I love inventing, and I'm passionate about using software to make the world a better place. I also love to distill ideas as a teacher and writer. I am happiest with challenging problems, where ambiguity and opportunity abound. I have broad experience and aptitude as a coder/designer—and I’m also a great communicator, system thinker, and synthesizer. I like mentoring. I work hard, execute correctly on priorities, and have significant experience managing both local and outsourced teams. I enjoy learning from others, and I cheerfully admit I don’t know it all -- it takes a team to conquer the world. With plenty of help from smart coworkers, I’ve had the privilege of building pragmatic solutions to many mission-critical problems. The result has been “crown jewel” technologies that catalyzed change in dev teams and business models -- but also lasting friendships and professional collaborations that I treasure. Specialties: identity, privacy, protocols, decentralized and peer-to-peer architectures, blockchain, cybersecurity and zero-trust architecture, cryptography, zero-knowledge proofs, digital credentials, open source, writing and shepherding standards, machine learning, databases, python, C++, java, Rust, message queues, web technologies, C#, cross-platform internationalization and globalization, UI/usability/UX, pragmatic implementations of agile process, linux/windows/mac