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I will fix shopify liquid code bugs backend connect shopify to whop checkout page etsy
Tobey
About this gig
Fix Shopify Liquid Bugs FAST + Backend/API Integration + Headless Storefront Expert Get Your Store Running Smoothly in Days.
Struggling with broken carts, layout glitches, slow pages, or missing features on your Shopify store?
I specialize in quick Shopify Liquid bug fixes, custom code, API integrations, and headless Shopify development using Storefront API, Hydrogen, Remix, or Oxygen. Whether it's a simple Dawn theme tweak or connecting your store to Supabase/Firebase/Node.js backend I deliver clean, fast, reliable solutions that boost conversions and performance.
Why work with me?
- 100% satisfaction or free fixes
- Fast turnaround (24-48h for urgent bugs)
- Clean, well-documented code
- Experience with modern Shopify tools (Liquid 2.0, GraphQL APIs, headless setups)
- Worldwide clients (US, Germany, Spain, Brazil & more)
How It Works (Simple & Fast Process):
- Message me with your store URL + issue details/screenshots
- I review & confirm scope/pricing (free consultation!)
- You order the right package
- I start work immediately daily updates
- You review & approve revisions until perfect
Ready to fix those annoying bugs or take your store headless? Message me now.......
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Tobey
Tobey
Backend Developer: Firebase, Supabase And API Expert
- FromNigeria
- Member sinceMar 2026
- Avg. response time1 hour
- Last delivery3 weeks
Languages
English, French, German, Spanish, Arabic
Hello. I’m a professional backend developer focused on building, fixing, and optimizing modern backend systems for websites, mobile apps, and digital platforms. I help startups and developers create secure, scalable, and efficient backend solutions that work
I specialize in Firebase, Supabase, Node.js, and REST APIs. I have hands-on experience designing authentication systems, connecting frontends to databases, and solving backend errors that affect performance and user experience. Whether you need a new backend system or help fixing an existing one, I can deliver reliable and clean solutions
FAQ
What exactly do you include in the Firebase Authentication setup?
I set up secure user authentication with email/password, Google, Facebook, Apple, anonymous login, phone auth (if needed), JWT tokens, custom claims, Firebase Security Rules for protected data, and basic frontend integration (React, Next.js, Flutter, etc.). Everything is production-ready and follows
Can you fix existing Firebase Auth problems?
Yes! Common issues I fix fast include login/signup errors, token expiration, redirect problems after auth, unauthorized access, verification email not sending, password reset failures, multi-factor auth conflicts, or integration bugs with your app. Just share your console logs/error messages, and I'
Do you integrate Firebase Auth with my existing backend or app?
Absolutely. I can connect Firebase Auth to custom backends (Node.js/Express, FastAPI/Python, Supabase, etc.), mobile apps (React Native, Flutter), or web apps (React/Vue/Angular). I also handle user profile syncing, role-based access, and API endpoints for protected routes.
What tech stack or frameworks do you support for Firebase Auth integration?
I work with React, Next.js, Vue, Angular, Flutter, React Native, plain JavaScript/HTML, and backend frameworks like Node.js, Express, NestJS, Python (FastAPI/Flask), PHP, etc. If your stack is different, message me first — most are supported!
How long does delivery take, and what do I need to provide?
Basic setup/fix: 1–2 days. Full integration: 3–5 days. Provide your Firebase project access (via collaborator invite), app code/repo link (GitHub), error screenshots/logs, and any specific requirements (e.g., social logins). I deliver clean code, documentation, and test it thoroughly.
