Chase Anderson

Senior Software Engineer at Walmart

Architected and delivered full-stack features using React and Next.js for server-rendered experiences, pairing with Node.js APIs and Python microservices for business logic and ML inference. Integrated LLM-based components and automation pipelines into customer workflows, connecting Hugging Face models and custom inference endpoints via REST/GraphQL APIs. Designed backend architecture for AI augmentation: batching, async job queues (Celery/Kafka), and model caching layers to reduce latency for prompt responses. Led cloud deployment patterns on AWS (ECS/EKS, S3, Lambda) and GCP, standardized infrastructure as code with Terraform and CloudFormation for repeatable environments. Implemented observability across stacks using Datadog, Prometheus, and Grafana; added distributed tracing and structured logging to isolate LLM and API latencies. Built secure API integrations with third-party services using OAuth2, JWT, and fine-grained role-based token handling; enforced input validation and rate

Senior Frontend Engineer (React) at Airbnb

Led migration from client-only React apps to Next.js for improved SEO and initial render performance; implemented SSR and incremental static regeneration for catalog pages. Collaborated with backend teams on GraphQL schema design (Apollo) and efficient data fetching strategies to minimize over-fetching and reduce client complexity. Implemented client state solutions using Redux and Zustand for complex interactive flows while reducing bundle size. Instrumented client and server telemetry with Sentry and custom metrics; used observability data to prioritize performance work and reduce user friction. Built data-driven A/B experiments and analytics pipelines, integrating event tracking into components and feeding signals into experimentation platforms. Introduced component-level performance budgets, automated linting, and build optimizations (code splitting, tree shaking) to keep page sizes predictable. Worked on authentication flows integrating NextAuth, OAuth2 providers, and secure sessi

Senior Software Engineer at Instacart

Implemented core shopping and checkout experiences using React and Redux, focusing on performance and real-time cart synchronization. Built WebSocket and polling layers for live inventory and order status updates; designed graceful degradation for intermittent connectivity. Collaborated with backend teams to design REST and GraphQL endpoints for the storefront, shaping payloads for low client CPU and network usage. Implemented feature flagging and progressive rollout to safely ship UI experiments and gather behavioral data for product decisions. Introduced unit and integration testing (Jest, Enzyme) and CI pipelines that enforced coverage and prevented regressions on shipping flows. Optimized bundle and asset delivery through code splitting, critical CSS inlining, and long-term caching strategies on CDNs. Worked with UX and accessibility teams to remediate issues and meet WCAG guidelines for core purchase flows and dialogs. Integrated third-party payment providers and ensured secure ha

Senior Software Engineer / Senior Full Stack Engineer at Walmart

Owned the frontend architecture for a multi-tenant shopper dashboard built in React and TypeScript; introduced a composable component library (design tokens, Storybook) to accelerate feature delivery and enforce accessibility. Engineered client-side performance improvements (code-splitting, tree-shaking, lazy hydration) that reduced bundle size and improved Time to Interactive. Implemented RESTful API integrations with Node.js/Express backend services; standardized API contracts with TypeScript types and OpenAPI-driven client generation. Designed server-side rendering paths and caching strategies to optimize SEO and first-render latency for dynamic product pages. Collaborated on an observability stack (Prometheus, Grafana, Sentry) to add frontend instrumentation and backend tracing for end-to-end visibility. Built CI/CD pipelines (GitHub Actions) for automated builds, tests, and canary deployments to AWS. Led cross-functional code reviews and introduced ESLint/TypeScript strict mode to

Senior Software Engineer / Senior Full Stack Engineer at Airbnb

Delivered features in a React/Redux monorepo, translating Figma wireframes into responsive, production-ready UI with ARIA improvements. Built server-side and API middleware components in Node.js/Express to support booking workflows and third-party integrations. Collaborated with backend teams to define and consume RESTful APIs; standardized error handling and retry semantics on the client. Introduced component-driven development with Storybook and visual regression testing to catch UI regressions early. Optimized performance with Webpack split chunks and dynamic imports to improve page load on low-bandwidth networks. Implemented feature flags and gradual rollouts with metrics dashboards for rapid feedback. Designed and enforced CI workflows (CircleCI) with parallel test execution and pre-merge checks. Added monitoring hooks and Sentry classification to reduce MTTR for frontend incidents. Contributed to Postgres-backed sessions and state persistence, tuning queries for hotspots. Champio

Senior Software Engineer / Full Stack Engineer at Instacart

Built end-to-end features in a React and Backbone hybrid codebase, progressively migrating components to React and TypeScript for maintainability. Implemented REST API endpoints and background workers in Node.js to handle order orchestration and inventory synchronization. Added client-side caching and optimistic UI updates to improve perceived responsiveness for shoppers placing orders. Designed UI components with responsive CSS (Flexbox, Grid) and utility-first styles to support a wide range of device form factors. Worked on integrations with external payment and logistics providers, ensuring secure handling of tokens and webhook processing. Developed unit and integration tests (Mocha, Jest) and improved test coverage for critical checkout paths. Instrumented services with logging and metrics to detect anomalies and support post-incident analysis. Contributed to CI/CD toolchain and release automation to speed up safe deployments and rollbacks. Improved database interactions (MySQL, Re

Senior Software Engineer at Airbnb

Delivered key features in a React/Redux monorepo, translating Figma wireframes into responsive, production-ready UI with pixel-precise behavior and ARIA improvements for accessibility. Built server-side and API middleware components in Node.js and Express to support complex booking workflows and third-party integrations. Collaborated with backend teams to define and consume RESTful APIs; standardized error handling and retry semantics client-side for more resilient integrations. Introduced component-driven development with Storybook and visual regression testing to catch UI regressions earlier in the pipeline. Worked on performance profiling and bundle optimization (Webpack split-chunks, dynamic imports) to improve page load on low-bandwidth networks. Implemented feature flags and gradual rollouts to safely release UI experiments, supported by metrics and dashboards for rapid feedback. Designed and enforced CI workflows (CircleCI) with parallel test execution and pre-merge checks to ke