Résumé / September 2026

Dan Lopez.

Web engineering, design & growth

hola@funnels.es +34 665 50 44 89Spanish · Open to remote workAvailable from October 2026 · Can work German business hours

Download résumé My Genki explorations

Founder of funnels.es, where I design and build websites and sales funnels, combining development with copywriting and growth marketing. Recently launched Kyun, a React and TypeScript application, with Firebase, automated testing and CI/CD. I use Codex and review the code it produces. After years of client projects, I want to join one team and keep improving the same product.

Recent work

Kyun

Launched Sep 2026

Technical development · Japanese-learning web application

Owned all technical development and launched the app in three weeks using Codex, collaborating with a Japanese teacher responsible for the learning content. Built a React 19 and TypeScript frontend with Vite, Tailwind CSS, Radix UI and a custom FSRS spaced-repetition engine.
Implemented Firebase Authentication, Firestore, second-generation Cloud Functions and App Check. Set up staging and production environments, GitHub Actions CI/CD with Workload Identity Federation, automated checks, Sentry monitoring and PostHog analytics.

funnels.es

2024–present

Founder · Funnel design and development

Design and build websites, VSL funnels and quiz funnels, handling the interface, custom development and conversion-focused copywriting.
Built a custom quiz funnel for a Japan travel agency using HTML, Tailwind CSS and JavaScript, including conditional questions, saved progress and Spanish copy. Booked-call conversion rose from 3% to 11.6%.

Technical skills

Frontend & design

React 19, TypeScript, JavaScript, HTML, Vite, Tailwind CSS, Radix UI, Figma, Webflow.

Backend & delivery

Firebase Authentication, Firestore, Cloud Functions, App Check, Firebase Hosting, GitHub Actions, Google Workload Identity Federation. Cloudflare domain management.

Quality & AI workflow

Codex, Vitest, Testing Library, Firebase emulators, ESLint, Lighthouse/WCAG checks, Sentry, PostHog.

Growth

Conversion rate optimisation, VSL and quiz funnels, copywriting, user acquisition, A/B testing and performance analysis.

Earlier experience

lander.co

2021–2023

Founder

Web design agency work in the US, followed by funnel-building services in Spain. Exited the US web design agency.

DrWeb

2020

Founder

Founded a web design agency in Spain. Designed and developed websites around user experience and client business goals. Exited the business.

gv.consulting

2017–2019

Partner

Growth advisory and services in Dubai, working with digital ventures on acquisition and business growth.

TURN8

2015–2016

Entrepreneur in Residence

Managed a pre-accelerator programme in Dubai and advised startups on acquisition, funnels, onboarding and UX.

Startupfy

2011–2014

Founder

Founded a startup studio and consulting business for startups.

Innovacart

2009–2010

Founder

Founded a QR-commerce startup, my first entrepreneurial venture.

Professional development

Reforge Growth Series · Reforge Product Strategy

Languages

Spanish: native · English: fluent