Evgeny Pyastolov

I am a Senior Backend PHP Developer for many years. Worked for big corporate projects including a top international business messaging platform, an international online shop and a logistics operations centre and a top Russian B2B trading platform

I'm experienced in PHP from 5.6 to 8.2, Symfony 7.2, PostgreSQL, MySQL, and smaller technologies.

Among other things I did that at my last project:

Created a backend PDF rendering system for exporting chat messages with custom emojis and unicode characters support which improved user

experience

Created a custom contact fields system for the PostgreSQL table containing more than 100 millions rows

Created an integration with FirstPromoter API allowing to attract customers through an affiliate system

Debugged dozens of very elusive bugs including sensitive ones, and refactored thousands of code lines to keep the project maintainable and

performant

Optimized tricky SQL queries to increase performance up to 20 times