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Barclay Leach

Trade & Channel Marketing | Web Developer · Systems Engineering (In progress)

Founder at Cernext | Marketing & Software Lead at IDI Adonai

Lima, Perú

Summary

I grow channels — social audiences, acquisition funnels, paid media — and build the production systems that carry them: Next.js platforms, payment gateways, AI chat automation.

Experience

IDI Adonai Consultoría — Marketing & Software Lead

Sep 2026 – Present

Perú · Remote

  • Designed, built and launched the company's new web platform — replacing its WordPress site with an in-house React 19, TypeScript and React Router v7 build with static prerendering — and built its CRM in-house.
  • Optimize lead capture across the web and social media (LinkedIn, Instagram, Facebook, TikTok and YouTube), including a B2B funnel with a two-step qualification form, contextual links in every section, and lead delivery to Telegram and corporate email.
  • Maintain the company's software and lead its technology. Deployment is automated with GitHub Actions: every push to main ships to production, behind a guard that blocks secrets from the bundle.

React · TypeScript · GSAP · Tailwind CSS · PHP · SEO · CRM · Social Media

KetBia — Web Systems & Channel Growth Lead

Feb 2026 – Present

La Merced, Junín, Perú · Hybrid

  • Grew and managed KetBia's Instagram to 55K+ followers, designing the CTA flow — bio to landing page to WhatsApp — that converts that audience into customers for KetBia's UGC and video editing services.
  • Led KetBia's digital transformation: full-stack web development, systems architecture and payment gateway integration.
  • Optimized organic positioning through technical SEO, reinforcing a coherent brand identity across the platform.

React · Node.js · Payments · SEO · Social Media

Cernext — Founder

Nov 2025 – Present

Perú · Remote

  • Founded and lead a full-service digital agency delivering web development, SEO, digital advertising, ERP/CRM systems and AI chat automation.
  • Built the company platform with Next.js 16, React 19, Supabase, Tailwind CSS v4 and Vercel; architected multi-language routing and contact automation via Nodemailer.
  • Drove client acquisition, service delivery across 5 verticals and brand positioning in the Peruvian market.

Next.js · Supabase · Tailwind CSS · Meta CAPI · Google Ads · AI Chatbots · Claude Code

L & F Golosinas — Web, SEO & Social Media Manager

Jul 2026 – Present

San Ramón, Chanchamayo, Perú · Remote

  • Built and launched lyfgolosinas.com end to end.
  • Implemented local SEO targeting searches across the Junín region.
  • Manage Instagram, TikTok and Facebook for the business, from July 2026 to present.

Next.js · Tailwind CSS · SEO · Instagram · TikTok · Facebook

Barón Club — Web Developer & Paid Media Strategist

Dec 2025 – Present

Valencia, España · Remote

  • Collaborated with the team to develop baronclub.es and its advertising on Google and Meta.
  • Engineered a custom WordPress reservation plugin using the Telegram Bot API and SMTP for automated management.

WordPress · PHP · Telegram API · Google Ads · Meta Ads

Aguxtin — Frontend Developer — Scrollytelling Landing Page

May 2026 – Jun 2026

Remote

  • Built an immersive scrollytelling landing page for a conscious design e-commerce brand, embedded via full-viewport iframe in WordPress/Elementor.
  • Engineered multi-scene GSAP ScrollTrigger animations, a guided breathing sequence with audio synchronization, a dynamic day/night sky cycle and parallax cloud layers.
  • Deployed on Vercel with CI/CD via GitHub; implemented Lenis smooth scroll synchronized with the GSAP ticker.

Next.js · GSAP · WordPress · TypeScript

Selected Projects

IDI Adonai — Marketing & Software Lead · Full Stack

A full rebuild of the website for a consultancy in hyperspectral satellite observation, subsurface detection and high-altitude drones. React 19 and TypeScript with prerendered React Router v7, Tailwind CSS v4, Motion, GSAP ScrollTrigger and Lenis animation, a two-step B2B form delivering leads to Telegram and email, and Playwright + axe testing.

React · TypeScript · GSAP · Tailwind CSS · SEO

Aguxtin — Frontend Developer

An immersive scrollytelling landing page for a conscious design brand. Multi-scene GSAP ScrollTrigger animations, a guided breathing sequence synchronized with audio, a dynamic day/night sky cycle and parallax clouds — embedded in WordPress/Elementor through a full-viewport iframe.

Next.js · GSAP · WordPress · SEO

Cernext — Founder · Full Stack

The platform of my own digital agency. Next.js 16 App Router with React 19, Supabase, Tailwind CSS v4 and Nodemailer, with fully separate ES/EN route trees, per-locale slugs, an AI chat widget and dual Meta Pixel + Conversions API tracking.

Next.js · React · Supabase · Tailwind CSS · Meta CAPI · SEO