PHP/WordPress Developer

Serhii K

Information

Available hours \ week
40 h/w
Seniority level
Senior
Years of experience
15 yrs.
Location
Ukraine, Lviv
Timezone
(GMT+02:00) Kyiv

Languages

Ukrainian
Fluent (C2)
English
Upper-Intermediate (B2)

About

Serhii is an experienced PHP/WordPress Developer with 13 years in full-stack development. He specializes in PHP and JavaScript, alongside WordPress frameworks, effectively managing project planning, architecture, and integrations while optimizing performance. His background includes developing scalable e-commerce platforms and implementing RESTful APIs. He has also collaborated closely with designers to enhance UI/UX. He holds degrees in relevant fields with additional certifications in key technologies.

Experience

Stock Analysis Platform

Full-stack Developer

About the Project

This project is designed to parse and display daily stock prices from external service, as well as collect analytical forecasts from various platforms. It performs calculations based on this data and shows statistics on the accuracy of analysts. Users can access the platform with a free account or choose from several subscription levels, each offering different levels of access. The subscription model is implemented with different features depending on the paid tier. The platform is built entirely in Vanilla PHP

Responsibilities

- Planning and estimating the project; - Project improvement; - Project support;

Skills & technologies

Fashion e-commerce company

Full-stack Shopify Developer

About the Project

The goal of this project was to build and maintain a scalable e-commerce platform for a fashion brand using Shopify. The store is focused on selling seasonal clothing collections and promotional capsule drops. The custom Shopify theme was developed from scratch using Liquid, HTML, SCSS, and JavaScript, fully optimized for performance and mobile responsiveness. The platform features advanced product filtering, dynamic collection pages, custom upsell and cross-sell logic, and full integration with Shopify Payments, Klaviyo for email marketing, and Google Analytics 4 for conversion tracking. Custom Shopify apps were developed to extend the platform’s core functionality, including automatic inventory sync, referral programs.

  • Fashion
  • E-commerce

Responsibilities

- Full project planning, technical architecture, and delivery estimation; - Custom Shopify theme and private app development; - Integration with third-party services (Klaviyo, GA4, etc.); - Creating reusable components and sections via Liquid; - Performance optimization; - Collaboration with the designer on UI/UX implementation and responsiveness; - Close coordination with the Project Manager for sprint planning and updates;

Skills & technologies

Medical CBD Website

Senior Full-Stack Developer

About the Project

This project was an e-commerce website that sells medical CBD worldwide with the main market in the US.

Responsibilities

- Full project structure and architecture; - Time & Cost estimations; - Build database structure; - Project improvement; - Project support;

LMS

Senior Full-Stack Developer

About the Project

The main purpose is to use and add to the LMS functionality of the LearnDash plugin. Only content subscribers who have paid monthly or annual subscription to access the main content and have access to this content by accessing internal points. These points are accrued monthly or can be bought additionally. Subscriptions also have different access levels. The subscription functionality is implemented by completing the MemberPress plugin functionality.

Responsibilities

- Planning and estimating the project; - REST API integrations; - Project improvement; - Project support; - New features and algorithms implementation.

Fashion

Full-stack Developer

About the Project

The purpose of this project is creating a clothes catalogue that's being filled by users through a google chrome extension or the website front-end. Users have the functionality to add various cloth collections, upload pictures to those collections and add a store referral link in the cloth photo description. Also, the project had a forum implemented.

Responsibilities

- Planning and estimating the project; - Project improvement; - Project support;

Medical Project

Senior Full-Stack Developer

About the Project

The concept of the customers’ project is to arise from a few comments heard while radiologists were studying for their CAQ in Neuroradiology

Responsibilities

- Full project structure and architecture; - Time & Cost estimations; - Build database structure; - Scalable environment.

Culinary project

Full-stack Developer

About the Project

Place where people can book cooking classes, food tours around the world, nutrition courses, and learn something new about food from the blog. Users can attend online courses on the website.

Responsibilities

- Planning and estimating the project; - Project improvement; - Project support;