Position: Front-end developer (React)
Category: JavaScript
English level: fluent
Years of experience: 4

I have worked on legacy projects where I managed to improve performance by up to 20% percent with simple code optimizations
I have been mentoring new developers and helped them to learn new things quickly
For the past year and a half I have been working in a web development field as a React developer. I have commercial experience with:
HTML, CSS, Sass, Less
JavaScript (es5, es6), jQuery
React (Next.js, Gatsby.js), React Hooks, Redux, MobX, Styled Components
Git
Testing (Jest, Enzyme, Mocha)
Gulp, Webpack
Docker, GitLab CI
Node.js, Express.js
SQL and NoSQL databases

I am willing to learn Angular and/or Vue.js
I would like to improve my knowledge and work on interesting and challenging projects in a team of professionals. 
It would be a big plus, if there will be a possibility to learn new tools and technologies.