Sr Software Engineer - Full Stack (.NET/React)

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 Senior Full Stack Software Engineerat Coupa:
As a Senior Full Stack Software Engineer at Coupa, you will be a key driver in delivering end-to-end features for our global Business Spend Management (BSM) platform. You will have technical ownership of features from database schema design and highly performant .NET Core APIs, down to the responsive React user interfaces. You will act as an autonomous technical owner, helping scale our systems while mentoring other engineers.

What You'll Do:

• End-to-End Feature Delivery: Design, develop, and deploy robust, scalable web application features using C# / .NET 10 on the backend and React 18 / TypeScript on the frontend
• Client-Side Architecture: Design clean, reusable React UI components and manage complex client-side state, integrating seamlessly with Coupa's custom UI design system
• API & Database Design: Build secure RESTful APIs and model relational databases (SQL Server), writing highly optimized queries and managing transaction performance
• Production Excellence: Coordinate across global locations to plan, optimize, and safely execute high-quality database migrations and product releases
• Mentorship & Code Reviews: Conduct rigorous code reviews across the entire stack, promoting clean code patterns, automated testing (Jest/xUnit), and mentoring mid-level developers
  
  

What You Will Bring to Coupa:

• Experience: 5+ years of professional software development experience in an enterprise SaaS environment
• Backend Mastery: Deep hands-on experience with C#, .NET Core, asynchronous programming, and Web API design
• Frontend Mastery: Strong proficiency in React, Hooks, modern state management, TypeScript, and responsive CSS
• Database Skills: In-depth knowledge of database design principles (SQL Server or PostgreSQL), with a strong focus on query execution planning and performance tuning
• Modern DevOps: Experience with containerization (Docker), cloud infrastructure (AWS/Azure), and CI/CD pipelines
  
  

The successful candidate's starting salary will be determined based on permissible, non-discriminatory factors such as skills, experience, and geographic location.

At Coupa, we are 100% committed to creating and nurturing an environment that supports your physical, mental, and community well-being. We offer a comprehensive suite of benefits designed to help you and your family thrive:

Global Well-Being Perks (For All Employees Globally)

• Global Wellness Days: Enjoy two designated, company-wide paid wellness days off each year (typically the first Friday in March and the last Friday in September) so the entire global team can unplug, step away, and recharge together
• Birthday Time-Off: Celebrate your day! Coupa provides a paid day off on your birthday or another day of your choice within your birthday month
• Volunteer Time Off (VTO): Giving back is in our DNA. We offer 40 hours of paid VTO annually to support the community initiatives and volunteer programs you are passionate about
• Employee Assistance Program (EAP): Access free, confidential, 24/7/365 counseling and resources for emotional support, work-life solutions, financial advice, legal guidance, and support for new parents
• Business Travel Protection: Travel with peace of mind. Zurich Travel Assist provides medical, safety, pre-trip planning, and emergency support during any business travel
• Referral Bonus Program: Share the Coupa experience! Receive generous monetary referral bonuses when you successfully refer talented friends or acquaintances who are hired into open roles
  
  

Please note: In addition to these global well-being perks, Coupa offers highly competitive, location-specific benefits packages (which include comprehensive medical/dental insurance, retirement/pension plans, and life or accident protection) tailored to your primary work location. Your recruiter will walk you through the specific regional benefits package for this role during the interview process.


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.

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We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.