Hi!
I’m Dolf Barr

Projects

I’m currently involved in a few small open-source projects. Keep an eye out for more contributions from me soon 🚀

• 🪵 react-log-hook40+

  Lightweight & customizable logging hook for your react components lifecycle

  Tech: React⋅TypeScript⋅testing-library

• 🍅 pimer

  Simple & minimalistic pomodoro app

  Tech: Svelte⋅JavaScript⋅tailwind

Work Experience ⋅ 11+ years

• Senior Frontend Engineer

  at Semrush

  Jun ’25 — Present

  Tech: Javascript⋅React.js⋅Typescript⋅React Flow⋅HTML⋅CSS

• Senior Software Engineer

  at QuantumSoft

  Oct ’15 — May ’25

  Within different teams working on projects for QuantumSoft partners. Most of the time, I am responsible for the frontend architecture and development of the UI and application business logic.

  Tech: Javascript⋅React.js⋅Typescript⋅Python⋅HTML⋅CSS⋅PHP

• Senior Software Engineer (Frontend)

  at Invitae ⋅ contract

  Apr ’19 — Oct ’24

  Working on the frontend architecture and implementation business processes for web portal & inner tools.

  Tech: Javascript⋅React.js⋅Typescript⋅Python⋅HTML⋅CSS⋅Less⋅Stylus⋅Sass⋅Node.js (NestJS)⋅Cypress⋅React Hook Form⋅Yup⋅Storybook⋅Testing Library

• Fullstack Engineer

  at Mind Doodle ⋅ contract

  Aug ’16 — Mar ’19

  Responsibility for the frontend architecture and development of the UI and application business logic.

  Tech: Javascript⋅React.js⋅Typescript⋅Flow⋅HTML⋅CSS⋅Less⋅Websockets⋅Node.js (Express.js)⋅Webpack⋅Cytoscape⋅d3⋅Draft.js⋅PHP

• Full-Stack Web Developer

  at KREOSOFT

  Nov ’13 — Sep ’15

  Participated in the development of corporate and social services for students and employees of Tomsk State University.

  Tech: Javascript⋅jQuery⋅CSS⋅HTML⋅PHP⋅Python⋅Bootstrap