I would avoid working here - Test Engineer Celestica Employee Review

Poor management. Due to insufficient planning, you will be constantly asked to work overtime, depending on how poorly your contract was manged (most likely a lot) you will always be asked to do shifts from 6am to 6pm along with being "asked" to come in under the guise that it's temporary. However, due to the consistent lack of planning, most likely you will play catch up throughout the duration of the contract.