Brian De Jesus
Software Developer & SaaS Builder
I build modern web applications, automation systems, and scalable SaaS tools for businesses.
Founder of Sumidev.
Projects
FlowBook
Booking system for studios and service businesses including calendar, payments, and admin dashboard.
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Strivio
Management platform for personal trainers. Features client management, workout tracking, and subscriptions.
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FlowAutomate
Business workflow automation platform linking bookings to email confirmations, reminders, and smart lock access.
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Restaurant Website
A modern restaurant website with digital menu, reservations, and mobile optimization.
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住友勉強
Language learning platform built to help users learn languages through interactive tools.
View DemoTechnology We Use
We build scalable modern systems using reliable technologies and integrations.
Freelance & Software Services
Website Development
Modern responsive websites for restaurants, gyms, studios, and local businesses.
SaaS Development
Custom web platforms including dashboards, booking systems, and internal tools.
Automation Systems
Automating business workflows like bookings, reminders, smart lock access, and scheduling.
API Integrations
Integrating third-party services and building custom backend systems.
About Brian
Hi, I'm Brian.
I'm a software developer based in Germany currently working with C#, .NET, SQL and modern web technologies.
I enjoy building SaaS products, automation systems, and scalable web platforms.
Alongside my work I build independent software products such as FlowBook, Strivio, and InsightDot under my studio brand Sumidev.
Interested in working together?
If you are looking for a developer to build a modern website, SaaS product, or automation system, feel free to reach out.