SaaS Laravel Theme Engine Development

We are looking for an experienced software house or development agency to create a Theme Engine System that integrates with our existing PHP Laravel multitenant SaaS platform.
The theme system must be based on Liquid or Twig templates (preferred), with no client-side rendering.
All theme rendering should be server-side.

Core Features Needed:
1. Partner Theme Upload Module
• A complete interface inside the Partner Console where third-party partners can upload their themes.
• A theme may include:
o Liquid/Twig templates (layouts, sections, partials)
o Assets (CSS, images, icons, JS where needed)
o Theme metadata (name, description, version, compatibility)
o Custom configuration JSON / YAML for customizable fields
• System must:
o Validate theme structure
o Verify templates & manifests
o Ensure compatibility with required variables

2. Super Admin Review & Approval Workflow:
• Super admin should be able to:
o Review submitted themes (preview, check validations)
o Approve or reject themes
o Send feedback / request changes
o Edit theme metadata
• Once approved:
o Themes are published to the Theme Marketplace for all tenants.

3. Client Theme Selection & Customization:
• Clients/tenants can:
o View all published themes
o Install/apply a theme
o Customize theme settings such as:
 Colors, typography
 Logos, banners
 Homepage sections ON/OFF
 Section reorder (drag & drop) if feasible
o Customization should be driven by:
 JSON schema (theme-config.json)
 Automatically rendered by Laravel (server-side)
• Final theme output should always be server-rendered, using Liquid/Twig.

Technology Requirements:
• Must work seamlessly with:
o Laravel (Backend)
o Liquid (Shopify-like) or Twig (Symfony-like) templating
• Fully multi-tenant compatible
• Secure file upload handling
• Theme versioning support
• Modular theme packaging structure (zip-based preferred)
• Efficient caching for theme rendering

Deliverables
• Theme Engine Architecture (documentation + diagrams)
• Database schema for:
o Themes
o Theme versions
o Partner submissions
o Customization data
o Approvals
• Partner Console (upload + validation)
• Super Admin approval panel
• Client theme marketplace module
• Server-side theme preview system
• Dynamic theme customization (JSON-driven)
• Integration layer for Laravel controllers
• Theme packaging & versioning system
• Complete API documentation

What We Expect From Your Agency
• Experience with:
o Laravel SaaS
o Liquid/Twig templating engines
o Theme engines / CMS systems (very important)
o Multi-tenant architecture
• Clean coding standards, scalable architecture
• Ability to propose best practices
• High-quality documentation and delivery