Microsoft Security Engineer

At EY, we’re all in to shape your future with confidence.

We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.​

Being part of EY in Greece means being part of a continuously growing team, which has been announced as Top Employer for the fourth consecutive year, certified as a Great Place to Work for the third year in a row, and awarded as Best Workplace in Professional Services & Consulting for the second consecutive time, for our almost 3,000 professionals!

At EY, we’ll develop you with future-focused skills and equip you with world-class experiences through coaching and training programs as well as the use of advanced technology and AI. We’ll fuel you and your extraordinary talents in a diverse and inclusive culture of globally connected teams

Join us as we commemorate 100 years of EY in Greece this year. Experience great flexibility under our hybrid operating model across our offices in Athens, Patras, Thessaloniki and Crete and contribute to building a better working world.

The opportunity

We are looking for a Microsoft Security Engineer with strong experience across the Microsoft 365 and Microsoft Security ecosystem, focusing primarily on Microsoft Defender and Microsoft Purview.

Your key responsibilities

Design, implement, and optimize Microsoft Defender solutions, including:

• Defender for Endpoint
• Defender for Office 365
• Defender for Identity
• Defender for Cloud

Implement and manage Microsoft Purview capabilities:

• Information Protection / Sensitivity Labeling
• Data Loss Prevention (DLP) across Microsoft 365 workloads

Define and enforce security policies across:

• Exchange Online
• SharePoint Online
• OneDrive
• Microsoft Teams

Participate in security assessments, hardening activities, and compliance initiatives

Collaborate with IT, Cloud, and Identity teams to deliver end‑to‑end security solutions

Produce clear technical documentation for architecture, configurations, and security decisions

Skills and attributes for success

To qualify for the role you must have:

• Bachelor’s degree in computer science, Engineering, IT, Mathematics or related field, or equivalent work experience.
• Strong hands‑on experience with Microsoft Defender (Microsoft 365 Defender stack)

• Strong analytical/problem-solving skills and the ability to communicate clearly with technical and non-technical stakeholders.

Ideally, you will also have:

     Proven experience with:

• Microsoft Purview Information Protection (Sensitivity Labels)
• Microsoft Purview DLP
• Solid understanding of the Microsoft 365 security model
• Experience in security policy design and implementation
• Good knowledge of Microsoft Entra ID (Azure AD) from a security perspective
• Ability to translate business requirements into effective technical security controls

• High‑level understanding of what Sentinel is, what it does, and when it is used is sufficient
• Considered a plus
• Microsoft certifications (e.g. SC‑200, SC‑300, SC‑400, MS‑500)
• Experience in hybrid (on‑prem & cloud) environments

What we offer you  

Ability to Shape your Future with Confidence by:

• Developing your professional growth:
• You'll have unlimited access to educational platforms, EY Badges and EY Degrees, alongside support for certifications. You will experience personalized coaching and feedback, and gain exposure to international projects, through our expansive global network, empowering you to define and achieve your own success.
• Dive into our innovative GenAI ecosystem, designed to enhance your EY journey and support your career growth. These advanced AI tools will empower you to focus on higher-value work and meaningful interactions, enriching your professional experience like never before.

• Empowering your personal fulfilment: We focus on your financial, social, mental and physical wellbeing.
• Our competitive rewards package, depending on your experience, includes cutting-edge technological equipment, ticket restaurant vouchers, a private health and life insurance scheme, income protection and an exclusive EY benefits club card that provides a wide range of discounts, offers and promotions.
• Our flexible working arrangement (hybrid model) is defined based on your own preferences and team’s needs, and we enjoy various getaways such as short Fridays, Flex Day and Together Day. 
• Our commitment to a sustainable way of operating, encourages volunteerism, promotes sustainable practices and offers opportunities for you to create a positive societal impact.
• Our pride lies in working at EY as one of the most recognized employers in Greece through our multiple awards received over the last 4 years (Top Employer, Great Place to Work and Best Workplace in Professional Services & Consulting).

• Fueling an inclusive culture: We prioritize a diverse, equitable and inclusive environment, where you’ll be embraced for who you are and empowered to use your voice to help others find theirs.

Are you ready to shape your future with confidence? Apply today.

To help create an equitable and inclusive experience during the recruitment process, please inform us as soon as possible about any disability-related adjustments or accommodations you may need.

EY  |  Building a better working world

EY is building a better working world by creating new value for clients, people, society and the planet, while building trust in capital markets.

Enabled by data, AI and advanced technology, EY teams help clients shape the future with confidence and develop answers for the most pressing issues of today and tomorrow.

EY teams work across a full spectrum of services in assurance, consulting, tax, strategy and transactions. Fueled by sector insights, a globally connected, multi-disciplinary network and diverse ecosystem partners, EY teams can provide services in more than 150 countries and territories.

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