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Gontran CelenzaGC

Gontran Celenza

Azure Cloud & HCI Infrastructure Consultant | Dev

€550/day
Bruxelles, BE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Gontran

Azure Cloud & HCI Infrastructure Consultant | VMware Migration | .NET/C#

Looking for an expert to modernize your on-premises infrastructure or migrate your VMware environment to Azure Stack HCI? That's exactly what I do.
With over 5 years of experience in IT infrastructure, I assist companies with their transformation projects: Azure Stack HCI deployment, VMware to Azure migration, Hyper-V virtualization, Citrix, and infrastructure automation using Bicep, Terraform, and PowerShell.

What sets me apart: I combine solid Microsoft cloud expertise (Azure, Azure Stack HCI, Azure Arc) with software development mastery (.NET/C#, ASP.NET Core), enabling me to deliver end-to-end solutions—from infrastructure to application tooling. I'm also comfortable with legacy environments (Delphi/Pascal) for progressive modernization missions.

Types of missions I handle:

- VMware → Azure Stack HCI / Hyper-V Migration
- Azure Stack HCI Deployment and Configuration
- Infrastructure Automation (Bicep, Terraform, PowerShell)
- Development of Internal Tools in C# / ASP.NET Core
- Audit and Redesign of Hybrid On-Premise/Cloud Architectures

I work autonomously, with rigor, and respecting deadlines.
Available for remote and on-site missions in Belgium.
  • French

    Native or bilingual

  • English

    Fluent

  • Dutch

    Conversational

Can work on-site
Bruxelles (up to 50km), Mons (up to 50km), Charleroi (up to 50km)

Experience

  • v-Infra Europe
    Cloud Computing Engineer
    PUBLIC SECTOR
    May 2025 - Today (1 year and 3 months)
    Nivelles, BW, Belgium
    System Management and Administration
    • • Windows Server Environments Administration.
    • • Critical Services Management: Active Directory, DNS, DHCP, GPO, File/Print, RDS, etc.
    • • VMware, Hyper‑V, Citrix Environments Administration and Optimization.
    • • System Monitoring, Regular Updates, and Hardening. Cloud & Hybrid Infrastructure
    • • Azure and Azure Stack HCI / Hybrid Compute Environments Administration.
    • • Deployment and maintenance of Azure Stack HCI to run cloud services locally.
    • • On‑premises / Cloud Integration via Azure Arc, Monitoring, Cloud Backup, Hybrid Identity.
    • • Cloud Backup Implementation:
    ◦ • Microsoft 365 Backup Online, SharePoint, OneDrive, Teams).
    ◦ • Veeam Backup Replication for virtual and physical machines.
    • • Security, Network, and Activity Management
    • • Application Patching, Zero Trust.
    • • Firewall, VPN, VLAN, Segmentation, and Monitoring Participation.
    • • Advanced Technical Support Follow-up
    • • Level 3 Support and Escalation for complex system or infrastructure incidents.
    • • In-depth Diagnostics, Sustainable Resolution, and Continuous Optimization.
    • • Creation of Technical Documentation, Operational Procedures, and Internal Best Practices. Projects & Continuous Improvement
    • • Participation in the Design and Implementation of New Infrastructure Projects.
    • • Deployment and Evolution of Azure Stack HCI Platforms (cluster updates, Azure cloud connection) and hybrid platforms.
    • • Progressive Modernization of Backup Infrastructures to the Cloud to Improve Resilience and Reduce Costs.
    • • Development of Scripts and Automations (PowerShell, Azure CLI).
    • • Technological Watch and Continuous Improvement Proposals.
    Azure Cloud Citrix Microsoft Azure VMWARE SAAS
  • Celame
    IT Manager
    ENVIRONMENTAL
    September 2021 - March 2023 (1 year and 7 months)
    Saint-Ghislain, HT, Belgium
    IT Equipment Management and Maintenance. Installation and Configuration of New Workstations. Technical and IT Support for Users (software, hardware, system). User Training and Assistance. Resolution of any problems encountered by users. Management of Hardware Components within the Company. Server Management (user management, passwords, etc.). Active Directory Structure Maintenance and Optimization.
    GPO Management to Ensure Security and Compliance. User Protection Management (antivirus, backups, etc.). Office 365 and MS Windows Management. Development of Python Modules for the Odoo ERP. Odoo ERP Management. Creation of a WordPress Website. Creation of a VPN for Remote User Access. Migration of Systems to the Google Workspace Suite. Implementation and Management of an Internal Google Workspace Backup System on Synology. Installation, Configuration, Update, and Management of the Company's Network Equipment. Internal Systems and Networks Administration. Preparation and Installation of 3CX and Alcatel-Lucent VoIP Solutions.
    Veeam Backup Google Workspace Odoo ERP Active Directory GPO
  • ACE Group Nivelles,
    IT Analyst Developer
    BANKING AND INSURANCE
    April 2019 - August 2021 (2 years and 5 months)
    Belgium
    Analysis and Design of Projects for Public and Private Sector Clients. IT Support for Users. Software Development in C#, Pascal, Delphi, and Cobol. Use of Gitlab for Collaboration on Various IT Projects. Management of Microsoft SQL Server, MySQL, Sybase, and IBM AS/400 (Db2) Databases. Development in Accounting Software (BOB50, Horus software, WinBooks, Popsy). Management and Assistance with Inventory Software for Suppliers. Management and Development in Several ERPs (Odoo, Modullo, Sage BOB50). Citrix Management for Clients. Implementation of Virtualization Systems with VMware Solutions.
    C# Bob50 Winbooks Delphi COBOL

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Education

  • Bachelor's in Management Information Systems
    IEPSCF
    Distinction
  • Fortinet Certified Associate Cybersecurity
    Fortinet
    2025
    Certification

Skill set

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