Full Stack Developer

Mykhailo Barsukov

Crafting digital experiences, one line of code at a time. Full‑stack developer with a passion for elegant solutions and continuous learning.

CV_Mykhailo_Barsukov.pdf

Front-End Development

Responsive mobile-first UIs, interactive SPAs, SEO-friendly solutions.

Crafting responsive, mobile-first interfaces with pixel-perfect precision,Building interactive single-page applications (SPAs) using modern JavaScript frameworks,Developing SEO-optimized, cross-browser compatible solutions with server-side rendering for maximum performance and reach

Next.js
React
Redux
Redux ToolKit
TypeScript
JavaScript
ES6
Webpack
React Router
React Query
React Hook Form
React Native
RNTL
React Testing Library
Jest
ESLint
Storybook
Material UI
Radix UI
Bootstrap
Tailwind CSS
HTML
CSS
Sass
i18next

Back-End Development

Scalable API design, efficient server solutions, secure authentication systems.

Designing scalable RESTful and GraphQL APIs for microservice architectures,Designing efficient PostgreSQL, MySQL schemas and implementing indexing strategies for optimized query performance,Implementing SOLID, DRY, and KISS principles,Developing secure authentication systems with JWT, OAuth, and role-based access control,Implementing comprehensive error handling and logging systems

Node.js
Express.js
NestJS
PHP
Laravel
Python
PostgreSQL
MySQL
MongoDB
Supabase
Redis
REST
GraphQL
JWT
OAuth
Stripe
LangChain
Nodemailer
WebSocket
Swagger

Leadership & Mentorship

Team communication, technical workshops, crisis management.

Bridging communication between technical teams and non-technical stakeholders for project success,Leading teams through technical challenges with strategic problem-solving and effective crisis management,Conducting technical workshops to keep teams updated on industry best practices,Developing and implementing coding standards and best practices to enhance code quality across all products

Scrum
Kanban
Jira
Slack
Google Meet
Microsoft Teams

DevOps

Docker containerization, CI/CD pipeline optimization, server performance tuning.

Containerizing applications with Docker for consistent and scalable deployments,Streamlining CI/CD pipelines with GitLab CI and automated webhooks for seamless, continuous deployments,Configuring Nginx and Apache servers for high-performance web hosting,Administering Linux servers with a focus on security, performance, and reliability

Git
Docker
Docker Compose
GitLab CI
GitHub Actions
AWS
Google Cloud
Nginx
Apache
Linux
Ubuntu
Debian
Arch Linux

CMS

Custom themes & plugins, performance optimization, headless WordPress & integrations.

Creating advanced custom themes and plugins to extend WordPress functionality, integrate third-party services and CRMs,Optimizing WordPress sites for speed and SEO performance,Implementing headless WordPress architectures with React frontend for enhanced performance,Developing custom Gutenberg blocks for drag-and-drop content management,Implementing multilingual tranlations using WPML and Polylang,Implementing advanced caching strategies and CDN integration for high-traffic sites

WordPress
OpenCart
Strapi
PHP
JavaScript
React
Gutenberg
WPML
Polylang
ACF
WooCommerce
Elementor
WP Rocket
ocStore

Optimizations

90+ PageSpeed scores, Core Web Vitals optimizations, performance audits.

Achieving 90+ PageSpeed scores through advanced web performance optimization techniques,Optimizing Core Web Vitals metrics (LCP, FID, CLS) for improved search rankings and user experience,Optimizing server response times through database query optimization and server-side caching,Conducting comprehensive web performance audits and implementing data-driven optimizations

Lighthouse
PageSpeed Insights
GTmetrix
WebPageTest
Chrome DevTools
Cloudflare
Redis
Memcached

Skills

Full-Stack Development

My skill set encompasses a range of technologies essential for full-stack development.

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Front-End Development

Responsive mobile-first UIs, interactive SPAs, SEO-friendly solutions.

Back-End Development

Scalable API design, efficient server solutions, secure authentication systems.

Leadership & Mentorship

Team communication, technical workshops, crisis management.

DevOps

Docker containerization, CI/CD pipeline optimization, server performance tuning.

CMS

Custom themes & plugins, performance optimization, headless WordPress & integrations.

Optimizations

90+ PageSpeed scores, Core Web Vitals optimizations, performance audits.

Work Experience

Career Milestones

A timeline of my career progression and notable accomplishments.

Full Stack Developer at Resense Agency

January 2025 – Present

Key Achievements

Engineered high-performance backend features utilizing complex SQL queries, significantly improving system response times.
Optimized database architecture for efficient management of 100k+ entries, resulting in enhanced application stability.
Implemented advanced file processing systems capable of handling large datasets while maintaining operational efficiency.
Created scalable data management solutions that maintain performance integrity under intensive usage conditions.

Technologies & Skills

Express
PostgreSQL
TypeScript
Sass
PHP
WordPress
OpenCart
Stripe
Docker
Nginx
Google Cloud

Full Stack Developer (JavaScript) at MoneyMade

Nov 2024 – Dec 2024

Key Achievements

Developed and customized an AI-powered SaaS platform, ensuring scalability and maintainability.
Implemented a robust user onboarding system utilizing Supabase authentication and real-time database subscriptions.
Implemented an AI-powered chat window and content editor using OpenCanvas, enabling rich text generation and enhancing user interaction capabilities.
Optimized application performance through strategic implementation of server/client components.

Technologies & Skills

NestJS
PostgreSQL
Supabase
Websocker
Next.js
React
Langchain
Stripe

Full Stack Developer (PHP) at The WhyKingz

Dec 2023 – Oct 2024

Key Achievements

Led a mission-critical project after an unexpected team change, resolving major security risks, hiring replacement developers, and ensuring client satisfaction under pressure.
Designed a custom solution for enhanced internal linking, featuring CSV import/export and admin panel controls, boosting SEO across 5 websites.
Developed a solution for filtering crawlers based on IPv6 address table data.
Automated complex solutions through content parsing, processing 100,000+ HTML files accurately within seconds.
Onboarded developers and planned the architecture for future projects.
Consistently demonstrated initiative in work processes and website improvements.
Educated colleagues through writing articles and delivering presentations; shared automation techniques with the team to improve overall efficiency.
Increased performance for websites by 20–30%, enhancing user experience and SEO scores.
Managed Nginx servers with a strong focus on security, investigating and implementing best practices to safeguard infrastructure.

Technologies & Skills

SEO Optimization
Performance
Project Management
Leadership
PHP
Laravel
WordPress
Python
MySQL
GraphQL
AWS
Docker
GitLab CI
Nginx
Apache

React Developer at Onix-Systems

Jul 2023 – Dec 2023

Key Achievements

Led the front-end development for an ERP system, impacting 400+ colleagues.
Initiated the refactoring of a legacy code base to implement more reliable state management of applications using cutting-edge technologies.
Ensured code quality with JEST and RNTL unit tests and documented using Storybook.
Integrated i18n translations for React components.

Technologies & Skills

Next.js
React
Redux ToolKit
TypeScript
Sass
JEST
ESLint
Storybook
i18next

WordPress Developer at Onix-Systems

Oct 2022 – Jul 2023

Key Achievements

Successfully managed development and client communication for an eCommerce site, achieving high customer satisfaction.
Boosted page load speed by 22% for a major blog website.
Introduced the implementation of AI tools to enhance developer productivity and experience.
Contributed to the development and release of an internal company plugin.
Led a site redesign swiftly due to a tight deadline, showcasing adaptability.
Conducted bug fixes and ensured site security.
Optimized for SEO and implemented multilingual translations.

Technologies & Skills

WordPress
JavaScript
Sass
PageSpeed Insights
Client communication

WordPress Developer at Self-employed

Jul 2021 – Feb 2022

Key Achievements

Developed and maintained business websites.
Designed responsive layouts for mobile and desktop.
Constructed a kitchen design application for customizable interiors.

Technologies & Skills

WordPress
JavaScript
CSS
Client communication

Resense AgencyJanuary 2025 – Present

MoneyMadeNov 2024 – Dec 2024

The WhyKingzDec 2023 – Oct 2024

Onix-SystemsJul 2023 – Dec 2023

Onix-SystemsOct 2022 – Jul 2023

Self-employedJul 2021 – Feb 2022

Full Stack Developer

Resense AgencyJanuary 2025 – Present

Key Achievements

Engineered high-performance backend features utilizing complex SQL queries, significantly improving system response times.

Optimized database architecture for efficient management of 100k+ entries, resulting in enhanced application stability.

Implemented advanced file processing systems capable of handling large datasets while maintaining operational efficiency.

Created scalable data management solutions that maintain performance integrity under intensive usage conditions.

Core skills

Express

PostgreSQL

TypeScript

Sass

PHP

WordPress

OpenCart

Stripe

Docker

Nginx

Google Cloud

Full Stack Developer (JavaScript)

MoneyMadeNov 2024 – Dec 2024

Key Achievements

Developed and customized an AI-powered SaaS platform, ensuring scalability and maintainability.

Implemented a robust user onboarding system utilizing Supabase authentication and real-time database subscriptions.

Implemented an AI-powered chat window and content editor using OpenCanvas, enabling rich text generation and enhancing user interaction capabilities.

Optimized application performance through strategic implementation of server/client components.

Core skills

NestJS

PostgreSQL

Supabase

Websocker

Next.js

React

Langchain

Stripe

Full Stack Developer (PHP)

The WhyKingzDec 2023 – Oct 2024

Key Achievements

Led a mission-critical project after an unexpected team change, resolving major security risks, hiring replacement developers, and ensuring client satisfaction under pressure.

Designed a custom solution for enhanced internal linking, featuring CSV import/export and admin panel controls, boosting SEO across 5 websites.

Developed a solution for filtering crawlers based on IPv6 address table data.

Automated complex solutions through content parsing, processing 100,000+ HTML files accurately within seconds.

Onboarded developers and planned the architecture for future projects.

Consistently demonstrated initiative in work processes and website improvements.

Educated colleagues through writing articles and delivering presentations; shared automation techniques with the team to improve overall efficiency.

Increased performance for websites by 20–30%, enhancing user experience and SEO scores.

Managed Nginx servers with a strong focus on security, investigating and implementing best practices to safeguard infrastructure.

Core skills

SEO Optimization

Performance

Project Management

Leadership

PHP

Laravel

WordPress

Python

MySQL

GraphQL

AWS

Docker

GitLab CI

Nginx

Apache

React Developer

Onix-SystemsJul 2023 – Dec 2023

Key Achievements

Led the front-end development for an ERP system, impacting 400+ colleagues.

Initiated the refactoring of a legacy code base to implement more reliable state management of applications using cutting-edge technologies.

Ensured code quality with JEST and RNTL unit tests and documented using Storybook.

Integrated i18n translations for React components.

Core skills

Next.js

React

Redux ToolKit

TypeScript

Sass

JEST

ESLint

Storybook

i18next

WordPress Developer

Onix-SystemsOct 2022 – Jul 2023

Key Achievements

Successfully managed development and client communication for an eCommerce site, achieving high customer satisfaction.

Boosted page load speed by 22% for a major blog website.

Introduced the implementation of AI tools to enhance developer productivity and experience.

Contributed to the development and release of an internal company plugin.

Led a site redesign swiftly due to a tight deadline, showcasing adaptability.

Conducted bug fixes and ensured site security.

Optimized for SEO and implemented multilingual translations.

Core skills

WordPress

JavaScript

Sass

PageSpeed Insights

Client communication

WordPress Developer

Self-employedJul 2021 – Feb 2022

Key Achievements

Developed and maintained business websites.

Designed responsive layouts for mobile and desktop.

Constructed a kitchen design application for customizable interiors.

Core skills

WordPress

JavaScript

CSS

Client communication

Achievements

Learning & Growth

Continuous learning is essential for staying current in web development. Here are my key certifications:

Typescript: The Complete Developer's Guide

Modern React with Redux

The Web Developer Bootcamp 2022

Feedback

Insights from collaborators and mentors.

"Mykhailo communicates effectively with colleagues and often takes on organizational responsibilities beyond his primary duties. Thanks to his initiative and quick decision-making, we successfully overcame a crisis during the launch of a Telegram bot."

Oleksii SavchukHead of Department

"Mykhailo is a professional in full stack development. He approaches work professionally and with attention to detail. Always offers different ways of solving problems, looks for non-standard approaches."

Maksim RiabchenkoTeam Lead

"I can only say that he is a professional in his field! The solutions he brought to our projects were very useful, his approach and influence on the team was at a high level! The quality and speed with which he approached the projects was at the level of a senior developer."

Stanislav ZhehlovFull-Stack Developer

Contact Me

Let’s Connect

I'm open to discussing new projects, sharing ideas, or potential collaborations.