Sr. Software Engineer - .NET with ReactJS (FullStack) - 11370

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 Mission The CoupaPay team is the bridge between our customers and the global financial ecosystem. We build the mission-critical infrastructure that allows businesses to initiate payments directly from the Coupa platform. This isn't just about moving data; it’s about moving billions of dollars securely and reliably. You will tackle complex payment formats, advanced message security (digital signatures, encryption), and diverse transport layers (SFTP, APIs), ensuring that every cent reaches its destination safely The Impact of a Sr. Software Engineer at Coupa: As a Sr. Software Engineer, you will be a key architect of our scaling strategy. We are currently navigating the exciting transition of balancing a powerful consolidated codebase with the agility of microservices. What You'll Do: Architect & Build: Collaborate with Product and Dev teams to design elegant solutions for global payment orchestration and financial connectivity. Technical Leadership: Mentor other engineers, driving a culture of excellence, curiosity, and "ownership" of the code. Solve Complex Problems: optimizing for high-volume transactions, horizontal scaling and high availability. Operational Excellence: Serve as a technical escalation point for production issues, ensuring our "mission-critical" promise is kept. Drive Best Practices: Advocate for SOLID principles, robust TDD, and clean architectural patterns. What You Will Bring to Coupa: 5+ Years of Experience: High-level proficiency in software development, with a strong preference for candidates who have mastered both .NET and Ruby on Rails exp will be added advantage. The Stack: Working knowledge of .NET/Core with fluency in both C# and VB.NET, Ruby on Rails, React, and TypeScript. Data Expert: Fluency in T-SQL and MS SQL Server, including deep dives into database design and performance tuning. Data Transformation: Hands-on experience with XML, XSLT, XPath, and LINQ for XML (essential for bank messaging formats). Cloud & Scale: Experience building for AWS within a distributed microservices-oriented architecture. Security Mindset: Familiarity with digital signatures, encryption, and secure file transport is a major plus. Core Competencies:  Architectural Thinking: Deep understanding of OOP, SOLID, and design patterns.  Attention to Detail: In payments, a single misplaced character matters. You take pride in "getting it right”.  Communication: Impeccable English (written/verbal) and the ability to explain complex technical trade- offs to non-technical stakeholders 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. 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.