Staff Software Engineer, Backend

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Software Engineer, Backend based in Canada.

This is a high-impact technical leadership role focused on building and scaling AI-native backend systems that power next-generation product experiences. You will act as a key architect and hands-on engineer, shaping the technical direction of ambitious 0-to-1 initiatives while ensuring long-term scalability and system reliability. The role blends deep backend engineering expertise with product thinking, requiring strong judgment in turning ambiguous ideas into clear, buildable architectures. You will spend significant time designing systems, building proof-of-concepts, and directly contributing code to solve complex technical challenges. In parallel, you will act as a multiplier for the engineering team by unblocking work, improving system design quality, and raising the overall engineering bar. This position is ideal for someone who thrives in fast-moving environments, enjoys working at the intersection of AI and backend systems, and takes ownership of both technical strategy and execution.