Hostinger is seeking a Senior Frontend Developer to join its engineering team and significantly impact the user experience of their email hosting products. The role involves developing and evolving the Webmail and hPanel Email interfaces, working end-to-end on complex features from initial discussions through architecture, coding, testing, and release. The developer will collaborate closely with backend engineers, designers, and product managers, primarily using Vue.js 3 and TypeScript, building scalable single-page applications with tools like the Composition API, Pinia, and TanStack Query. Responsibilities include writing meaningful unit tests with Vitest and Testing Library, optimizing UI performance for millions of users across various devices and networks, improving developer experience by influencing tooling and internal libraries, contributing to company-wide frontend guild initiatives, and maintaining security best practices to protect sensitive email data. The role values experience with modern frontend frameworks such as React or Vue, solid SPA architecture knowledge, proficiency with TypeScript, state management, REST API integration, unit testing, and strong communication skills. Nice-to-have skills include experience with Sentry, ESLint, and modern frontend tooling like Vite, as well as an interest in AI-assisted development workflows. Hostinger offers a dynamic remote work culture with a focus on growth, wellness, flexibility, and team celebrations. Compensation is competitive and based on experience, with ample opportunities for personal and professional development.