Denis Zaitsev
- Frontend Developer

Contact

Address
Israel
E-mail
[email protected]
Links

Skills

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

Languages

Russian:
Native
English:
High level
Hebrew:
Beginner

Certificates

Summary

Hi! I'm an experienced Full Stack Developer. I have developed several cross-platform mobile applications usingReact Native, as well as multiple Full Stack web applications usingReactand 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 inUX and continue to expand my knowledge in this field.

Technologies

  • #TypeScript
  • #React
  • #Redux
  • #MobX
  • #NodeJS
  • #HTML
  • #CSS
  • #BEM
  • #Docker
  • #Linux
  • #Git

Experience

Lightricks- Senior Full Stack (Frontend oriented) Developer

Mar 2025 - Current Job

  • Have been a significant part of implementing the following features:
    • Timeline Editor (Implementation, Performance optimizations)
    • Shot Control (End to End implementation)
    • Retake (Gen Space integration)
  • Mentored student and junior developers
  • Formalized and popularized coding rules
  • Added several AI related workflows

Sunflower LTD - Senior Full Stack Developer

Jun 2023 - Feb 2025 (1 year 9 months)

  • Made a significant contribution to launching a project that was delayed by six months.
  • Implemented numerous architectural changes to accelerate the release of new features by almost 50%.
  • Developed a game recommendation system based on matching game parameters, increasing user engagement.
  • Designed and developed a reusable payment service for web and mobile applications using iframes/webviews.
  • Engaged in the development of key products including the main web project, mobile application, and an analytics system with BigQuery integration, demonstrating versatility and proficiency across diverse technological domains.
  • Added various animations to elements to engage users and enhance their user experience and enjoyment.
  • Significantly improved the similarity between the Mobile application and the Web version

Yandex- Senior Frontend Web Developer

May 2021 - Jun 2022 (1 year 2 months)

  • Collaborating with the "Yandex Garage" team, we created a new project called "Commodity Vertical" from scratch. I developed several UI components, and we successfully launched it into production within four months.
  • I have developed an advertising carousel block for the "Commodity Vertical" and "Yandex Market" on the search portal, adhering to best practices for code performance, which is crucial for search engine results. I've taken into account the large audience of the portal and the prominent position of the carousel at the beginning of the page.
  • Implemented several UX improvement experiments in the "Yandex Market" project, considering the high traffic volume and focusing on increasing sales conversion rates.
  • Additionally, I have conducted code reviews and actively collaborated with developers, designers, and stakeholders to discuss tasks, share expertise, and ensure high-quality code implementation.
  • Organized two team-building events: the first involved enduro moto bikes, and the second featured archery bow firing.

Tatikoma Systems- Senior Full Stack Developer, Team Lead

Feb 2018 - Apr 2021 (3 years 3 months)

  • Led and developed multiple React-Native mobile apps and Web projects, both independently and within a team of developers. Designed and developed the "Learning together" portal. Participated in the development of three public services portals. Additionally, developed the company's WordPress and contributed to other projects.
  • Negotiated contracts to facilitate seamless communication and collaboration between the backend and frontend teams working on various applications.
  • Implemented comprehensive code review processes and unit testing to uphold industry best practices and ensure the consistent maintenance of high-quality code standards.
  • Translated customer requirements into actionable tasks for other developers as a Lead within the company.
  • Grew from being a regular solo developer to becoming a frontend team leader.

Freelance - Full Stack Developer

... 2016 - Feb 2018 (2 years)

  • Successfully completed various projects independently and collaboratively with teams of developers.
    • Internal Payroll calculation service app (Involving complicated algorithms, generation, and downloading of preliminary reports and payment statements)
    • Social Network Mobile App (Incorporating features such as chat and news)
    • ATM Service Engineer Mobile App (Including ATM location mapping, after-service reports, and malfunction photo reports)
    • Cow hoof disease collection system (Providing an accessible UI in challenging circumstances)
    • Gas fields construction process monitoring system (Designing a UI for displaying a large variety of media content)
  • Collaborated closely with designers and customers to understand their business needs and leverage their input in developing user interface layouts and components. Prioritized the best user experience (UX) practices to ensure the highest possible conversion rates for call-to-action (CTA) elements.