Empleos de javascript react en Barcelona

Overview Fullstack React_NodejsReferencia: #101224Localización: EspañaEstamos buscando un desarrollador Fullstack talentoso y motivado con experiencia en React y Node.js (versión 18) con más de 5 años de experiencia, con dominio de APIS Rest para trabajar 100% en remoto, para unirse a nuestro equipo dinámico.El candidato ideal tendrá una sólida...

Overview As a Senior Engineer on the Prism team, you will shape scalable security data platforms that form a trustworthy picture of users, hosts, and services. You’ll partner across product, design and engineering to transform hard problems into reliable systems used by security teams. The role blends backend data modeling, APIs, and performance-focused...

Overview In this role you will build and own features across the client, server, service, and database layers for Deel’s web platform. You’ll work in a cross-functional, remote-first team to ship robust features, APIs, and scalable data models that power global payroll and HR workflows. You’ll impact product quality, developer experience, and customer...

# **2 Controls Software Engineers** Reference 2026-FIX-30 & 2026-FIX-32 Deadline 21/10/2026 Division Computing #### **Institution** ALBA is the Spanish synchrotron light source, a large research infrastructure operating thirteen beamlines, complementary facilities, and an Electron Microscopy Center, this last in partnership with other institutions....

Overview As a Software Engineer on the self-service cloud growth team, you will contribute to the onboarding experience for self-service customers and trial users, shaping how users adopt Elastic Cloud. You will build scalable front- and back-end features that streamline onboarding and trial workflows, collaborating with product and design to deliver a...

Overview En este rol, desarrollarás soluciones fullstack en un entorno SaaS para farmacias, con foco en automatización y venta online. Trabajarás junto al CEO para hacer crecer el producto y, a futuro, liderar el equipo de desarrollo como CTO. Deberás resolver retos en la nube y en integración de dispositivos, aportando impacto directo en eficiencia y...

Overview As Engineering Lead with a frontend focus, you steer a team of engineers to shape Fever’s frontend platforms and web experiences. You’ll stay hands-on, influence architecture, and drive scalable, high-performance solutions that impact millions of users. Collaborating with Product and Design, you translate business needs into technical directions...

About usConstructor is the next-generation platform for search and discovery in e-commerce, built to explicitly optimize for metrics like revenue, conversion rate, and profit. Our search engine is entirely invented in-house utilizing transformers and generative LLMs, and we use its core and personalization capabilities to power everything from search itself...

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...

Overview In this role you build end-to-end TypeScript features across the stack, shipping high-quality, secure product improvements that users feel in their workflows. You own a product area from discovery to delivery and work closely with product to translate customer problems into measurable outcomes. You’ll iterate rapidly, balancing UX, performance,...

Job descriptionWho are we, and why are we hiring?We're based on over 15 years of success, producing world-class video content and building, developing, and managing a number of high-traffic websites. Our award-winning content and websites are created exclusively by us and directly for the use of millions of users worldwide. At Kodify, we're not just pushing...

Job descriptionWho are we, and why are we hiring?We're based on over 15 years of success, producing world-class video content and building, developing, and managing a number of high-traffic websites. Our award-winning content and websites are created exclusively by us and directly for the use of millions of users worldwide. At Kodify, we're not just pushing...

Nuestro cliente: Barcelona | Especialistas en desarrollo de soluciones TI Nuestro cliente es una empresa especializada en consultoría, desarrollo e implementación de soluciones basadas en Sistemas de Información Geográfica (GIS). Con más de dos décadas de experiencia, colabora con entidades públicas y privadas, ofreciendo servicios tecnológicos...

Description & Requirements The Senior AI Architect will serve as the Firm’s senior technical authority for the design, delivery, and operational readiness of enterprise-grade AI and Copilot ecosystems. The role-holder will bridge the gap between ambitious business concepts and secure, production-ready deployments within a highly regulated legal...

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...

Nuestro cliente: Barcelona | Especialistas en desarrollo de soluciones TI Nuestro cliente es una empresa especializada en consultoría, desarrollo e implementación de soluciones basadas en Sistemas de Información Geográfica (GIS). Con más de dos décadas de experiencia, colabora con entidades públicas y privadas, ofreciendo servicios tecnológicos...

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 automation platform is seeking a Fullstack JavaScript/TypeScript Engineer in Spain. The role involves product ownership, where you will be responsible for building and shipping end-to-end features that enhance customer workflows. You will collaborate closely with product teams, utilize modern web stacks such as Node.js, Vue, and React, and ensure...

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...

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...