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Salary
≈ $45k – $109k per year (Estimated)
Location
In office (Buenos Aires)
Seniority
Senior · 5+ years exp

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 18, 2026.

Overview
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Impact
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EY

Headquartered in London, United Kingdom, EY (Ernst & Young) is a multinational professional services network and one of the "Big Four" accounting firms. The organization provides financial assurance and auditing, tax advisory, management and technology consulting, and strategy and transactions advisory through its EY-Parthenon arm. Operating across more than 150 countries, it delivers risk management, digital transformation, data analytics, and regulatory compliance solutions to multinational corporations, financial institutions, and government entities worldwide.
Backed by ROPEA

Security Technology Services -Network Security Technology - Protection - Support Engineer

EY Technology

Technology has always been at the heart of what we do and deliver at EY. We need technology to keep an organization the size of ours working efficiently and securely. We have more than 300,000 people in more than 160 countries, all of whom rely on secure technology to be able to do their job every day. Everything we use as a firm depends on our security mindset. Our laptops, our mobile devices, connecting our people to our clients, enabling hundreds of internal tools for us and external solutions delivered to our clients is only successful with effective. Securing technology is our passion please join us and show us your passion.

The opportunity

We are looking for a Network Security Technology Support Engineer, who will become part of our Security Technology Services team. In this role you will be involved in managing and coordinating activities related to network tools supporting the security posture of EY. You will be responsible for enabling new technologies and working with internal and external groups to ensure our network infrastructure is secure and robust. You will be working in a team of like-minded individuals who manage the 24x7 operation of our business-critical technology.

Your Key Responsibilities

The Network Security Technology Support Engineer will support the run state of our network infrastructure security tools and their underlying technologies. They will also be involved in the implementation of new technologies, bringing operational expertise to ensure successful launch as well as upgrading current technologies in production.

  • Provide technical oversight of Information Security technologies that fall under the team’s responsibilities, confirming they are operating within agreed service levels and at peak possible performance
  • Manage, drive and coordinate planned maintenance activities as well as the standardization and automation of processes and procedures for Information Security technologies.
  • Represent the team in specific Project activities, including leading projects and managing the activity of others towards successful completion.
  • Articulate technology issues/concerns that may emerge at any level of the technical stack, and from any component across the ecosystem, to senior business and technology leaders
  • The role will require to be in an OnCall rotation for escalation of production-related issues

Skills and attributes for success

We are interested in people who bring support engineer experience from managing a large enterprise environment - specifically, detailed troubleshooting of issues, strong analytical skills, collaborating with various technical teams across multiple disciplines, and communicating effectively with stakeholders and internal and external customers. As a successful candidate you will have functional and/or technical experience in supporting network technologies including hands on experience on the Firewalls, Proxies, IDS/IPS tools, NetFlow monitoring tools, and python / shell scripting.

To qualify for the role, you must have

  • Bachelor's degree in computer related field or equivalent work experience.
  • Approximately 5+ years of experience in managing network infrastructure
  • The ability to train & coach staff in technical processes and practices.
  • Strong English language skills - written and verbal
  • Experience in project management, service introduction, and service readiness

Ideally, you’ll also have

  • Deep understanding of Proxy infrastructure and Firewalls
  • Deep exposure in the network infrastructure support
  • CCNA/CCNP/Checkpoint/Zscaler certifications will be a plus
  • Information Technology Infrastructure Library (ITIL Foundations)

What we look for

We are looking for people who are comfortable working with culturally diverse on/offshore team members, able to react appropriately during stressful and ambiguous situations.

What working at EY offers

We offer a competitive remuneration package where you’ll be rewarded for your individual and team performance. Our comprehensive Total Rewards package includes support for flexible working and career development, and with FlexEY you can select benefits that suit your needs, covering holidays, health and well-being, insurance, savings and a wide range of discounts, offers and promotions. Plus, we offer:

  • Support, coaching and feedback from some of the most engaging colleagues around
  • Opportunities to develop new skills and progress your career
  • The freedom and flexibility to handle your role in a way that’s right for you

EY is committed to be 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.

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