{"id":66310,"url":"https://alion.io/job/snowflake-staff-software-engineer-apps-and-experiences-platform-team","title":"Staff Software Engineer","company":{"id":96,"name":"Snowflake","domain":"snowflake.com","url":"https://alion.io/company/snowflake","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":85,"open_postings":50,"ghost_share":0,"stale_share":0.62,"repost_share":0,"time_to_fill_p50_days":50,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Menlo Park, United States","Bellevue, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":236000,"max":339200,"currency":"USD","period":"year","gross":null,"usd_annual":339200},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Anomaly Detection","optional":false},{"name":"Bazel","optional":false},{"name":"CI/CD","optional":false},{"name":"JavaScript","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"React.js","optional":false},{"name":"Snowflake","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"Webpack","optional":false},{"name":"Datadog","optional":true},{"name":"Grafana","optional":true}],"status":"live","first_seen_at":"2026-05-29T18:05:19Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-12T20:35:24Z","board_verified":true,"closed_at":null,"days_open":136,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":135},"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. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset - who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done.\nAbout the Team\nThe 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.\nWithin Appex, our team sits at the intersection of AI, platform, and user experience. We are on a mission to create an AI-first, scalable, maintainable, and extensible UI platform from which all Snowflake user experiences can be built. The team owns:\nThe serving layer that powers Snowsight, Snowflake CoWork, and UX features\n\nDeveloper tooling that enable our engineers to move fast and deliver\n\nFrontend infrastructure and shared services for product teams\n\nCI pipelines that ensure fast and reliable builds\n\nTesting and validation platform that maintains code and product quality\n\nThe monitoring and logging stack that ensures observability and trust\n\nWhat You Will Do\nSnowsight is a large, complex single-page application serving interactive analytics, data engineering, and AI workloads. As our user base and feature surface grow, we must treat performance as a first-class citizen. You will own the strategy, build the tooling, and drive the culture needed to keep Snowsight fast, and you'll partner across our platform and product teams to make performance a default rather than an afterthought.\nThis is a high-leverage role: the systems and practices you build will affect every page load, interaction, and data-rendering path in Snowsight. You will:\nDefine and drive the web performance strategy for Snowsight, setting goals grounded in real user metrics (Core Web Vitals, custom interaction metrics, time-to-visually-complete for data-heavy views).\n\nBuild and maintain performance infrastructure: RUM/synthetic monitoring pipelines, regression detection in CI, bundle analysis, performance dashboards, and alerting, making performance visible and actionable for every product team.\n\nIdentify and fix systemic performance bottlenecks across the application lifecycle: initial load, code splitting and lazy loading, rendering (React), data fetching and caching, large dataset rendering (virtualization, streaming), and runtime memory/CPU efficiency.\n\nOptimize build and delivery: work with the team on bundle size, tree-shaking, chunk splitting strategies, CDN caching, and resource prioritization (preload, prefetch, HTTP/2+ multiplexing).\n\nEstablish performance budgets and guardrails integrated into CI/CD so regressions are caught before they ship.\n\nPartner with product teams to design performance-aware architectures for new features, providing guidance on data-fetching patterns, rendering strategies, and progressive loading.\n\nMentor engineers across the org on performance best practices, conduct reviews of critical performance paths, and build a culture where teams own performance as a quality attribute.\n\nRepresent Snowflake's frontend performance perspective in cross-org architectural decisions (e.g., API design, service infrastructure, caching layers) where frontend impact is significant.\n\nWhat We’re Looking For\nOur ideal Staff Software Engineer will have:\n8+ years of software engineering experience, with deep expertise in web performance for large-scale, complex web applications.\n\nExpert-level JavaScript/TypeScript and React knowledge, including React rendering internals and experience diagnosing and resolving performance issues in large React codebases.\n\nStrong understanding of browser performance fundamentals: the critical rendering path, layout/paint/composite pipeline, main-thread scheduling, Web Workers, browser DevTools/Performance panel profiling, etc.\n\nExperience designing and operating RUM and synthetic performance monitoring at scale (e.g., custom metrics collection, percentile-based alerting, anomaly detection for regressions).\n\nDeep knowledge of build tooling and delivery optimization: Webpack/Vite/Bazel, code splitting, tree-shaking, chunk strategies, lazy loading, CDN behavior, caching headers, resource hints, and their measurable impact on load performance.\n\nExperience with large dataset rendering: virtualization (windowing), canvas/WebGL rendering for grids or charts, streaming/incremental rendering, and efficient DOM management.\n\nStrong communication and influence skills: able to set technical direction, build consensus across teams, and explain performance trade-offs to both engineers and product stakeholders.\n\nExperience working in a platform or infrastructure role where your customers are other engineering teams.\n\nAbility to work on-site at our Bellevue, WA or Menlo Park, CA offices.\n\nPreferred Qualifications\nFamiliarity with server-side rendering, streaming SSR, or edge rendering patterns and their performance implications.\n\nFamiliarity with browser engines or internals (V8, Chromium, Webkit).\n\nContributions to web performance standards, browser APIs, or open-source performance tooling.\n\nExperience with observability platforms (Datadog, Grafana, etc) and building internal performance tooling.\n\nBackground in data-intensive UIs: query editors, result grids, dashboards, notebooks, or similar products where rendering performance under large data volumes is critical.\n\nIf you’re excited about building the platform and systems that power how the world’s largest companies experience Snowflake, we’d love to hear from you.\nSnowflake is growing fast, and we’re scaling our team to help enable and accelerate our growth. We are looking for people who share our values, challenge ordinary thinking, and push the pace of innovation while building a future for themselves and Snowflake.\nHow do you want to make your impact?\nFor jobs located in the United States, please visit the job posting on the Snowflake Careers Site for salary and benefits information: careers.snowflake.com","description_format":"text","description_chars":6543,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Data Warehouses & Lakehouses","Databases & DBMS","Data Marketplaces, Sharing & Clean Rooms"],"lifecycle":[{"event":"open","at":"2026-05-29T18:05:19Z"},{"event":"close","at":"2026-08-31T16:27:40Z"},{"event":"reopen","at":"2026-10-01T06:54:02Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 529 · green card filings: 106","filings_12m":529,"filings_prev_12m":372,"green_card_filings_12m":106,"median_offered_wage_usd":160862,"route":null,"cap_exempt":false,"checked_at":"2026-10-03T21:08:04+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":346}],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":1,"p_active":0.407,"p_room":0.28,"age_days":135,"expected_fill_days":50,"reasons":["conf:3","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-12T06:55:09Z"},"pay":{"stated_usd_annual":339200,"is_top_pay":true},"html_url":"https://alion.io/job/snowflake-staff-software-engineer-apps-and-experiences-platform-team","json_url":"https://alion.io/job/snowflake-staff-software-engineer-apps-and-experiences-platform-team.json","meta":{"generated_at":"2026-10-13T00:16:23Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":389,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":96},"rest":"https://alion.io/mcp/rest/get_company?id=96"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsnowflake-staff-software-engineer-apps-and-experiences-platform-team"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsnowflake-staff-software-engineer-apps-and-experiences-platform-team"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsnowflake-staff-software-engineer-apps-and-experiences-platform-team"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/snowflake-staff-software-engineer-apps-and-experiences-platform-team\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsnowflake-staff-software-engineer-apps-and-experiences-platform-team"}]}