Savvy engineer to assist with adding font capabilities to electronic sign

We are an IoT company and are seeking to contract with a wonderful software developer for our technology. The following is a description of the project. Electronic modular 32x128 LED sign driven by ESP32 microcontroller with codebase written in C / C++ needs functionality added to allow loading fonts from flash, switching fonts, and designing fonts using a PHP interface. You will be working with the original developer who has 25+ years of experience and can suggest approaches. Must be familiar with C, C++, PHP, and the use of git. Previous microcontroller experience a plus. Looking forward to hearing from you!