This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Head of Backend based in Canada. This is a hands-on engineering leadership opportunity within a fast-growing productivity SaaS environment.You will lead the evolution and scaling of a backend function while remaining deeply involved in production engineering.The role focuses on consolidating microservices, improving performance, reliability, security, and enabling continued product growth.You will design robust APIs, build integrations, and create internal tooling that improves both developer and operational efficiency.Working within a small, highly capable team, you will have significant ownership and direct influence over technical and product decisions.The position combines architectural leadership, hands-on development, engineering standards, and occasional customer-facing troubleshooting.It is an on-site role in Canada for an experienced engineer who thrives in high-ownership, fast-moving environments.