A global leader in digital commerce is seeking a Senior Software Architect to design and scale next-generation e-commerce platforms that power millions of secure, real-time transactions daily. This role is ideal for a hands-on architect who thrives at the intersection of scalable systems design and modern full-stack development. What You’ll Do • Architect and optimize high-availability platforms that process massive volumes of transactions with speed and accuracy • Lead the design and integration of payment gateways, APIs, and transaction workflows • Stay hands-on with coding—primarily in C#, .NET Core, React, and modern JavaScript frameworks • Build cloud-native, microservices-based solutions that scale horizontally under heavy load • Partner with engineering teams to deliver performant, secure, and user-friendly platforms • Guide system implementations from concept through deployment, ensuring architectural integrity Your Background • 10+ years of software engineering and system architecture experience • Expertise in high-volume transaction platforms, payment systems, or e-commerce • Strong proficiency with C#, .NET Core, React, JavaScript/TypeScript, RESTful APIs • Skilled in cloud services (Azure or AWS), containerization, and microservices • Experience with third-party payment platforms (Stripe, Adyen, etc.) a strong plus • Excellent problem-solving skills in complex, high-pressure environments Why This Role Matters You’ll shape the backbone of a platform handling billions in annual transactions—where performance, reliability, and user trust are paramount. This is a chance to put your architectural vision into action on a system that impacts global commerce every single day. What’s Offered • Competitive salary and bonus • Hybrid work flexibility (Philadelphia area) • Full health, dental, vision, and life insurance • 401(k) with company match • Generous paid time off and holidays