Charles Berret

[ 01 / work ]

Selected work

Editorial systems, data journalism, and the AI tooling that powers them — built for a business-identity data company, the academy, and the press.

01

Data Journalism

Enigma · 2025–26

Fifteen investigative data-journalism stories built on a reproducible pipeline — Databricks → DuckDB → Marimo → publication — with a GREEN/YELLOW/RED bulletproofing protocol that caught defamatory and factual errors before they shipped. Reporting drawn straight from the warehouse, not press releases.

Surfaced 8,747 federal mass-defendant cases from the RECAP archive, and reproduced the NYC Public Advocate’s worst-landlords counts to within 15% from open data alone.

  • Databricks
  • DuckDB
  • Marimo
  • RECAP
  • Polars
02

Content-Engineering Platform

Enigma · internal, adopted org-wide

An internal platform the engineering organization runs on: a Claude Code plugin marketplace of 16 production Claude Skills for the Databricks entity-resolution graph plus session tooling, a reusable GraphQL identity-resolution client, and an LLM-evaluation MCP server spanning 14 models across 7 providers.

  • Claude Skills
  • MCP servers
  • GraphQL
  • LLM evaluation
03

Autonomous Content Fleet

Enigma · always-on

Multi-session AI agent loops on systemd and cloud scheduling, with monitoring dashboards, running competitive scans, market briefs, and editorial cycles on a cadence — designed, operated, and migrated from a laptop to an always-on VPS substrate.

  • Agent orchestration
  • systemd
  • Monitoring
  • VPS
04

Launch & Brand Systems

Enigma · GTM

Owned the content stack for the Gov Archive launch (1,000+ validated datasets; launch blog through 7+ executive revision rounds; press release and documentation) and the Google Cloud and Clay partnership announcements, including multi-round CEO quote and voice calibration.

Authored the company brand-voice and editorial system; grew an SEO-driven KYB knowledge base to 80+ articles and a 50-term glossary with automated freshness and regulatory maintenance; and stood up a monthly GTM competitive-intelligence program tracking ~7 identity vendors.

  • Launch comms
  • Brand voice
  • SEO knowledge base
  • Competitive intel
05

Cryptographic Amnesia

Book · forthcoming, MIT Press

A cultural history of how a set of mathematical techniques became an instrument of war, a civil-liberties cause, and a piece of everyone’s infrastructure. Built on archival research across eight sites and interviews with Whitfield Diffie–era cryptographers and cypherpunks — Hellman, Hughes, Schneier, Zimmermann, Täht, and Mandl.

  • MIT Press
  • Archival research
  • Oral history
06

Research & Visualization

Peer-reviewed

Peer-reviewed work on data sensemaking and dirty data with Tamara Munzner (ACM CHI, IEEE VIS); the first published study of the SecureDrop whistleblowing platform (Tow Center); and the Knight Foundation report that shaped data-journalism curricula at 116 programs.

  • ACM CHI
  • IEEE VIS
  • Tow Center
  • Knight Foundation
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