Senior Front-End Engineer

We’re Ace & Tate – and yes, we make glasses. But more than that, we make working here worth your while. We’re looking for a Senior Front-End Engineer (12-month interim) at our Amsterdam HQ, 32-40 hours. What our Senior Front-End Engineers do - Own the digital storefront spend most of your time hands-on in the codebase, driving the technical decisions that keep our customer experience and internal tools fast, reliable, and sharp - Ship from end to end lead features and initiatives all the way from scoping and architectural design through to deployment in production - Elevate code quality review pull requests and provide constructive, actionable feedback that helps other engineers grow and level up - Champion performance & stability continuously monitor, profile, and improve site performance, reliability, and technical health - Prioritise security & privacy integrate best-in-class security practices into every release to protect customer and company data - Bridge tech and product collaborate closely with cross-functional stakeholders across the business to translate requirements into pragmatic, scalable solutions - Share knowledge & mentor foster a strong engineering culture through knowledge sharing, documentation, and technical guidanceYou have - Senior-level expertise proven experience building, architecting, and maintaining large-scale, high-traffic web applications in production - Tech stack fluency hands-on experience with modern front-end technologies, ideally including TypeScript, Next.js, Cloudflare, Vercel, MongoDB, and PayloadCMS (or comparable headless setups) - Sound technical judgment a strong track record of architectural decision-making and the ability to articulate trade-offs clearly - Pragmatic problem solving strong engineering foundations and the ability to balance clean code with commercial reality - System ownership comfort taking full accountability for system reliability, performance, and uptime - Collaborative communication clear, candid communication skills with the ability to partner effectively with both engineers and non-technical teammates - Languages fluency in English, both spoken and writtenWhat we offer - Competitive salary, €70-85k gross per year (incl. holiday allowance) - Flexible hybrid work environment - Time off that counts 25 holidays per year (full-time) plus tenure-based extra days (2 after 1 year, 3 after 2 years) - Company pension plan - Travel support reimbursement if living more than 10 km from HQ - Wellbeing support collaboration with ClassPass and unlimited mental health support via OpenUp - Optical perks continuous free updates of your eyewear collection plus great discounts - Benefits at Work access to a discount platform for products and services. - Healthy lunches & snacks daily nutritious lunch and healthy snacks - A culture to love participation in events planned by our CultureClub