"I engaged Bill to develop content for one of my largest and most challenging projects in the IoT (Internet of Things) space. He was never daunted by the challenge, working with little direction, and always willing to edit until the content was perfect. I thought his writing was fresh, engaging, and audience specific. One of his outlines for an eBook was so impressive our company now uses it as the “gold standard” for future outlines. I would highly recommend Bill as a tech writer and journalist."

"I worked as a writer for Nordic APIs where Bill is the editor in chief. It was a real pleasure working with him. He is an experienced writer and editor with deep knowledge of the API space and a knack for helping authors deliver great content on a regular basis. I can only hope to work with him again in the future!"

"I engaged Bill Doerrfeld to perform a technology sprint in the area of emotion recognition. Bill was very thorough in his approach, asking the right kinds of questions to fully understand my needs and expectations. I was very impressed with how Bill was able to gain access and speak to many different leaders in the industry, translate his findings for easy explanations and offer unique perspectives tailored to my wants. He kept me updated on his progress in a timely manner and his output was well written and organized. On top of his work, he was very personable, friendly and a pleasure to work with. I enjoyed working with Bill and learned a lot from him. I hope to have the fortune of working together in the future.!"