GTM Mixer
Discover how NerdHeadz developed GTM Mixer, a GTM configuration tool designed to simplify customization and management f
Discover how NerdHeadz developed GTM Mixer, a GTM configuration tool designed to simplify customization and management for users with minimal technical expertise.



The Challenge
Managing Google Tag Manager (GTM) configurations was a complex and error-prone task for GTM Mixer’s team.
They faced challenges like
- Time-consuming manual work: Adjusting JSON files required technical expertise and often led to inconsistencies.
- Risk of human error: The manual process made setups prone to mistakes, slowing down workflows.
What they needed was clear
- A simpler, more efficient way to manage configurations.
- An automated tool that worked for both technical and non-technical users.
The challenge wasn’t just solving the problem but creating a solution flexible enough to handle complex conditions while remaining easy for anyone to use. That’s where we stepped in.
Building the Right Solution
GTM Mixer imagined a smarter, more user-friendly way to manage Google Tag Manager (GTM) configurations.
Performance
Ensuring fast load times and responsive interactions.
Security
Implementing robust security measures and data protection.
Maintainability
Building clean, well-documented code for long-term maintenance.
The Solution
Creating a solution for GTM Mixer meant focusing on functionality, ease of use, and adaptability.
We broke the process into clear phases to ensure thorough execution.
Development process
Planning & Design (Weeks 1-4)
Defined core features like JSON automation and rule-based logic. Built prototypes for the JSON parser and automation framework.
Development & UI Implementation (Weeks 5-8)
Built backend logic using Bubble.io and JavaScript. Developed a user-friendly interface with React.js/Vue.js. Integrated error detection for consistent results.
Testing & Launch (Weeks 9-12)
Conducted rigorous testing to ensure accuracy and performance. Released the MVP for client feedback and made improvements based on input.
Technologies used
Bubble.io for backend functionality, JavaScript for rule-based JSON management, React.js/Vue.js for a responsive interface.

Results
Delivered MVP within 12-week development cycle across 3 structured phases
Automated JSON processing replaced manual GTM configuration, eliminating human error in tag setups
Rule-based logic engine enables non-technical users to manage complex GTM conditions without coding
Built with Bubble.io backend and React.js/Vue.js frontend for responsive cross-device access
Custom rule modifications allow precise JSON changes based on specific conditions and triggers
Our Roles
Wire-Framing & Design
Maria Kulkina
Project Manager
Katerina Skumen
Custom Software Development
Illia Natarov
QA
Vadim Nikolaev























