ABOUT ME
I build software to solve
real problems.
I am Sebastián Cardoso Castillo, a software developer. I have spent more than 15 years working with technology, and today I design and build websites, applications, systems and automations for businesses and professionals.
I work from Miramar, Buenos Aires, combining development, automation and artificial intelligence. I first try to understand which problem is worth solving, and then take a useful solution into production.
- +15 years building software
- Direct contact
- Projects in production

01 · HOW I WORK
I work directly on every project.
SEBA is my way of working directly with clients. There is no chain of intermediaries between the problem and the person building the solution. I analyze each case, design the solution and participate directly in implementation.
- Direct contactYou talk directly with me.
- DefinitionI define the solution.
- ImplementationI participate in the implementation.
02 · What I do
What I do
- Web development
- Applications and systems
- Automation
- WhatsApp Business/API
- Applied artificial intelligence
- Integrations
03 · How I work
First I try to understand the problem.
Technology comes after that. I first review how the business works today, what is getting in the way and what result would be valuable. From there I design the simplest solution that solves the problem well, validate it and take it into production.
04 · Projects
Real work, already in production.
Website, operations and member access in one platform
A web platform with a public website, admin dashboard and private member portal.View case studyA trilingual platform for content and operations
A trilingual platform with activities, archives, secure forms and a protected admin panel.View case studyAppointments, deposits and WhatsApp, automated
An application with a schedule, WhatsApp, deposit validation and Google Calendar.View case study
05 · Content
I also share what I am building.
I am starting to share about development, artificial intelligence, automation, projects and the process of building SEBA.
06 · Next step
Do you have a project in mind?
Tell me what you want to solve. If I can help, we can see the simplest way to move forward.
Tell me about your project

