Custom Web Applications That Do Exactly What Your Business Needs
When no off-the-shelf tool does what you need, I build one that does. SaaS platforms, data dashboards, customer portals, internal management systems, and complex integrations. I'm based in Chile and work with US businesses on US time zones.
More than a standard website
A custom web application is a complete system: it automates processes, centralizes information, and gives your team tools that didn't exist before. Here's what I build.
Architecture that scales with you
System design from day one that supports growth. Whether you have 100 users today or 100,000 next year, the architecture accounts for it before the first line of code is written.
AI and automation built in
Predictive models, natural language processing, automation of repetitive processes. If your business can benefit from AI, I implement it in a practical, measurable way.
Real-time dashboards and reporting
Control panels that show exactly the data that matters to your business. Interactive visualizations, filters, exports, and automatic alerts when something changes.
Integrations with APIs and third-party services
Connections to CRMs, ERPs, payment gateways, messaging services, logistics platforms, and any API your operation requires. All in one unified ecosystem.
What kinds of projects do I work on?
Every application is different, but these are the most common project types. If yours isn't on the list, let's talk anyway; chances are it can be done.
- SaaS platforms with subscription billing
- Analytics dashboards and executive reporting
- Customer portals with authentication and role-based permissions
- Internal management systems (custom ERP, CRM)
- Integrations between services and workflow automation
- Applications with data processing and AI predictions
Modern technology, not trendy technology
I choose the technology based on what your project needs, not what's trending. React, Next.js, Node.js, Python, Flutter, AWS, Azure, Docker, and whatever the project calls for.
Clear pricing, no surprises
Platform with core functionality
From $8,000
Working MVP in 6–10 weeks with iterative deliveries
Complete SaaS or multi-module platform
$15,000–$30,000
AI built in, multiple user roles, integrations, and scalability
What everyone asks before hiring
How much does a custom web application cost?
Custom web applications start at $8,000 for platforms with a well-defined core feature set. More complex projects with multiple modules, third-party integrations, or AI built in run from $15,000 to $30,000. The exact price depends on scope: number of users, roles, integrations, and workflow complexity. In the free Discovery session I give you a real estimate.
How long does it take to build a web app?
An application with core functionality takes 6 to 10 weeks. Complete SaaS platforms or multi-module systems can take 12 to 20 weeks. I work in iterative deliveries: every 2 weeks you get a working version to review and approve.
Can I integrate AI into my application?
Yes. I integrate AI models (OpenAI, Claude, Gemini) to automate tasks, generate content, classify data, or build conversational assistants inside your platform. AI goes where it makes real sense for your business, not where it makes a nice marketing bullet.
Do I own the source code when the project is done?
Completely. When the project is delivered, I transfer the full private repository with all the code, technical documentation, and access credentials. You don't depend on me to operate or modify your application.
What happens if my business grows and I need to scale the app?
The architecture is designed for scale from the start: separation of concerns, well-defined APIs, an optimized database. Adding new modules, increasing user capacity, or integrating new systems is part of the plan from day one, not a last-minute problem.
Have a complex project in mind?
That's exactly what the Discovery session is for. We talk for 5–8 minutes, I get a deep understanding of your project, and you get a real technical and cost proposal.
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