About
The Author
I’m J.C. Jones (they/them), and currently I am a Site Reliability Engineer at the Internet Security Research Group working on whatever needs doing. For 2020-2024 that was mostly performance and data management for Let’s Encrypt. Since 2025 I’ve been working on Divvi Up and Digital Identity topics.
In 2023 and 2024 I helped organize an Open Source Cryptography Workshop as a co-located event after the Real World Crypto Symposium, and am doing so again in 2026.
In the past I led the Cryptography Engineering team at Mozilla. In 2014-15 I built-out and helped launch Let’s Encrypt. An even longer time ago I co-founded SAIFE, Inc. and purpose-built a high-performance public key infrastructure.
I was an editor of the Level 1 and Level 2 W3C Web Authentication specifications, as part of my goal of replacing passwords everywhere I can.
I’m also a private pilot, an officer of the Phoenix Flyers flying club, and occasionally post about aviation topics under the heading aviation.
Contact
You can find me on:
- Bluesky as @insufficient.coffee,
- Mastodon as @coffee@mastodon.sandwich.net,
- Github as @jcjones, or
- LinkedIn as @insufficient.coffee.
Speaking
You can occasionally hear me talk about topics. See my Speaking Engagements list for upcoming and past events.