Available for new projects
Development of with the right stack.
I'm Javier Cruz, founder of SrBolillo Dev. I design and build modern software —web, mobile and backend— using Next.js, React, Vue, Flutter, Kotlin, Node.js, Python and more.
Next.jsReactVueTypeScriptPythonJavaKotlinFlutter
Mobile App
API Backend
constapi=newFastAPI()
@app.get("/health")
async def health_check(): {...}
@app.post("/users")
async def create_user(user: User): {...}
// Node.js + Python + Java Spring
Landing Page
Dashboard Admin
Users
12.4k
Revenue
$84.2k
Next.jsReactVueTypeScriptTailwind CSSNode.js
Next.jsReactVueTypeScriptTailwind CSSNode.js
Next.jsReactVueTypeScriptTailwind CSSNode.js
Next.jsReactVueTypeScriptTailwind CSSNode.js
PythonJavaKotlinFlutterPostgreSQLMongoDBAWSDocker
PythonJavaKotlinFlutterPostgreSQLMongoDBAWSDocker
PythonJavaKotlinFlutterPostgreSQLMongoDBAWSDocker
PythonJavaKotlinFlutterPostgreSQLMongoDBAWSDocker
// what I do
Building digital products, end-to-end.
Modern websites
Landing pages, e-commerce and SaaS platforms with Next.js, React or Vue.
Mobile apps
Native Android with Kotlin/Java or cross-platform with Flutter.
Robust backends
APIs in Node.js, Python or Java ready to scale.
Custom software
Technical solutions designed for your business, not generic templates.
// demos
Example pages
Design and interface prototypes
Have an idea? Let's make it real.
Tell me what you need to build and I'll respond with a clear and honest proposal.

