Staff Software Engineer

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Staff Software Engineer in USA new

Snowflake
Full time
Email

USA
10/01/2026
Report

Bellevue, WA

Responsibilities

Define and drive Snowsight’s web performance strategy using Core Web Vitals, custom interaction metrics, and data-rendering performance measures.
Build and maintain real-user monitoring and synthetic monitoring pipelines, CI regression detection, bundle analysis, dashboards, and alerting.
Identify and resolve systemic performance bottlenecks involving application loading, code splitting, React rendering, data fetching, caching, virtualization, streaming, memory, and CPU efficiency.
Optimize build and delivery performance through bundle-size improvements, tree-shaking, chunk splitting, CDN caching, and resource prioritization.
Establish performance budgets and CI/CD guardrails to detect regressions before release.
Advise product teams on performance-aware architectures, data-fetching patterns, rendering strategies, and progressive loading.
Mentor engineers, review critical performance paths, and promote organization-wide ownership of performance.
Represent frontend performance in cross-organizational architecture decisions involving APIs, services, and caching layers.

Requirements

8+ years of software engineering experience with deep web-performance expertise for large-scale web applications.
Expert JavaScript/TypeScript and React knowledge, including React rendering internals and performance diagnosis in large React codebases.
Strong understanding of browser performance fundamentals, rendering pipelines, main-thread scheduling, Web Workers, and browser performance profiling.
Experience designing and operating real-user and synthetic performance monitoring at scale, including custom metrics, percentile alerting, and regression anomaly detection.
Deep knowledge of build tooling and delivery optimization, including code splitting, tree-shaking, chunk strategies, lazy loading, CDN behavior, caching headers, and resource hints.
Experience with large-dataset rendering, virtualization, canvas/WebGL rendering, streaming or incremental rendering, and efficient DOM management.
Strong communication and influence skills, with the ability to set technical direction and build consensus across engineering and product stakeholders.
Experience in a platform or infrastructure role serving other engineering teams.
Ability to work on-site in Bellevue, WA or Menlo Park, CA.
Preferred: familiarity with server-side rendering, streaming SSR, edge rendering, browser engines or internals, web performance standards, browser APIs, open-source performance tooling, observability platforms, and data-intensive user interfaces.

Benefits

On-site work is required at the Bellevue, Washington or Menlo Park, California office.
Salary and benefits information is provided through the Snowflake Careers Site.

Salary: $200k - $288k/yr

Snowflake

**Snowflake is proud to be the Official Data Collaboration Provider for LA28 and Team USA.** Snowflake delivers the AI Data Cloud — a global network where thousands of organizations mobilize data with near-unlimited scale, concurrency, and performance. Inside the AI Data Cloud, organizations unit...

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