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English, Spanish, Bulgarian
Shopify Performance & Front-end Developer | Canvas-Ready Store Builds & Audits
Shopify Performance & Front-end Developer with over 10 years of experience building, customizing, and optimizing online stores for brands of all sizes. Proud father of Radost.
I've worked with startups, scaling businesses, and established brands across industries, helping them create high-performing, visually compelling Shopify stores that convert visitors into loyal customers.
What I do
Custom Front-end development solutions, custom themes and apps, and seamless feature implementation
Shopify Plus Function APIs and checkout customization
Speed optimization and Core Web Vitals, including advanced CLS fixes
UX-focused design improvements aligned with modern e-commerce best practices
Canvas services (new Shopify feature)
Canvas store-build sprint
For new launches and smaller merchants who want a custom store fast.
Kickoff call to define your brand, products, audience, and goals
AI-assisted design direction: I write the brief and guide Sidekick in Canvas, then refine the result with direct edits and QA.
Responsive QA across mobile, tablet, and desktop, including product, collection, cart, and checkout flows
Performance check for Core Web Vitals and layout shifts before launch
Launch, walkthrough, and a post-launch support window
Canvas readiness audit
For established stores running several storefront apps.
Inventory of your apps, embeds, Markets, translations, theme setup, and analytics
Clear verdict on each item: ready for Canvas, needs rebuilding, or waiting on Shopify to add support
Written report with a prioritized roadmap and a walkthrough call
Optional re-audit as Shopify expands Canvas
Coming as Canvas expands
Checkout QA for agent-assisted shopping
End-to-end test journeys covering extension interaction, 3DS handoff, subscriptions, and post-purchase checks, with a bug log and retest after fixes.
Rollouts campaign implementation
Theme, checkout, and discount variants with traffic allocation for major promotions, built with conversion in mind.
What sets me apart is reliability. Great development doesn't end at launch. I stay available for ongoing support, improvements, and fast problem-solving, so you can count on me for a long-term partnership as well as delivery.
I value clear communication, consistent quality, and dependable support, whether it's a full store build, advanced customization, a Canvas build, or performance tuning.
If you're ready to turn your website into a growth engine, let's build something exceptional together.
Deyan Chernogorski is a freelance Shopify developer based in Bulgaria. He specializes in custom theme development, Shopify app development, and Shopify Functions, with a particular focus on speed performance optimization and Core Web Vitals improvements. His services also include UI/UX enhancements, store audits, and ongoing support. Reviews highlight his quick delivery, clear communication, and strong technical expertise. He appears to work with a range of merchants, from first-time store owners to established international brands, and is noted for providing reliable, high-quality work.
Deyan Chernogorski's business address
Gen. Dragomirov 3, Byala, Rousse, Bulgaria
Across 68 client reviews, customers consistently praise Deyan for his fast delivery, clear communication, and high-quality work. Reviewers frequently highlight his ongoing support and technical expertise, along with his ability to understand requirements and maintain professionalism. The overall rating of 4.94 reflects consistent satisfaction with his services.
1-10 out of 72 reviews
This client was hired on shopexperts.
This review was posted voluntarily by the client.
Very good and perfect result!
This client was hired on shopexperts.
This review was posted voluntarily by the client.
Fast, straightforward service and always great quality. Everything was easy to deal with and delivered quickly.
This client was hired on shopexperts.
This review was posted voluntarily by the client.
Excellent!
This client was hired on shopexperts.
This review was posted voluntarily by the client.
Deyan is incredible. His customer service is impeccable, and he constantly delivers quality results every time. I never have to worry about the project not being completed exactly as expected in a timely fashion. Could not recommend anyone else but Deyan!
This client was hired on shopexperts.
This review was requested by the expert.
I’ve had the pleasure of working with Deyan for the past two years, and I can confidently say he is one of the best Shopify developers we’ve worked with. Deyan built both of our Shopify stores and has been an incredible partner throughout the entire process. He is extremely knowledgeable, professional, responsive, and always available whenever we have questions or need support. No matter how complex the challenge, he always finds a solution that is tailored specifically to our business instead of offering a generic approach. What I appreciate most is his attention to detail and the confidence he gives us. Every project feels organized, every task is carefully thought through, and you always feel like everything is under control. He is proactive, patient, and genuinely cares about delivering the best possible outcome. If you’re looking for someone who truly understands Shopify, is easy to work with, and consistently goes above and beyond, I couldn’t recommend Deyan more highly. We look forward to continuing to work with him as our business grows.
This client was hired on shopexperts.
This review was requested by the expert.
I have worked with Deyan on a number of projects for our Shopify site - he has been great with completing our projects quickly and efficiently. We usually jump on a quick video call which is super helpful to discuss the project - he gives us a cost and timeline - and he delivers super quickly - would highly recommend - 10 stars for sure!
This client was hired on shopexperts.
This review was requested by the expert.
Great service, fast communication and explained steps clearly. Very good customer service, will be using again for future work. Thank you for all the help.
This client was hired on shopexperts.
This review was requested by the expert.
I've been working with Deyan for a long time. He's always helped me fast and professionally, with new updates as well as fixes to problems with my theme. I am surprised how well he understands my customizations, and when he looks into problems, everything works fine after. I cannot describe how much customizations I have in my theme, therefore I'd give him not only 5 stars; in my opinion and based on my experience, I'd give him 7 stars. Many regards from Germany.
This client was hired on shopexperts.
This review was requested by the expert.
I’ve worked with Deyan from Shopexperts for over three years, since joining La Residence Interiors, and he has offered invaluable support with the functionality of our website. He has helped us deliver a wide range of website improvements, from custom-coded features to complex projects dealing with third-party app integrations. No matter the scope of the project, Deyan consistently delivers high-quality work, often ahead of schedule, and is always clear and straightforward in his communication. I wouldn’t hesitate to recommend Deyan to anyone looking for a developer.
This client was hired on shopexperts.
This review was posted voluntarily by the client.
Very Great


