Freelancers using React Native in FrankfurtFreelancers using React Native in Frankfurt
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Sergio Pereyra's avatar
Sergio Pereyra
Frankfurt, Germany
SaaS & Mobile Product Rescue | React Native, AI, Full Stack
$1k+
Earned
3x
Hired
5.0
Rating
48
Followers
SaaS & Mobile Product Rescue | React Native, AI, Full Stack
Cover image for Beepr: WebView Prototype to Native Mobile App
Beepr: WebView Prototype to Native Mobile App
0
8
Cover image for One thing I learned migrating
One thing I learned migrating a mobile product from a WebView MVP to React Native: the hardest problems usually aren't the screens. On Beepr, the real blockers were background execution, geolocation reliability, push notifications, slow geospatial queries, and backend logic that had grown without a clear audit trail. I led the migration to React Native with Supabase, PostgreSQL, PostGIS, and native background capabilities. I also audited 51 Supabase Edge Functions and designed a zero-downtime cutover so the product could keep serving users during the transition. The takeaway: before rebuilding a mobile app, find out which problems are architectural and which are merely visual. A prettier interface won't fix unreliable background services, weak location enforcement, or slow queries. Curious what other teams have found when moving from a WebView-based MVP to a production mobile app. 8:58
1
2
160
Cover image for Took Beepr from Capacitor WebView
Took Beepr from Capacitor WebView prototype to production React Native + Expo Bare. Audited 51 Supabase Edge Functions, rebuilt background geolocation for native, added PostGIS. Zero downtime. 100% background geolocation reliability. If your app outgrew its prototype, DM me.
1
86
Cover image for NextBlock - Blockchain SaaS ($250K in 2 Months)
NextBlock - Blockchain SaaS ($250K in 2 Months)
0
24
React Native(2)
Wilfredo Casas's avatar
Wilfredo Casas
Frankfurt, Germany
MVP in 30 Days: Rapid Design & Full-Stack Development
MVP in 30 Days: Rapid Design & Full-Stack Development
Cover image for Full-Stack Engineering Excellence
Full-Stack Engineering Excellence
0
9
Cover image for Whale, a social geolocation app.
Whale, a social geolocation app.
0
12
Cover image for Personal Website: www.wilfredocasas.com
Personal Website: www.wilfredocasas.com
0
11
Cover image for Super Recogniser
Super Recogniser
0
8
React Native(2)