Full Stack Developer
Clinical Skills Institute is seeking an expert-level Wix performance specialist to optimize the speed, Core Web Vitals, tracking configuration, and mobile user experience of our high-traffic website:
https://www.clinicalskillsinstitute.com
This is not a general website-design, SEO-content, or image-compression project. We need someone with advanced experience in Wix Editor, Velo, Google Tag Manager, Google Ads conversion tracking, GA4, TikTok Pixel, Meta Pixel, third-party applications, and Core Web Vitals.
Current Performance Findings
Our preliminary technical audit identified:
Approximately 412 network requests on the homepage
Approximately 193 JavaScript requests
Approximately 4.48 MB of transferred JavaScript
Duplicate Google Tag Manager loading
Multiple Google Ads and Google Analytics loaders
Two separate TikTok pixels
A suspended AnyTrack installation
An expired accessiBe installation that continues loading scripts
An unidentified script producing a Wix 404 error
A TikTok event with an invalid event name
Outdated Velo code attempting to open a deleted popup
An immediate full-screen promotional form on mobile
Approximately 46 homepage sections and 3,500 DOM elements
Heavy Wix Form, FAQ, chat, gallery, video and third-party components
Project Scope
The selected specialist will:
1. Conduct a Complete Performance Audit
Establish mobile and desktop performance baselines
Review Wix Site Speed, Core Web Vitals, Lighthouse and Chrome DevTools data
Identify render-blocking resources, excessive JavaScript, long tasks, layout shifts and third-party overhead
Document all findings before making changes
2. Audit and Correct Analytics Tracking
Create a complete map of all installed tracking tools and conversion IDs
Identify why Google Tag Manager container GTM-M8QH47F7 loads more than once
Consolidate Google Tag Manager, GA4 and Google Ads implementation
Preserve required Google Ads conversion tracking
Investigate the following Google identifiers and eliminate unnecessary duplicate loaders:
G-L9MXPPSFY5
AW-17226826368
AW-16816472781
GT-PHXRXKWT
GTM-M8QH47F7
Investigate two active TikTok pixels and retain only the correct implementation
Correct the invalid TikTok event
Review Meta Pixel, Microsoft Clarity, Cometly and other attribution tools
Remove broken, abandoned or duplicate tracking scripts
Use GTM Preview, Google Tag Assistant, GA4 DebugView and advertising-platform event tools to validate the final configuration
No tracking tag may be removed without first identifying its purpose and verifying that it is not required for advertising attribution or enrollment conversion reporting.
3. Remove Broken and Unnecessary Code
Remove the suspended AnyTrack implementation
Remove or correctly reactivate the expired accessiBe integration
Identify and remove the script generating the Wix 404C error
Audit all Wix Custom Code entries
Remove outdated Velo code referencing the deleted “Pop Up Contact Form” lightbox
Review site-wide and page-specific Velo code for unnecessary execution
4. Optimize the Mobile Popup
Prevent the promotional form from immediately covering the mobile homepage
Disable it on mobile or replace it with a lighter, conversion-friendly alternative
Adjust desktop triggering, delay and frequency
Ensure discount lead collection continues functioning correctly
Reduce layout shifts caused by late-loading forms and popups
5. Audit Wix Applications and Components
Review all installed Wix and third-party applications, including:
Wix Forms
Wix Bookings
Wix Pricing Plans
Wix Members
Wix Chat
Wix Blog
Wix Video
Wix FAQ
Wix CMS
Wix eCommerce
Galleries, slideshows and embedded components
Remove or restrict unused applications without disrupting enrollment, checkout, payment plans, member accounts, forms, CRM automations or student access.
6. Simplify and Optimize the Homepage
Reduce unnecessary sections and DOM complexity
Preserve important SEO content, schema, enrollment messaging and conversion elements
Replace heavy galleries, sliders, videos or app widgets with lighter alternatives where appropriate
Keep the most important content above the fold lightweight
Optimize mobile-specific content independently
Preserve the existing brand design unless a change is required for performance
7. Test All Business-Critical Functions
Before completion, verify:
Enrollment buttons
Tuition and checkout pages
Full-payment and payment-plan options
Lead forms
Discount-code forms
Phone and email links
Google Ads conversions
GA4 events
TikTok and Meta events
Wix CRM submissions
Mobile and desktop navigation
Member login and required Wix applications
Required Deliverables
Before-and-after performance report
Complete tracking and tag inventory
Documentation of every code, tag, app and element changed
Confirmation that all enrollment and payment functions work
Confirmation that Google Ads and analytics tracking remain accurate
Mobile and desktop testing results
Core Web Vitals improvement report
Recommendations for maintaining performance after future Wix updates
Required Qualifications
Advanced experience optimizing live Wix websites
Strong Wix Editor and Velo experience
Expert Google Tag Manager, GA4 and Google Ads conversion-tracking knowledge
Experience with TikTok Pixel, Meta Pixel and Microsoft Clarity
Strong understanding of Core Web Vitals, JavaScript execution, DOM complexity and third-party script performance
Experience optimizing high-traffic lead-generation or eCommerce websites
Ability to make changes without disrupting paid advertising, checkout or revenue tracking
Application Requirements
Please provide:
Three Wix websites you personally optimized.
Before-and-after performance results for each example.
Your specific role in each project.
Examples of resolving duplicate GTM, GA4 or advertising-pixel installations.
Your proposed approach to this project.
Estimated timeline and fixed-price proposal.
Confirmation that you will document every change and fully test conversion tracking.
An explanation of how you would protect Google Ads data while consolidating duplicate tags.
Generic applications without Wix performance and analytics examples will not be considered.
Important Working Requirements
Duplicate the Wix site or create a recoverable backup before beginning.
Use a Wix collaborator role with only the permissions required.
Do not modify domain ownership, billing, payment accounts or business ownership settings.
Do not publish major changes without approval.
Maintain a detailed change log.
Complete the project using milestones: audit, approved implementation, tracking validation and final performance verification.
Pay: $50.00 - $80.00 per hour
Work Location: Remote