About me

Hello there! 👋 My name is Oleh and I'm a Senior Full-Stack Developer and DevOps Engineer originally from Ukraine with over 9 years of experience delivering scalable, secure, and high-performance applications across a wide range of industries — especially eCommerce.

Primary Focus

  • Web development icon

    Web Design & Development

    Creating attractive, easy-to-use websites that work well for businesses and individuals online.

  • frameworks icon

    Full-Stack Solutions

    Developing scalable web applications using JavaScript Frameworks, SQL Databases, C# and PHP.

  • mobile app icon

    Mobile Apps & Games

    Creating and developing engaging mobile apps and games for iOS and Android devices.

  • marketing icon

    Marketing & SEO

    Using SEO and marketing strategies to boost online visibility and promote products or services.



Languages

Coding Languages

  • JavaScript
    100%
  • Ruby
    95%
  • PHP
    95%
  • C++
    80%
  • Elixir
    80%
  • Rust
    70%

Human Languages

  • English
    Fluent
  • Ukrainian
    Native
  • Russian
    Native

Development Skills


  • Ruby on Rails
  • PHP
  • Laravel
  • Shopify
  • React
  • Next
  • Vue.js
  • Node
  • TypeScript
  • C++
  • MySQL
  • Elixir
  • AWS
  • Azure
  • Linux
  • Git
  • Docker

Strengths

  • finances

    Creative Code

    With great attention to detail, I build projects that are both visually stunning and flawlessly functional.

  • music

    Complete Solutions

    I take projects from concept to deployment, developing both the front-end and back-end.

  • photography

    Future Focused

    I leverage emerging technologies like Web3 and AI to build innovative, future-proof solutions.

  • traveling

    Global Fluency

    I worked with dozens of international clients and perfectly captured their vision.

Latest Contributions



My Projects

  •

    Lets.events

    FullStack

    Team Project

    Ruby on Rails | Sass, Haml

    Preview

  • One Class

    FullStack

    Team Project

    Ruby on Rails | Next.js

    Preview

  • Gruppo Euromobil

    FullStack

    Team Project

    Laravel Livewire | Alpine.js

    Preview

  • Cartpinion ‑ Reduce Abandons

    Shopify App

    Team Project

    Laravel | Vue.js

    Preview

  • Safran DSI

    Backend

    Team project

    CraftCMS | PHP

    Preview Figma

  • TheCrypto.Wiki

    FullStack

    Team Project

    Next.js | React.js | API's

    Preview

  • MyFitPhoto AI

    Frontend + AI Integration

    Team Project

    React.js | Chakra UI

    Preview

  • Clonings AI

    Frontend

    Team Project

    React.js | Chakra UI

    Preview

  • FashionSwap App

    Frontend

    Team Project

    React.js | Chakra UI

    Preview Figma

  • Jewellery ecommerce

    Frontend + API Integration

    Team Project

    Shopify | PHP

    Preview

  • Inventory Management App

    Frontend

    Team Project

    React.js | Chakra UI

    Preview Figma

  • MyBestWishes AI

    Frontend + AI Integration

    Team Project

    React.js | Chakra UI

    Preview Figma

  • MyWorkPhoto AI

    Frontend + AI Integration

    Team Project

    React.js | Chakra UI

    Preview Figma

  • Bayer USA Health App

    Frontend

    Team Project

    Drupal | PHP | CSS

    Preview

  • Personal Portfolio

    Frontend

    Solo Development

    JavaScript | CSS | HTML

    Preview GitHub

  • BerliNEW Android App

    Complete Build

    Solo Development

    Wordpress | Android SDK

    Preview

Experience


Intrasect

Senior Software Engineer

Feb 2022 – Apr 2023 | Warsaw, Poland

  • • Developed and maintained a microservice-based architecture emphasizing API-first design for modular scalability.
  • • Led the development and submission of a public Shopify app to the Shopify App Store, handling OAuth, Admin API integration, and secure token exchange with merchant stores.
  • • Refactored and optimized the Ruby on Rails billing system, significantly improving maintainability and performance.
  • • Designed and implemented CI/CD pipelines, accelerating deployment cycles and improving release quality.
  • • Integrated international domain name (IDN) support across platform modules to enhance global accessibility.

Uran Company

Software Developer, AWS DevOps Engineer

Jan 2021 - Dec 2021 | Riyadh, Saudi Arabia

  • • Delivered full-stack solutions and infrastructure automation for high availability production systems.
  • • Architected and developed a modern admin panel using Laravel and Tailwind CSS.
  • • Successfully launched 4 private internal apps and 2 public-facing web applications supporting key business operations.
  • • Designed and implemented CI/CD pipelines, accelerating deployment cycles and improving release quality.
  • • Built and deployed a custom private Shopify app tailored for merchant operations, including real-time sync with the Shopify backend and order processing logic.

ESSOTEC

FullStack Developer / DevOps Engineer

Oct 2017 - Feb 2021 | Kherson, Ukraine

  • • Managed, secured, and optimized Linux-based infrastructure to ensure system reliability and performance.
  • • Led the development and submission of a public Shopify app to the Shopify App Store, handling OAuth, Admin API integration, and secure token exchange with merchant stores.
  • • Developed and maintained full-stack web applications using Ruby on Rails, PHP, and React, supporting internal tools and client-facing platforms.
  • • Automated deployment workflows and server provisioning using CI tools, enhancing development productivity and reducing manual errors.
  • • Built and deployed scalable infrastructure solutions across AWS, Azure, and Google Cloud Platform (GCP).
  • • Proactively monitored and maintained application services, minimizing downtime and ensuring consistent environment performance.

Education

Kherson National Technical University

Bachelor of Computer Science (BCompSc)

Sep 2011 - Sep 2016 | Kherson


Velyka Oleksandrivka Regular School of I-III degrees №1

General School education

2000-2011 | Kherson


My Certificates



Technical Competence

  1. Certificate of Angular

    Studysection E-learning

  2. Edchart Certified Laravel Developer Subject Matter Expert

    Edchart



Contact

Email:


Schedule Video Call with me:



Socials:


Support my work:


With every small donation, you contribute to hostings, domains and other essential costs. All my work which is made public on GitHub or Figma is open source and free for everyone to use.

Sponsor on GitHub