I will develop a custom or public shopify application


Level 1
About this gig
Im Daniel, a Shopify expert with 9+ years of full-stack development and deep experience building high-performance private apps, public Shopify apps, and Built for Shopify Ready (BFS) apps using the latest 2025 Shopify tech stack.
What you get at a Glance:
- Guaranteed Shopify App Store Submission & Support
- Clean app source and documented code
- Clean Shopify compliant UI/UX
- Shopify Billing Setup
- AUTH 2.0 integration
Examples of Custom & Public Shopify Apps I build
- Upsells / cross-sells
- Product recommendations (AI-powered optional)
- SEO apps
- Loyalty & rewards systems
- Multi-currency & multi-language apps
- Pricing, discount, bundling & dynamic rules engines
- Inventory, shipping & fulfillment automation
- Order & customer management apps
- Scheduler, cron-based automation tools
- Multi-store sync apps
- Checkout UI extensions
- Checkout validation & custom logic
- Checkout branding
Tech Stack & Tools I Use
- Shopify Remix 2025 / App Bridge
- Next.js 16, React 19, TypeScript 5
- Polaris 12, GraphQL Admin API, REST API
- Node.js, PostgreSQL, Prisma
- Secure billing flows (Subscriptions, Usage charges)
Feel free to contact me so we can begin your project. I look forward to working with you.
Gig milestonesNEW
Choose to pay for your project per milestone by only paying when it’s time to start a new one or decide on a 1-time payment.
- Basic Package.
- 1st Milestone: Specifications1-day delivery · 1 revision$50Pay now
I'll write the specifications for your site's functionality and features.
- 2nd Milestone: Final Design4-day delivery · 2 revisions$200Pay later
I'll deliver the final website design for your approval.
Development · First draft - 3rd Milestone: Delivery1-day delivery · 2 revisions$250Pay later
I'll send you the final delivery for review and feedback.
These are the steps we’ll follow to complete your project.
Respect third-party rights
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Get to know Daniel Cherac
STB Web Solutions
Level 1
- FromUkraine
- Member sinceNov 2015
- Avg. response time5 hours
- Last delivery1 month
Languages
English
FAQ
Do you develop Built for Shopify (BFS) eligible apps?
Absolutely. I follow Shopify’s BFS guidelines: lightning-fast performance, App Bridge, Polaris UI, accessibility, and INP optimization.
Can you integrate my app with third-party APIs or external systems?
Yes. I build ERP, CRM, accounting, fulfillment, marketing, and AI integrations using secure API architecture, queues, and webhooks.
Will the app work on multiple Shopify stores?
Yes. Public apps work on unlimited stores. Private apps can also support multiple stores using authenticated access or multi-tenant architecture.
Do you offer ongoing maintenance or support?
Yes. I provide post-delivery support and offer optional long-term maintenance for updates, new features, and Shopify API changes.
Can you connect my app to AI models (OpenAI, Gemini, custom models)?
Definitely. I build AI-powered features like product description generators, image enhancers, recommendations, and more.
How do you ensure my app is secure?
I use OAuth 2.0, HMAC verification, JWT tokens, encrypted storage, webhook validation, and follow Shopify’s app security guidelines.
Can you build custom checkout extensions?
Yes—I develop Checkout UI extensions, validation, post-purchase upsells, cart transforms, and full checkout customizers using Shopify’s extensibility framework.
Do you provide documentation for my app?
Yes. Every project includes clean documentation, code explanations, API endpoints, and user instructions if needed.
