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Sergio Pereyra's avatar
Sergio Pereyra
Frankfurt, Germany
Full-Stack Engineer | React Native, Supabase & AI Product Bu
$1k+
Earned
3x
Hired
5.0
Rating
47
Followers
Full-Stack Engineer | React Native, Supabase & AI Product Bu
Cover image for Hey guys, jumping on the #contraquest train, so quick intro....
Hey guys, jumping on the #contraquest train, so quick intro. I'm Sergio, based between North and South America. Running Galindo and now Fluxovia - a dev studio that turns ideas into revenue-generating platforms. I've been building for the web for 28 years combined. Started with basic HTML sites in the late 90s, survived the Flash era, and now lead a team of 6 building everything from high-traffic WordPress to custom SaaS platforms. These days we focus on helping guys build platforms that actually make money..not just look good. Built a SaaS that generated $250K in its first 60 days. Went full-time agency about 17 years ago. Contra's been great for connecting with ambitious founders who need a partner who understands both the tech and the business side. Would love to meet more of you building interesting things. 👋
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234
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.
0
21
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
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2
118
Cover image for NextBlock - Blockchain SaaS ($250K in 2 Months)
NextBlock - Blockchain SaaS ($250K in 2 Months)
0
21
Frontend Engineer(1)
Eike Czada's avatar
Eike Czada
Frankfurt, Germany
Webflow & Brand Designer (featured in Business Insider)
Webflow & Brand Designer (featured in Business Insider)
Cover image for Webdevelopment | World Fund
Webdevelopment | World Fund
0
17
Cover image for Branding & Webdesign | Classkick
Branding & Webdesign | Classkick
0
14
Cover image for 3D-Webdesign & Development | CHAMPAIGN
3D-Webdesign & Development | CHAMPAIGN
0
12
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Frontend Engineer(1)
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 Rapid MVP Development for Startups
Rapid MVP Development for Startups
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10
Cover image for Full-Stack Engineering Excellence
Full-Stack Engineering Excellence
0
8
Cover image for Personal Website: www.wilfredocasas.com
Personal Website: www.wilfredocasas.com
0
11
Cover image for Whale, a social geolocation app.
Whale, a social geolocation app.
0
10
Frontend Engineer(5)
Alex Grey's avatar
Alex Grey
Frankfurt, Germany
Top-notch Webflow Wizard for Hire
$1k+
Earned
1x
Hired
3.2
Rating
11
Followers
WEBFLOW_EXPERT

Certified Partner

Top-notch Webflow Wizard for Hire
Cover image for Unlayer
Unlayer
0
12
Cover image for Arik Portfolio
Arik Portfolio
0
10
Cover image for GetHype
GetHype
0
13
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Frontend Engineer(2)