Cobarruviaz announced his retirement after serving as head of the police department for four years.
"It's been a great experience for me working in beautiful Redwood City," Cobarruviaz said in a statement. "But I think it's time for me to step aside and let the new city manager direct his or her own team."
Cobarruviaz said he successfully accomplished several public safety goals set for him by the city, including significant crime reduction, computerization, improved policing and necessary adjustments in police personnel work hours and shifts.
"He has been dedicated to maintaining a high level of safety for our residents and has been very effective," Interim City Manager Bob Bell said in a statement.
Cobarruviaz's last day will be Feb. 16.