projects.archive

Things I've shipped

Browse the full catalog: web applications, mobile applications, dashboards and AI-assisted builds.

54 projects shipped

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17 projects

Wawa Rider App — SRSE Trip Planner, Wallet & Smart Boarding

Wawa is a Venezuelan mobility company running bus circuits, private transport and rentals in Venezuela, Colombia and Guatemala, and I have been the top contributor to its rider app since 2024. My biggest feature there is SRSE, the Smart Request Schedule Engine I designed and built end to end. Riders type where they are going and see every departure of the day as walking plus bus itineraries, with up to one transfer, filtered by real seat availability and ranked by arrival time, transfers and walking. Booking is atomic across legs: a trip gets all its seats or none, and if something breaks the app says which leg failed and offers new options. The engine is pure TypeScript in a hexagonal design with about 660 test cases, load-tested with k6. Around it, the app handles wallet top-ups with several payment providers, favorites, automatic boarding, QR boarding tickets and push notifications, shipped with EAS and over-the-air updates.

RED1A1 V2 — Real-Estate Marketplace on Web, iOS & Android

I led the rebuild of RED1A1, a Mexican real-estate marketplace and professional network, across web, mobile and API. The new Next.js 16 site has a map-first home, directories, owner and admin dashboards, white-label agent websites and Stripe checkout. I shipped a new Expo app as an in-place update to the existing App Store and Google Play listings, with realtime chat, push notifications, native in-app purchases and over-the-air updates. On the Node and MongoDB backend I added realtime delivery, membership logic and scheduled jobs. Strict TypeScript, Zod validation and a 70-flow Maestro suite on Android keep it steady. This extends my earlier work on RED1A1's template pages.

Wawa Web Platforms — CMS, B2B Portal & Boarding Check-in

These are the web tools behind Wawa's mobility operation: a CMS back office with about 38 modules, a B2B portal for companies, a partner portal, a public rentals page and a passenger check-in app for boarding. I worked full stack across the Next.js front ends and the NestJS and GraphQL API. Highlights are a live fleet map and operations monitor, bulk cost uploads from Excel, reports and exports, and phone-OTP login by SMS or WhatsApp. I helped merge the apps into one Yarn monorepo with a shared design system, and I built the QR check-in app with a live bus map. A 62-spec Cypress suite and CI checks protect it.

DotDevPay — Payments Backend (GraphQL, Stripe, Zelle & Pago Móvil)

DotDevPay is a payments platform I am building to make company payment flows easier in Venezuela. The backend is a NestJS GraphQL API on Prisma and MongoDB where businesses create payment links, manage payment methods and collect from clients through Stripe, Zelle and Pago Móvil. I designed each gateway as its own module behind a shared interface, so adding a new one doesn't touch the rest. It also has role-based access for users and super users, a licensing model with service packages, and analytics for links, methods and clients. Error handling, validated configuration, structured logging and per-environment seeds are all in place.

Golden Flower Retreats — Bilingual Site with Admin Panel & API

A bilingual website and admin area I led for a wellness retreat business, working with a second developer through branches and pull requests. The public site presents retreat packages, travel tips and a Q&A section with an animated hero in Spanish and English. An Express and MongoDB API sends contact and free-guide emails, and a protected admin panel lets the owner review contacts and manage Q&A entries. Built with React, Material UI, Redux and Firebase, and deployed on Vercel.

Proyecto Soma

This project was developed as part of a thesis presentation at a local university. The original description within the thesis document included the following: “The system provides a perspective of the sets of elements that are interconnected, a web tool to organize the work landscape and plan the tasks to be completed, avoiding the hassle of paperwork within the department, improving procedures.” The project was based on solving a management problem within a local clinical laboratory.

Muscurehab

A small project developed in record time for a local physiotherapy center. The app's functionality was simple: users could register their profile, select the type of injury they had and its location on the body. Based on this information, the app would recommend specific exercises, and at the end, there was a feedback modal to evaluate the progress of their recovery.

Ek Parts

Ek Parts was the last contract I worked on with Empire Keeway, and it involved creating a mini e-commerce platform to sell motorcycle parts to specific clients across Venezuela. The platform didn’t integrate payment methods, as payments were arranged after placing the order.

La Wawita (Technical Test)

This project was created as a technical test for my subsequent entrance into Wawa. The technical test involved creating a mini system with a backend built using NestJS, Prisma, Apollo GraphQL, and MongoDB. The system allowed storing buses and their corresponding routes in separate tables in the database, with the goal of displaying them later in a frontend developed with Next.js. Additionally, the project included displaying the bus route on a Google Maps map.