01Frontend engineering
Production React applications and accessible component systems for complex customer experiences.
React · Next.js · TypeScript · JavaScript ES6+ · React Hooks · React Query · Redux · Zustand · HTML5 · CSS3 · Tailwind CSS · Storybook · Design systems · SPA architecture · SSR · Accessibility
02Frontend architecture and performance
Scalable application foundations, reusable UI frameworks, and measurable browser performance.
Architecture design · Component-driven development · Micro frontends · Monorepos · State management · Virtualized rendering · Lazy loading · Code splitting · Bundle optimization · Core Web Vitals · React Profiler · Streaming UI
03AI application engineering
Production intelligent experiences built around retrieval, model services, and human workflows.
LLM applications · RAG · Semantic search · Embeddings · Vector search · AI assistants · AI copilots · Prompt engineering · Agent workflows · Intelligent search interfaces
04Backend and API development
Product services, secure APIs, and real-time communication supporting modern web applications.
Node.js · Express.js · NestJS · Python · FastAPI · REST APIs · GraphQL · WebSockets · Microservices · API design · Authentication · Authorization · OAuth2 · JWT · RBAC
05Databases and cloud
Data and infrastructure foundations supporting reliable, scalable product delivery.
PostgreSQL · MySQL · Redis · MongoDB · DynamoDB · AWS Lambda · API Gateway · S3 · CloudFront · RDS · ECS
06Cloud and DevOps
Delivery and infrastructure patterns for scalable customer-facing products.
Docker · GitHub Actions · CI/CD pipelines · Cloud deployments · Production releases · CDN optimization
07Testing and observability
Automated quality and production feedback loops that improve release confidence and operations.
Jest · React Testing Library · Playwright · Cypress · Unit testing · Integration testing · Sentry · Datadog · OpenTelemetry · Production monitoring