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Hi, I’m Serhii Diachenko, a frontend engineer with 9+ years of experience delivering high-quality UI for SaaS, e-commerce, and custom platforms. I focus on clean, maintainable code, performance, and UX, collaborating closely with design and backend teams to create production-ready solutions. I thrive in product-driven environments, embrace component-driven development, and enjoy turning design systems into polished, responsive interfaces. My toolkit includes Angular, React, Next.js, Remix, NestJS, Astro, Tailwind CSS, Sanity CMS, and Shopify integrations, and I love streamlining performance and CRO for high-traffic sites.…Hi, I’m Serhii Diachenko, a frontend engineer with 9+ years of experience delivering high-quality UI for SaaS, e-commerce, and custom platforms. I focus on clean, maintainable code, performance, and UX, collaborating closely with design and backend teams to create production-ready solutions. I thrive in product-driven environments, embrace component-driven development, and enjoy turning design systems into polished, responsive interfaces. My toolkit includes Angular, React, Next.js, Remix, NestJS, Astro, Tailwind CSS, Sanity CMS, and Shopify integrations, and I love streamlining performance and CRO for high-traffic sites.

Serhii Diachenko

Front-End Developer, Web Developer, Full Stack Developer, +2

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Hi, I’m Serhii Diachenko, a frontend engineer with 9+ years of experience delivering high-quality UI for SaaS, e-commerce, and custom platforms. I focus on clean, maintainable code, performance, and UX, collaborating closely with design and backend teams to create production-ready solutions. I thrive in product-driven environments, embrace component-driven development, and enjoy turning design systems into polished, responsive interfaces. My toolkit includes Angular, React, Next.js, Remix, NestJS, Astro, Tailwind CSS, Sanity CMS, and Shopify integrations, and I love streamlining performance and CRO for high-traffic sites.…Hi, I’m Serhii Diachenko, a frontend engineer with 9+ years of experience delivering high-quality UI for SaaS, e-commerce, and custom platforms. I focus on clean, maintainable code, performance, and UX, collaborating closely with design and backend teams to create production-ready solutions. I thrive in product-driven environments, embrace component-driven development, and enjoy turning design systems into polished, responsive interfaces. My toolkit includes Angular, React, Next.js, Remix, NestJS, Astro, Tailwind CSS, Sanity CMS, and Shopify integrations, and I love streamlining performance and CRO for high-traffic sites.

Available to hire

Hi, I’m Serhii Diachenko, a frontend engineer with 9+ years of experience delivering high-quality UI for SaaS, e-commerce, and custom platforms. I focus on clean, maintainable code, performance, and UX, collaborating closely with design and backend teams to create production-ready solutions.

I thrive in product-driven environments, embrace component-driven development, and enjoy turning design systems into polished, responsive interfaces. My toolkit includes Angular, React, Next.js, Remix, NestJS, Astro, Tailwind CSS, Sanity CMS, and Shopify integrations, and I love streamlining performance and CRO for high-traffic sites.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Ukrainian

Fluent

Russian

Fluent

English

Intermediate

Work Experience

Frontend Developer at Freelance (Modern Content Platforms)

February 1, 2024 - Present

Developed high-performance websites using Astro and Tailwind CSS with Sanity CMS integration; provided cross-framework support for Angular and React projects; focused on performance, accessibility, and maintainable code.

Frontend Developer / Shopify Developer at Leangenix LDA

February 1, 2022 - February 1, 2024

Built a customer feedback voting tool and AI-powered content-generation features. Contributed to a Cancer Detection Platform and delivered high-end Shopify themes/apps focusing on CRO and performance.

Frontend Developer / Shopify Developer at Starlight Management Group

September 1, 2019 - February 1, 2022

Developed Shopify apps/themes (React/Remix) for merchants, and built internal service platforms and mapping features. Focused on performance, user experience, and CRO.

Frontend Developer at SSA Group

April 1, 2019 - September 1, 2019

Logistics Management System: Designed and implemented a large-scale platform for vehicle tracking and route optimization, plus a cross-platform Corporate Reporting App for internal use, with real-time data visualization.

Frontend Developer at Starlight Management Group

December 1, 2017 - April 1, 2019

European Service Platforms and Charity Platforms; implemented complex mapping features with Google Maps API; contributed to MVPs for internal startups.

Frontend Developer at Unibrix

July 1, 2021 - November 1, 2021

Netflix Internal Production Management System: worked on UI modules for collaboration between production teams; used NgRx for state management; built tools for media assets, marketing materials, and production workflows.

Frontend Developer at Webquali

February 1, 2016 - April 1, 2017

Taxi App, Museum Guide, Lotto App, and Shipbuilding Catalog; delivered high-performance UI, real-time tracking, beacons integration, and complex UI with animations.

Frontend Developer at Default Value

July 1, 2017 - December 1, 2017

Large-Scale Online Game: maintained and scaled a web-based game; implemented high-performance SVG animations and hardware integration.