Position: Lead Frontend Developer
Category: JavaScript
English level: upper
Years of experience: 4

- create architecture and implement 70% functionality of big data product.
- refactor more than 50% of code and increase project performance almost in 4 times
- trust relationship with client
- successfully implemented Stripe subscriptions with different options, many others integrations as Jira, Segment, Zapier
- create deep math formula counter
- architecture of applying different modes (such filters, sorting , formatting) to huge data set
- create an architecture of data builders as Kanban, Portal roadmaps
My entire experience is about 4 years. I started with internship that I successfully completed and got the offer to continue working with the company. After working in this company for almost 2.5 years, client of project that I was working, made a deal with this company after which I started working for him for almost one year
Technologies stack i have been working with: 
Main: Js, TypeScript, React (Redux, Saga), material ui, css(sass, lass)
Additional: socket-io, stripe, ant design, react-virtualized (react-sortable-tree), lodash, react-dnd, google charts, formik, react-hook-form
- ability to develop as developer or lead