Summary: As a Senior Frontend Developer, you will architect user interfaces, ensuring millions of global travelers enjoy a seamless, high-performance booking experience and directly impact conversion and scale. Highlights: 1. Architect and develop scalable, maintainable web interfaces using React. 2. Optimise web performance and SEO for maximum speed and accessibility. 3. Mentor and guide peers to elevate the team’s collective technical bar. **Company Overview** Holafly is a high\-growth scale\-up revolutionising how businesses and travellers connect to the internet abroad. Since 2018, we’ve empowered travellers in over 200 destinations worldwide with secure and reliable eSIM solutions. With a team of 500\+ professionals across multiple countries, we are scaling globally to support travellers with seamless, unlimited data connectivity. We’re not just connecting people—we’re enabling freedom and peace of mind, ensuring our users stay connected from the second they land, wherever their journey takes them. **The Role** As a Senior Frontend Developer, you will be the architect of our user interface, ensuring millions of global travellers enjoy a seamless, high\-performance booking experience. Your expertise directly impacts our conversion and scale by bridging the gap between sophisticated design and technical excellence. **Key Responsibilities** * Architect and develop scalable, maintainable web interfaces using React and modern best practices. * Optimise web performance and SEO to ensure maximum speed and accessibility across all global markets. * Evolve our design systems and component libraries to maintain visual consistency and development efficiency. * Own the software lifecycle, from initial design and API integration to automated testing and deployment. * Mentor and guide peers through code reviews and knowledge sharing to elevate the team’s collective technical bar. * Collaborate with stakeholders to translate complex business requirements into high\-quality technical solutions. Qualifications * 3 to 5\+ years of experience in Frontend Development, with deep mastery of JavaScript, HTML, CSS, and React. * Strong testing mindset, with hands\-on experience in tools like Cypress, Playwright, or Testing Library. * Architecture expertise, including a solid understanding of design patterns and integrating with microservices. * Bilingual proficiency in both English and Spanish (C1 minimum) for global collaboration. * Proven track record of building responsive, SEO\-friendly applications that scale. Bonus Points * Experience with Astro, Tailwind CSS, or modern hydration strategies. * Cloud provider certifications (AWS/GCP/Azure). Benefits \& Perks * 100% Remote\-first culture with the flexibility to work from anywhere. * A focus on work\-life balance and a "human\-first" team environment. * Opportunity to scale a global product in a fast\-growing travel\-tech industry. Apply today and help us transform connectivity for the future of corporate travel and enterprise mobility. Visit us at Holafly.com to explore open positions and learn more about our mission! F0hAB4ba5D