Senior Back-end Engineer

Job description

Overview We are looking for a Senior Back‑end Engineer to design and build scalable, secure, and high‑performance backend systems that power modern SaaS applications. In this role, you will lead the architecture and development of .NET‑based microservices, define APIs that align with frontend workflows, and contribute to cloud‑native solutions on Azure. You will work closely with cross‑functional teams to deliver reliable backend services that support real‑time user experiences, AI‑driven capabilities, and enterprise‑grade platforms. Primary Location: Across Canada or USA Work Model: Fully Remote: Employment Type: Contractor: Vacancy Status: New: RESPONSIBILITIES: - Design and implement scalable backend architectures supporting frontend SaaS applications using .NET microservices - Define and maintain API contracts aligned with frontend workflows and UI data requirements - Lead the design of microservices for knowledge base management, agent configuration, integrations, and chat services - Architect and implement secure authentication and authorization services using enterprise identity solutions - Build high‑availability REST and event‑driven APIs to support real‑time user interact...