Sr. Software Engineer - .NET with ReactJS (FullStack)
Posted Apr 16, 2026
As a Sr. Software Engineer at Coupa, you will play a crucial role in designing elegant solutions for global payment orchestration and financial connectivity by collaborating with Product and Dev teams. Your responsibilities will include:
- Architect & Build: Work closely with teams to design solutions for global payment orchestration and financial connectivity. - Technical Leadership: Mentor other engineers to drive a culture of excellence, curiosity, and 'ownership' of the code. - Solve Complex Problems: Optimize for high-volume transactions, horizontal scaling, and high availability. - Operational Excellence: Act as a technical escalation point for production issues to ensure the 'mission-critical' promise is upheld. - Drive Best Practices: Advocate for SOLID principles, robust TDD, and clean architectural patterns. To excel in this role, you should bring:
- 5+ Years of Experience: Demonstrated proficiency in software development, with a preference for candidates skilled in .NET and Ruby on Rails. - The Stack: Working knowledge of .NET/Core with expertise in C# and VB.NET, Ruby on Rails, React, and TypeScript. - Data Expertise: Proficiency in T-SQL and MS SQL Server, including expertise in database design and performance tuning. - Data Transformation Skills: Hands-on experience with XML, XSLT, XPath, and LINQ for XML (essential for bank messaging formats). - Cloud & Scale Experience: Background in building for AWS within a distributed microservices-oriented architecture. - Security Mindset: Familiarity with digital signatures, encryption, and secure file transport is a plus. Coupa values equal opportunity and offers an inclusive work environment where decisions related to hiring, compensation, training, and performance evaluation are made fairly. Recruiters' inquiries or resumes will not be accepted. By applying, you acknowledge Coupa's Privacy Policy and understand that your personal data will be collected for recruitment purposes. If you are interested in joining Coupa as a Sr. Software Engineer, please click on Apply to know more. As a Sr. Software Engineer at Coupa, you will play a crucial role in designing elegant solutions for global payment orchestration and financial connectivity by collaborating with Product and Dev teams. Your responsibilities will include: