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Alejandro T.AT

Alejandro T.

Cloud Security Architect | Azure | M365

€350/day
Madrid, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alejandro

Professional with over 10 years of experience working with Microsoft technologies, evolving from traditional on-premise environments to current cloud models in Microsoft 365 and Azure.

I work in evaluation and strategy phases as well as in the design, implementation, and continuous improvement of solutions within the Microsoft ecosystem, adapting to the maturity level and real needs of each client.

I regularly participate in:

Technical evaluations and roadmap definition in Microsoft 365 and Azure.

Design of security, compliance, and data governance architectures.

Implementation and tuning of controls with Entra ID, Microsoft Purview, and Defender XDR.

Preparation of environments for advanced scenarios like Copilot for Microsoft 365.

Definition of Zero Trust models, information protection, and data lifecycle management.

Support for technical and business teams through knowledge transfer and practical training.

Technical audits, optimization of existing configurations, and resolution of complex scenarios.

My approach combines consulting vision and execution capability, translating regulatory, security, or cloud adoption requirements into applicable, sustainable solutions aligned with standards such as NIST, CIS, or ISO 27001.
  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Telefónica Tech
    Cloud Security and Architecture
    TELECOMMUNICATIONS
    June 2024 - Today (2 years)
    Consulting, architecture, and auditing of cloud security in public clouds (Azure, AWS, GCP)
    Consulting and auditing in Microsoft 365 environments (Defender XDR, Purview, Intune, Entra ID)

    Analysis of current situation, vulnerability detection, auditing based on regulatory compliance frameworks, recommendations for infrastructure optimization through executive and technical deliverables.
    Microsoft Azure Cloud computing Microsoft Purview AWS Microsoft Defender
  • Westcon Comstor
    Cloud Security Consultant
    June 2023 - June 2024 (1 year)
    Digital transformation project for the public sector with an expert consultant role, my participation in the team had the following functions:
    - Security audit in Microsoft 365 and Entra ID environments to assess compliance with ENS regulations, Microsoft best practices, and CCN-STIC guides.
    - Workshops for companies on Microsoft identity and access solutions (Entra ID, Intune)
    - Consulting on Microsoft Defender XDR and public cloud architecture on AWS and Azure.
  • AUREN DIGITAL MAD S.L
    Consultant - Systems Administrator
    TECH
    January 2018 - June 2023 (5 years and 5 months)
    Madrid, Spain
    • Administration of cloud services in Azure (IaaS, Azure Backup, Storage Accounts,
    • Networking, VPNGateway, identity and governance, App Service, subscription management, Azure AD, Intunes, etc.
    • Administration of cloud services in AWS (EC2, S3, EBS, RDS)
    • Administration and configuration of environments in Office 365 (Teams, Sharepoint, Exchange, Outlook, Onedrive, Planner, etc.) Training, migrations, design, and implementation.
    • Management of Azure DevOps console, Boards, and configuration of Pipelines for deployments and continuous integration.
    • Administration and support of on-premise infrastructure (switches, routers, firewalls, equipment)
    • Administration of physical and virtual on-premise servers Windows Server 2008-2022.
    • Virtualization in Hyper-V.
    • Administration of AD DS domain services (additions, deletions, policies, security,
    • troubleshooting, password management)
    • Administration and configuration of Windows 10 clients.
    • Administration of DNS, DHCP, GPO, Remote Desktop services.
    • VPN Solutions (Open VPN, Watchguard Mobile VPN, Azure VPN P2S and S2S)
    • Administration and configuration of backups (Veeam, Acronis, Retrospect, Cobian,
    • Azure Backup, Amazon Backup)
    • Antivirus management (Bitdefender, ESET, F-Secure)
    • Configuration and administration of Web services in IIS
    • Use of ticketing tool (Jira)
    • Administration and configuration of hybrid environments (Azure AD Connect, SOO)
    • Storage management and administration
    • (QNAP, Netgear, Synology, Ctera, Azure Storage, Amazon S3.
    • Configuration of remote desktop environments, RemoteApp.
    • Basic use of Docker and Ubuntu server administration.
    • Improvement proposals, documentation, design, and architectures.
    • Creation of manuals, Office 365 training for clients.
    Microsoft Azure Microsoft Office Windows Server Azure DevOps Amazon Web Services (AWS)

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