Cyber - AI-Enabled Vulnerability Management - Senior - Consulting

EY; Hoboken (NJ); On-site; USD 150,000 - 230,000; Full time

Job summary

EY is seeking a Senior Attack & Penetration Tester to drive offensive security engagements across client environments, from external networks to cloud and mobile applications. You will plan, lead, and execute complex tests, applying adversary emulation and MITRE ATT&CK-informed methods.

You will translate findings into actionable remediation, collaborate with client teams, mentor juniors, and help shape EY's security capabilities while staying current with industry trends.

Qualifications

• Bachelor's degree in a relevant field with 5+ years offensive security experience.
• Hands-on experience planning and executing advanced red team engagements.
• External/internal network pentesting including AD, cloud and API environments.
• Experience with scripting in Python, PowerShell, Bash, or similar.

Responsibilities

• Plan, lead, and execute complex penetration tests and red team engagements.
• Emulate adversaries, map attack paths, and assess security controls.
• Work across networks, AD, cloud, wireless, web, mobile, and APIs.
• Translate findings into remediation plans for clients and EY leadership.
• Mentor junior team members and coordinate testing activities.

Skills

Problem solving

Penetration testing

Vulnerability assessment

MITRE ATT&CK

Team leadership

Risk management

Reporting

Communication

Cross-functional teamwork

Education

Bachelor's degree in CS / engineering / cybersecurity / MIS / IT / related

Tools

Active Directory

Microsoft Entra ID

Job description

Location: Anywhere in Country

At EY, we're all in to shape your future with confidence.

We'll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go. Join EY and help to build a better working world.

Opportunity

Cyber threats, social media, artificial intelligence, privacy requirements, and continuity of the business as usual require heavy information security measures.

As a Senior Attack & Penetration Tester, you will contribute to our client’s resilience through the execution of sophisticated offensive security operations.

Your Key Responsibilities

As a Senior on the Attack & Penetration Testing team, you will plan, lead, and execute complex penetration testing and advanced red team engagements across diverse client environments. You will apply an intelligence-led, threat-informed approach to emulate realistic adversary behaviours, identify exploitable attack paths, and evaluate preventive, detective, and responsive security controls. Your work will span external and internal networks, Active Directory, Microsoft Entra ID, web and mobile applications, application programming interfaces (APIs), cloud environments, wireless networks, social engineering, and physical security scenarios, as permitted by the rules of engagement. You will translate technical testing results into clear, actionable insights for technical and executive audiences. You will work collaboratively with client technical teams to validate identified weaknesses and develop practical remediation or mitigation strategies, including Active Directory security improvements, system-hardening measures, and compensating controls aligned with the client environment and operational constraints. You will also lead technical workstreams, coordinate testing activities, mentor junior team members, contribute to methodology and capability development, and remain current on emerging vulnerabilities, adversary tactics, offensive security tooling, and industry research.

Skills And Attributes For Success

• Demonstrate advanced problem-solving and critical-thinking skills when developing and executing attack paths.
• Plan and conduct penetration tests and advanced red team engagements within defined scopes, rules of engagement, and safety constraints.
• Identify, validate, and exploit vulnerabilities across external and internal networks, Active Directory, Microsoft Entra ID, cloud, wireless, web, mobile, and API environments.
• Apply threat-informed testing techniques aligned with the MITRE ATT&CK framework and relevant adversary tactics, techniques, and procedures.
• Lead technical testers, coordinate distributed workstreams, and provide hands‑on coaching and quality review for junior team members.
• Recognize when to upscale risks, issues, testing impacts, and opportunities to appropriate client and EY leadership.
• Produce high-quality technical work products, evidence, client reports, and executive‑ready presentations that clearly explain risk and remediation priorities.
• Communicate complex offensive security concepts clearly to technical stakeholders, business leaders, and executives.
• Work collaboratively in cross‑functional, culturally diverse, and geographically dispersed teams while adhering to service quality and engagement management requirements.

To qualify for the role, you must have:

• A bachelor's degree in Computer Science, Computer Engineering, Cybersecurity, Management Information Systems, Information Technology, Engineering, or a related field, and at least five years of relevant offensive security experience.
• Hands‑on experience planning and executing advanced red team engagements, including adversary emulation, objective‑based operations, attack‑path development, and testing against mature security monitoring and response capabilities.
• Advanced experience conducting external and internal network penetration testing, including host and service enumeration, exploitation, privilege escalation, lateral movement, and post‑exploitation activities.
• Experience assessing Active Directory environments, including domain and trust configurations, privileged access, authentication protocols, delegation, Group Policy, credential exposure, certificate services, security configurations, and other identity‑based attack paths.
• Experience performing cloud security testing, including identity and access management, exposed services, configuration weaknesses, privilege escalation, and attack‑path analysis.
• Experience conducting wireless security assessments, including enterprise and guest wireless configurations, authentication controls, segmentation, and authorized wireless attack techniques.
• Experience testing web applications, mobile applications, and APIs using manual techniques and industry‑recognised testing methodologies.
• Experience evaluating security configurations and system‑hardening requirements and working with client technical teams to develop practical remediations, mitigations, compensating controls, and validation approaches for identified findings.
• Experience with scripting or programming languages used to automate testing, analyze data, or develop offensive security tooling, such as Python, PowerShell, Bash, C#, Go, Rust, or Java.
• Experience using commercial