Software Engineer II

• Design, build, test, and operate scalable customer-facing experiences using React, TypeScript, JavaScript, HTML, and CSS.

• Design, build, test, and operate scalable customer-facing experiences using React, TypeScript, JavaScript, HTML, and CSS.
• Own complex frontend initiatives from technical discovery and architecture through implementation, experimentation, rollout, and production monitoring.
• Drive measurable improvements to Core Web Vitals—including Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift—across critical Storefront journeys.
• Use real-user data, synthetic testing, network waterfalls, browser traces, and application telemetry to identify and prioritize the highest-impact performance opportunities.
• Profile and optimize frontend runtime performance by reducing JavaScript bundle size, main-thread work, unnecessary rendering, render-blocking resources, third-party script impact, and hydration cost.
• Apply modern rendering strategies such as server-side rendering, streaming, code splitting, progressive or selective hydration, caching, and edge delivery to improve initial page load and interaction readiness.
• Diagnose performance issues across the full request path, including the browser, frontend application, content delivery layer, APIs, and downstream dependencies.
• Establish performance budgets, automated checks, dashboards, and regression-detection mechanisms that help teams prevent performance degradation before production.
• Build reusable Storefront patterns and capabilities that improve consistency, experimentation, maintainability, and delivery speed across customer experiences.
• Lead technical design discussions, evaluate tradeoffs, document decisions, and influence architecture across your team and adjacent engineering groups.
• Partner with Product, Design, Accessibility, Analytics, Platform, Mobile, and Backend Engineering to balance customer experience, business outcomes, performance, accessibility, and delivery needs.
• Improve operational excellence through strong testing, observability, staged rollouts, incident response, root-cause analysis, and durable corrective actions.
• Use experimentation and production data to validate that technical improvements translate into meaningful customer and business outcomes.
• Mentor engineers through code reviews, design reviews, debugging sessions, and technical coaching while helping raise frontend engineering standards across the team.
• Identify ambiguous or systemic problems, develop practical options, surface risks early, and drive solutions to measurable completion.

• 3-5+ years of professional experience building and operating modern frontend applications, preferably for high-scale consumer or e-commerce experiences.

• 3-5+ years of professional experience building and operating modern frontend applications, preferably for high-scale consumer or e-commerce experiences.
• Strong expertise in React, TypeScript, JavaScript, HTML, and CSS, including modern component architecture, state management, rendering, and composition patterns.
• Demonstrated experience independently leading complex frontend initiatives and delivering measurable improvements to customer experience, performance, reliability, or engineering efficiency.
• Deep understanding of browser behavior, including the critical rendering path, resource loading and prioritization, the JavaScript event loop, layout, paint, compositing, caching, and network behavior.
• Hands-on experience diagnosing performance through Chrome DevTools, Lighthouse, WebPageTest, browser performance traces, network waterfalls, and similar profiling tools.
• Experience improving Core Web Vitals and user-perceived performance using both laboratory and real-user measurements.
• Experience with server-side rendering, streaming, hydration strategies, route-level code splitting, lazy loading, and other performance-oriented framework capabilities.
• Strong understanding of JavaScript bundling, tree shaking, dependency management, asset optimization, and strategies for reducing client-side execution cost.
• Experience with real-user monitoring, synthetic monitoring, performance instrumentation, dashboards, alerting, and regression analysis.
• Ability to reason across frontend and backend boundaries, including APIs, content delivery, caching, third-party integrations, and downstream dependencies.
• Experience designing scalable and maintainable frontend architectures that support continued product development without sacrificing performance or reliability.
• Strong testing and production-readiness practices, including unit, integration, end-to-end, performance, and accessibility testing.
• Ability to independently define, decompose, and solve ambiguous technical problems while balancing immediate delivery needs with long-term maintainability.
• Strong written and verbal communication skills, including the ability to explain technical tradeoffs, performance findings, risks, and recommendations to technical and nontechnical partners.
• Experience mentoring engineers, improving team practices, and influencing technical decisions beyond individual feature implementation.
• Bachelor’s degree in Computer Science, a related technical field, or equivalent practical experience.

• Experience with Next.js, React Server Components, Server Actions, streaming, partial rendering, or edge-rendered applications.
• Experience optimizing high-traffic e-commerce journeys such as Homepage, navigation, search, product listing, product detail, cart, checkout, or customer account experiences.
• Experience building hybrid mobile experiences or optimizing web applications embedded within native applications or WebViews.
• Experience with CDN configuration, edge caching, browser caching, image optimization, font loading, resource hints, and content delivery strategies.
• Experience governing or optimizing third-party scripts, marketing pixels, tag managers, analytics libraries, and other externally loaded resources.
• Experience with microfrontend architectures, shared frontend platforms, monorepos, package publishing, or reusable application foundations.
• Experience with Node.js, backend-for-frontend services, GraphQL, or frontend-facing API orchestration.
• Experience defining performance budgets and integrating automated performance validation into CI/CD workflows.
• Experience connecting performance improvements to experimentation results, customer engagement, conversion, or other business outcomes.
• Strong understanding of web accessibility, including semantic HTML, keyboard interaction, focus management, ARIA, screen readers, and WCAG standards.
• Experience with observability standards such as OpenTelemetry and enterprise monitoring platforms.
• Experience using AI-assisted engineering tools to accelerate investigation, implementation, testing, documentation, or operational support.

• The specific salary offered to a candidate may be influenced by a variety of factors including but not limited to the candidate’s relevant experience, education, and work location. In addition, this position is eligible for 401k and a new hire and annual equity grant. C08+ positions may also be eligible for annual bonus.