Daniel Sulkowski

About Daniel Sulkowski

I help businesses migrate to Shopify from WooCommerce and other platforms, build stores from scratch, and develop custom Liquid sections from Figma or Adobe designs. I specialize in PageSpeed, Core Web Vitals optimization and ongoing support for existing stores.

Services and pricing

• Store migrationPrice on request
• Store build or redesignPrice on request
• Theme customizationPrice on request
• Website audit and optimization strategyPrice on request
• Site performance and speedPrice on request
• Ongoing website managementPrice on request
• Custom apps and integrationsPrice on request
• Analytics and trackingPrice on request
• Systems integrationPrice on request
• TroubleshootingPrice on request

Featured work

• Sunbaby

  Shoper to Shopify migration with ~800 products and blog. Built with custom Liquid sections, Baselinker integration, custom GTM events and checkout customizations and installments. SEO visibility remained stable after migration.

• EVOLUTS

  Shopify store for a digital LUT brand built from an Adobe design. Custom Liquid sections on Dawn theme, optimized for PageSpeed. Includes digital product delivery, Judge.me reviews and Google/Meta analytics.

• Clarity Collagen

  New Shopify store for the Polish market. Custom Liquid sections, Klaviyo automation flows — email sequences achieved open rate of 85.7% and click rate of 14.3%.

• Playlo

  Shopify store built from scratch. Paid theme customization, custom Liquid sections, Shopify Flow automation and Omnibus compliance.

• MILSEN

  WooCommerce to Shopify migration. Shopify Markets with multi-currency, international shipping and Etsy review integration.

Ratings and reviews

• PlastmodelStore build or redesignOct 8, 2026

  Z Panem Danielem pracuję ponad 6 miesięcy. Wcześniej pracowałem z agencją. Muszę powiedzieć że jestem mile zaskoczony z obecnej współpracy. Znacznemu polepszeniu uległa jakość wykonywanej usługi, czas skrócił się o połowę a koszty spadły trzykrotnie. Z czystym sumieniem polacem Pana Daniela to bardzo kompetentny i uczciwy specjalista od Shopify.

• RIVASHIELDStore build or redesignApr 8, 2026

  Współpraca z Panem Danielem to naprawdę czysta przyjemność. Do każdej sprawy podchodzi bardzo rzeczowo, potrafi wprowadzić proces i urealnić efekt, który chcemy osiągnąć na naszej platformie. Dzięki jego wiedzy i doświadczeniu rzeczy pozornie niemożliwe stają się osiągalne. Pan Daniel doskonale wie jak działać w automatyzacjach, kodach strony i wielu innych rzeczach (aplikacjach, szablonach). Na szczególne uznanie zasługuje również sprawna komunikacja oraz nastawienie na efektywność działania. Polecam współpracę z Panem Danielem! :)

• NOESISTheme customizationMar 26, 2026

  Highly recommended!

• BotabluTheme customizationMar 18, 2026

  Dan has been a real asset in helping us navigate the backend of our Shopify site. He’s assisted with design adjustments, development work, and troubleshooting, and has been consistently responsive and thoughtful in his approach. We’ve appreciated his ability to understand what we’re trying to accomplish, the limitations of a small business, and to translate that into practical solutions without overcomplicating the process. Having someone reliable to turn to when issues come up or when we’re refining how the site functions behind the scenes has made a meaningful difference. Strongly recommended.

• CLARITY Collagen POLSKAStore build or redesignMar 18, 2026

  Top-notch collaboration! Communication was always fast and seamless, and the knowledge of Shopify was absolutely impressive – I received a clear and accurate answer to every single question. Task execution was lightning-fast, with no unnecessary delays. You can tell this is someone who knows the subject inside and out. I wholeheartedly recommend them to anyone looking for a reliable and highly competent specialist!

• DivaPro StylingWebsite audit and optimization strategyMar 16, 2026

  Daniel is a professional partner who completes tasks on time. He is reliable and trustworthy. I recommend cooperation with Daniel.

• Playlo.plStore build or redesignMar 10, 2026

  Building our store from scratch with this partner was a pleasure. Very professional approach, great understanding of our needs, and top-notch technical execution. A true Shopify expert!

• milsendesign.comStore build or redesignMar 10, 2026

  Great experience! The migration from WooCommerce to Shopify was smooth and professional. The store works perfectly, and the communication was excellent. Highly recommend for any platform migration!

• EVOLUTS™Store build or redesignMar 9, 2026

  Working with Daniel Sulkowski was a great decision. They helped me set up my digital products store on Shopify flawlessly. The communication was excellent, and the technical execution was top-notch. Highly recommend for any Shopify project!

• Home & RoostTheme customizationMar 9, 2026

  I've worked with dozens of developers over the years, and Daniel is without question the best Shopify developer I've ever used. He offers great value, works fast, and the quality is always exactly what I need. He's brilliant with follow-ups too — when revisions are needed, we always find a quick, painless solution. Highly recommended. I'm lucky to have him on my team.

Read all reviews on Shopify →