At Nobe Sistemas, I delivered 40+ features in the payroll-deductible loan module of a multi-tenant SaaS ERP used by Brazilian municipalities. I worked across the feature lifecycle, from data modeling to deployment.
I built and maintained versioned REST APIs for a mobile app, including token authentication, loan simulation, payslips, and outstanding-balance endpoints. I also integrated the system with government services and banking files.
I modeled regulated financial data in PostgreSQL with tenant isolation, audit trails, and idempotent migrations. Sidekiq and Redis workflows handled monthly closing, batch imports, and report generation.
At Madeireira Ideal, I improved the internal sales management system, reducing processing time by 25%. Earlier, at eStracta, I migrated an application layout to Bootstrap 5 and contributed to a 20% increase in customer satisfaction.
