Staff Frontend Engineer, Systems
At SIFT we’re redefining how modern machines are built, tested, and operated. Our platform gives engineers real-time observability over high-frequency telemetry—eliminating bottlenecks and enabling faster, more reliable development.
SIFT was born from our work at SpaceX on Dragon, Falcon, Starlink, and Starship—where scaling telemetry, debugging flight systems, and ensuring mission reliability demanded new infrastructure. Founded by a team from SpaceX, Google, and Palantir, SIFT is built for mission-critical systems where precision and scalability are non-negotiable.
As an early engineer at SIFT, you won’t just write code—you’ll help define the architecture, shape the product, and influence the culture of a company focused on solving real engineering problems. If you’re looking for complex technical challenges and the opportunity to build foundational systems supporting complex machines from the ground up, we want to hear from you.
In This Role, You'll:
- Design and optimize data pipelines that run entirely in the browser: Web Workers processing Apache Arrow binary data, persistent caching in the Origin Private File System, and multi-layer invalidation strategies that keep the UI responsive while handling datasets that would crash most web apps.
- Build interactive visualizations for time-series telemetry, FFT frequency analysis, geographic mapping, and scatter plots, and many more, each with distinct performance profiles and correctness constraints. When your users are debugging flight hardware, a rendering inaccuracy is a mission-critical problem, not a cosmetic one.
- Solve performance problems that frameworks can't: bypassing React's render cycle for 60fps interactions, coordinating worker thread pools, managing memory across large binary buffers, and making architectural decisions about what belongs on the main thread vs. off it.
- Architect composable UI systems for technical users who need full data fidelity. Not simplified dashboards, but tools...