The qualifications you need to get an entry-level offshore job typically include a high school diploma or GED certificate and a Transportation Worker Identification Credential (TWIC), which is a biometric identification card for maritime workers. To qualify for a TWIC, you must pass a threat assessment check. In addition to these qualifications, useful skills and qualities for entry-level offshore positions include excellent verbal communication, good mechanical aptitude, the ability to follow safety protocols, physical strength and stamina, and the willingness to work in harsh conditions for long periods on the oil rig.