LONDON (CBS SF) — A Bay Area trader has gone missing in London after arriving for a job interview and never making it to his return flight to San Francisco.

Josh Sanchez-Maldonado, 24, was last seen leaving his hotel shortly after midnight on Oct. 22.

He arrived on a flight from Japan to London a day earlier and was due to fly home to San Francisco the next day, but he never made that flight.

His family is now in London to try and get answers.

“The whole family is highly concerned for his wellbeing,” his family said in a statement to London’s Metropolitan Police. “We really wish he contacts us as soon as possible. Josh please contact us, your parents, your brother or sister through email, text, phone call or by any other means.”

His father said they spoke daily since he started his travels, including the day before his disappearance.