William Gulland possesses expertise in unix, software engineering, device drivers, software development. Colleagues describe him as "I've been working with William in various companies since 1990. In all of that time he has always impressed me as an amazingly smart and capable engineer. There doesn't seem to be a limit to his talent and adaptability. He can get more done in less time most engineers." and "When I was a CPU Software Manager at Apple, I often had to call on William to look into various problems the factory diagnostics team was running into while building new Macs. William was always generous with his time on these issues, and his debugging skills were invaluable in helping us to get to the root cause of many of them."