React Tech Lead

React Tech LeadLocation : Barcelona, Spain — Hybrid (3 days onsite, 2 days remote)We are : Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.With the right people and the right ideas, there’s no limit to what we can achieve.Are you a fit?Sounds awesome, right? Now, let’s make sure you’re a good fit for the role : Key Responsibilities- Lead the design, architecture, and implementation of the frontend application.- Write clean, maintainable, and well-tested code using modern React (including React 18 features).- Collaborate closely with backend engineers, designers, and product managers to deliver a seamless and high-quality user experience.- Establish and enforce frontend best practices related to code style, component composition, accessibility, state management, documentation, and tooling.- Lead the creation and maintenance of scalable UI systems, including component libraries and design systems.- Provide technical mentorship to frontend team members, supporting growth and ensuring alignment with architectural decisions.- Take ownership of the entire frontend development lifecycle, from planning to deployment.- Partner with other engineering teams to integrate APIs and ensure optimal application performance.Must-have Skills- 7+ years of professional experience in frontend engineering with a strong specialization in React.- Expert-level knowledge of ReactJS, including React Hooks and modern React 18 capabilities.- Deep expertise in HTML (semantic markup, accessibility standards).- Strong expertise in CSS, including vanilla CSS and scalable CSS methodologies.- Hands-on experience with frontend tooling : Webpack, Babel, NPM / Yarn.- Strong experience with Git and GitHub-based workflows.- Experience working with CSS-in-JS libraries.- Proven experience building and maintaining component libraries or design systems.- Familiarity with Storybook for UI documentation and component-driven development.- Experience with or strong understanding of microfrontend architectures.- Bachelor’s degree in Computer Science, Software Engineering, or a related field.- Advanced English communication skills.Nice-to-have- AI Tooling Proficiency : Leverage AI tools to optimize day-to-day work (e.G., code generation, analysis, documentation, research). Recommend effective use of AI and identify automation opportunities.- Experience with performance optimization for large-scale frontend applications.- Familiarity with accessibility automation tools and frontend testing frameworks.- Understanding of cloud platforms (AWS, GCP, Azure).- Experience contributing to open-source UI tools or libraries.What we offer- A High-Impact Environment- Commitment to Professional Development- Flexible and Collaborative Culture- Global Opportunities- Vibrant Community- Total RewardsSpecific benefits are determined by employment type and location.Find out more about our culture here.