Nerv Test — Time Rankings
Role
Design Engineer
Responsibilities
Product conception, interface design, technical architecture, and full-stack development with AI
Context
Internal project — Flexpro Sistemas
CONTEXT
Physical dynamic transformed into a competitive data asset
Flexpro holds events where the “Nerve Test” — a coordination and precision challenge — is used for engagement. Despite being competitive, the operation was manual, resulting in times recorded on paper, a lack of reliable ranking, and lost commercial opportunities.
THE PROBLEM
The lack of digital infrastructure led to measurement imprecision, difficulty in identifying correct rankings, and a disconnect between performance and participant data. Without precision, there is no credibility; without data, there is no continuity of value.
OBJECTIVE
Build an application to record times with millisecond precision, generate automatic real-time rankings, display a live podium, and structure participant data as qualified leads.
APPROACH AND AI IN PRACTICE
The focus was on the minimum necessary for perfect live operation. The Figma design was integrated via MCP with development using Claude Code. The AI acted as a co-builder, executing ranking logic, APIs, and data manipulation in record time.
ENGINEERING DECISIONS
Local Storage (JSON)
Using records.json to eliminate external infrastructure dependence and simplify deployment.
Integrated Stopwatch
Time controlled directly in the admin panel, eliminating manual transcription errors.
Centralized Operation
Data entered by the operator to ensure consistency and speed during the event.
Figma → Code
Using MCP to ensure visual fidelity and drastically reduce rework.
USER EXPERIENCE
We prioritized performance communication: a real-time visual stopwatch, dynamic podium (top 3), and automatically updated ranking. The system stops being just a record and becomes part of the attraction.
RESULTS
Total Precision
Complete elimination of measurement errors and manual operation.
Lead Generation
Structured participant database exportable with one click for commercial use.
MY ROLE
I worked end-to-end: conception, design, architecture, and complete development with AI. I transformed an offline dynamic into a real-time data and competition system.