Empleos de react en Barcelona

Q-tech is seeking a seasoned software engineer to help build high‑quality products that improve lives, including pets. The role focuses on backend with Python, frontend with ReactJS/React Native, and strong UX and testing practices.You’ll work in a hybrid model (office Mondays and Thursdays) with a values‑driven team that mentors others and grows...

Useprosper in Barcelona is seeking a Software Engineer to develop and scale their AI Phone Agent platform for healthcare. The role involves working on low-latency speech systems and requires experience in building end-to-end products.Candidates should possess strong knowledge of FastAPI, PostgreSQL, and React. The position offers the opportunity to impact...

A leading software company in Barcelona is looking for a Senior Software Engineer to contribute to the development of internal IT tools. This position requires strong expertise in Ruby on Rails for backend and solid skills in React, JavaScript, or TypeScript for frontend development. Candidates should possess a user-centric mindset and a willingness to...

Expert Full Stack Developer at Allianz Technology in Barcelona, on-site position driving design, development, and maintenance of enterprise web applications. You will integrate front-end and back-end components, optimize performance, and apply security best practices, with AI-assisted coding daily.The role requires 7 years in full stack, proficiency in...

Preply Inc. in Barcelona is seeking a Senior II Full-Stack Engineer (back-end heavy) to join a cross-functional team.You’ll design and evolve scalable back-end systems with Python/Django while contributing to frontend in React/TypeScript, balancing immediate product needs with long-term sustainability. The role is hybrid, with about 85% back-end focus and...

BizAway, located in Barcelona, is seeking an enthusiastic Application Engineer (Full-Stack Mobile) to enhance mobile experiences integrated with a robust backend. The ideal candidate shows strong UX passion, problem-solving skills, and experience with React Native and A/B testing. The position offers a permanent contract, hybrid working model, and attractive...

Q-tech is seeking a seasoned software engineer to help build high‑quality products that improve lives, including pets. The role focuses on backend with Python, frontend with ReactJS/React Native, and strong UX and testing practices.You’ll work in a hybrid model (office Mondays and Thursdays) with a values‑driven team that mentors others and grows...

Overview In this role you will help shape the modernization of Cint’s Supply domain, migrating from a GO-heavy baseline toward a unified Java/Spring stack. You’ll design scalable patterns to move away from monoliths with zero downtime and collaborate with product teams to balance technical debt with new value. You will work across timezones, improve...

We are looking for a talented Full Stack Developer to join our Digital Innovation Hub in Barcelona.As part of the hub, you will help drive strategic digital initiatives across areas such as eCommerce, product configuration, analytics, and digital sales innovation. Led by experienced startup professionals, the hub combines the agility and entrepreneurial...

Overview As a Fullstack Engineer in the Platform team, you will own shared infrastructure, shape the backend orchestration service, and help multiple teams move faster with quality and reliability. You’ll bridge product teams as a platform proxy, coordinating cross-team decisions and ensuring scalable, well-documented services. You will build and maintain...

RequirementsPassionate and detail-oriented Software Engineer ready to use your technical skills to build customer-facing products that genuinely improve the lives of people and their pets You're eager to grow your craft and contribute to a safe, supportive community Professional Experience: 5+ years of experience as a professional software developer Product...

We are looking for a talented Full Stack Developer to join our Digital Innovation Hub in Barcelona.As part of the hub, you will help drive strategic digital initiatives across areas such as eCommerce, product configuration, analytics, and digital sales innovation. Led by experienced startup professionals, the hub combines the agility and entrepreneurial...

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...

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 SoftonicAt Softonic, people come first. We’re a multicultural team passionate about building digital experiences used by millions of users worldwide. Guided by a fail fast, learn faster mindset, we encourage curiosity, experimentation, and continuous improvement, to make a real impact.Our culture is shaped by four principles:Step up: Take ownership...

About NeuralTrust We're a Barcelona-based startup building the future of AI and Agents security . Our SaaS platform enables large organizations to integrate generative AI into their products and services in a secure, reliable, and measurable way. Backed by leading European investors and collaborating with top Spanish universities, NeuralTrust operates at the...

ð At K-LAGAN, we’re looking for talented people to keep growing with us!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,...

ð At K-LAGAN, we’re looking for talented people to keep growing with us!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,...

As a Tech Lead you will play a key role in shaping how we build and scale our product. You will work closely with a high impact engineering team, combining hands-on development with tech leadership, architectural decisions and mentoring. This is a hands-on role: you will write code, set the technical direction for your area. Your responsibilities: Guide and...

Factorial is seeking a Product Engineer to advance the AI-Driven Operations domain. Based in Barcelona, you will design systems, craft high-level prompts for multi-agent orchestration, and ensure outputs are secure and scalable. You’ll collaborate with a team building agentic features on top of Ruby on Rails and React, shipping impactful AI-enabled...