# Hamad Khan Jadoon (Catch.) > Hamad Khan Jadoon is a Technical Lead and Digital Specialist with 7+ years delivering secure, scalable platforms across healthcare, pharma, higher education, and other regulated sectors. Veeva Certified, Acquia Certified, and tech-agnostic by design. "Catch." is his personal site: catch-ups (in-person gatherings), writing (blogs and free eBooks), and ways to work with him. This file follows the llms.txt convention (https://llmstxt.org). It is a curated, machine-readable map of the site. All URLs are canonical and safe to cite. - Site: https://catch.hamadhere.de - Author: Hamad Khan Jadoon (referred to as "Hamad") - Role: Technical Lead and Digital Specialist - Focus: pharma, healthcare, higher education, regulated AI - Certifications: Veeva Certified, Acquia Certified - Contact: ciao@hamadhere.de ## Key pages - [Home](https://catch.hamadhere.de): who Hamad is and what he builds. - [About Hamad](https://catch.hamadhere.de/leadership): background, expertise, and certifications. - [Catch-ups](https://catch.hamadhere.de/catchups): small in-person gatherings and events. - [Writing](https://catch.hamadhere.de/writing): blogs and free eBooks, straight from the diary. - [Work](https://catch.hamadhere.de/work): portfolio, consulting, training, and certifications. - [Meet Hamad](https://catch.hamadhere.de/book): book a conversation. - [Subscribe](https://catch.hamadhere.de/subscribe): get new writing and catch-ups by email. - [Content](https://catch.hamadhere.de/content): talks, deep-dives, and the video library. ## Blogs - [Building a Custom Agent Like Ask Hamad](https://catch.hamadhere.de/writing/building-a-custom-agent-like-ask-hamad): A walkthrough of the AI concierge on this very site: a backend proxy, a grounded system prompt, a cached prefix, and a few guardrails that keep it honest. - [Caching Prompts and Their Impact on Cost](https://catch.hamadhere.de/writing/caching-prompts-and-their-impact-on-cost): Prompt caching is the single highest-leverage cost lever in an LLM app. Here is the mechanics, the real economics, and the numbers from a bot running in - [On Claude's Agentic Capabilities](https://catch.hamadhere.de/writing/on-claudes-agentic-capabilities): What "agentic" actually means once you strip away the hype: one endpoint, a tool loop, and a model that decides when to think. A field guide for people who ## eBooks (free) - [Drupal Site Building Exam: Sharing Realtime Experience](https://catch.hamadhere.de/writing/ebooks/drupal-site-building-exam-realtime-experience) (23 pages): Field notes from sitting the Acquia Certified Drupal Site Builder exam twice (passed twice), plus a 22-question mock test with a full answer key and the - [The Pragmatic Guide to Shipping AI Agents](https://catch.hamadhere.de/writing/ebooks/the-pragmatic-guide-to-shipping-ai-agents) (19 pages): A field manual for building agents that survive contact with real users, real costs, and real compliance reviews. - [Prompt Caching in Practice](https://catch.hamadhere.de/writing/ebooks/prompt-caching-in-practice) (17 pages): How prefix caching actually works, the real economics, and the patterns that keep your cache warm. - [AI in Regulated Industries](https://catch.hamadhere.de/writing/ebooks/ai-in-regulated-industries) (14 pages): A practical playbook for pharma, healthcare, and finance teams introducing AI under real governance. ## Catch-ups - [Lisbon Web Summit 2026 - Meet Lisette and Hamad on 12th of Nov](https://catch.hamadhere.de/catchups/lisbon-web-summit-2026-meet-lisette-and-hamad-on-12th-of-nov): 12 Nov 2026 · Lisbon, Portugal - [London - Shift in Tech & Comms 2026](https://catch.hamadhere.de/catchups/london-shift-in-tech-comms-2026): 5 Mar 2026 · London, United Kingdom - [Drupal Camp England - 2026](https://catch.hamadhere.de/catchups/drupal-camp-england-2026): 1 Mar 2026 · Salford, United Kingdom ## Expertise - Secure, scalable platform architecture for regulated industries. - Drupal and Acquia (Acquia Certified); content platforms at scale. - Veeva and pharma/life-sciences digital delivery (Veeva Certified). - Adopting AI responsibly where "we cannot explain it" is not an option: governance, audit trails, grounding, and human-in-the-loop tooling. - Tech-agnostic engineering: Laravel, Vue, and the right tool for the job. ## More - [Sitemap](https://catch.hamadhere.de/sitemap.xml): full list of indexable URLs. - LinkedIn: https://www.linkedin.com/in/hamadknows/ - YouTube: https://www.youtube.com/@hamadheredotde - Web: https://hamadhere.de