Denis Zaitsev
- Frontend Developer




  • TypeScript
  • JavaScript
  • React
  • React Native
  • Redux
  • Node.js
  • Express.js
  • REST
  • HTML
  • CSS
  • SASS
  • Bootstrap
  • Material UI
  • Linux
  • Git
  • Docker
  • SQL
  • PostgreSQL
  • MongoDB



High level


I'm a Full Stack Developer with over 7 years of experience. I have developed several cross-platform mobile applications using React Native, as well as multiple Full Stack web applications using React and Node.js.

While I am capable of building full-stack applications, my true passion lies in the frontend part of development. I find working with graphical interfaces very satisfying, particularly in making them more user-friendly. To that end, I have completed several courses in UX and continue to expand my knowledge in this field.


  • #TypeScript
  • #FlowJS
  • #React
  • #Redux
  • #NodeJS
  • #HTML
  • #CSS
  • #BEM
  • #Linux
  • #Git
  • #StoryBook


Yandex - Senior Frontend Web Developer

May 2021 - Jun 2022 (1 year 2 months)

  • Development: Developed responsive and user-friendly UI widgets, product components, and conducted comprehensive testing and debugging to ensure a smooth, error-free user experience across various devices and platforms.
  • Code quality: Conducted thorough code reviews to ensure adherence to best practices and maintain high code quality.
  • User interfaces: Worked closely with UI/UX designers and stakeholders to transform wireframes into visually appealing web components for various projects.
  • Teamwork: Worked closely with team members to divide tasks, set priorities, and coordinate efforts, optimizing project timelines and delivering results that met or exceeded client expectations.
  • Specific products: Contributed to the "Search Portal, Market and Commodity vertical" projects, focusing on interface elements for product search pages and product card pages.

Tatikoma Systems - Senior Full Stack Developer, Team Lead

Feb 2018 - Apr 2021 (3 years 3 months)

  • Development: Led and developed a various mobile app and web projects independently and within a team of developers.
  • Code quality: Implemented comprehensive code review processes to uphold industry best practices and ensure the consistent maintenance of high-quality code standards.
  • Recruiting: Provided technical expertise throughout the recruitment process, playing a key role in preparing and conducting code interviews.
  • Collaboration: Negotiated contracts to facilitate seamless communication and collaboration between the backend and frontend teams working on various applications.
  • Leadership: Translated customer requirements into actionable tasks for other developers as a Lead within the company.
  • Specific products: Led development and support for multiple React Native mobile apps. Created "Learning together" portal. Developed public services portal. Also developed the Company's WordPress website and contributed to other projects.

Freelance - Full Stack Developer

... 2016 - Feb 2018 (2 years)

  • Development: Successfully completed various projects independently and collaboratively with teams of developers.
  • User interfaces: Collaborated closely with both designers and customers to understand their business needs, leveraging their input to develop interface layouts that prioritize the best user experience (UX) practices
  • Specific products: Payroll calculation service (Hard algorithms, generation and downloading of preliminary reports and payment statements), Social Network Mobile App (Chat, News), Mobile App for ATM Service Engineer (ATM location mapping, after-service reports, and malfunction photo reports)