Position: Senior Java Developer
Category: Java
English level: upper
Years of experience: 9

I love solving different types of algorithmic problems (leetcode,e-olimp,interviewbit), researching.
 I have participated in the migration of db (functions, procedures, data) from oracle to Postgres.
I am working with bytecode in java with the help of bytecode manipulation tools.
I am experienced especially in payment systems which is capable of handling huge amount of load and payment transactions. I build system from scratch and work as software architect in current company. I love challenging projects and tasks.
First of all interest. Well documenting and progress. I have to learn new things from each project.