(M/W) Infrastructure, Systems & Automation Administrator

Wandercraft; Paris; Sur place; EUR 45 000 - 65 000; Plein temps

Résumé du poste

Wandercraft in Paris is looking for an Infrastructure, Systems & Automation Administrator to enhance its IT infrastructure focused on Linux environments. In this role, you will administer virtualized infrastructure, manage Linux systems, and automate admin tasks while providing user support.

The ideal candidate holds a degree in Computer Science and has 3 to 5 years of experience in systems administration, along with a strong interest in IT automation and infrastructure optimization.

Qualifications

• 3 to 5 years of professional experience in systems administration or Linux infrastructure management required.
• Solid knowledge of network infrastructures and Microsoft 365 administration expected.
• Strong interest in IT automation and infrastructure optimization highly valued.

Responsabilités

• Administer virtualized infrastructure based on Proxmox VE.
• Manage virtual machines and Linux containers.
• Monitor and ensure operational continuity of IT infrastructure.
• Provide technical support for end users (Level 1 / 2 / 3).
• Automate systems administration tasks using Bash, Python, Puppet.

Connaissances

Virtualization

Active Directory / Entra ID

Identity Management & IAM

Backup & Disaster Recovery (DRP)

Formation

Bachelor’s degree to Master’s degree in Computer Science, Information Systems, Networks, Cybersecurity, or related field

Description du poste

Reporting to the IT Manager, the Infrastructure, Systems & Automation Administrator will be responsible for the following duties.

This position plays a strategic role in the continuous evolution of the company’s IT infrastructure, with a strong focus on Linux environments, automation, identity management, and hybrid infrastructures.

• Administration of the virtualized infrastructure based on Proxmox VE
• Management of virtual machines and Linux containers
• Administration of Linux systems (Debian / Ubuntu)
• Management of Docker environments and internal services
• Monitoring and ensuring the operational continuity of IT infrastructure

Backup, Disaster Recovery & Storage

• Administration of backup systems through Proxmox Backup Server
• Management of local and external backup strategies (Wasabi S3)
• Execution of restoration tests and participation in Disaster Recovery Planning (DRP)
• Management of ZFS storage systems

Network & Security

• Administration of network equipment and Fortinet firewalls
• Management of VPN solutions (IPSec / OpenVPN)
• Management of VLANs, routing and network segmentation
• Participation in network infrastructure evolution and cybersecurity projects
• Deployment and maintenance of WiFi infrastructures

Microsoft 365, Identity & Directory Services

• Administration of Active Directory / Samba-AD and hybrid environments
• Management of identities, groups, access policies and directory synchronization
• Administration of Microsoft 365 / Exchange Online / Entra ID
• Participation in the evolution of IAM and SSO solutions for internal and SaaS applications
• Management of access rights across Linux and Windows environments
• Deployment and maintenance of Linux workstation integration mechanisms within the identity infrastructure
• Administration, deployment and maintenance of Linux workstations
• Administration and evolution of configuration management tools (Puppet)
• Management of updates, configuration and lifecycle of Linux workstations
• Participation in provisioning automation and compliance maintenance of user devices
• Management of authentication and Linux workstation integration mechanisms within the IT infrastructure

User Support & Assistance

• Technical support for end users (Level 1 / 2 / 3)
• Management of hardware and software incidents
• Preparation and deployment of workstations
• Writing and maintaining technical documentation and procedures

Projects & Continuous Improvement

• Automation of systems administration and workstation management tasks (Bash, Python, Puppet, GitLab CI/CD)
• Participation in the industrialization and standardization of IT deployments
• Development and improvement of automated installation and configuration mechanisms
• Contribution to continuous improvement of IT tools and internal processes

IT Governance & Documentation

• Participation in defining technical standards and IT best practices
• Documentation of architectures and operational procedures
• Contribution to infrastructure evolution and strategic IT discussions

Preferred experience

Diploma

Bachelor’s degree to Master’s degree (BSc to MSc) in Computer Science, Information Systems, Networks, Cybersecurity, or a related field

Required experience

A minimum of 3 to 5 years of professional experience in systems administration, Linux infrastructure management, or hybrid IT environments is required. Solid knowledge of network infrastructures, virtualized environments, Microsoft 365 administration, and identity management mechanisms (Active Directory / Entra ID) is expected. A strong interest in IT automation, infrastructure optimization, and continuous improvement of IT processes is highly valued.

Skills (hard and soft skills)

• Virtualization - Independent Level
• Active Directory / Entra ID - Expert Level
• Identity Management & IAM - Independent Level
• Backup & Disaster Recovery (DRP) - Independent Level