Ramón Polidura Rueda

London, UK

Senior Frontend Engineer (React, React Native, TypeScript, Next.js) with extensive experience shipping production frontend for AI-driven products, mobile apps, and complex UIs. I own frontend architecture end to end and lead the engineers building against it.

  • 20% increase in collections and revenue at Collekt.ai, from the agent-facing chatbot I designed and shipped.
  • 10k+ creators served by the LLM-powered onboarding flow I led at Passion.io.
  • Led a team of three frontend engineers across a multi-product platform, mentoring through daily pair programming and hands-on component architecture.
GitHub

Tech Stack

Languages:
HTML5HTML
CSSCSS
JavaScriptJavaScript
TypeScriptTypeScript
Frameworks:
ReactReact.js
RemixRemix
Next.jsNext.js
ExpoExpo.io
Testing:
Testing LibraryReact testing library
JestJest
CypressCypress
StorybookStorybook
Tools:
CursorCursor IDE
JiraJira
GitHubGitHub
FigmaFigma

Experience

Passion.io, London | Senior Frontend Developer (contract) | August 2025 – April 2026

  • Designed and delivered an LLM-powered creator onboarding flow: chatbot-guided AI avatar setup with voice recording, colour picking, and UI generated dynamically from user input and model output.
  • Architected the frontend, wrote delivery tickets, and mentored three senior developers through daily pair programming.
  • Delivered product UI across Android, iOS, and desktop for a mobile app builder serving 10k+ creators.
React NativeTypeScriptExpoGraphQLJest

Collekt.ai, London | Lead Frontend Developer (contract) | October 2024 – May 2025

  • Increased collections and revenue by 20% by shipping an agent-facing chatbot for live end-user conversations.
  • Led a team of three remote frontend engineers, setting architecture, component conventions, and test coverage standards across the platform's product suite.
  • Built a dynamic agentic campaign generator with AI analysis of results, giving non-technical managers one UI to launch and tune campaigns.
  • Built the end-user chatbot experience, lifting engagement across the collections journey.
ReactRemixTailwindTypeScript

Silicon Rhino, London | Frontend Developer | July 2020 – September 2024

  • Most senior frontend engineer across five client products, owning component libraries, routing, server-side rendering, and deployment from MVP to production.
  • Shipped an e-commerce platform, a healthtech clinic management system, and a cross-platform adventure sports app for iOS and Android.
  • Migrated the shared codebase to the Next.js 13 app router behind new client projects, onboarding the wider team and pair programming to apply it to live work.
ReactNext.jsNode.jsMobXMaterial UICypressReact Testing Library