Freelancer profile translated to English.

Description

Microsoft 365 Cybersecurity Consultant — Continuous Security & Monitoring for SMEs

Does your company use Microsoft 365 daily, but no one ensures your environment is truly secure? That's exactly my job.

I help SMEs that don't have a dedicated cybersecurity team regain control of their Microsoft 365 tenant and maintain it over time.

**My Approach**: Continuous support, not a one-time intervention

→ Comprehensive audit of your M365 environment (identities, access, configuration, compliance)

→ Prioritized and realistic remediation plan, adapted to your resources

→ Quarterly monitoring of your security posture with progress reports

→ Monthly awareness training for your teams on best practices

→ Continuous monitoring and adaptation to Microsoft updates

Concrete results achieved with my clients:

→ Microsoft Secure Score improved from 25 to 45 points

→ MFA adoption rate brought to 95%+

→ Zero data loss incidents on managed environments

**Certifications**: SC-300 · SC-200 · AZ-500 · CompTIA Security+

I work on a fixed-fee basis with clear deliverables and measurable results. My missions are conducted entirely remotely — occasional on-site visits possible in the Île-de-France region if necessary.

Do you have a Microsoft 365Business PremiumorE3+tenant and are unsure about your security level? **Let's talk**.

Languages

French
Native or bilingual
English
Native or bilingual
Polish
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

ESN spécialisé en infogérance
Cybersecurity Engineer
DIGITAL AND IT
January 2024 - Today (2 years and 5 months)
Saint-Germain-en-Laye, France
Full responsibility for securing Microsoft 365 environments for a portfolio of 15+ SME/Mid-cap clients in a multi-tenant setup.

Identity and Access Management

Deployment and configuration of Entra ID: conditional access, MFA (adoption rate increased to 95%+), account lifecycle management. Implementation of PIM/JIT on major tenants — reduction from 8 to 2 permanent privileged accounts. Migration of legacy authentication flows to MSAL/OAuth 2.0.

Endpoint and Email Security

Deployment of the Defender suite (Endpoint, Identity, O365, Cloud Apps): policy configuration, automated remediation, incident investigation, live response. Intune management: compliance policies, security baselines, ASR, BitLocker, LAPS.

Audit and Compliance

Regular security audits with Microsoft Secure Score improvement from 25 to 45 points per tenant. Identification of critical findings (compromised admin accounts, applications with excessive permissions). Production of structured reports for management.
Data Protection
Securing Azure backups for 10+ clients: Multi-User Authorization (MUA), soft delete.
Consulting Microsoft Intune Microsoft Entra ID Security Audit
Kury Ingénierie
Systems and Networks Security Administrator
ENERGY AND UTILITIES
October 2021 - December 2023 (2 years and 2 months)
Malakoff, France
The role focused on managing Microsoft environments and implementing a secure infrastructure for an SME.

Tasks performed:

- Daily administration of Microsoft 365 tenants: user management, licenses, groups, basic security.
- Configuration of Conditional Access rules to strengthen account protection.
- Deployment and configuration of Microsoft Defender on workstations.
- Setup and securing of Active Directory servers: domain creation, GPOs, hardening.
- Deployment and configuration of IPsec VPNs to secure remote access.
- IT support: user assistance, level 1/2 incident resolution, maintenance.
Active Directory Microsoft Intune System Administration Microsoft Entra ID Information Security