Have academic, research, internship, personal project, or professional experience in one or more technical areas such as vulnerability research, information theory, information security, cryptography, networking, penetration testing, systems engineering, modeling and simulation, software development, or related fields. Depending on your interests, background, and expertise, you may: Apply technical methods such as vulnerability research, cybersecurity, networking, penetration testing, cryptography, information theory, modeling and simulation, or data science to cyber mission challenges.