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Offensive Security Senior Analyst, Vulnerability Management - EY Global Delivery Services

EY

EY

IT
Buenos Aires, Argentina
Posted on Oct 23, 2025

Offensive Security Analyst, Vulnerability Management

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.

The opportunity

As an Offensive Security Analyst on the Vulnerability Management team, you will play a crucial role in the identification, evaluation and management of EY's digital exposure, working under the guidance of the Vulnerability Exposure Management Lead to identify and mitigate vulnerabilities in the EY digital attack surface. Your responsibilities will also include aiding in the assessment and validation of third-party risk assessments and ensuring that EY's security standards are upheld across all digital assets. Additionally, the analyst will influence and implement proactive defense strategies to maintain the integrity and security of the business's digital footprint.

Your key responsibilities

The analyst will leverage offensive security skills to emulate cyber threat actors and conduct reconnaissance and black-box penetration testing of EY’s digital exposure. This includes identifying and validating vulnerabilities and misconfigurations that could be exploited by adversaries. The role also involves assessment of these assets against newly disclosed Known Exploited Vulnerabilities (KEVs) to ensure timely detection and response. In addition, the analyst will play a key role in conducting third-party risk assessments by validating the reported findings. Collaborating closely with multiple teams across the organization, the analyst will contribute to the execution of EY’s Attack Surface Management strategy, helping to strengthen the security posture of the firm’s digital assets.

Skills and attributes for success

  • Proficient Penetration tester
  • Critical thinking in solving technical problems
  • Ability to handle multiple Penetration testing projects
  • Familiarity with research methodologies
  • Flexibility and comfortability pivoting between diverse environments
  • Developing communication Skills

To qualify for the role you must have

  • A minimum of 4 years of experience in web penetration testing or red teaming
  • Good understanding of web, cloud, and network penetration testing methodologies
  • Well-developed knowledge of offensive security principles
  • Professional-level analytical and problem-solving skills
  • Developing ability to translate vulnerability information to business impact
  • Demonstrated experience with third-party risk assessments
  • Strong communication and interpersonal skills
  • Experience providing prioritization recommendations to stakeholders

Ideally, you’ll also have

  • OWASP training
  • Incident response experience

What we look for

We are looking for a developing Offensive Security Analyst that can operate with supervision and bring new approaches to discovering and evaluating the business’s externally-exposed vulnerabilities. We are seeking a seasoned analyst to improve the organization’s ability to reduce the attack surface while enabling the business. The ideal candidate will seek to improve others while continuously learning and identifying ways to strengthen the organization.

What working at EY offers

As part of this role, you will work in a highly coordinated, globally diverse team with the opportunity and tools to grow, develop and drive your career forward. Here, you can combine global opportunity with flexible working. The EY benefits package goes above and beyond too, focusing on your physical, emotional, financial and social well-being. Your recruiter can talk to you about the benefits available in your country. Here’s a snapshot of what we offer:

  • Continuous learning: You will develop the mindset and skills to navigate whatever comes next.
  • Success as defined by you: We will provide the tools and flexibility, so you can make a significant impact, your way.
  • Transformative leadership: We will give you the insights, coaching and confidence to be the leader the world needs.
  • Diverse and inclusive culture: You will be accepted for who you are and empowered to use your voice to help others find theirs.

We ensure that individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions and to receive other benefits and privileges of employment. Please contact us to request accommodations.

EY is committed to being an inclusive employer, and we are happy to consider flexible working arrangements. We strive to achieve the right balance for our people, enabling us to deliver excellent client service whilst allowing you to build your career without sacrificing your personal priorities. While our client-facing professionals can be required to travel regularly, and at times be based at client sites, our flexible working arrangements can help you to achieve a lifestyle balance.

If you can confidently demonstrate that you meet the criteria above, please contact us as soon as possible.

Make your mark

Apply now