AgileEngine in the United States is seeking a Senior Backend Engineer to architect and build core AdTech platform systems. You will design high-throughput, low-latency services for campaign delivery, targeting, attribution, and partner integrations using Python, Django, Kubernetes, and AWS. This senior role demands shaping technical direction, owning systems end-to-end, and mentoring other engineers in a fast-paced, product-driven environment with remote-work flexibility.