Senior Software Development Engineer, Amazon Personalization - Customer 360

We're looking for a technical leader to help architect a system that has never existed before — one that gives AI persistent, compounding memory at organizational scale. This is not an incremental improvement to an existing service. It's a new foundational capability that will fundamentally change how work gets done. You'll be one of the founding engineers on this team. The architecture decisions you make in the next six months will define the system for years.

Own the end-to-end architecture for knowledge extraction, real-time retrieval, and cross-domain reconciliation systems.

Lead design and implementation of distributed systems handling millions of events per day with sub-second retrieval latency.

Make foundational choices about storage, indexing, and retrieval that will scale from day-one prototype to company-wide production.

Define technical standards, code review practices, and engineering culture for a team that's forming now.

Partner directly with Applied Scientists to translate research breakthroughs into production-grade systems.

Drive technical strategy with senior leadership visibility — your decisions shape the product roadmap.

Design systems that handle temporal decay, conflicting knowledge sources, and privacy-preserving retrieval at scale.

Mentor junior engineers and establish the patterns that the rest of the team will build on.