Many jobs in Biomedical Engineering can resemble other engineering or even IT jobs: one may recieve a call from a user of a medical device, troubleshoot the device, and conduct preventative and corrective maintenance on-site if needed. Depending on the career, some may be on call past working hours.
There is a large amount of variation on what a day may look like: some biomedical engineers work very closely with doctors and nurses with patients that require a pacemaker, or an X-ray, etc. Others may spend long stretches of time working with code at a computer desk. Any position involves a degree of paperwork.