Position: Front-End Developer (senior\tech lead)
Category: JavaScript
English level: fluent
Years of experience: 11

* Gave a lot of public talks on TS/React/ReactNative
* Was as member in the JavaScript Conference program committee for more than two years
* Created a team from scratch to work on client from USA
Have experience working as a lead web and mobile developer. Took part in different types of projects and companies: from a small startup in educational domain, to maintaining existing codebase in a huge SaaS company. 

My main focus has always been creating high-quality user interfaces with great animations. On my last project, for instance, I've worked on a gallery of videos with React-Native, where users can create, edit and publish videos. This gallery included over 10 pages with shared state, logging user actions, notifications, animations, drag and drop, audio and video playback, livestream. 
Most difficult parts on that project where:
1. Optimizing gallery to support lots of data (React\Redux)
2. Improving maintainability of the codebase (TypeScript) 
3. Polishing user interactions, like drag and drop or swipes (pure JS\TS) 

Although I've been leading teams for quite a bit, I consider software development to be my primary focus.
Small to medium team in a non-trivial domain. Great if a project has tricky visualization tasks. I would prefer working on a complicated app with lots of intricate details. Currently I'm more focused on the web, but I can also be useful on the mobile project written in ReactNative.

I do NOT want to be a full-time team lead, but I can be a tech lead. I have 3+ years of experience leading and mentoring, but I would prefer to stay focused on my primary craft

Prefer React ecosystem, but I don't mind to learn a new framework. 

I know frameworks are hot these days and having experience with a framework is a must, but having learned Angular 1.3 (wow, am I really that old...), React and Elm, I do not consider learning new framework or even language as the most difficult task.