás como Full Stack Developer con enfoque en Java, microservicios y gestión de APIs para sostenar soluciones en banca. Te integrarás en un equipo que impulsa APIs centrales y plataformas de gestión avanzada, colaborando entre backend y frontend. Resolverás desafíos de integración, rendimiento y despliegue de servicios...

Overview As a Senior Java Full Stack Engineer, you will join a greenfield fashion retail project to design, build, and evolve a new digital product from scratch. You will define architecture, implement core capabilities, and deliver an MVP that drives real business value, collaborating with Spanish-speaking stakeholders. You’ll work hands-on across...

One of the companies we partner with at Joppy is looking to hire a **Performance Engineer** passionate about driving the performance of web applications through systematic testing, optimization, and a collaborative approach. **🎯 Responsibilities** - Conduct regular performance, load, and stress tests on web applications to ensure compliance with defined...

**Is this you?** Titan Operating System S.L. (Titan OS), the Barcelona-based technology, entertainment, and advertising company, is looking for you! At TitanOS, we live by three core values: - Make things happen - We take ownership, move fast, and deliver impact - No ego - We collaborate with respect and humility to reach shared goals - Show...

Desde ToBeIT buscamos incorporar un Senior Full Stack Developer para participar en un proyecto internacional en Barcelona, dentro de un entorno tecnológico y de innovación. Buscamos una persona con experiencia sólida tanto en Frontend como Backend, especialmente con Next.js/React y Python/FastAPI, que pueda trabajar de forma autónoma y aportar también...

**Devoteam es una consultora europea líder enfocada en estrategia digital, plataformas tecnológicas, ciberseguridad y transformación empresarial a través de la tecnología.** Centrada en 6 áreas de especialización, abordamos los desafíos estratégicos de nuestros clientes: Digital Business & Products, Data-driven Intelligence, Distributed...

Queremos incorporar en nuestro equipo ubicado en Barberà del Vallès un desarrollador/a Java para soporte en plataforma ecommerce basada en SAP Hybris. Se valorará experiencia en frontend. Funciones a Realizar * Tareas de mejora y refactorización del código para adaptarlo a los estándares actuales de buenas praxis. * Ampliación de funcionalidades...

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,...

mediasmart, part of the Affle group, is looking for a Senior Full Stack Engineer to join our product technology team. You will develop for our main products: the API and the web frontend, serving large agencies and direct customers across the globe. You will own features end-to-end from concept to deployment, collaborate with cross-functional teams, and...

We're looking for a **Senior Software Engineer** with strong frontend expertise to join our Sage HCM engineering team in Barcelona. You'll work across a large-scale, modular enterprise product at an interesting inflection point: our core system is built on Sencha Ext JS (7.5+), and we are actively introducing React for new functional modules and...

To ensure a fair and efficient hiring process, candidates should not contact UN/COMMON employees directly regarding this role. Applications and communication must occur through the official application process. You're a creative technologist who loves bringing beautiful and accessible experiences to life through semantic markup, client-side JavaScript, and...

About Liferay Liferay, Inc. is a uniquely profitable B2B enterprise software company with 1,200+ fiery-eyed employees all across Europe, the Americas, the Middle East, Asia, and Africa. As a renowned provider of enterprise open source technologies, we have been recognized by Gartner for empowering businesses around the world to solve complex digital...

Perfil FullStack (Javascript y NodeJS) En Arelance sabemos que las personas son el activo más importante dentro de una empresa , y por tanto invertimos muchos esfuerzos en buscar a los mejores profesionales para nuestros clientes , y en ofrecer a nuestros candidatos los mejores proyectos En este momento, buscamos incorporar un perfil FullStack para proyecto...

Lever, Inc. is seeking a Software Engineer (Front and Back end) based in Spain. You will contribute across frontend and backend development to build reliable, scalable applications in modern cloud environments. Technologies include Java, JavaScript, Python, React, Angular, Vue.js, and containerization with Kubernetes, Docker, and Containerd. You will deploy...

Senior Fullstack Engineer Who is Parser? Technology alone does not create impact—the right teams do. Founded in 2018, Parser is a boutique technology services and consulting firm helping global organisations solve complex business challenges through digital transformation, product development and AI enablement. We are a fast-growing team of 340+ engineers...

Job Description At THEWHITEAM Consulting, we are looking for an experienced Senior Fullstack Developer to join a dynamic technology team. You will work on the development of robust and scalable applications using Next.js, React and Tailwind CSS on the frontend, together with Python and FastAPI on the backend. You will also contribute to cloud-based solutions...

We’re here to help make tech reliable, affordable, and better than new. We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new.Turns out refurbished tech is way better for the planet than new. From our Customer Care...

👀 Et consideres una persona dinàmica i amb ganes d’aprendre?🤜🤛 T’agrada col·laborar i treballar en equip?💻  Tens passió per la tecnologia?Si tens ganes de posar en pràctica els teus coneixements i participar en un projecte real, no dubtis a inscriure’t, estem cercant una persona com tu!🎯 La nostra propostaSom l'empresa de...

What are we looking for? * 🧠 10+ years in enterprise IT, including 4+ years in presales, solution architecture or technical consulting, acting as a senior technical advisor with a good level of English. * Experience in service sales processes for cloud-native application architectures, plan complex legacy modernization journeys, maintaince services AM,...