Staff Frontend Engineer, Systems

The role

You will design and optimize browser-based data pipelines and build interactive visualizations for time-series telemetry. You will solve performance problems involving memory management, thread coordination, and architectural decisions for large datasets.

What you will do

• Design and optimize data pipelines that run in the browser
• Build interactive visualizations for time-series telemetry, FFT frequency analysis, geographic mapping, and scatter plots
• Solve performance problems by bypassing React's render cycle and coordinating worker thread pools
• Manage memory across large binary buffers
• Architect composable UI systems for technical users
• Collaborate with backend engineers on API design, binary serialization formats, and query semantics

Required qualifications

• 7+ years building software for the web
• Strong TypeScript skills
• Comfort working in a React codebase
• Systems-level intuition regarding memory layout, thread coordination, caching strategies, and data serialization formats
• Experience building for correctness under constraint

Nice to have

• Experience with GPU-accelerated rendering in the browser (WebGL, WebGPU, Canvas 2D optimizations)
• Technical visualization at scale (D3, ECharts, custom renderers)
• Hands-on work with binary data formats (Arrow, Parquet, protobuf, FlatBuffers) or columnar data processing
• Background in Web Workers, SharedArrayBuffer, OPFS, or other browser threading/storage APIs
• Experience in domains where data correctness is non-negotiable: aerospace, scientific computing, medical devices, financial systems, or similar
• Projects where you had to build infrastructure that didn't exist yet

Benefits

• Equity
• Benefits

Before you apply

• U.S. Person Required: Must be a U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee in compliance with ITAR / EAR regulations

About the company

Sift is the data infrastructure platform for hardware engineering teams. Founded by former SpaceX engineers, it turns high-frequency telemetry into engineering insights for mission-critical systems.