Marwen HANNACHI
IT Infrastructure Engineer
Salary / Daily rate
Paris, France
Mobility: Île-de-France
Freelance
Can come onsite
Skills
Languages
About me
Intro
I am a Senior Systems & Network Engineer with 12 years of experience, specializing in infrastructure, datacenter environments, disaster recovery (DR/BCP), backup solutions, and security. I am available for mission, including audits, maintenance and operational support (RUN), infrastructure upgrade projects, technical project management, incident management, and Level 3 troubleshooting.
Work experience
Senior Systems and Network Engineer
MOTULFreelance
Nov 2023 - Present
3 years
Paris, France
Responsibilities : Administration and operation of systems, network, and security infrastructures across group datacenters, including performance analysis and operational maintenance (MCO) Management of Windows and Linux environments: patching, backup monitoring, restore validation, and failover testing (BCP/DRP) Acting as an infrastructure expert in the design and evolution of IT architectures (systems, virtualization, storage, networking) Contribution to technology roadmap definition and infrastructure strategy Participation in the design and optimization of the information system and production environments Implementation and improvement of backup, retention, and disaster recovery policies Automation of administrative tasks using Ansible and scripting Writing and maintaining technical documentation (runbooks, procedures, configurations) Administration and monitoring of critical datacenter equipment L2/L3 support for complex incidents and problem resolution Collaboration with international IT teams (configuration, troubleshooting, continuous improvement) Delivery of technical projects related to infrastructure evolution and optimization Technical Environment : Windows Server, Linux, VMware ESXi, Hyper-V, Microsoft Azure, Active Directory, Microsoft Entra ID, DNS, DHCP, Microsoft 365, Veeam Backup, Palo Alto, Fortinet, Switching (Huawei, Aruba), ELK Stack, Ansible, SQL Server, NAS/SAN (HPE, Huawei), CrowdStrike, Cortex, Proofpoint, Varonis
Groupe Point Vision
Oct 2018 - Oct 2023
5 years 1 month
Paris, France
Technical & Security Manager
Dec 2020 - Oct 2023
2 years 11 months
Paris, France
Responsibilities : Leadership and coordination of technical teams (internal staff and external vendors) Organization and supervision of IT production to ensure availability, performance, and security Ensuring operational continuity (MCO) across systems, networks, virtualization, and storage Design and implementation of infrastructure evolutions (new equipment, optimization, automation) Management of releases and production deployments in collaboration with business teams Monitoring of production applications, incident analysis, and performance improvement actions Capacity planning and optimization of infrastructure resources Definition and implementation of backup, archiving, and restore strategies Handling of critical incidents: diagnosis, resolution, and coordination Implementation of security measures to ensure availability, integrity, and confidentiality Conducting security and infrastructure audits, risk analysis, and improvement plans Technology watch and recommendations for IT modernization and security enhancement Technical Environment : Windows Server, Linux, VMware ESXi, Nutanix, Cloud OVH, Cloud Cegedim, Active Directory, GPO, Google Workspace, Veeam Backup, HYCU, NAS (QNAP, Synology), SAN HPE, Fortinet, Cisco Meraki, Zabbix, New Relic, SQL Server, MySQL, Docker, Git, VoIP (Centrex), Darktrace, CrowdStrike
Systems & Network Engineer
Oct 2018 - Nov 2020
2 years 2 months
Paris, France
Responsibilities : L2/L3 support on systems and network infrastructures: troubleshooting and resolution of complex production incidents Administration of Linux and Windows Server environments Deployment and management of web architectures and databases Automation via Shell scripting Backup management using Veeam Backup Monitoring of IT systems and network services using NetXMS Administration of Active Directory and Group Policies (GPO) Virtualization : Deployment and administration of VMware ESXi clusters and VM management via vSphere Installation and management of Proxmox Administration of Nutanix clusters Network & Security : Configuration and management of Netgear switches Administration of Sophos firewalls and security policies Management of IP telephony systems (Grandstream, Centrex) Storage : Administration of NAS (QNAP, Synology) and SAN (HPE) infrastructures Technical Environment : Linux, Windows Server, VMware ESXi, Proxmox, Cloud OVH, Active Directory, GPO, Veeam Backup, NetXMS, NAS (QNAP, Synology), SAN HPE, Sophos Firewall, Switching (Netgear), VoIP (Grandstream), SQL Server, MySQL, Sophos Endpoint
Information Systems Engineer
TOPNET
Feb 2014 - Aug 2018
4 years 7 months
Paris, France
Responsibilities : L2/L3 technical support for production and development teams Administration of Linux and Windows systems Deployment and operation of web and database architectures Development of Shell scripts for automation Backup management for files and databases Monitoring of systems and network services using Zabbix Management of server hardware resources Virtualization : Deployment and administration of VMware ESXi clusters Administration of Hyper-V environments Setup and management of SQL Server clusters Security : Administration of security tools: Kaspersky Security Center, Shorewall, iptables, reverse proxy Storage : Configuration and management of NAS and SAN infrastructures (EMC VNX, CX4) Tools : Implementation and administration of OTRS ticketing system Technical Environment : Linux, Windows Server, VMware ESXi, Hyper-V, SQL Server, Zabbix, Kaspersky, Shorewall, iptables, NAS/SAN (EMC VNX, CX4), OTRS
Education
ENIC
Master’s Degree, Computer Systems Engineering