Security Engineer III, Red Team Operator

Deloitte’s Cyber Defense & Resilience team works to strengthen detection, response, and resilience through authorized adversary emulation. As a Security Engineer III, Red Team Operator (onsite in Rosslyn, VA), you’ll plan and carry out realistic assessments that help teams understand gaps in security controls and improve how incidents are handled. You’ll also have the opportunity to be considered for a discretionary annual incentive program, based on program rules.

What you’ll do

• Plan and execute red team operations across enterprise environments, web applications, cloud platforms, and endpoints.
• Emulate advanced threat actors using realistic attack paths, tools, and techniques.
• Run simulations for reconnaissance, initial access, privilege escalation, lateral movement, persistence, and exfiltration.
• Assess the effectiveness of security controls, monitoring, and incident response processes.
• Conduct phishing, social engineering, and credential attack exercises where authorized.
• Develop custom payloads, scripts, and attack workflows to support engagements.
• Document results, including attack chains, defense gaps, and remediation recommendations.
• Provide clear after-action reports and debriefs to technical and leadership stakeholders.
• Partner with blue teams, detection engineers, and security leadership to improve defensive capabilities.
• Follow rules of engagement, legal requirements, and operational safety requirements throughout engagements.

What you bring

• Bachelor’s degree in Cybersecurity, Computer Science, Information Systems, Engineering, or a related technical field.
• Active Top-Secret Clearance.
• Ability to work onsite up to 5 days a week.
• Knowledge of network architecture, protocols, and techniques (including tunneling).
• Hands-on offensive security experience in red teaming, purple teaming, or adversary simulation.
• Strong knowledge of enterprise attack techniques across Windows, Active Directory, Linux, cloud, and identity environments.
• Experience with command and control frameworks, privilege escalation, lateral movement, and evasion techniques.
• Proficiency with tools such as Cobalt Strike, Mythic, Metasploit, BloodHound, Burp Suite, Nmap, and PowerShell or Python.
• Experience with MITRE ATT&CK mapping and threat emulation.
• Ability to produce high-quality reports that connect technical findings to business risk.
• Certified Red Team Operator (CRTO) or Offensive Security Certified Professional (OSCP).
• Ability to travel 20% on average based on client and industry needs.
• Legally authorized to work in the United States without employer sponsorship, now or in the future.

Preferred background

• Experience with C2 frameworks such as Cobalt Strike, Havoc, Mythic, Sliver.
• Cloud red teaming experience in AWS, Azure, or GCP.
• Familiarity with detection engineering, SIEM, EDR, and purple team exercises.
• Experience developing custom tooling or modifying public offensive tools.
• Knowledge of malware analysis, reverse engineering, or exploit development.

Collaboration and execution skills

• Ability to work independently and collaborate as part of a team.
• Effective written and verbal communication skills.
• Meticulous attention to detail and quality of work product.
• Ability to build and sustain professional relationships.
• Capacity to lead projects or workstreams.
• Ability to manage and prioritize multiple tasks in a fast-paced environment.
• Strong interpersonal skills and professional demeanor.
• Ability to meet deadlines and provide clear guidance to others.