A national security guard company is set to expand in the Milwaukee area in early 2018.  Signal 88 Security is planning to hire as many as 150 people in the next few weeks due to new client contracts.  The Milwaukee Business Journal reports the company currently employs about 20 people in Brookfield and is in need of a lot more by the end of next month.  District manager Michael Chappell says most of the jobs are full-time and they’ve got about 40 candidates so far.