Software & AI · US, LATAM and Argentina
We build backends, apps and AI that make it to production.
Weikiu is a software studio led by Eduardo Leiva, a Lead Backend Engineer with 10+ years of experience. We work with founders and companies in the US, LATAM and Argentina: from the AI backend that analyses screenplays at First Look to the app CDC’s drivers use every day.
Eduardo Leiva
Founder · Systems Engineer
- Argentina · remote
- Lead Backend · Morsum
- Databases lecturer
- UTN
- Drivers use the app we built for CDC every dayReact Native · App Store and Google Play
- ~100
- Trivia quizzes published on trivias.de, our own productAI-generated, checked in a second verification pass
- 50+
- Years Eduardo has been building softwareCurrently Lead Backend Engineer at Morsum, a US logistics SaaS
- 10+
How we can help - Five ways to work together
From automating a shop's customer service to launching an app in both stores. Pick where to start and we'll build it step by step.
Also: web development · e-commerce · custom software · embedded systems
Work - Real products, in production
Two client projects, live in production.
Stack - What we build with
The tools we use every day, on client projects and on our own products. Each group says where it runs in production.
Backend & data
- TypeScript
- Node.js
- Bun
- Hono
- PostgreSQL
- Row Level Security
In production at: CDC · Trivorio · ALLIE
Web & mobile
- Next.js
- React
- React Native
- Expo
In production at: CDC · Trivorio
AI
- OpenAI API
- GPT-4o
- Claude API
In production at: First Look · Trivias.de
Infrastructure & automation
- Fly.io
- CI/CD
- Remotion
In production at: CDC · Trivorio · Trivias.de
You work directly with the person who builds
Weikiu was founded and is led by Eduardo Leiva: Systems Engineer (UTN), 10+ years building software and currently Lead Backend Engineer at Morsum, a US logistics SaaS, and teaches Databases. Eduardo is on every project, from the first call to delivery, and everything is documented in your repository so nothing depends on one person.
- Lead Backend · Morsum
- Systems Engineer · UTN
- Databases lecturer
Working with us - Pick how we work together
Three ways to hire us, depending on where your project is. In all of them you work directly with Eduardo, in English or Spanish, with plenty of overlap with US working hours.
Fixed project
A defined scope, with deliverables and a date agreed before we start. To launch a product, an app or an AI integration.
Best if you know what you want to build.
Monthly
A fixed monthly commitment to keep building and to maintain what's already in production.
Best if your product is live and needs to move forward every week.
Hourly advisory
Sessions to review architecture, choose a stack, assess an AI integration or unblock a specific problem.
Best if you have your own team and want a senior second opinion.
The first step: a 30-minute call
You tell us what you want to achieve and where you are. We tell you whether we can help, which way of working fits and what the next step would be.
It was a pleasure working with him. Communication was smooth, deadlines were respected, and the overall collaboration was professional and efficient.
Blog - What we're learning
Have a project in mind? Let's talk.
We start with a 30-minute call: you tell us what you want to achieve, and we tell you whether we can help and how. Eduardo replies personally.