[1] Constant is a former San Jose police officer (1989–2000) and has owned several photography businesses.

Constant attended Blackford High School in San Jose and received his bachelor's degree in management from Saint Mary's College of California, followed by a master's degree in leadership from St. Mary's College of California.

[3] He replaced council member Linda LeZotte, who had served eight years before being term-limited in 2006.

[4] During his time in office, Constant took an activist role as the sole conservative on the council.

His positions that attracted media attention included his proposal to prevent access to online pornography on computers at San Jose public libraries in 2007[5] and his vote against the citywide plastic-bag ban in late 2010.