Senior Shopify Full Stack Developer

Transforming Ideas into Solutions

I'm Vladyslav Diachenko, a results-driven Shopify app and theme developer with over 8 years of extensive experience designing, developing, and optimizing custom Shopify themes and apps. Skilled in building scalable, performant ecommerce solutions leveraging Shopify APIs, Liquid, JavaScript, and modern frameworks. Passionate about improving user experience, streamlining store management, and integrating third-party services to enhance functionality. Strong collaborator and mentor with a track record of delivering innovative solutions on time and on budget.

My skills

Making e-Commerce Websites with modern technologies

Trustworthy cooperation, results beyond expectations

JavaScript

TypeScript

HTML

CSS

Shopify CLI

Shopify Theme

Shopify App

Shopify Liquid

Ruby

React

Redux

jQuery

Next.js

Angular

Vue

Material UI

Sass

Tailwind CSS

Figma

GitHub

PHP

REST API

Graphql

MongoDB

MySQL

PostgreSQL

Prisma

Firebase

AWS

Node.js

Express.js

Python

Nginx

Docker

Professional Experience

Senior Shopify Developer

Perform

03/2025 - 05/2025 | Atlanta, Georgia, Remote

Developed Order Gift, a custom Shopify app built with Gadget, designed to automate free gift logic based on cart conditions. The app listens to checkout and order events, evaluates gift eligibility, and programmatically adds or removes gift products using the Shopify Admin API, ensuring a smooth and accurate gifting experience
Architected and deployed advanced filtering and search functionality for a large apparel retailer database, enabling a 30% faster product discovery rate and becoming team's lead expert on UI design.
Optimized website performance and resolved technical issues to enhance user experience.

Shopify Developer

BalkanByte Systems

2022 - 2023 | Bulgaria

Architected and deployed advanced filtering and search functionalities, enhancing product discovery by 30% and establishing leadership in UI design.
Transformed e-commerce interfaces into visually compelling brand experiences, achieving 95% client satisfaction through custom animations and interactive elements.
Developed upsell and bundle functionalities from scratch, streamlining product selection without third- party applications.
Created custom applications utilizing Shopify's discount features with GraphQL and JavaScript, improving user experience.
Collaborated with cross-functional teams to implement innovative digital marketing strategies, driving user engagement.

Shopify Frontend developer

WeDamnSure Shopify agency

2020 - 2022 | Germany

Enhanced conversion rates by 30% by implementing Conversion Rate Optimization (CRO) and A/B testing with the Intelligem app, alongside integrating Google Tag Manager for improved tracking and analytics.
Developed and deployed checkout extensions and customer account extensions for Shopify Plus stores using Remix and GraphQL API.
Applied responsive design principles to create engaging, high-performance user interfaces that improved usability across all devices.
Collaborated with key stakeholders to align technical implementations with business goals, ensuring timely and successful project delivery.

Shopify Web Developer

MamaMary Worldwide

2018 - 2020 | Italy

Built and maintained custom Shopify themes using Liquid, HTML, CSS, and JavaScript, enhancing storefront aesthetics and functionality.
•Integrated third-party APIs and plugins to extend platform capabilities and streamline operational workflows.requirements into efficient front- end solutions.
Worked closely with designers, developers, and project managers to implement front-end solutions aligned with business objectives.
Provided strategic insights and technical recommendations in team discussions to optimize development efficiency.