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Photo of Endryus Schmidel

EndryusSchmidel

Full-stack developer. Java, Spring Boot and React.

Co-founder of Verbinden Tecnologia (opens in a new tab)

I build systems where security and access control aren't an afterthought — they're architecture.

Rio de Janeiro

Profile

About

I'm a co-founder of Verbinden Tecnologia, a Rio de Janeiro company behind Verbi Beauty, a management system for salons, barbershops, nail studios and beauty studios, and behind Agência Verbinden, which builds custom websites and runs ads for professionals and service businesses.

I build Verbi Beauty together with my business partner, splitting backend and frontend between us. He leads the architecture decisions; I own the application security layer. I also run the agency's projects, from proposal to launch.

Application security is the technical area I identify with the most. In practice, that means I design for tenant data isolation, role-based access control and change auditing, and I test my own systems for authorization flaws such as IDOR and BOLA.

In parallel, I work as a developer at Plugpix, evolving a telemedicine platform in production.

Career

Experience

  1. Co-founder & Developer

    Verbinden Tecnologia

    • Since March 2026
    • Rio de Janeiro
    • current

    Building Verbi Beauty, a multi-tenant SaaS for managing salons, barbershops, nail studios and beauty studios, as a two-person team with my business partner: backend and frontend split between us, with the application security layer under my responsibility. I also run Agência Verbinden projects.

    • Logical tenant data isolation in PostgreSQL
    • Authentication and authorization with Spring Security and JWT
    • Mitigation of authorization flaws (IDOR, BOLA) across the REST APIs
    • Java 24
    • Spring Boot 3.4
    • React 18
    • TypeScript
    • Tailwind

  2. Mid-level Software Developer

    Plugpix

    • Since June 2026
    • Remote
    • current

    Responsible for developing and evolving a telemedicine platform in production. Bug fixing, shipping new features and distributing work to the support and development teams.

    • TypeScript
    • React
    • PostgreSQL

Verbinden

Work

Verbi Beauty landing page with the headline "Fewer no-shows, commissions without spreadsheets and an organized schedule" and the team schedule screen

Verbi Beauty

Management system (SaaS)

Management system for salons, barbershops, nail studios and beauty studios that cuts no-shows and ends commission spreadsheets: a booking is only confirmed once the Pix deposit is paid, and each professional's commission is calculated automatically, net of material costs. In the final stretch before launch. Private source code.

  • Online booking with Pix deposit
  • Automatic commissions
  • Team schedule
  • WhatsApp reminders
  • Secure multi-tenant
Home page of Dr. Victor Camillo's website, with the headline "Hormonal balance, health at every stage" and a photo of the doctor

Dr. Victor Camillo website

Agência Verbinden

A website built to turn people who find an endocrinologist in Rio de Janeiro on Google or Instagram into booked appointments: it explains what he treats and how the appointment works, and takes the patient straight to WhatsApp with a ready-made message to book. About to be published.

  • SEO to show up on Google
  • Practice on Google Maps
  • Fast on mobile and desktop
  • Portuguese and English
  • WhatsApp clicks tracked

Technologies

Stack

Backend

  • Java
  • Spring Boot
  • Spring Security
  • JPA/Hibernate
  • Flyway
  • PostgreSQL

Frontend

  • React
  • TypeScript
  • Tailwind
  • TanStack Query
  • Next.js

Delivery & quality

  • Docker
  • GitHub Actions
  • Sentry
  • Cloudflare
  • Vitest
  • Playwright

Security in practice

  • JWT + RBAC
  • Multi-tenant isolation
  • Rate limiting
  • OWASP Top 10

Improving

  • Offensive web security
  • PortSwigger Web Security Academy
  • Burp Suite
  • Nmap
  • Python for automation

Academic

Education

Associate Degree in Systems Analysis and Development

Uninter

2025 · expected graduation 2027

Certifications

Contact

Let's talk

Need a website, a management system, or want to see Verbi Beauty? Message me on WhatsApp: I reply personally and, if it makes sense, send a written proposal.

Message me on WhatsApp (opens in a new tab)