Senior .NET Developer / SaaS Experience Required / Remote / EST

This leading B2B wholesale-ecommerce platform helps brands and retailers streamline wholesale order, inventory, and catalog workflows through a unified, intuitive digital platform. Their platform enables brands to create digital catalogs and line-sheets, allow retailers to place orders 24/7 with live inventory visibility, manage invoices/payments, and access analytics and reporting to support wholesale operations and merchandising strategy. For retailers, they simplify the purchasing process — removing the need for back-and-forth calls or emails, offering one place to discover new brands, place orders, reorder best-sellers, and track inventory and shipments. For brands, it serves as a “Wholesale-as-a-Service” partner — providing integrations with ERP systems, support from account managers and technical staff, and tools to grow reorder rates, pre-book orders, and overall B2B revenue. They are seeking a Senior .NET Developer with strong SaaS product experience to join their product team. In this role, you will design, develop, and scale features for our cloud-based wholesale platform, collaborating closely with design, and engineering teams to build tools that power the growth of global retail brands. The ideal candidate has deep experience working on modern SaaS applications, strong backend expertise in C#/.NET, and solid front-end experience with React and GraphQL. Required Skills & Experience • 5–7 years of professional software development experience • MUST HAVE strong experience developing and scaling SaaS products • Advanced proficiency in C#, .NET, and modern API development • Hands-on experience with React and GraphQL • Strong experience with PostgreSQL or other relational databases • Solid understanding of cloud-native development using AWS • Experience with distributed systems, microservices, and event-driven architecture is a plus • Strong problem-solving skills, attention to detail, and ability to work in collaborative, agile environments What You Will Be Doing Tech Breakdown: • 20% maintenance • 80% new development Daily Responsibilities • Design, build, and maintain scalable SaaS features and services using C#, .NET, and PostgreSQL • Develop and optimize front-end functionality using React and GraphQL • Build APIs, data layers, and integrations to support wholesale workflows, real-time inventory visibility, digital line sheets, retailer ordering, and analytics • Collaborate with cross-functional teams to translate product requirements into technical architecture and deliverables • Contribute to code reviews, architecture discussions, and best-practice standards for SaaS application development • Optimize application performance, reliability, and scalability across AWS-hosted environments • Troubleshoot complex issues across the full stack and deliver high-quality solutions • Support continuous improvement of DevOps, CI/CD pipelines, monitoring, and automation Office Location • 100% Remote • Office based in Philadelphia, PA • Working in EST required The Offer • $120-160K base You Will Receive The Following Benefits • Medical Coverage • Dental Coverage • 401K • PTO Applicants must be currently authorized to work in the US on a full-time basis now and in the future. Posted By: Caitlin Carrion Apply tot his job