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Ernst & Young

Global professional services: consulting, assurance, tax

Senior Consultant Offensive Security - Vulnerability Assessment/Penetration Testing

Offensive Security & TestingUpdated on Nov 14
Full-time$32k - $40k

About the Job

Requirements

  • A computing-related academic background.
  • At least 3–4 years of professional experience conducting vulnerability assessment and penetration testing, preferably in a consulting environment.
  • In-depth knowledge of major network protocols, including TCP/IP, DNS, HTTP, SMTP, and SMB, and ability to analyze network traffic and packets using tools such as Wireshark or tcpdump.
  • Strong familiarity with Windows, Linux, and Unix operating systems, including the ability to conduct simulated attacks in hybrid and complex environments.
  • Experience with penetration-testing techniques and tools, vulnerability exploitation, privilege escalation, lateral movement, and persistence, using tools such as Metasploit, Cobalt Strike, Burp Suite, Nmap, and BloodHound.
  • Ability to write and understand scripts in Python, Bash, or PowerShell to support offensive security activities.
  • Ability to analyze logs, events, and anomalous behavior to identify security weaknesses or potential attack vectors.

Responsibilities

  • Plan and conduct vulnerability assessment and penetration-testing activities on web and mobile applications, APIs, on-premises and cloud infrastructure, Windows/Linux environments, and Active Directory.
  • Conduct advanced manual tests to validate identified vulnerabilities.
  • Identify security misconfigurations, logical and technical vulnerabilities, and exploitation techniques.
  • Assess the actual impact of vulnerabilities in terms of business risk.
  • Prepare technical and executive reports containing exploit evidence, risk assessments, and remediation recommendations.
  • Present findings to clients and support remediation activities.
  • Support and guide junior staff on project activities.
  • Collaborate with Red Team, Blue Team, and Threat Intelligence teams on integrated initiatives such as Purple Team exercises and adversary simulation.
  • Contribute to the continuous improvement of vulnerability assessment and penetration-testing methodologies, tools, and best practices.

Desired Qualifications

  • Offensive security certifications such as OSCP, eWPT, eCPPT, CRTP, CRTO, or equivalent.

About the Company

Ernst & Young

Global professional services: consulting, assurance, tax

EY (Ernst & Young) provides professional services at a global scale, offering consulting, assurance, tax, and transaction advisory services. It serves clients across industries such as technology, media, real estate, hospitality, and construction. Instead of selling a single product, EY works with clients through tailored engagements where cross-disciplinary teams analyze challenges, design strategies, perform audits, help with tax planning, and assist with mergers or divestitures. What sets EY apart is its worldwide reach and integrated service model, industry-specific expertise, and focus on responsible business practices like sustainability, cybersecurity, and workforce flexibility. EY’s goal is to help organizations improve performance, manage risk, and achieve sustainable growth while building a better working world.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Boston, MA
Founded
1991

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