About the RoleStaffingAbroad 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 $8.000 USDWhat You Will Do- 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.What You Will Need- 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.