UI / Front-End Developer

About Us We are FLiiP, a fast-growing SaaS startup transforming the management of fitness centers and multi-site operators. Our all-in-one platform helps gyms and studios centralize their operations, automate their communications, and maximize member retention. Backed by over CAD $4M in seed funding and participants in the Google for Startups Accelerator, we are experiencing sustained growth across North America. With an AI-first vision and a culture of continuous experimentation, we are a team that truly builds. The Role As part of our platform modernization, we are recruiting a UI/Front-End Developer to build and implement our design system. This is a foundational role: you will be responsible for bridging the gap between design vision and technical implementation, working in close collaboration with our UI/UX designer. The profile we are looking for is a hybrid one: someone who starts from design (Figma, UI), masters CSS, and goes all the way to integration in React. Key Responsibilities Design System Implementation Build and maintain a React component library using Storybook, based on our Figma designs. Create reusable components following atomic design principles. Establish design tokens, usage patterns, and associated documentation. Integration & CSS Deliver pixel-perfect, responsive, cross-browser compatible interfaces (web and React Native mobile). Write clean and maintainable CSS, taking into account our existing codebase constraints. Legacy Code Modernization Progressively refactor HTML/CSS/jQuery/JavaScript code toward modern standards. Maintain backward compatibility while improving code quality and consistency. Collaboration & Tools Work closely with our designer to validate the technical feasibility of designs. Use AI tools (Copilot, Cursor, etc.) to accelerate repetitive tasks. Required Skills 5+ years of experience in front-end development. Advanced CSS skills: responsive, flexbox, grid, animations, cross-browser compatibility. Solid experience with vanilla JavaScript and jQuery (reading and modifying existing code). Good command of React: functional components, state management, lifecycle. Experience with Figma and translating designs into code. Comfortable in a startup environment, with legacy code and evolving priorities. Good communication skills in French and/or English. Nice to Have Experience with Storybook or equivalent. Familiarity with design systems and atomic design methodology. Knowledge of CSS-in-JS solutions (styled-components, emotion). Use of AI tools in the development workflow. Bilingual French/English. Ability to present your design work to multiple stakeholders. Competitive compensation based on profile and experience. 50% coverage of group health insurance premiums. Health and wellness support: gym allowance, fitness classes, team sports, and $900/year in telecommunications allowance. A 100% remote position in Canada, with only 1 day/month required at our Brossard office. The opportunity to directly contribute to the growth of an AI-driven company in a large and underserved market. Close collaboration with our leadership team in a culture built on fitness, innovation, and speed. We are looking for someone who loves clean code as much as the interface it produces, and who wants to leave a lasting mark on a fast-growing product.