refinement of the adminka on Yii2

There is a web system on Yii2 (only admin and API for applications, without frontend) - you need to change edited fields in the admin for several types of objects, add a new type of object, and add a simple get-request to the API.
Payment on the fact (can be phased) or CBD.
Leave a portfolio, examples of works.

A back-end developer who knows how to develop web application functionality has experience developing an API for web services.
requirements:
- adequate, thoughtful and competent specialist
- the ability to understand the task, to bring the work to the end
- work experience, examples of non-standard tasks
- PHP, Yii1, Yii2, MySQL
Understanding the architecture of web systems
- experience with parsers, grabbers, mailing lists, maps, etc. - welcome
The desire to learn and apply new technologies.

Important: please dont write if you dont have live job examples, havent read the assignment, or if youre not familiar with Yii2.