This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Desenvolvedor Fullstack DotNet + Angular Sênior based in Brazil. Join a technology project within the financial services sector, contributing to the development and evolution of enterprise-grade applications. In this senior role, you will combine backend expertise in C# and .NET with frontend development using Angular to deliver secure, scalable, and high-availability solutions. You will work on complex system integrations, connecting financial platforms, enterprise applications, external services, and legacy systems through robust APIs and messaging technologies. Your contributions will extend across software architecture, database optimization, automated testing, and continuous delivery. Collaborating with multidisciplinary teams, you will help establish engineering best practices and drive the continuous improvement of production environments. This fully remote, independent contractor opportunity is ideal for an experienced developer who values technical ownership, collaboration, and solving complex business challenges.