Senior Software Engineer - Payment Processing

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer - Payment Processing based in Brazil. We are seeking an experienced Senior Software Engineer to help modernize and scale a critical payment processing platform. In this role, you will tackle complex engineering challenges involving transaction tracking, financial reconciliation, fraud detection, and payment operations. You will design and implement automated solutions to replace manual processes while improving system reliability, security, and performance. Working across multiple integrations and interconnected platforms, you will help build a more unified and scalable payments architecture. You will collaborate with experienced engineering teams to address technical debt and strengthen core transaction-processing capabilities. This is an opportunity to make a significant impact on a growing payments ecosystem within a collaborative, remote-first environment.