Note: The job is a remote job and is open to candidates in USA. EY is a global leader in assurance, consulting, tax, strategy and transactions, and they are seeking an Offensive Security Analyst - Manager to strengthen their enterprise security capabilities. The role involves conducting adversarial testing, proactive threat hunting, and collaborating with teams to enhance security operations and incident response.

Responsibilities

• Perform research and analysis of attacker tactics, techniques, and procedures (TTPs), and emulate those attacks in a collaborative and controlled environment
• Conduct proactive threat hunting operations leveraging SIEM, EDR, threat intelligence, and other security telemetry sources to identify malicious activity and previously unknown threats
• Identify patterns consistent with sophisticated attacker methodologies, and report on security concerns as they are escalated or identified
• Evaluate, develop, and operationalize Artificial Intelligence (AI) and Machine Learning (ML) capabilities to enhance cyber defense operations, including threat detection, threat hunting, anomaly detection, adversary emulation, attack simulation, and security automation
• Analyze digital artifacts, forensic evidence, logs, malware samples, and system telemetry collected during adversarial testing, investigations, and threat hunting activities
• Communicate with system owners, custodians, and IT stakeholders to facilitate security testing activities, including obtaining access to systems, digital artifact collection, and remediation activities
• Develop and present technical findings, attack narratives, risk assessments, and remediation recommendations to both technical and non-technical stakeholders using written reports, presentations, and executive briefings
• Maintain, manage, improve, and update security testing processes, procedures, and protocol documentation
• Identify means to disrupt attacker actions, validate security detections and defensive controls, identify coverage gaps, and enhance defender response capabilities

Skills

• 6+ years of relevant experience in one or more of the following areas: Red Teaming, Purple Teaming, Offensive Security Operations, Exploit Development, Penetration Testing, Security Research, or similar roles
• Demonstrated understanding of common and advanced cyber-attack vectors, exploitation methodologies, and intrusion set tactics, techniques, and procedures (TTPs)
• Knowledge of incident response processes and the integration of red and purple team findings into defensive operations and remediation efforts
• Good understanding of Windows and Unix/Linux operating systems
• Understanding of IP networking concepts, including addressing, routing, common network protocols, and the use of proxies, load balancers, firewalls, routers, and switches within enterprise architectures
• Understanding of security concepts across on-premises, cloud, and hybrid enterprise environments
• Global mindset for working with different cultures and backgrounds
• Demonstrated integrity and judgment within a professional environment
• Ability to appropriately balance work/personal priorities
• Teaming skills as well as ability to work independently on tasks
• Good social, communication, and writing skills
• Associate's degree or equivalent professional experience, and/or one or more of the following certifications: OSCP, OSEP, CRTO, GXPN, CISSP, GPEN, GCIH, GCFE, CFCE, other relevant GIAC certs
• Familiarity with EDR, SIEM, and SOAR technologies, detection engineering, threat hunting methodologies, security testing, scripting, and malware analysis techniques
• Extensive experience in applied enterprise hacking techniques (red/purple-teaming) across on-premises, cloud, and hybrid environments
• Experience with adversary emulation frameworks, attack simulation platforms, and threat-informed defense methodologies
• Background in DevSecOps, with the ability to rapidly build and deploy test scenarios to validate cyber threats and security concerns
• Hands-on experience as an administrator configuring one or more of SIEM, SOAR, Endpoint Protection, Vulnerability Scanners, or Data Loss Prevention
• Proficient with one or more scripting languages such as Python, PowerShell, Perl, or similar languages in a threat intelligence, incident response, or cyber defense environment
• Experience evaluating emerging AI-enabled attack techniques and applying AI/ML technologies to enhance threat detection, adversary emulation, detection engineering, security automation, or cyber defense capability development

Benefits

• Medical and dental coverage
• Pension and 401(k) plans
• A wide range of paid time off options
• Hybrid model with expectation to work together in person 40-60% of the time
• Flexible vacation policy
• Time off for designated EY Paid Holidays, Winter/Summer breaks, Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well-being
• Reasonable accommodation to qualified individuals with disabilities including veterans with disabilities

Company Overview

• EY is building a better working world by creating new value for clients, people, society, the planet, while building trust in the capital markets. It was founded in 1989, and is headquartered in London, England, GBR, with a workforce of 10001+ employees. Its website is http://www.ey.com.

Company H1B Sponsorship

• EY has a track record of offering H1B sponsorships, with 3 in 2026, 3 in 2025, 16 in 2023. Please note that this does not guarantee sponsorship for this specific role.