Staff UX|UI Engineer

Overview Join to apply for the Staff UX/UI Engineer role at Félix . At Félix, we're building the financial ecosystem for Latin immigrants in the U.S., starting with a revolution in remittances. Our core product is an AI-powered chatbot powered by WhatsApp, allowing our users to send money home as easily as sending a text message. We leverage cutting-edge technology like AI, blockchain, and stablecoins to make cross-border payments faster, more affordable, and more accessible than ever before. We are a hyper-growth Series B company, backed by over $100 million in funding from top-tier global investors. Félix was selected as an “Endeavour Entrepreneur” and recipient of the CrossTech Fintech Startups Award. We are a team of high-performers who are obsessed with empowering our customers and delivering value with urgency and focus. Joining Félix means you will be part of a team building a legacy and a company that will outlive us all. This is a rare opportunity to apply your skills to a deeply meaningful mission—serving a community that has been underserved for too long. We strive for radical transparency, constructive feedback, and a culture of ownership, experimentation, and excellence. Responsibilities Design and implement a modular UX/UI framework that allows multiple teams to contribute features without breaking interoperability. Establish design system guidelines (components, patterns, accessibility standards) to ensure consistency and scalability across teams. Collaborate with cross-functional teams (product, engineering, QA) to translate requirements into design and engineering deliverables. Build prototypes, mockups, and production-ready components that balance usability, performance, and maintainability. Ensure collaboration-friendly architecture, minimizing merge conflicts, dependency issues, and UI regressions. Conduct usability testing and user research to validate design decisions and improve user experience. Champion best practices in accessibility, responsive design, and internationalization. Mentor junior designers and engineers, promoting craftsmanship and design thinking. Requirements 10+ years of experience as a UX/UI Engineer, Frontend Engineer, or similar role. Strong proficiency in modern frontend frameworks (React, Angular, Vue) and component-driven development. Expertise in design systems (e.g., Material UI, custom component libraries) and modular architectures. Solid understanding of collaboration workflows in large engineering organizations (Git, CI/CD, versioning strategies). Strong background in user experience principles, visual design, and interaction design. Experience preventing and resolving integration issues across multiple teams and modules. Familiarity with testing frameworks (Jest, Cypress, Playwright) to ensure UI stability. Excellent problem-solving skills, with a balance of creativity and engineering rigor. Strong communication and collaboration skills to align design and technical decisions across diverse stakeholders. Equivalent competencies in any of the above will be considered. Nice to Have Experience with micro-frontend architectures. Knowledge of design tokens, theming, and multi-brand support. Background in fintech or other high-availability systems. Contributions to open-source design systems or UI frameworks. What We Offer Competitive salary Initial stock options grant Annual performance bonus Health, dental, and vision plans Remote work environment, with offices in Miami and Mexico City and a hybrid option Continuous learning opportunities Unlimited PTO Paid parental leave Growth opportunities in a dynamic entrepreneurial environment Equal Opportunity Employer At Félix, we are committed to providing equal employment opportunities to all qualified employees and applicants without regard to race, religion, nationality, sex, sexual orientation, gender identity, age, or disability. This policy applies to all terms and conditions of employment, including recruitment, hiring, placement, promotion, training, compensation, benefits, and termination. Privacy Policy . Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology #J-18808-Ljbffr