Jonathan Holmes is a CTO at greymatter.io. Colleagues describe them as "Jonathan is the rare breed of technical genius and pragmatic implementer. While working with Jonathan on a challenging, high-risk, high-reward program of record, he was the technical North Star the team relied on to match what was the art of the possible with the challenges of immediate and future requirements. Jonathan not only provided solutions for today's problems but future proofed the ecosystem to allow it to grow past all expectations. Jonathan is a realistic visionary whom I value as a friend, mentor and colleague."