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Ernst & Young

Global professional services: consulting, assurance, tax

Offensive Security Senior Consultant - Tech Consulting

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timeRome, Metropolitan City of Rome Capital, Italy€33k - €35k

About the Job

Requirements

  • At least 2–3 years of experience in Offensive Security, Red Teaming, or Penetration Testing.
  • Solid knowledge and operational use of MITRE ATT&CK, plus familiarity with TIBER frameworks and threat-led approaches.
  • Knowledge of major network protocols, including TCP/IP, DNS, HTTP/S, SMTP, and SMB.
  • Strong command of Windows, Linux, and Unix operating systems, with the ability to work in complex hybrid enterprise environments.
  • Teamwork and internal knowledge-sharing capabilities.

Responsibilities

  • Plan and execute end-to-end Red Teaming operations, defining attack scenarios, objectives, and rules of engagement in alignment with MITRE ATT&CK and TIBER EU / TIBER IT.
  • Execute advanced initial-access techniques, including social engineering such as phishing, vishing, and smishing, within agreed rules of engagement.
  • Conduct Adversary Simulation exercises and contribute to Purple Teaming initiatives, collaborating with SOC and Blue Team to validate detection and response capabilities and identify defensive-control gaps.
  • Develop custom tools, scripts, and payloads to improve automation, OPSEC, and evasion of EDR/XDR controls.
  • Write technical reports containing evidence, MITRE ATT&CK mapping, Indicators of Compromise, risk assessments, recommendations, and remediation plans.
  • Present activity results to technical and business stakeholders, supporting cyber-risk understanding and informed decisions on improvement actions.
  • Contribute to defining and continuously improving internal Red Teaming, Adversary Simulation, and offensive-security methodologies.
  • Support team development through mentoring, knowledge sharing, and technical review of junior staff’s work.
  • Manage and develop Red Teaming infrastructure, including Command & Control environments, extensions to internal tools, BOFs, .NET components, and related hardening and OPSEC processes.
  • Conduct structured research and development to create new tools, techniques, and processes for automation and the evolution of offensive capabilities.

Desired Qualifications

  • Experience with initial-access techniques and social engineering, including phishing, spear phishing, smishing, and vishing.

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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