Staff Performance Engineer
Core
Own strategy for improving application performance across a modern investment management platform, optimizing browser rendering, client-server communication, and observability.
Role type
Staff Performance Engineer (Frontend)
Builds
Scalable approaches for measuring, monitoring, and maintaining frontend performance; tooling for browser instrumentation and synthetic testing.
Domain
Investment Management / Modern Web Platform
Deliverable
production ML models | product features | dashboards & analysis | infrastructure
Required skills
Browser rendering pipelines, JavaScript execution, React frameworks, Network behavior analysis, API interaction optimization, Real-user monitoring, Synthetic testing, Application observability, Debugging, Technical leadership
Preferred skills
High-performance data-intensive browser applications, Client-side data visualization (Apache Arrow, AG Grid, DuckDB-WASM), Large-scale data rendering optimization, Distributed systems, Core Web Vitals
Technologies
React, Apache Arrow, AG Grid, DuckDB-WASM, Perspective.js, D3, Vega/Vega-Lite, ECharts
Responsibilities
Own and drive frontend performance strategy across complex React applications; Analyze browser rendering behavior and optimize application performance; Identify inefficient API usage patterns and frontend bottlenecks; Measure, monitor, and improve real-user performance metrics; Build and enhance tooling for browser instrumentation and synthetic testing; Partner with engineering teams to optimize application architecture; Lead investigations into complex production performance issues; Mentor engineers and influence technical decisions.
Seniority
Staff, hands-on IC with strategic ownership