Desenvolvedor Fullstack DotNet +Angular Sênior

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. Accountabilities - Develop, maintain, and enhance fullstack enterprise applications using C#, . NET Framework, . NET Core/. NET 8+, ASP. NET MVC, ASP. NET Core, Web APIs, and Angular. - Contribute to system architecture decisions, development standards, and engineering best practices to deliver scalable, secure, and highly available applications. - Design, develop, and maintain integrations between internal systems and external platforms using REST APIs, SOAP services, and messaging technologies. - Implement authentication and authorization mechanisms using OAuth2, JWT, and other industry-standard security protocols. - Build and support complex integrations involving ERPs, CRMs, financial platforms, payment gateways, external providers, and legacy systems. - Investigate and resolve system communication issues, integration failures, and application performance bottlenecks.

- Design, develop, and optimize SQL Server databases, including data models, stored procedures, functions, views, and complex queries. - Apply service-oriented architecture, microservices, Clean Architecture, SOLID principles, design patterns, Domain-Driven Design (DDD), and CQRS where appropriate. - Develop and maintain unit and integration tests to ensure software reliability, maintainability, and quality. - Participate in code reviews, promote knowledge sharing, and help ensure consistent engineering standards across the team. - Support CI/CD pipelines, cloud-based environments, containerized applications, and the continuous deployment and maintenance of production systems. - Collaborate with technical teams and business stakeholders to translate requirements into effective solutions and deliver results in a dynamic environment. Requirements - At least five years of proven professional experience across the required technical stack. - Strong backend development skills in C#, . NET Framework, . NET Core/. NET 8+, ASP. NET MVC, ASP. NET Core, REST APIs, and Entity Framework. - Professional experience developing frontend applications with Angular. - Advanced SQL Server expertise, including stored procedures, functions, views, query tuning, and database modeling. - Solid understanding of microservices, Clean Architecture, SOLID principles, design patterns, Domain-Driven Design (DDD), and CQRS. - Experience with Git, Azure DevOps or GitHub Actions, CI/CD pipelines, and Docker. - Familiarity with cloud environments, particularly Microsoft Azure or AWS. - Experience developing and maintaining secure, scalable enterprise applications and integrations across multiple systems. - Strong troubleshooting and analytical skills, with the ability to address complex technical and performance challenges.