Empleos de junior frontend developer react 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...

Odixcity Consulting is seeking a Full Stack Engineer Annotator to assess frontend and backend datasets, ensuring AI models interpret full-stack workflows accurately. You will work with modern web tech and contribute to dataset labeling and evaluation. Candidates should have 3–5 years of experience as a Full Stack Developer, solid React/Angular/Vue skills,...

Overview As a Senior Software Engineer on the AMO/DevHub domain, you will help shape the Firefox add-ons ecosystem by delivering major features and architectural improvements. You’ll partner with engineers, reviewers, product leads, and the community to modernize the platform, improve reliability, and scale review and moderation. You’ll build observable,...

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...

🧩 Job Opportunity: AI Assisted Developer • Work Model: 100% Remote • Contract Type: Permanent • Working Hours: Full-time 🌐 About the Role We are looking for an experienced AI Assisted Developer to join an innovative project within the pharmaceutical sector, focused on building and integrating AI-powered applications and workflows. The role...

RoleAre you a passionate React Developer looking to make an impact in large-scale digital products? We are looking for a skilled frontend engineer to design and build high-quality, scalable, and maintainable user interfaces within a complex international environment.In this role, you will collaborate closely with UX/UI designers, backend developers, and...

TransPerfect is an established company with a start-up culture seeking creative entrepreneurial people like you to join our team. We’re hiring a Frontend Developer to join our global team to be responsible for the quality, development, and execution of our software products. If you’re ready to join a growing company and make an immediate impact, we want...

Freelance Senior OR Junior Full Stack Developer – React / Next. Js / Node. Js – Barcelona You 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. Responsibilities Develop and maintain complex, data-heavy user interfaces using React and...

Freelance Senior OR Junior Full Stack Developer – React / Next. Js / Node. Js – Barcelona You 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. Responsibilities Develop and maintain complex, data-heavy user interfaces using React and...

Freelance Senior OR Junior Full Stack Developer – React / Next. Js / Node. Js – Barcelona You 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. Responsibilities Develop and maintain complex, data-heavy user interfaces using React and...

Freelance Senior OR Junior Full Stack Developer – React / Next. Js / Node. Js – Barcelona You 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. Responsibilities Develop and maintain complex, data-heavy user interfaces using React and...

We are an international technology services company specialized in:• IT: Banking, Insurance, Retail & E-Commerce, Healthcare• Transport & Supply Chain: Rail, Automotive, Logistics, and Aerospace• Manufacturing: Renewable Energy, Oil & Gas, and Utilities• R&D: Research, innovation, and development of technology solutionsAt K-LAGAN, we focus on...

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...

Are you our next Fullstack Developer? Role: Fullstack Developer (Mid / Senior)Location: Hybrid (Remote / Turin, Italy)The Mission: A Digital World Without Barriers At Accessiway, we aren't just a Saa S company; we are a scale-up growing at supersonic speed with one ambitious goal: to make technology accessible to everyone, no ifs or buts. We believe that...

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,...

At Pluxee, we shape the world of employee benefits and engagement by bringing to life a personalized and sustainable employee experience, at work and beyond. Join Cobee by Pluxee as a Senior Product Engineer and become a key contributor to our mission of revolutionizing employee compensation. You'll own features end-to-end — backend, frontend, and the...

The AI orchestration of your wildest imagination. n8n is the open workflow orchestration platform built for the new era of AI. We give technical teams the freedom of code with the speed of no-code, so they can automate faster, smarter, and without limits. Backed by a fiercely inventive community and 500+ builder-approved integrations, we’re changing the...

🧩 **Job Opportunity: AI Assisted Developer** - **Work Model:** 100% Remote - **Contract Type:** Permanent - **Working Hours:** Full-time 🌐 **About the Role** We are looking for an experienced **AI Assisted Developer** to join an innovative project within the **pharmaceutical sector** , focused on building and integrating **AI-powered...

About the Role At XCEED, we connect people with unforgettable nightlife and live experiences. Our success is built on a foundation of bringing great people—and that’s where you come in. As a Staff Frontend Software Engineer , you will be the technical anchor for our frontend organization. This is not just a role for an expert coder; it is a role for...

Altia is seeking a skilled React Developer to design and build high-quality, scalable frontend interfaces for large-scale digital products. You will collaborate with UX/UI designers, backend developers, and product teams to translate business needs into efficient frontend solutions.You will join a strategic, international project with 100% remote work,...