Security Engineer – M365 E5 Security, Compliance & Data Protection

Job Description & Summary

For those who decode the future, not for everyone. 

We are for those who design solutions that don't just solve problems – they move industries forward. Who sees technology not as tools or platforms, but as invisible infrastructure behind strategy, performance and growth.   

This is a place where you will shape national resilience, lead innovation and guide clients through their most complex transformations. You will partner with decision makers to reimagine what’s possible – from operations and governance to sustainability and trust.   

You won't do it alone. You will work in high-performing, interdisciplinary teams where business fluency meets deep tech expertise. It's a constant value exchange: we give you the space, tools, and people to thrive – and you shape what comes next.   

For the builders, the disruptors, and the ones who troubleshoot with purpose and optimize with vision.   

Solve what others can’t. Grow as much as you dare. Belong in your own way. 

In this dynamic environment, we are looking for ambitious and self-driven Data Security Engineers to join our Tech & Data team.  You’ll work on high-impact projects, collaborate with industry leaders, and tackle real business challenges—all while learning, growing, and redefining what’s possible.  

SOLVE WHAT OTHERS CAN’T.     
  

We’re working for something bigger than ourselves. You’ll be proud to be part of it. Your job description:    

• Implement and optimize Microsoft 365 E5 security and compliance solution, including Microsoft Defender XDR (Defender for Endpoint, Identity, Office 365, Cloud Apps), Microsoft Purview (DLP, Insider Risk, Information Protection), and Entra ID security features.
• Develop and maintain security policies and controls across the M365 ecosystem to protect user identities, sensitive data, email communications, and collaboration environments (Exchange Online, SharePoint Online, Teams).
• Configure and manage Data Loss Prevention (DLP), Information Protection (MIP), sensitivity labels, retention labels, and eDiscovery policies to ensure regulatory compliance and protection of business-critical information.
• Implement Microsoft Defender for Cloud Apps (MCAS) or similar CASB to monitor user activities, detect anomalies, and enforce real-time session controls for sanctioned and unsanctioned SaaS applications.
• Collaborate with compliance, legal, and data governance teams to define classification taxonomies and map them to security controls within Microsoft Purview and related E5 capabilities.
• Perform technical implementation of security features such as multifactor authentication (MFA), Conditional Access, Identity Protection, Privileged Identity Management (PIM), and Just-in-Time (JIT) access.

GROW AS MUCH AS YOU DARE.   
  

We’re a team made for those who thrive on feedback, who are committed to learning by doing, and who see challenges as opportunities. What you bring to the team:    

• Bachelor’s degree in Computer Science, Cybersecurity, Information Technology, or a related field.
• Minimum 2-5 years of experience in security engineering, with hands-on involvement in the deployment and management of Microsoft 365 E5 Security & Compliance features.
• Knowledge of Microsoft 365 security technologies, including:
  • Microsoft Defender XDR suite
  • Microsoft Purview (DLP, Information Protection, Insider Risk, Compliance Manager)
  • Entra ID (formerly Azure AD) and Conditional Access
  • Microsoft Defender for Cloud Apps (MCAS)
• Experience in data classification, data loss prevention, insider risk management, and regulatory compliance controls using M365.
• Understanding of identity and access management, Zero Trust principles, and role-based access control (RBAC).
• Familiarity with cloud-native security operations, Microsoft Secure Score, and M365 service health/performance monitoring.
• Certifications is a plus:
  • Microsoft Certified: Security Operations Analyst Associate
  • Microsoft Certified: Information Protection and Compliance Administrator Associate
  • Microsoft Certified: Cybersecurity Architect Expert
  • Microsoft Certified: Identity and Access Administrator Associate
• Excellent communication and documentation skills, capable of interacting with both technical and business stakeholders.
• Strong analytical thinking and problem-solving skills with a proactive and collaborative mindset.

BELONG, IN YOUR OWN WAY.    

We have created a workplace where we socialize, connect, learn, experiment and create. We support each other and share what makes us different. A place where you can belong - just as you are.  

What’s in it for you:   

• A hybrid working model and a competitive package that values your impact.    

• An advanced office space designed to inspire, innovate, and support more than just work.   

• Career acceleration with personalized growth opportunities that align with your goals—both globally and locally.    

• Well-being and balance through wellness initiatives, extra leave days, and continuous development that puts you first.   

We’re not for those who:   

• Prefer predictable, routine work.    

• Avoid thinking critically and challenging the status quo.    

• Like working in isolation instead of dynamic teams.   

Who we are   

PwC in Greece is the largest professional services firm in the country, with premises in Athens, Thessaloniki, Patras, Ioannina, Rhodes and Volos with more than 2,400 employees. More than 370,000 people in 149 countries across our network share their thinking, experience and solutions to develop fresh perspectives and practical advice. PwC Greece exists to provide top-quality industry-focused assurance, tax, consulting, deals and outsourcing services to industry leading clients   

Don’t miss the opportunity to develop yourself and grow your career in the global leading professional services firm in Greece.   

All applicants will be acknowledged and treated in the strictest confidence.   

For those who Make it Happen. Not for everyone.   
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