Position: Back-end developer
Category: Golang
English level: upper
Years of experience: 10

From my perspective, the biggest achievement is when you realize that a result of your work helps company to make more income or just released feature will save tons of time for users or colleges in the future.

In my case, it was management systems, database optimizations, mobile applications etc.
I can identify myself as a hard worker but my family members  and friends call me "workaholic")
While working on a task(-s), I try to foresee possible options for the extending of a specific feature or potential issues and constantly searching for the most suitable and optimal solution.
 
During my professional career, I had to work in various domains: booking, e-commerce, fin-tech, blockchain etc. I was a full-stack and mobile developer (on Flutter); I was working on database architecture and thinking together with management about UI\UX of a product. So I know and understand various aspects and nuances of product development.
Interesting tasks, the opportunity of using new technologies but the main thing is - a creation of something useful for the end-user: client or call-centre operator.