Firebase Firestore, Auth, Storage, real-time listeners, security rules

Flutter development with Riverpod state management, Freezed, go_router, and mocktail testing

Google Gemini CLI code review with Gemini 2.5 Pro, 1M token context, CI/CD integration

Klaviyo email/SMS marketing - profiles, events, flows, segmentation

Medusa headless commerce - modules, workflows, API routes, admin UI

Microsoft Teams bots and AI agents - Claude/OpenAI, Adaptive Cards, Graph API

Progressive Web Apps - service workers, caching strategies, offline, Workbox

Python development with ruff, mypy, pytest - TDD and type safety

React web development with hooks, React Query, Zustand

Reddit Ads API - campaigns, targeting, conversions, agentic optimization

OWASP security patterns, secrets management, security testing

Shopify app development - Remix, Admin API, checkout extensions