ConvertKit needed a developer to upgrade and maintain a suite of plugins

Nathan Barry, founder of ConvertKit, was looking for a WordPress developer to help with several existing plugins and new integrations.

I tweeted my interest to Nathan and was reinforced by two friends/past clients:


ConvertKit had four existing integration plugins that were distributed via and on their own site. These plugins allowed customers to add signup forms on their WordPress site and also integrate with popular plugins like Gravity Forms and WooCommerce. These integrations were vital for ConvertKit customers to easily add signup forms for ConvertKit’s email marketing services to WordPress sites.

Nathan also had several new integrations that he wanted developed to serve ConvertKit’s growing customer base. It was important to him to find a WordPress expert who knew the ecosystem and could manage all of the plugins.

How we were able to help

Grow Development worked with the ConvertKit development team to review the existing plugins and the needed API updates. We collaborated via GitHub and Slack.

We started with new plugin development, which included building integration plugins for MemberMouse and Paid Memberships Pro.

To help with plugin distribution and updates, two of the existing plugins were submitted to

Grow Development worked with two popular landing page plugin developers to integrate with ConvertKit API.

Then we upgraded existing plugins  to use the latest version of the ConvertKit API.

Results so far

Grow Development now manages seven integration plugins for ConvertKit that are hosted on and internal integrations. We also manage support requests on and help with customer support tickets. The ConvertKit team is very easy to work with and are passionate about serving their customers!

Project Details

  • Client: ConvertKit

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