Desenvolvedor Full Stack jobs in Brazil

About the Role StaffingAbroad is seeking a Principal Backend Engineer / Senior Software Engineer to join a #1 US-based FinTech & Crypto company. This role is ideal for a highly skilled backend developer who excels in C# / .NET and has a strong focus on writing maintainable, scalable, and secure code. You will play a key role in shaping architecture, ensuring system performance, and embedding best practices while working in a fast-paced and innovative environment.

This is a 100% remote, full-time role Salary $5.000USD to $7.000 USD

• Develop and Maintain Applications: Build, enhance, and maintain secure, scalable backend services using C# / .NET and integrate with APIs like Plaid, Dwolla, and Treasury Prime.
• Shape System Architecture: Contribute to system design, ensuring performance, scalability, and security across FinTech applications.
• Write Quality Code: Implement and test maintainable, well‑documented code, with a focus on automation and software best practices.
• Support Production Systems: Monitor and troubleshoot production applications to ensure high availability and quick issue resolution.
• Collaborate Across Teams: Work closely with front‑end, QA, product, and IT teams, while mentoring junior engineers.
• Focus on Security and Compliance: Embed security best practices and maintain compliance with FinTech regulations.

• Strong Technical Expertise: Solid foundation in design patterns, software development best practices, and principles like SOLID and Clean Code.
• Proficiency in C# / .NET, ASP.NET MVC / WebAPI, and Object‑Relational Mappers (ORMs).
• Strong understanding of MSSQL database design and optimization.
• Familiarity with asynchronous microservices architecture and distributed systems.
• Experience with modern front-end and server-side technologies such as Node.js and React.
• Commitment to Software Quality: Hands‑on experience with unit testing, mocking, integration testing, and ensuring code coverage.
• Familiarity with CI / CD pipelines, particularly in Azure DevOps.
• Proficient in version control systems, especially Git.
• Experience and Education: 6+ years of back-end software development experience; Bachelor's degree in Computer Science or a related field (preferred).
• Collaboration and Communication: Excellent written and verbal communication skills; Ability to work effectively with team members and stakeholders; Enthusiasm for contributing to a collaborative, dynamic team environment.
• Cultural Fit: Passion for innovation, accountability, and teamwork; Alignment with a culture that prioritizes excellence in FinTech and Crypto solutions.
• Plusses Include Experience with iDesign architecture methodology.
• Familiarity with cloud platforms such as Azure, including their tools and services.