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Rare Expertise Case Study: How We Scaled a WordPress Multisite Architecture When Commercial Plugins Failed

Angel Niño

Accelerating the growth of Rare Expertise is just one example of our commitment. At Crazy Imagine Software, we take WordPress architecture further to develop cutting-edge environments that support your growth and innovation. Let's start working on the future; schedule your free audit to identify and capitalize on real growth opportunities.

Rare Expertise Case Study: How We Scaled a WordPress Multisite Architecture When Commercial Plugins Failed

WordPress looks simple on paper. Nothing that a few templates and configurations can’t solve, but the platform is much more than that. With the right expertise, developing a solid multisite is still challenging, but it is completely possible.

It’s a challenge that Rare Expertise put on the table and that at Crazy Imagine Software we accepted and exceeded. We leveraged our experience to build a platform designed to compete and scale progressively. Discover how.

The trigger: taking WordPress beyond its limits

Rare Expertise is a group of healthcare experts based in New Jersey, United States. Their purpose is clear: to help pharmaceutical organizations address the challenges inherent to rare diseases.

They needed a new website to reflect their growth and communicate their vision and mission much more effectively, and they knew that a standard WordPress site would not help them. They needed something bigger, more challenging: a multisite platform.

Think of it this way: a multisite is like trying to conduct an entire orchestra instead of playing a single violin. It’s a powerful beast if you know how to tame it, but absolute chaos if you have no idea what you’re doing.

The solution: custom WordPress development with cutting-edge talent

Rare Expertise had a very ambitious enterprise WordPress optimization project. Many refused to support them due to the complexity of their case, but where others saw difficulties, we saw a wide margin for innovation.

Beyond facilitating installations, at Crazy Imagine Software we are also dedicated to building the future, developing modules and functionalities aligned with Rare Expertise’s roadmap milestones and business priorities.

  • We created custom plugins from scratch to address gaps and improvement opportunities in processes and sequences.
  • We implemented a CSS system and shortcodes for building complete web pages for the internal team.
  • We developed an advanced caching layer and server-level query optimization to stabilize load times below 2 seconds.
  • We configured an advanced permissions system to manage specific content without compromising security.

We accelerated Rare Expertise’s roadmap by 60% in Q1 2023, freeing up valuable time for planning mid-year strategic goals. This was also reflected in ROI, which increased by 30% compared to 2022.

The takeaway: anyone can install WordPress, but very few can dive into the complexity of a multisite system and create custom tools that provide the client with a level of power and flexibility they didn’t think was possible.

That’s what we did for Rare Expertise. We didn’t give them a website, but a custom content creation machine—something no YouTube tutorial can offer.

How Crazy Imagine Software builds the future of WordPress development

No matter how basic it may seem for some projects, WordPress is the king of content management globally. According to SoapMedia data, WordPress holds 60% of the CMS market, with nine times more customers than its closest competitor.

WP Beginner provides more insight, revealing that WordPress powers 36.28% of the 10,000 most visited websites globally. In other words, it has been a guarantee for the most recognized and consulted projects around the world.

Don’t settle for the basics. An advanced approach that exploits WordPress’s true capabilities is a critical factor in accelerating your roadmap and achieving your goals much sooner than expected. That’s how we’ll help you at Crazy Imagine Software.

Custom plugins that accelerate the roadmap

We design tailor-made plugins focused on completely eliminating your bottlenecks by:

  • Automating manual tasks.
  • Connecting scattered data.
  • Turning operational processes into stable functionalities.

Instead of adapting your strategy to the limits of a generic plugin, we build extensions that respond to your business rules, internal workflows, and key metrics, so that each sprint unlocks more capacity instead of consuming it.

Web design and UX with high scalability

When we design new interfaces, we balance user experience and long-term architecture in a single process, coupling consistent design systems, reusable components, and template structures to ensure visual coherence.

This results in sites that support new sections, functionalities, and content types without rewriting the theme’s foundation or multiplying frontend complexity.

In addition, we prioritize load speed, accessibility, and navigation clarity so users reach the actions that impact your business faster, while your team can iterate on design without breaking the experience.

API integration with a release-focused approach

Our API integration starts from a clear premise: every external connection should bring you closer to a release, not add more technical complexity than necessary.

Our integrations encapsulate your business logic, handle errors in a controlled way, and keep your dependencies organized so you can replace, scale, or disconnect services without risking the entire site.

That way, connecting payment gateways, marketing tools, legacy systems, or third-party services becomes a direct enabler of new functionalities—not a source of technical debt that later delays your releases.

Sprint-aligned workflows

We adapt WordPress development to the way your team already works: we define workflows aligned with your sprints, your DORA metrics, and your business objectives with a single purpose: to associate each iteration with clear and measurable deliverables.

From how we organize the backlog to how we document technical decisions, everything is designed to reduce rework, shorten feedback cycles, and make it easier to onboard new talent into the project without losing context. This includes:

  • Deployment pipelines.
  • Well-defined testing environments.
  • Shared acceptance criteria.

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