WordPress Architect: High-Performance Multi-Brand Overhaul (90+ Mobile Score Mandate)

Project Overview
We are seeking an elite WordPress Developer/Architect to lead a complete brand overhaul for our flagship Premium B2B SMTP & Email Infrastructure Brand. This is a fresh, ground-up build using a modular, component-based architecture. The successful delivery of the flagship site will lead to the rollout of two additional sister brands in our portfolio using the same established framework.

Technical Mandate (Non-Negotiable)

• Performance: The build MUST achieve a 90+ Mobile PageSpeed score out of the box.

• Architecture: Custom Gutenberg-first development. We require a modular approach where CSS and JS are registered and enqueued only for the blocks present on a specific page.

• No Elementor, Divi, or heavy page builders. We are moving away from these to eliminate legacy technical debt.

• Compliance: LCP ≤ 2.0s, INP ≤ 200ms, and zero main-thread tasks exceeding 50ms.

Scope of Work

Phase 1: Multi-Brand Figma Design System
• Create a master Design System in Figma (Shared UI library: buttons, cards, forms, pricing tables).

• Demonstrate how this system applies distinct visual identities (colors/typography) for the flagship and two sister brands.

Phase 2: Modular Development
• Build a lightweight custom WordPress theme.

• Develop custom Gutenberg blocks (e.g., SMTP pricing grids, technical feature lists).

• Implement technical SEO best practices (Semantic HTML, Schema markup, SVG sprites).

Selection Process
Bidders must include:

1. A live URL of a WordPress site you built that currently maintains a 90+ Mobile score.

2. A brief explanation of your workflow for conditional asset loading in Gutenberg.

3. Confirmation of a milestone-based payment schedule released only upon meeting the performance guarantee.