# buildwithallen.com — Allen Walker

> Allen Walker is a senior full-stack & AI engineer with 25 years of experience in JavaScript and React. This site covers building and shipping full-stack web and mobile apps, and production LLM features (tool calling, agents, retrieval), on AWS and Google Cloud.

## Posts
- [Deploying a Full-Stack App to Google Cloud Run](https://www.buildwithallen.com/posts/deploy-full-stack-app-google-cloud-run/): Nginx frontend + FastAPI backend on Cloud Run, with Cloudflare Turnstile, Firestore, Secret Manager, and custom domain mapping.
- [How I Build & Maintain Full-Stack Apps with Claude Code](https://www.buildwithallen.com/posts/build-maintain-full-stack-apps-claude-code/): A spec-first (SPEC.MD / CLAUDE.MD) workflow for building apps with Claude Code, plus prompting strategies that work.
- [Playcall: A Natural-Language NFL Stats Chatbot with Text-to-SQL](https://www.buildwithallen.com/posts/playcall-natural-language-nfl-stats/): An LLM agent that turns plain-English questions into SQL over nflverse play-by-play in DuckDB, implemented across Ollama, OpenAI, and Anthropic.

## About
- [About Allen Walker](https://www.buildwithallen.com/about/): Background, experience, projects, and contact.
- [Services](https://www.buildwithallen.com/services/): Freelance full-stack & AI engineering — web/mobile apps and production LLM features, from MVP to launch.