Frontend Systems Engineer – High-Performance Web (Equity)

Sift Stack, Inc.; California; On-site; USD 200,000 - 250,000; Full time

Benefits offered by this job

Equity

Benefits

Job summary

Sift is hiring a senior engineer to design and optimize browser-based data pipelines and interactive visualizations for high-frequency telemetry in aerospace-grade applications. You will collaborate across frontend, data, and backend teams to ensure correctness and performance at scale.

Located at Marina Del Rey, CA, the role emphasizes deep platform knowledge, memory and thread management, and developing tools that push the browser beyond its comfort zone.

Qualifications

• 7+ years building software for the web with deep platform understanding.
• Strong TypeScript skills in React environments and judgement on when not to use React.

Responsibilities

• Design and optimize data pipelines that run in the browser, using Web Workers and binary data processing.
• Build interactive visualizations for time-series telemetry, FFT, maps, and scatter plots with performance constraints.
• Solve performance bottlenecks by optimizing rendering, threading, and memory management across large data buffers.
• Architect composable UI systems that preserve data fidelity with high-precision timestamps and cross-stack collaboration with backend engineers.

Skills

Web performance

TypeScript

React

Systems thinking

Tools

WebWorkers

WebGL

React

TypeScript

D3.js

Go

WebAssembly

Job description

Sift is hiring a senior engineer to design and optimize browser-based data pipelines and interactive visualizations for high-frequency telemetry in aerospace-grade applications. You will collaborate across frontend, data, and backend teams to ensure correctness and performance at scale.

Located at Marina Del Rey, CA, the role emphasizes deep platform knowledge, memory and thread management, and developing tools that push the browser beyond its comfort zone.