Principal Cybersecurity Security Engineer

ManTech International seeks a Principal Cyber Engineer to lead advanced cyber defense solutions for U.S. defense, intelligence, and federal agencies. You will architect secure, resilient systems; integrate and optimize security tools; and drive threat detection, incident response, and hardening across complex, mission-critical environments. In a mission-focused, collaborative culture, you’ll mentor engineers, shape cyber strategy, and leverage continuous learning, certifications, and cutting-edge technologies to protect national security while advancing your career.