Frontend Developer

Location: Remote, Barcelona region preferred (not required), periodic in-person meetings possible

Type: Project-based, part-time (contract)

Duration: Estimated 3–6 months (starting soon)

We’re building the next version of food4rhino.com, the leading platform for Rhino and Grasshopper plugins and tools. This version will use a decoupled architecture with Drupal 11 as the CMS and a custom-built front end using modern JavaScript frameworks.

The back end is under active development with a working prototype, and visual designs (delta documents, component notes) are in place. We’re seeking an experienced front-end developer to bring this modern interface to life.

• Develop a responsive, performant front end based on design specs and API data
• Translate visual change documents into reusable components and layout
• Integrate with Drupal 11's REST API endpoints for content, search, and user data
• Implement client-side caching strategies for performance and responsiveness
• Ensure high code quality and maintainability through clear structure and documentation
• Collaborate closely with internal developers and stakeholders to clarify requirements and unblock progress

• 3+ years of experience developing SPAs with JavaScript
• Proficiency in: HTML5, CSS3, JavaScript
• Proficiency in: Vue 3 (preferred), or React/Next.js if highly experienced
• Proficiency in: Front-end build tools (Webpack, Vite, npm/yarn
• Deep understanding of: Building responsive, mobile-friendly UIs
• Deep understanding of: REST API integration and dynamic data rendering, especially with JSON:API specification (used by Drupal 8–11)
• Deep understanding of: Client-side caching and data-fetching strategies, Handling cache-control headers, ETag validation, SWR, Vue Query, or custom solutions, Local storage, IndexedDB, or service workers
• Git-based workflows and collaborative development (e.g., GitHub, GitLab)
• Building and structuring front ends that support internationalization (i18n) and localized UI elements

• Experience working with Drupal 10 or 11, or understanding of Drupal entity structure
• Familiarity with Nuxt 3 or Next.js
• Awareness of server-side and edge caching, CDN behavior (Cloudflare)
• PHP knowledge or comfort with reading Drupal’s output templates
• Understanding of web accessibility (WCAG), SEO best practices, and performance budgets
• Experience with cloud platforms, preferably AWS, for implementation or testing.
• Familiarity with i18n frameworks (e.g., vue-i18n, react-i18next) for translation, fallback, and locale switching

• Annotated design documents ("delta docs") and wireframe-style change logs
• A working Drupal prototype with structured content
• API documentation and/or mock data
• Git-based repository and CI/CD environment
• Active collaboration and support from our internal product and engineering team
• Bilingual team: we work in Spanish and English, and much of the internal communication happens in Spanish. Documentation, code, and commits are primarily in English.

Please include:

• A short introduction (or cover letter)
• Links to recent work or portfolio (GitHub, live sites, etc.)
• Your availability (days/week)
• Hourly or daily rate, and a draft proposal for total costs for a 3-6 month project
• Framework preference (Vue, React, etc.)