Sift Stack, Inc. is a software company founded in 2022 by Karthik Gollapudi and Austin Spiegel, both former SpaceX engineers who worked on programmes including Dragon, Falcon, Starlink, and Starship. The company builds Sift, a unified observability platform designed specifically for hardware sensor data. Sift ingests and structures telemetry from physical systems, enabling automated data review and real-time anomaly detection without requiring engineers to write custom code or manage multiple disparate tools.
The platform targets industries where hardware telemetry is both voluminous and mission-critical - primarily aerospace, defense, and robotics, with stated use cases spanning spacecraft and autonomous vehicles. Customers include K2 Space, Astranis, Astrolab, and JetZero. The company's founding premise is that legacy dashboards, scripts, and spreadsheets are ill-suited to the scale and complexity of modern machines, which can generate terabytes of sensor data, and that fragmented data pipelines introduce risk in mission-critical development and operations.
Sift's core technical domains include time-series data engineering, telemetry ingestion and structuring, anomaly detection, and hardware lifecycle analytics. The platform is designed to provide a structured, shareable, and auditable data layer that engineering teams can use across the full hardware lifecycle - from testing through to operation.