Senior Front-end Developer en Sanctuary Computer

In this role, you’ll work on a variety of client projects to find cost-effective, high-quality, pragmatic solutions to complex problems. Responsibilities will include:

• Collaborating with Technical Lead to meet clients' development needs
• Building and maintaining high-performance web applications with modern frontend frameworks and tools
• Implementing responsive, accessible, and pixel-perfect user interfaces based on design specifications
• Integrating frontend applications with headless CMS platforms, APIs, and third-party services
• Optimizing application performance, including bundle size, load times, and runtime efficiency
• Architecting scalable component libraries and design systems for consistency across projects
• Writing clear documentation for code maintenance and usage
• Participating in project team meetings, including Sprint Planning, daily standups, and retrospectives
• Participating in code reviews, providing constructive feedback to teammates and ensuring adherence to best practice

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• 8+ years writing highly performant frontend code, an obsession for 95+ Lighthouse scores
• Expert level experience with Typescript, and one of Next.js, Nuxt, Svelte, Vue
• Extensive experience with headless CMS like Sanity, Contentful, Prismic or more
• Fluency in industry standard PaaS like Vercel, Netlify, Firebase, etc
• Fluency in eCommerce technologies like Shopify (headless & liquid), Stripe, Swell and others
• Experience building accessible, responsive interfaces with attention to performance optimization and SEO best practices
• Strong understanding of modern CSS methodologies (Tailwind, CSS Modules, etc) and animation libraries
• Experience with state management solutions (Redux, Zustand, Pinia) and API integration patterns
• Proficiency with testing frameworks (Jest, Playwright, Cypress) and commitment to writing maintainable, well-documented code
• Experience with design systems and component libraries, working closely with designers to ensure pixel-perfect implementations
• Real-time & performance optimization: experience with WebSockets for live data updates, caching strategies (Redis, CDN-level caching), CDN configuration and optimization (Cloudflare, Fastly), and image optimization techniques including proxies and delivery networks

• WebGL & Canvas expertise: experience building interactive graphics, animations, and visualizations using WebGL, Three.js, or native Canvas API
• Data visualization: creating compelling, interactive data visualizations with libraries like Mapbox, D3.js, Chart.js, or similar tools
• Full-stack development experience: comfortable working across the entire stack, from frontend to backend and database layers
• PostgreSQL expertise: strong experience with database design, query optimization, and managing complex relational data structures
• GraphQL & API design: building and maintaining GraphQL or REST APIs with a focus on performance and developer experience
• Real-time technologies: experience with WebSockets, Server-Sent Events, or similar technologies for building live, interactive features
• Authentication & security: implementing secure authentication flows (OAuth, JWT) and following security best practices
• Client-facing experience: working directly with customers to gather requirements and provide technical solutions
• Product management experience: defining product roadmaps and collaborating closely with stakeholders
• Engineering management experience: leading teams, setting technical direction, and mentoring developers