Contact information

The job seeker has entered a email and LinkedIn.

You can get this candidate's contact information from https://www.work.ua/resumes/9625374/?puid=68657

Work experience

Full stack developer

from 04.2024 to 05.2025 (1 year 1 month)
NDA, Дистанційно (IT)

Responsibilities:
- Developed and maintained a CRM system (B2B/SaaS) for managing service center staff operations — from interface design to implementing business logic.
- Optimized the document printing microservice to enhance performance and expand functionality for internal users.
- Refactored legacy code to improve system stability, readability, and maintainability.

Achievements:
- Improved CRM performance by 20% through a complete redesign of the client side using Material UI and modern UX patterns.
- Standardized UI components, reducing duplication and accelerating the development of new features.
- Automated request processing workflows, cutting down manual operations and reducing handling time by 30%.
- Decreased bug count by 70% by rewriting critical legacy modules.
- Halved the document generation time by introducing TypeScript, restructuring the microservice architecture, and boosting overall performance.

Stack: JavaScript, TypeScript, React, Node.js, Express.js, PHP (Yii2), Docker, MySQL

Frontend Developer

from 08.2022 to 04.2024 (1 year 8 months)
Extrachain, Дистанційно (IT)

Мій linkedin - [open contact info](look above in the "contact info" section)
Мій телеграм https://t.me/kusakinvova
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Responsibilities:
- Designed and developed frontend architecture for two multilingual social networks with a focus on scalability and high performance.
- Conducted code reviews to ensure quality, readability, and adherence to team standards.
- Participated in technical interviews for developers joining the team and related internal projects.

Achievements:
- Built the frontend architecture of a social network from scratch, ensuring stable performance under high load.
- Implemented a real-time chat using Socket.IO for instant messaging between users.
- Integrated fiat and cryptocurrency payment systems, providing flexible monetization options.
- Delivered core social network modules, including authentication, registration, referral program, monthly subscription, donations, and post creation/editing.
- Migrated the project to Next.js, adapting the architecture for server-side rendering (SSR) and updated business logic.

Stack: React, Next.js, JavaScript (ES6), TypeScript, Redux Toolkit, RTK Query, Socket.IO, SCSS, ESLint, HTML5, CSS3, Sass

Full stack developer

from 04.2017 to 07.2022 (5 years 3 months)
TeleTrade, Київ (IT)

Responsibilities:
- Developed and enhanced company websites, including building new sections and improving user experience.
- Created modules, plugins, components, and templates for various CMS platforms.
- Developed and maintained Telegram and Viber bots to automate customer interactions.
- Configured and maintained company web hosting servers.

Achievements:
- Optimized website performance by rewriting UI using functional React components, improving maintainability and speed.
- Built over 10 multilingual websites from scratch using PHP, JavaScript, WordPress, Drupal, and 1C-Bitrix.
- Integrated CRM systems with all corporate websites to automate client data collection.
- Added interactive stock and currency charts to websites, enhancing visual analytics (JavaScript).
- Created a paid messaging service for the Telegram bot using Python.
- Enabled real-time display of currency and stock charts directly within the Telegram bot (Python).
- Developed a product card generator with QR codes and barcodes from Excel files (Python).
- Redesigned websites and added new features using Symfony 2.7.
- Set up and configured 3 servers for reliable corporate hosting.
- Developed and refactored several Vue components, improving code readability and reusability.

Stack: React, JavaScript (ES6), TypeScript, Vue.js, jQuery, CSS3, Sass, HTML5, PHP (CMS, Symfony), Python (Django), Node.js, PostgreSQL, MySQL, Docker, Docker Compose, LAMP, Git, Mercurial (Hg), Webpack, ESLint, Bash

Full stack developer

from 07.2014 to 03.2017 (2 years 8 months)
Freelance, Дистанційно (IT)

Responsibilities:
- Developed, maintained, and enhanced websites of varying complexity for clients across different industries.
- Created modules, plugins, components, and templates for popular CMS platforms.
- Administered and provided technical support for websites, including hosting and domain configuration.
- Performed SEO optimization, including technical audits, page speed improvements, and structured data implementation.
- Integrated websites with CRM systems, third-party services, and APIs (e.g., contact forms, data submission).
- Set up web analytics tools such as Yandex.Metrica and Google Analytics, including goal and event tracking.

Stack: JavaScript (ES6, jQuery), CSS3, HTML5, Bootstrap, Materialize, PHP (1C-Bitrix, Joomla, WordPress, Drupal, Simpla), MySQL, Git, Bash, LAMP

Full stack developer

from 03.2013 to 06.2014 (1 year 3 months)
STIB, Донецьк (IT)

Responsibilities:
- Developed, maintained, and supported the company's websites.
- Created custom modules, plugins, components, and templates tailored to specific business needs.
- Supported and enhanced the internal "Ticketing System" for a basketball team, adding new features and improving UX.

Achievements:
- Implemented a bonus system in the "Ticketing System," increasing user engagement and repeat purchases.
- Completed specialized training courses, enabling the company to achieve certified partner status (specify the partner if you'd like to highlight it further).
- Developed and launched a product rating system, enhancing user engagement and interaction with content.

Stack:
JavaScript, jQuery, CSS, HTML, PHP (WordPress, 1С-Bitrix, Drupal), MySQL

Education

Національний технічний університет

Компьютерні науки та технології, Донецьк
Higher, from 2005 to 2011 (6 years)

Knowledge and skills

• React
• JavaScript
• HTML
• CSS
• SASS
• Redux
• RTK Query
• JQuery
• Git
• TypeScript
• WordPress
• PHP
• Next.js
• CSS Flexbox
• CSS Grid Layout
• Python
• Figma
• GitHub
• Node.js
• SQL
• Express.js
• MySQL

Language proficiencies

• Ukrainian — fluent
• English — average
• Russian — fluent

Additional information

I live in Turkey, ready to relocate.