Top Front End Developer Jobs in Leon

The Software Engineer will develop and maintain UI components for Dropbox's design system, build AI-powered tooling, and integrate AI into workflows to enhance product development.

Design, build, test, and maintain responsive single-page applications using Angular 16+, TypeScript, HTML/CSS and SCSS. Create reusable components, integrate with RESTful APIs, optimize performance, implement responsive and accessible UIs, write unit tests, participate in code reviews, support CI/CD and production observability, and collaborate in Agile teams with product, UX, backend, and DevOps.

Design, develop, and maintain high-quality React applications, lead technical decisions, mentor engineers, and optimize performance in a fast-paced environment.

Build and launch conversion-focused landing pages, advertorials, and funnels for DTC brands. Run rapid experiments and A/B tests, implement analytics/tracking (GA4, GTM, Hotjar), optimize mobile performance and page speed, collaborate with paid media and creative teams, assist with direct-response copy, and create scalable processes for faster launches.

Design, develop, and maintain large-scale Angular applications using NGRX and RxJS. Implement best practices for performance, responsiveness, and cross-browser support. Integrate with backend RESTful APIs, participate in code reviews, mentor junior developers, and write clean, testable code.

Design, build, and maintain consumer-facing features across web (React) and mobile (React Native). Own product lifecycle from discovery through release, monitoring, experimentation, and iteration. Drive A/B testing and feature-flag strategies, make architectural decisions, ensure accessibility/performance/testability, mentor engineers, and collaborate with Product, Design, Data, and Platform teams.

Seeking a passionate UI Developer to build user interfaces using React, maintain dashboards, and collaborate with designers and product managers.

The Senior Front-End Developer will lead technical projects, develop robust front-end applications using React and Angular, and collaborate with teams to ensure integration and quality standards.

Design, build, and maintain modern frontend applications using React and Angular; implement real-time, interactive UIs; create reusable components and data visualizations; contribute to design systems and frontend architecture; integrate with backend and AI teams; ensure observability, testing, performance, and containerized workflows; participate in architectural discussions and standardize project scaffolding.

The Frontend Developer will replace components, optimize UI workflows, collaborate with backend teams, and improve development processes.

Seeking a Front-End Engineer to develop React applications, focusing on UI design, performance optimization, and collaboration with teams for high-quality product delivery.

You will drive the product's frontend look and feel, build UIs for complex data, ensure consistent designs, and enhance development velocity. This role requires strong React/TypeScript skills, a builder's mindset, and a focus on performance and design sensibility.

Develop and maintain Ubegos frontend products: mobile/web quest experiences, user and creator dashboards, admin panel, marketing features, and third-party integrations. Work in one-week Scrum sprints, perform code reviews, contribute to software architecture, and use modern frontend frameworks, relational databases, and AI-assisted coding tools.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.