Cyber Defense Analyst

EY•Atlanta, DC

1d•$128,100 - $272,300•Remote

About The Position

Today’s world is fueled by vast amounts of information. Data is more valuable than ever before. Protecting data and information systems is central to doing business, and everyone in EY Information Security has a critical role to play. Join a global team of almost 950 people who collaborate to support the business of EY by protecting EY and client information assets! Our Information Security professionals enable EY to work securely and deliver secure products and services, as well as detect and quickly respond to security events as they happen. Together, the efforts of our dedicated team helps protect the EY brand and build client trust. Within Information Security we blend risk strategy, digital identity, cyber defense, application security and technology solutions as we consider the entire security lifecycle. You will join a team of hardworking, security-focused individuals dedicated to supporting, protecting and enabling the business through innovative, secure solutions that provide speed to market and business value.

Requirements

Deep expertise in offensive security tools and frameworks (e.g., Metasploit, Cobalt Strike / custom C2, Empire, BloodHound, Nmap, Burp Suite, and others).
Demonstrated ability to thinking critically
Strong knowledge of networking, operating systems (Windows/Linux), Active Directory, cloud platforms (AWS/Azure/GCP), web app security, and common protocols.
Proficiency in scripting/programming (Python, PowerShell, Bash, etc.) for automation and custom tooling.
Ability to translate complex technical findings into clear business risk language for executives and non-technical stakeholders.
Ability to accurately build out attack paths and threat models relevant to current infrastructure and threat intelligence.
Independently research and stay knowledgeable of Threat Actor TTP’s and how they may be leveraged.
Excellent analytical, problem-solving, and technical writing skills.
Strong teamwork, independence, and communication skills.
6-8 years of hands-on experience in penetration testing, red teaming, or offensive security.
Demonstrated experience executing red team or advanced penetration testing engagements.
Relevant certifications including OSCP, CPTS (or equivalents such as GPEN, CRTO, OSEP, OSCE).
Ability to work effectively in a fully remote environment.

Nice To Haves

Experience with threat intelligence-driven adversary emulation (e.g., MITRE ATT&CK framework, TIBER-EU).
Prior consulting or client-facing experience (where applicable).
Knowledge of purple teaming, security operations (SOC), incident response, and detection engineering.
Creation of, or contributions to open-source tools or projects, CTF participation, or public research/blogging.

Responsibilities

Plan, execute, and lead red team operations and adversary emulation, including reconnaissance, initial access, execution, persistence, lateral movement, exfiltration, and impact.
Conduct advanced penetration testing across environments: external/internal networks, web/cloud applications, APIs, Active Directory, identity systems, and hybrid/cloud infrastructures.
Perform social engineering (e.g., phishing) as part of integrated engagements.
Identify, validate, exploit, and chain vulnerabilities to demonstrate realistic attack paths and business risks.
Collaborate in Purple Team exercises with defensive teams to improve detection, response, and resilience.
Produce high-quality deliverables: detailed technical reports, executive summaries, risk assessments, and remediation recommendations.
Mentor junior team members, provide technical oversight, and contribute to methodology improvements and tooling (e.g., custom exploits, automation scripts).
Stay current with emerging threats, TTPs, exploits, and defensive countermeasures through research, conferences, and self-development.