01
Custom Android apps
Native apps with Kotlin and Jetpack Compose, designed for real phones: mid-range devices, limited battery and spotty connections.
- Kotlin + Compose
- Offline-first and sync
- Material 3 and accessibility
- Google Play publishing
Services
Software that feels made by hand.
Android apps, applied AI, product design and maintenance. I work with small teams and businesses that need technology to solve something concrete, not to fill a slide deck.
“Offline isn’t a feature; it’s respect for the user.”
Antonio Sánchez
What I do
From the problem to the product in your pocket.
You can hire a single piece or the whole journey. What matters is that every decision has a reason.
02
Applied AI
We integrate language models, OCR and classification into concrete workflows. No pretty demos that never reach production.
- Assistants and automation
- OCR and data extraction
- Classification and summaries
- Evaluation and cost control
03
Product design
Research, flows and UI before writing code. Prototypes you can test with users, not just present.
- Flows and information architecture
- Wireframes and high-fidelity UI
- Clickable prototypes
- Design system
04
Web and cross-platform
Fast sites, dashboards and APIs that support the app. Astro, TypeScript and services that earn their place.
- Static sites and PWAs
- Dashboards and APIs
- Supabase integration
- SEO and performance
05
Maintenance and audits
We review existing apps: performance, security, technical debt, accessibility and migrations that feel scary.
- Technical audit
- Performance and crashes
- Security and permissions
- Migrations and upgrades
Not sure which service you need?
Tell me the problem and I will tell you what I would do in your place. No strings attached.
Ways of working
Three ways to start.
Fixed project
Defined scope, timeline and price. Ideal for launching a first version or a large feature.
- Discovery and proposal
- Weekly deliveries
- Launch included
Monthly partnership
An on-demand product and development partner. For teams that iterate and need speed.
- Weekly priorities
- Design + development
- Progress report
One-off audit
Review of an existing app: performance, security, accessibility and technical debt.
- Clear report
- Prioritized risks
- Action plan
How we work
A short process, no smoke.
Four stages. Visible deliveries from the first week and documented decisions.
- 01
Discover
We understand the business, the users and the real constraints. What has to happen for the app to be worth it.
- 02
Design
Flows, wireframes and UI. We test the hard decisions before they cost code.
- 03
Build
Kotlin, Compose and an architecture that can grow. Frequent deliveries and installable builds.
- 04
Launch
Beta, measurement, iteration and support. We ship, listen and fix.
What you can expect
Fewer meetings, more product.
- Direct communication, no middlemen.
- Weekly deliveries, not only at the end.
- Documented code that belongs to you.
- A clear budget before we start.
- No unnecessary dependencies or vendor lock-in.
Let’s talk
Do you have an app in mind?
Tell me what you want to build, for whom, and what has to happen for it to be worth it. I reply within 1–2 business days.