Português

Kael Santini

Senior Ruby on Rails Developer

Software developer with 15+ years of experience in web applications, including Ruby on Rails since 2019. I develop and maintain sensitive, business-critical banking systems every day. I also conceived, built and shipped three products of my own.

Products

simplifica.work

Creator and maintainer

CRM and event management platform for venues and event businesses. Leads, WhatsApp conversations, visit scheduling, bookings, contracts and event calendars live in a single workflow. Built with Ruby on Rails, Hotwire and PostgreSQL.

Rachide

Creator and maintainer

Splits group expenses for shared costs such as trips, rentals and events. Available on the web and packaged for Android and iOS.

nafrente.live

Creator and maintainer

Public topic competition where users submit and vote on trending topics, with payment integration for platform features and participation.

Experience

DESYS Finance

Senior Ruby on Rails Developer, Jan 2024 to present

Financial and banking application with API integration to the core business layer. Mobile-first layout, packaged for multiple platforms.

Ruby on Rails, PostgreSQL, RSpec, iOS and Android, Bootstrap, GitHub, CI, Docker

EasyLemon

Ruby on Rails Developer, 2023 to 2024

SaaS platform for productivity and workflow automation, built on Rails 7 conventions. Hotwire and Turbo Streams delivered real-time interface updates across the system with minimal JavaScript and no heavy frontend framework.

Ruby on Rails 7, PostgreSQL, Hotwire, Turbo, Bootstrap, GitHub, CI

CGS Móveis

Ruby on Rails Developer, 2021 to 2023

Order management system for a furniture factory, synchronized with a remote system. Well tested, with a complex data structure.

Ruby on Rails, PostgreSQL, RSpec, Bootstrap, GitHub, CI

Earlier experience

Tech stack

Education