Lead Frontend Engineer

Cozycozy is the only platform that gives you real‑time access to all available holiday accommodations. Whether you’re searching for a hotel, apartment, hostel, villa, or even a treehouse, our service features over 20 million listings from over 100 booking sites. You will find popular options like Airbnb, Booking.com, Abritel/VRBO and hotels.com, as well as plenty of specialised marketplaces to explore, such as Agriturismo, Gîtes de France, Onefinestay, Belvilla, Sonder, Travelski, and many others. Experiencing rapid growth, we are now present in over 50 countries in 20 languages, with offices in Paris and Budapest. About The Role At Cozycozy, we’re building the world’s best accommodation metasearch platform making travel simple, transparent, and inspiring. We already process millions of searches, and we’re growing fast. To keep up, we’re looking for a Lead Frontend Engineer to shape the next generation of our web platform to make it faster, iterative, with an eye for user experience & design. To own the frontend architecture and help us deliver new, high‑impact features that make travel discovery effortless. 👉 The position is a hybrid role based in our office in central Paris Your mission You’ll join our engineering team and own the frontend architecture to lead the evolution of our UI. Your work will define how millions of travelers experience Cozycozy, from the very first search to booking the perfect stay. Responsibilities Own the frontend architecture and keep our Angular platform stable, modular, and high‑performing. Lead the development of new user‑facing features, some of which will be built in React (starting from greenfield projects driven by our product lab). Collaborate with product and design to implement clean, accessible, and responsive UIs. Experiment quickly to ship and test new interfaces, personalization features, and search experiences. Have the opportunity to mentor and guide, setting coding standards and best practices. Raise the bar for performance and UX, making sure every millisecond counts in search. Lead frontend initiatives, shaping architecture and high‑impact features across projects. This is a role for someone who thrives on ownership, wants to shape the future of Cozycozy’s UI, and loves balancing stability with innovation. About you You’re a builder who cares as much about how the platform experience is as much as how it’s working and functioning. You enjoy working close to product and design, and you enjoy mentoring others while staying hands‑on. Key qualifications 6+ years of frontend or full‑stack experience (frontend‑focused), with 2+ years leading projects or mentoring. Strong TypeScript skills and experience with Angular & RxJS. A track record building scalable, performant web apps with clean architecture. Experience integrating REST/gRPC APIs and handling complex state management. Familiarity with data layers & GTM for analytics/marketing. Solid understanding of HTML, CSS, DOM APIs, and responsive web design. Motivation to be in an international (English‑speaking) work environment. A product mindset as you think about the traveler experience, not just the code. It’s a bonus if you Have worked with React and are excited to help us build new interfaces with it. Have experience with high‑traffic, data‑rich apps (search, e‑commerce, marketplaces). Why join Cozycozy? 🚀 You’ll operate in a key role in the development of a fast‑growing travel‑tech startup. 🌍 You will work closely with founders and fellow engineers in impact‑led small teams. 💡We encourage initiative, creativity, and ownership. The systems you build will power millions of searches used by real travelers. ☕ Enjoy our office in Paris with unlimited coffee, tea, snacks, and drinks. 💶 Competitive salary, stock options, Alan health insurance, and Swile card. Our hiring process HR interview with Mia, our Head of Talent. 1:1 interview with the Hiring Manager (onsite). Technical case to present your recommendations to the CEO and our stakeholders. Meet the team onsite. What’s Next? Once we receive your application, we will thoroughly review your CV and cover letter and will return back to you with an update as soon as possible. We invite you to get to know more about us by visiting www.cozycozy.com and follow us on LinkedIn, Instagram, TikTok and Facebook. Boulogne‑Billancourt, Île‑de‑France, France #J-18808-Ljbffr