Contact information

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Education

Secondary

Knowledge and skills

• Доброзичливість
• HTML
• JavaScript
• Git
• React
• SASS
• Figma
• GitHub
• TypeScript
• Redux
• Node.js
• Webpack
• SQL
• Next.js

Language proficiencies

English — average

Additional information

Phone: [open contact info](look above in the "contact info" section)
Email: [open contact info](look above in the "contact info" section)
LinkedIn: david-diachuk
Telegram: @david_diachuk
GitHub: david-dya4yk


WORK EXPERIENCE
Company: Entree - https://entree-site.vercel.app
Period: Dec 2023 – Jun 2025 (1.7 y)
Description: online-menu SAAS startup for restaurants and cafes. The project
consist of 3 applications: admin panel (for restaurant administration), client app
(for restaurant customers) and mobile application (for waiters)
Stack: Next.js, TypeScript, SCSS, Apollo Client, GraphQl
Role:
Built the full user interface and logic for order creation and tracking in a venue-
focused ordering platform
Developed a responsive interface for mobile and tablet devices, ensuring ease
of access across devices, and added accessibility elements (WCAG standards)
to support users with disabilities.
Implemented new features like: takeaway orders, table booking, waiter reviews
Achievements and Results:
App loading speed increased by 35%
We have increased the Lighthouse accessibility score to 90+ on the main
pages
Reduced production build size by 25%