Hi, I'm Sofi.

Frontend Developer

About Me

Sofi Bel image

Frontend developer with over 3 years of experience in web development. My responsibilities include creating, supporting, and testing websites, as well as developing user interfaces with a focus on cross-browser and mobile compatibility (mobile-first approach). I possess skills in HTML, Pug, CSS, SASS/SCSS, JavaScript (ES6+), TypeScript, React, React-Router, React Hooks, Redux and Apollo GraphQL. My unique advantage lies in my continuous pursuit of learning and improvement. Additionally, I am proactive and adept at planning my own activities to achieve maximum results.

Skills

  • HTML
  • CSS
  • JavaScript (ES6+)
  • TypeScript
  • React
  • React Router
  • React Hooks
  • Redux
  • Handlebars
  • Pug
  • SASS
  • PostCSS
  • BEM
  • NPM
  • Yarn
  • Git
  • Gitlab
  • GitHub
  • Webpack
  • Vite
  • Vercel
  • Netlify
  • Bootstrap
  • ESlint
  • Prettier
  • Stylelint
  • GraphQL

Experience

  • 4.2025 - Present
    Remote

    Individual Entrepreneur Bel Sofi

    sofi-bel.netlify.app

    Frontend Developer

    (Self-employed)
    • Built user-facing features using React.js, TypeScript, React Hooks, and Chakra UI
    • Integrated with back-end services via GraphQL
    • Delivered both major features and small UX improvements
  • 7.2024 - 4.2025
    Remote

    Greenatom

    greenatom.ru

    Web Developer

    (Staff member)
    • Developed and maintained corporate websites and internal services using Bitrix, PHP, JavaScript, SCSS, and HTML
    • Participated in the development of 3 corporate websites and 6 internal services
    • Implemented responsive and accessible UI components
  • 7.2024 - 2.2025
    Remote

    Momentum

    www.givemomentum.com

    Frontend Developer

    (Contract)
    • Built user-facing features using React.js, TypeScript, React Hooks, and Chakra UI
    • Integrated with back-end services via GraphQL
    • Delivered both major features and small UX improvements
    • Proactively identified and reported bugs, tested functionality from an end-user perspective
    • Collaborated closely with designers, product managers, and engineers across teams
  • 10.2021 - 10.2022
    Remote

    Momentum

    www.givemomentum.com

    Frontend Developer

    (Freelance)
    • Participated in the development and maintenance of a portal for creating custom websites using a CMS approach.
    • Contributed to the development and maintenance of the company's website.
    • Took part in the development of a donation collection website.
    • Developed websites using HTML, CSS, JavaScript, React.js and Chakra UI.
    • Implemented website layouts based on Figma designs.
    • Tested and ensured website compatibility across various browsers and devices.
    • Cross-browser responsive web development.
  • 7.2021 - 10.2021
    On-site

    SMART WORLD

    smartworld.team

    Frontend Developer

    (Full-time)
    • Conducted refactoring for two websites and migrated them from a CMS system to Vue.js.
    • Implemented the use of the mobile-first approach within the company's web development processes.
    • Developed and implemented style guides within the company.
    • Participated in the development of materials for internal conferences.
    • Modified project designs to prioritize user experience (UX).
    • Implemented website layouts based on Figma designs.
    • Tested and ensured website compatibility across various browsers and devices.
    • Cross-browser responsive web development, with a mobile-first approach.
  • 5.2020 - 7.2021
    Remote

    what. AG

    what.digital

    Frontend Developer

    (Freelance)
    • Developed, updated, and maintained websites for renowned brands, educational institutions, government agencies, and online stores using CSS, HTML, JavaScript, and DjangoCMS.
    • Successfully participated in the development, updating, and maintenance of 11 projects during my employment.
    • Implemented website layouts based on Figma designs.
    • Tested and ensured website compatibility across various browsers and devices.
    • Cross-browser responsive web development, with a mobile-first approach.
  • 1.2021 - 4.2021
    Remote

    Effective Altruism

    eahub.org

    Frontend Developer

    (Volunteering)
    • Refactored the profile page using CSS, HTML, and JavaScript.
    • Improved the design and UX.
    • Implemented website layouts based on Figma designs.
    • Tested and ensured website compatibility across various browsers and devices.
    • Cross-browser responsive web development, with a mobile-first approach.

Education

  • Master of Software Engineering

    2022 - 2024

    National Research Tomsk Polytechnic University

  • Bachelor of Informatics and Computer Engineering

    2013 - 2017

    Tomsk State University of Control Systems and Radioelectronics

Last projects

Last certifications

  • React for modern web applications certificate
  • Competence Layout Designer - HTML, CSS, JavaScript certificate
  • PHP-first acquaintance certificate

References

Markus Amalthea Magnuson photo

Sofi worked on our front-end code (React/Next.js) as a contractor and was an incrediblyreliable collaborator who added a great amount of value to our users through large andsmall contributions. On top of being a diligent engineer with a curious mindset, Sofiis also proactive in finding and reporting bugs, asking good questions on code architecture,and testing functionality from an end-user perspective. Sofi was also a very well-likedmember of the team, and she communicated clearly about the work with all departments.I highly recommend Sofi as a front-end engineer – you are lucky to have her.

Markus Amalthea Magnuson

Co-founder/CTO @ Momentum

Sergey Fedus photo

I worked with Sofi at the same project for developing a front-end part. Sofi recommended herself as responsible and promising front-end developer dedicated the common cause and outcome. She was always ready to work hard to achieve the desired result and deliver the project on time. It was a pleasure to work with her!

Sergey Fedus

Full Stack WordPress Web Developer

Sergei Gordeichuk photo

I've worked with Sofi at what. and she helped us a lot with the variety of frontend tasks. She was responsible and focused on the result, so it was a pleasure to work with her. Her technical skills were improving daily and she was always ready to learn and improve her knowledge.

Sergei Gordeichuk

Head of Technology at what. AG