Freelancers using SQLite in MadridFreelancers using SQLite in Madrid
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Berckan Guerrero's avatar
Berckan Guerrero
maxMadrid, Spain
Founders' Tech Partner | Full-Stack AI Engineer | 14 yrs exp
$50k+
Earned
9x
Hired
5.0
Rating
27
Followers
Founders' Tech Partner | Full-Stack AI Engineer | 14 yrs exp
Cover image for Pulso: Prospect Intelligence Dashboard
Pulso: Prospect Intelligence Dashboard
1
16
Cover image for NurvAI: Website Redesign & Development
NurvAI: Website Redesign & Development
3
18
Cover image for Raven: AI Knowledge Management Platform
Raven: AI Knowledge Management Platform
1
5
Cover image for PartSpace: AI-Powered B2B Procurement Platform
PartSpace: AI-Powered B2B Procurement Platform
1
2
13
SQLite(1)
Nikita Beznosikov's avatar
Nikita Beznosikov
Madrid, Spain
Full-Stack Engineer · SaaS · Node.js / React / TypeScript
5.0
Rating
2
Followers
Full-Stack Engineer · SaaS · Node.js / React / TypeScript
Cover image for AI-powered language flashcard app for
AI-powered language flashcard app for iOS. Users describe any theme ("Coffee and tea", "Driving exam") and the app instantly generates a custom deck via Google Gemini. Features a progressive 3-level vocabulary system (beginner → intermediate → advanced) with mastery-based unlocking, SM-2/FSRS spaced repetition with Again/Hard/Good/Easy ratings, offline-first SQLite storage, bilingual audio examples, smart daily reminders, and a freemium model (RevenueCat) gating unlimited decks and advanced levels. Built with React Native (Expo), TypeScript, SQLite, Supabase, Google Gemini, RevenueCat.
0
116
Cover image for Pay-per-use video testimonial SaaS. Businesses
Pay-per-use video testimonial SaaS. Businesses collect text reviews for free and pay per video testimonial via a credit system — no subscriptions. Features include browser-based video recording, embeddable widget with masonry layout, Stripe payments, credit metering via Cloudflare Stream analytics, signed video URLs for hotlink protection, and a dashboard for approving/rejecting submissions. Built with Next.js, Supabase (PostgreSQL), Cloudflare Stream, Stripe.
1
136
Cover image for Shopify app for EU Digital
Shopify app for EU Digital Product Passport (DPP) compliance. Merchants can create and manage product passports with QR codes, print labels, bulk edit via CSV, and use AI to auto-fill passport fields from existing product data. Built with Remix, React, Node.js, Prisma, and Shopify GraphQL API.
1
143
Cover image for Built and owned the entire
Built and owned the entire technical stack for a US e-commerce platform generating $1M/mo revenue. Developed custom Next.js storefront, checkout, and CMS admin panel from scratch. Integrated Stripe, Braintree, PayPal, Apple Pay, and Google Pay. Implemented fraud protection, automated chargeback handling via Visa CDRN, server-side tracking (FB CAPI, Google Ads), and BigQuery analytics pipeline.
1
120
SQLite(1)