For the past 20 years John U Walker has worked in the computing and networking industry. He has been employed by high tech companies large and small: some on the way up, some on the way down, and some on the way to nowhere. Although he has done sales, international marketing, training, and engineering, he has held a position for the past 11 years in the engineering education department of a major Silicon Valley networking company.

His previous jobs include first grade bilingual teacher, school bus driver, volunteer fireman, hot dog cook, waterbed frame fabricator, grounds keeper, and barbershop sweeper (at age eight.)

He lives with his wife, travel photographer/writer Mary Altier on the Central Coast of California.

When not writing novels or working, John likes to travel, swim, and play tennis badly.

Click here to learn what U. in John U. Walker stands for.

Killer Code is the first novel that he has been willing to show anyone.