← Selected work

Case study 02 / Product design & engineering

B-Boss ClubOne product. Different sides of the business.

Connecting booking and daily operations through role-specific interfaces and shared React foundations.

My role
Product direction, UX/UI & implementation
Status
Independent product · Pilot testing
Tools
React · TypeScript · TanStack · Fastify · PostgreSQL

01 / Context

A booking is only one part of the experience.

A customer wants to find a barbershop and book a service. The business needs to manage attendance, staff and its day-to-day operation. B-Boss brings these different perspectives into one product ecosystem.

I lead this independent product across UX, interface design and implementation. The scope includes a customer application, a business dashboard, barber and administration interfaces, and a shared API.

The design challenge

Keep each person’s next action clear while connecting the customer journey to business operations.

Customer
Find a barbershop and book a service.
Business
Understand attendance and daily activity.
Barber & admin
Work within dedicated operational interfaces.

02 / Design decisions

Organize around the person doing the work.

B-Boss business dashboard with attendance summaries and activity charts, populated with fictitious data.
Business dashboard · Fictitious data. View full-size capture ↗

The business dashboard is a useful cross-section of the product: reporting, navigation and status need to remain understandable together. Three decisions shape that experience.

01 Separate workspaces, shared patterns

The customer and business journeys live in separate applications. Shared UI and data packages keep recurring patterns consistent while allowing each workspace to focus on its own tasks.

02 Put operational context beside the numbers

The dashboard pairs attendance summaries with a date filter, activity over time and unit comparisons. The design makes the reporting period visible so a number can be understood in context.

03 Make states distinguishable

Confirmed, validated, cancelled and expired passes appear as explicit labels. Color supports the distinction, while text keeps the meaning accessible without relying on color alone.

03 / Engineering

Shared foundations across the product.

The Nx workspace brings the applications and shared packages together. React and TypeScript power the interfaces; TanStack Router and Query handle routing and server state. The API uses Fastify, Prisma and PostgreSQL.

Customer · Business · Barber · Admin
Shared UI · Schemas · Authentication
Fastify API → Prisma → PostgreSQL

The trade-off is coordination: changes to a shared contract can affect several applications. Explicit schemas and shared packages make those dependencies visible instead of letting each app define its own version.

04 / Outcome & boundaries

From shared patterns to pilot testing.

The product has reached pilot testing. The work brings product flows, implemented interfaces and shared contracts into the same development process. Feedback so far comes from conversations; formal usage and business-impact measurements are still ahead.

What is demonstrated

Implemented interfaces, separate workspaces and a shared technical foundation. The source repository is private.

Next validation

Validate complete booking and operational journeys with pilot participants, then use observed task completion and feedback to guide the next iteration.

Next case study

Allumove ↗

Engineering opportunities

Let’s build
what comes next.

I’m interested in software engineering roles focused on applied AI, agent workflows, developer tooling and product development. Based in Guarulhos, Brazil; comfortable working in English.