Barranquilla, Colombia
Edeiver Barranco
Front-End & Mobile Developer
I build fast, reliable mobile and web products for fintech, payments and crypto — with React Native, Expo and React.js.
Selected work
Apps I've built
Full-stack fintech app with AI insights
Centauri
A personal expense tracker I built end-to-end: a React Native/Expo client backed by a Node/Express/PostgreSQL API I wrote and deployed myself. It tracks income and expenses, visualizes spending as a 'planetary' system, and periodically calls an LLM to turn recent transactions into plain-language insights, recommendations and warnings — a real, cached AI feature, not a static screen.
Multi-currency fintech wallet
Pásame
A fully functional React Native/Expo fintech app: a premium card, multi-currency balances (USD, COP, BTC), instant transfers to frequent contacts and deposits through bank, card, Apple Pay or crypto — with a fully-designed light and dark mode.
Glassmorphic crypto wallet
Wallet
A minimal, glassmorphic mobile wallet with a dark, premium fintech-inspired UI. Send and receive money with QR codes, track transaction history and get animated in-app feedback — backed by a simulated API layer.
E-commerce app with authentication
edStore
A React Native/Expo e-commerce app with a real, session-persisted login and register flow: product browsing across multiple categories, live search and filtering, a persistent shopping cart and a fully custom, themeable design system — all backed by a public REST API, no keys required.
AI-assisted strength-training platform
Kuiper (Hércules)
A strength-training web app built from real gym use: a technique-rich exercise catalog, guided sessions sequenced by biomechanical logic, deterministic weight suggestions from logged history, and an optional Claude-powered session insight — fully bilingual with next-intl.
About
Systems Engineer turned product-focused developer
I'm a Front-End and Mobile Developer with 7+ years of experience shipping production apps in fintech, payments and crypto. I've led mobile development for payment platforms, built white-label apps adapted to different brands, integrated crypto and payment rails, and taken a national-scale Bitcoin wallet from zero to its first release. I care about reliable releases, clean handoffs with backend teams, and interfaces that feel effortless.
Career
Experience
Jan 2023 — Aug 2026
Cobru S.A.S.
Front-End / Mobile Developer
- Led mobile development for payment applications, white-label solutions and products involving cryptocurrency functionality.
- Built and maintained Cobru and white-label mobile apps, adapting the product to different brands and business requirements.
- Implemented payment and crypto integrations, guiding client companies through technical integration requirements.
- Managed app releases and store deployments, coordinating with backend teams on production issues across payment and digital-asset flows.
2020 — 2022
Trixel S.A.S.
Front-End Developer
- Developed and maintained front-end and mobile applications with React, React Native, Expo and JavaScript.
- Worked closely with backend teams to integrate features end-to-end, deployed releases and provided ongoing production support.
Jun 2021 — Dec 2021
Athena Bitcoin — National Wallet App
Front-End Developer (Client project via Trixel S.A.S.) · San Salvador, El Salvador
- Engaged to build the first version of a Bitcoin wallet application for the Government of El Salvador, as part of the country's national Bitcoin adoption initiative.
- Developed the app's front-end and mobile functionality with React Native, Expo and React, coordinating with the backend team end-to-end and providing ongoing support.
Jun 2019 — Dec 2019
Royal Films S.A.S.
Web Developer
- Developed web interfaces and web-based software functionality using JavaScript and React.
Toolbox
Skills
Mobile
Web
Integrations
Delivery
Product
Security
Education
Certifications
Languages
Contact
Let's build something reliable
Open to new opportunities in mobile and front-end development — especially fintech, payments and crypto products.