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Sebastien LarrivéeSL

Sebastien Larrivée

Expert WordPress | Application Designer / Developer

€390/day
Noyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sebastien

I design and optimize fast, reliable, and conversion-oriented WordPress/Elementor Pro websites. Clear design system, clean code, few "gadget" plugins, measured performance (Core Web Vitals), fluid customer journeys.

Core Experience


Nord Image — May 2023 → Today

Lead WordPress/WooCommerce: custom themes, ACF/CPT, shortcodes/widgets, ACF search engines, configurators, glossaries, Click & Collect, custom statuses/emails, PDF invoices, pre-orders, logistics (CDI – Collect & Deliver).
Perf & security: WP Rocket/LiteSpeed, CDN, media optimization, TTFB, SMTP/deliverability, GDPR & Consent Mode v2, monitoring.
SEO & data: semantic structure, schemas, redirects, GA4/Tag Manager, UTM.
Infra: OVH/o2switch, DNS/SSL, staging → production without downtime.


iZyLiFy Web Design — 2018 → Today

WordPress Studio: showcases & e-commerce, Elementor component libraries, archive/category templates, light CRM/ERP integrations, massive CSV imports/exports, automations (emails, stock, statuses). Sectors: sports (clubs & merch), artisans/industry, B2B, local authorities.


Other Reference

Project Manager APAJH Grand Nord: managed digital tools (LSF video library, educational games). This "product" culture reinforces my WordPress methods (scoping, QA, documentation).


Key WordPress Skills

• Custom themes & templates (Elementor Pro)
• WooCommerce: checkout funnel, emails/PDFs, pre-orders, transport/logistics
• ACF/CPT: robust content structures, simple editorial back-office
• Technical SEO & GA4/Tag Manager tagging plan
• Performance, caching, CDN, SMTP, and security


The WordPress ↔ Application Link

My back-end background (Laravel/Lumen, occasional Electron) allows me to cleanly connect WordPress to the IS (APIs, webhooks, CSV, CRM). Result: an integrated e-commerce site without unnecessary complexity.
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Nord-image
    Developer
    SOFTWARE PUBLISHING
    May 2023 - Today (3 years and 3 months)
    We design, redesign, and optimize websites and stores that combine polished design, measured performance, and effective customer journeys. Our promise: a fast, easy-to-manage website that drives results (leads, sales, SEO).

    Key Skills
    • WordPress/Elementor Pro Creation & Redesign: design system, reusable components, mobile-first, accessibility.
    • WooCommerce: variations, Click & Collect, custom statuses/emails, PDF invoices, pre-orders, logistics (CDI – Collect & Deliver Interface), optimized checkout funnel.
    • Custom Solutions: CPT/ACF, dedicated shortcodes/widgets, search engines (ACF), glossaries, maps & hotspots, product configurators (e.g., customization/numbering).
    • Integrations & APIs: CRM (Salesforce – JWT S2S), ERP/Planning, webhooks, large-scale CSV imports/exports.
    • Performance & Security: Core Web Vitals/TTFB, caching (WP Rocket/LiteSpeed), CDN, media optimization, monitoring, fixes (migrations, PHP, SMTP/deliverability).
    • SEO & Data: semantic structure, schema markup, redirects, GA4/Tag Manager tagging plan, UTM, Consent Mode v2/GDPR.
    • Hosting & Migrations: OVH, o2switch, DNS/SSL, staging → production without downtime, CDN.

    Method
    • Audit & Objectives
    • Mockups and Design System
    • Modular Development (ACF/CPT)
    • Integrations & QA
    • Perf/SEO/Tracking
    • Go-live + skills transfer & documentation
    Wordpress HTML5 CSS3 JavaScript PHP
  • APAJH
    Freelance Project Manager
    MEDICAL
    November 2021 - May 2022 (6 months)
    Saint-Quentin, France
    Development of application content to enhance previously implemented applications. Creation of an ENT (Digital Workspace).
    Electron.js JavaScript phpMyAdmin PHP 5
  • APAJH
    Digital Project Manager
    MEDICAL
    November 2020 - November 2021 (1 year)
    Saint-Quentin, France
    Project manager for the creation of applications (web and desktop) featuring a blog, a sign language video library, and various educational games.

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Education

  • Professional Title Web and Mobile Web Developer
    La Manu
    2019
  • Professional Title Application Designer Developer
    La Manu
    2021

Skill set

Categories