An IT security engineer oversees the protection of a company’s computer networks, development projects, and website. Your job duties in this career include creating security measures and monitoring systems for evidence of intrusions. To become an IT security engineer, you need a degree in computer science, information technology, or a related field. Acquire an entry-level position working with security measures in an IT department to learn how to protect company data and identify threats. Once you have some experience in the industry, seek IT security engineer positions. Certification is not required, but becoming certified in network security may make you a more valuable candidate in the job market.