Temkaiev Sergii
@temkaievsergii
Senior Frontend developer specializing in Shopify, React and performance-driven ecommerce solutions.
UkraineWhat I'm looking for
I am a senior frontend developer with 7+ years focused on Shopify, headless and modern React-based storefronts, delivering measurable business results such as 70% feature-driven growth and 20% improved sales-to-closing ratios. I lead teams, act as a technical lead, and take full responsibility for project delivery while collaborating closely with stakeholders.
My work spans Shopify theme and app development, checkout and admin extensions, performance optimization, and reusable component libraries using Next.js, React, TypeScript and TailwindCSS. I prioritize clean standards-based code, agile practices, and continual UX/CRO improvements to increase conversions and maintainable products.
Experience
Work history, roles, and key accomplishments
Senior Shopify Developer
Liquify Designs
Mar 2023 - May 2024 (1 year 2 months)
Led Shopify theme, app and storefront development and implemented new features that drove 70% growth in one year and improved sales-to-closing ratio by 20%. Coordinated with PMs and clients to deliver UX/CRO, checkout and speed optimizations.
Senior Frontend Developer
Epic Design Labs
May 2021 - Oct 2023 (2 years 5 months)
Led a 10-person development team and delivered a major construction project in under six months while controlling project workflow and budget as technical lead.
Senior Shopify Developer
RAMMP IT Solutions Pte Ltd
Jul 2021 - Mar 2023 (1 year 8 months)
Designed dynamic, browser-compatible pages and built reusable React components and front-end libraries while recommending and integrating third-party Shopify apps to improve user experience.
Senior Frontend Developer
Scoutside
Aug 2021 - Dec 2022 (1 year 4 months)
Implemented ongoing website revision procedures, established site layout and UI using accepted coding standards, and worked with PMs and clients to finalize functional specifications.
Shopify Developer
Juno Ecommerce
Dec 2019 - Jun 2021 (1 year 6 months)
Provided end-to-end Shopify solutions and coordinated a small team to deliver projects, improving reporting accuracy by 4% and overseeing requirements through implementation.
Frontend Developer
Shopify Partners
May 2016 - Aug 2019 (3 years 3 months)
Delivered 10 products to clients across 20 countries and created and maintained multiple web applications for domestic and international clients, meeting two-month delivery targets.
Education
Degrees, certifications, and relevant coursework
TKTaras Shevchenko National University of Kyiv
Bachelor of Science, Computer Science
2013 - 2016
Bachelor's degree in Computer Science from Taras Shevchenko National University of Kyiv completed between 2013 and 2016.
Tech stack
Software and tools used professionally
Availability
Location
UkraineAuthorized to work in
Job categories
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