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Ernst & Young

Global professional services: consulting, assurance, tax

Offensive Security Consultant

Offensive Security & TestingUpdated on Nov 14
Full-timeTel Aviv-Yafo, IsraelNo salary listedIn-person

About the Job

Requirements

  • At least 3 years of hands-on experience in infrastructure, networking, systems administration, IT operations, or related technical infrastructure domains.
  • At least 1 year of hands-on experience in offensive security, including application and/or infrastructure penetration testing.
  • Hands-on experience identifying and exploiting common security vulnerabilities across applications and infrastructure, including SQL injection, cross-site scripting, authentication and authorization weaknesses, misconfigurations, insecure services, and other relevant attack vectors.
  • Experience with common penetration testing tools, including Burp Suite, Kali Linux, Nmap, Metasploit, Nessus, Wireshark, and similar offensive security tools.
  • Good written and verbal communication skills, including the ability to document technical findings clearly, write professional assessment reports, and present risks and recommendations to technical and non-technical stakeholders.
  • Ability to manage assigned testing activities independently while working effectively as part of a consulting team.

Responsibilities

  • Perform hands-on offensive security assessments across technologies and engagement types, including Red Team, Purple Team, external and internal network testing, web and mobile applications, thick client applications, web3 environments, and other offensive security domains.
  • Deliver end-to-end penetration testing engagements, including preparation, execution, documentation of findings, risk-based recommendations, and professional client-facing reporting.
  • Collaborate with client technical teams to validate security gaps, explain findings, support remediation discussions, and ensure practical, business-relevant security improvements.
  • Participate in client meetings throughout the engagement lifecycle, including kickoff, scoping, technical walkthroughs, and final report presentation.
  • Educate clients on inherent security risks and provide hardening and mitigation strategies.

Desired Qualifications

  • Familiarity with offensive security methodologies and frameworks such as OWASP, PTES, MITRE ATT&CK, or similar references.
  • Strong understanding of TCP/IP, networking concepts, common ports and protocols, and how they are assessed during infrastructure and network penetration tests.
  • Hands-on familiarity with Active Directory environments, Windows domains, authentication flows, privilege escalation paths, and common enterprise misconfigurations.
  • Proven experience in infrastructure penetration testing, including internal and external network assessments.
  • Relevant professional certifications from a recognized offensive security institute.
  • Familiarity with public cloud environments such as Microsoft Azure, AWS, or Google Cloud Platform, including identity, permissions, exposed services, and common cloud misconfigurations.
  • Ability to conduct source code reviews, database security assessments, or additional specialized security testing activities.

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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