Giant humanoid robot deployed to fix train lines

Standing around 12 meters tall, the robot similar to 'Optimus Prime' from the Transformers series, can carry heavy objects, can be fitted with chainsaws, paintbrushes and other tools, and is controlled remotely by engineers via cameras in his eyes. It is intended to fill labor shortages and reduce workplace accidents. He’ll also be pretty handy if there are ever any Decepticons riding the train.