Coupa makes margins multiply through its community-generated AI and industry-leading total spend management platform for businesses large and small. Coupa AI is informed by trillions of dollars of direct and indirect spend data across a global network of 10M+ buyers and suppliers. We empower you with the ability to predict, prescribe, and automate smarter, more profitable business decisions to improve operating margins. Why join Coupa? 🔹 Pioneering Technology: At Coupa, we're at the forefront of innovation, leveraging the latest technology to empower our customers with greater efficiency and visibility in their spend. 🔹 Collaborative Culture: We value collaboration and teamwork, and our culture is driven by transparency, openness, and a shared commitment to excellence. 🔹 Global Impact: Join a company where your work has a global, measurable impact on our clients, the business, and each other.  Learn more on Life at Coupa blog and hear from our employees about their experiences working at Coupa.  The Impact of a Sr Backend Software Engineer at Coupa: As a Senior Backend Software Engineer at Coupa, you will play a crucial role in designing complex server-side architectures, supporting customer environments at a deep technical level, and optimizing overall system throughput. You will act as an autonomous technical owner for backend domains, helping scale Coupa's databases and APIs while systematically mentoring junior backend developers. WHAT YOU’LL DO: * Server-Side Design: Translate complex business requirements into robust backend architectural designs, modeling secure, high-throughput microservices. * Database Performance Tuning: Own the performance, caching (using Redis), and scaling of relational database architectures (SQL Server), diagnosing complex queries, lock contention, and indexing issues. * Asynchronous Messaging: Integrate resilient distributed processing workflows using queue systems and event streams (e.g., Kafka, RabbitMQ). * Production Excellence: Coordinate across global locations to plan, optimize, and safely execute high-quality database migrations and backend service releases. * Mentorship: Provide consistent technical guidance, conduct architecture design reviews, and mentor backend team members on advanced C# and concurrency patterns. WHAT YOU WILL BRING TO COUPA: * Experience: 5+ years of professional backend development experience, with a heavy focus on multi-tenant SaaS architectures. * Core Technical Skills: * Expertise in C#, .NET Core, asynchronous programming, and building high-performance APIs. * Strong hands-on experience with database design, complex query optimization, and memory profiling. * Proven experience working with distributed systems, REST/GraphQL interfaces, and event-driven patterns. * Familiarity with cloud infrastructures (AWS or Azure), Docker, and Kubernetes deployment workflows. * Soft Skills: Outstanding communication and collaboration skills, with a track record of guiding technical initiatives and upskilling other backend developers. Coupa complies with relevant laws and regulations regarding equal opportunity and offers a welcoming and inclusive work environment. Decisions related to hiring, compensation, training, or evaluating performance are made fairly, and we provide equal employment opportunities to all qualified candidates and employees.  Please be advised that inquiries or resumes from recruiters will not be accepted. By submitting your application, you acknowledge that you have read Coupa’s Privacy Policy and understand that Coupa receives/collects your application, including your personal data, for the purposes of managing Coupa's ongoing recruitment and placement activities, including for employment purposes in the event of a successful application and for notification of future job opportunities if you did not succeed the first time. You will find more details about how your application is processed, the purposes of processing, and how long we retain your application in our Privacy Policy.