Cielo · Stelo

Developed and maintained user-facing front-end applications with Vue.js, HTML5 and CSS3 at Cielo. I was responsible for the merchant-onboarding (credenciamento) team, building the entire system for Stelo — a brand acquired by Cielo after major success in Brazil's small-business payment-terminal market.

We supported two Black Fridays successfully, going head to head with Mercado Pago and PagSeguro, giants of the sector. The platform integrated payment methods, transaction control, e-commerce, reports and the bank branches of Banco do Brasil and Bradesco. I worked in an Agile/Scrum team, integrated and consumed GraphQL APIs and implemented CI/CD pipelines for streamlined deployment.