Guillermo Vargas Jaquete

Available to hire

I’m a web developer with 5+ years of experience building high-performing, conversion-focused marketing websites for SaaS companies.

About

I’m a web developer with 5+ years of experience building high-performing, conversion-focused marketing websites for SaaS companies. I specialize in React, Gatsby, TypeScript, Tailwind, WordPress, and headless CMS solutions like Contentful, delivering landing pages and digital experiences optimized for SEO and Core Web Vitals.

I thrive in collaborative, remote-friendly teams, working with marketing, design, and content stakeholders in Agile environments. I’ve implemented AI-assisted workflows to speed delivery, integrated analytics and tracking, and consistently deliver accessible, cross-browser experiences that drive measurable results.

  • 5 years' experience
  • Joined September 2025

Languages

  • Spanish; CastilianFluent
  • EnglishFluent

Industry experience

  • Software & Internet
  • Professional Services
  • Media & Entertainment
  • Education

More experts

Work experience· 4 roles

Lead Web Developer · HostawayJan 2025 – Present · 1 yr 11 mos

Build landing pages and marketing experiences within the marketing team, shipping conversion-focused, high-performance pages; ran A/B tests with VWO; achieved ~25% conversion increase on the home page hero; integrated HubSpot forms and conversion tracking; implemented Contentful integration for content-driven pages and editorial workflows; achieved Core Web Vitals 90+ on key marketing pages; maintained WCAG accessibility and cross-browser compatibility; adopted AI-assisted workflow to reduce feature delivery and deployment time by ~40%.

Full-Stack Developer · ZendropNov 2022 – Feb 2025 · 2 yrs 4 mos

Build and implement marketing websites and multilingual landing pages using React, TypeScript, Tailwind, WordPress, GraphQL, and PHP; ran A/B tests with VWO increasing landing page conversions from 3% to 5%; optimized Core Web Vitals (reducing page load times by 1–2 seconds, 20-point Lighthouse improvement); developed custom WordPress plugins in PHP (e.g., CSV import reducing manual migration time by 80%); applied SEO & GEO strategies; set up tracking and analytics (GA4, Meta Pixel, Google Ads); ensured WCAG 2.2 accessibility and cross-browser compatibility; collaborated with marketing, design, and content teams in Agile/Scrum; completed 20+ sprints.

Senior Analyst & Integration Engineer · Canidium (SaaS)Jan 2021 – Jan 2022 · 1 yr 1 mo

Contributed to digital transformation: migrated agent workflows and operations into Salesforce CRM; participated in client meetings to gather requirements and design tailored integration workflows.

Full-Stack Developer · Quarzo Systems (SaaS)Jan 2020 – Sep 2020 · 9 mos

Education

Bachelor's in Software Engineering · Cenfotec University2030 – 2026

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