Tolga Bulak

On a long-term assignment in a French banking group.

Development of PowerShell scripts for collecting and integrating Active Directory data (vulnerabilities, inventory, ANSSI score) via REST API.

Creation of controllers, models, and views in ASP.NET Core 8.0 with Entity Framework to manage and display collected data.

Implementation of an automatic PowerShell script signing mechanism (code signing certificate) to meet the requirements of certain subsidiaries.

Development of a PowerShell "agent" script for scheduled execution of AD scripts and reporting results to the portal.

Design and development of a PowerShell remediation system for securing Active Directory certificate authentication (KB5014754): modular architecture with 20 centralized functions, intelligent cache management with retention period, and performance indexing to process altSecurityIdentities mappings for thousands of users.

Participation in front-end (HTML, CSS, JS) for certain functionalities.

Contribution to AD security work in conjunction with security and hardening teams.

On a long-term assignment at [CONFIDENTIAL] in a banking group within the Citrix team.

➢ Industrialization of VDA deployment in Session Host mode via PowerShell DSC (Infrastructure as Code): From VDA prerequisite installation to the publication of a test application. Development of custom PowerShell DSC modules. Citrix XenApp 1912 farm of 500 machines.

➢ Development of a PowerShell script for billing non-persistent VDI in a service offering for different business units and subsidiaries: Monitoring Citrix sessions to populate a MongoDB database via the Restheart API with a PowerShell client for resource reallocation.

➢ PowerShell development of a tool for extracting, consolidating, and integrating VDI machine inventory data (~10,000 VMs) into a MongoDB database via the Restheart API.

➢ Development and optimization of various PowerShell tools to facilitate the ongoing maintenance (MCO) of XenApp and XenDesktop farms.

➢ Review of existing PowerShell scripts: Job parallelization, code optimization, documentation, complete overhaul.

➢ Ongoing maintenance (MCO) and incident resolution for VDI and Published Apps farms.

➢ Citrix Netscaler MPX firmware upgrade.

➢ Automation of high school infrastructure deployment via PowerShell: Storage configuration, VCenter and its hosts configuration, VM creation, domain creation and configuration, GPO creation and linking, infrastructure services installation and configuration, Citrix XenApp 7.6 layer deployment, Citrix Netscaler VPX deployment and configuration, Norskale Vuem and Microsoft AppV.

➢ Industrialization of the migration of Samba 3 directories and high school data to Active Directory. Work environment: Windows Server 2012R2, Debian, Samba v3, Copyright2, PowerShell, Bash.

➢ Deployment of high school infrastructure, migration of accounts and data, updating Citrix masters, application validation and installation, load testing, deliverable writing, skills transfer.

MCI Project:

Integration of virtual machines and infrastructure services into an IaaS cloud, hosted in the Neocles datacenter.

➢ Integration of MCI Active Directory: 24 sites including 6 with RODC.

➢ Configuration of DHCP, DNS services for the entire MCI domain.

➢ Migration of Active Directory objects via PowerShell.

➢ Deployment of a new XenApp 5.0 platform and migration of business applications.