Description
At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work.
The Apps & Experiences (AppEx) organization powers the unified web user experience (Snowsight) for Snowflake. Every major Snowflake customer interacts with our platform through these surfaces, making AppEx central to both customer satisfaction and revenue growth.
As a Staff Software Engineer, you will own the strategy, build the tooling, and drive the culture needed to keep Snowsight fast. You will partner across our platform and product teams to make performance a default rather than an afterthought.
Responsibilities:
- Define and drive the web performance strategy for Snowsight, setting goals grounded in real user metrics.
- Build and maintain performance infrastructure, including RUM/synthetic monitoring pipelines, regression detection in CI, bundle analysis, performance dashboards, and alerting.
- Identify and fix systemic performance bottlenecks across the application lifecycle.
- Optimize build and delivery, working with the team on bundle size, tree-shaking, chunk splitting strategies, CDN caching, and resource prioritization.
- Establish performance budgets and guardrails integrated into CI/CD.
- Partner with product teams to design performance-aware architectures for new features.
- Mentor engineers across the org on performance best practices.
- Represent Snowflake's frontend performance perspective in cross-org architectural decisions.
Requirements:
- 8+ years of software engineering experience, with deep expertise in web performance for large-scale, complex web applications.
- Expert-level JavaScript/TypeScript and React knowledge.
- Strong understanding of browser performance fundamentals.
- Experience designing and operating RUM and synthetic performance monitoring at scale.
- Deep knowledge of build tooling and delivery optimization.
- Experience with large dataset rendering.
- Strong communication and influence skills.
- Ability to work on-site at our Bellevue, WA or Menlo Park, CA offices.
Preferred Qualifications:
- Familiarity with server-side rendering, streaming SSR, or edge rendering patterns and their performance implications.
- Familiarity with browser engines or internals.
- Contributions to web performance standards, browser APIs, or open-source performance tooling.
- Experience with observability platforms and building internal performance tooling.
- Background in data-intensive UIs.