Senior Platform Engineer

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Platform Engineer based in Canada. As a Senior Platform Engineer, you will design, build, and operate the backend systems that power a next-generation marketing technology platform. You will take ownership of critical infrastructure, including query execution, journey orchestration, and data delivery, ensuring reliable and scalable performance as the business grows. Working across distributed systems, cloud data warehouses, APIs, and real-time data capabilities, you will solve complex engineering challenges with measurable customer impact. You will play a key role in strengthening platform reliability, security, observability, and operational efficiency while helping shape the evolution of AI-powered marketing products. This role offers significant autonomy in a fast-paced, founder-led environment where engineers are encouraged to experiment, challenge assumptions, and deliver meaningful results. You will collaborate with highly technical teammates, contribute to architectural decisions, and help raise engineering standards through mentorship and knowledge sharing. Ideal for an experienced backend engineer passionate about emerging AI technologies, this opportunity combines technical ownership, continuous learning, and the chance to build systems used by leading global brands.