Ariadna Ballestar — AI Lead and Web Developer based in Barcelona

Experience

1. AI Lead

   Current

   Cronuts · Barcelona

   03/2026 – Present

   • Defining and implementing the agency's AI strategy: identifying opportunities, selecting tools, deploying agents to production, and deciding to migrate new client websites from WordPress to Astro + Tailwind.
   • Autonomous PR review agent with Claude Code: handles 100% of trivial merges without human intervention.
   • Growth Ops MCP: designing and deploying a server with full access to client websites (FTP + WordPress API) so the Growth team can operate without depending on Product; trained the team on its use.
   • Internal kanban built with DOM scraping of Holded — no official API, no additional cost — adopted across the whole team.
   • Cross-departmental coordination to ensure effective adoption of the implemented agents and automations.

2. Web Developer & Process Automation

   Cronuts · Barcelona

   2024 – 03/2026

   • Development and maintenance of client websites with WordPress and Elementor, including migrations and SEO optimisation.
   • WordPress lead capture plugin: real-time sync with Notion, Slack and email in under 2 seconds, zero manual intervention.
   • Data extraction and analysis with Python (scraping, deduplication, email validation) for client campaigns.
   • Implementation of digital security improvements on client projects.
   • Direct coordination with clients on large-scale projects, ensuring accurate and timely delivery.

3. Web Developer & SEO Specialist

   Interactivos, Barcelona

   • Turning ideas into custom, functional websites.
   • Implementing high-impact SEO strategies using Semrush, Ahrefs and ScreamingFrog.
   • Responsive and visually appealing web design with WordPress, HTML, CSS and JavaScript.

4. Web Developer

   Collectif Pluma, Lyon

   • Development and design of user-centred websites.
   • Web performance optimisation and collaborative work with creative teams.