Senior Network & Systems Administrator

G Mining Services is a multidisciplinary company offering professional services in the mining industry, for underground and open pit mining projects, in precious, base, or industrial metals. G Mining is one of the most important consulting firms in mining engineering in Quebec, and among the major firms renowned for international projects.

G Mining values its workforce by promoting professional and individual development with unique career opportunities, encouraging collaboration, and offering a variety of stimulating challenges, all within a warm, welcoming, safe, and inclusive work environment.

Reporting to the IT Lead, the incumbent is a senior technical contributor responsible for the proper operation, security, and evolution of the company’s network infrastructure, servers, workstations, software, and peripherals. More specifically, the incumbent will:

•         Diagnose and resolve incidents, and provide escalation support to users regarding equipment and software

•         Contribute to the development, technical design, implementation, training, and maintenance of systems

•         Install, test, and update computer equipment (computers, servers, peripherals, programs, and software)

•         Maintain the security, administration, and day-to-day operation of the equipment

Network Administration

•         Maintain LAN/WAN infrastructure, including switches, routers, firewalls, VPNs, and wireless networks (Fortinet, Cisco and HPE Aruba equipment)

•         Manage network segmentation, VLANs, and routing protocols (BGP, OSPF)

•         Monitor network performance, troubleshoot complex issues, and perform capacity planning

•         Oversee structured cabling and fiber connectivity in on-premises server rooms, including during the transition to the cloud

Systems Administration

•         Administer Windows Server and Linux environments (physical and virtual)

•         Manage virtualization platforms (Hyper-V or Proxmox) and cloud resources (Azure and AWS)

•         Maintain Active Directory, Entra ID, Group Policy, DNS, DHCP, and identity and access management

•         Handle patch management, configuration management, and lifecycle planning

Security & Resilience

•         Implement and enforce security best practices, including hardening, access controls, and vulnerability remediation

•         Configure, maintain, and regularly test backup, disaster recovery, and business continuity solutions

•         Support audits and compliance requirements

•         Respond to and document security incidents

Automation & Operations

•         Automate repetitive tasks

•         Maintain monitoring and alerting systems

•         Create and maintain clear documentation, procedures, runbooks, and network diagrams

•         Maintain an inventory of all IT components in the organization

•         Participate in an on-call rotation (every other week) to resolve critical incidents remotely outside office hours

Leadership

•         Mentor less experienced team members and contribute to technical standards

•         Evaluate new technologies and recommend improvements

Requirements

•         College diploma (DEC) or Attestation of College Studies (AEC) in computer science

•         10+ years of global experience in network and/or systems administration, including at least 2 years in a senior or technical-lead capacity

•         Experience in a multi-site environment

•         Strong knowledge of TCP/IP, switching, routing (including BGP and OSPF), firewalls, and VPN technologies

•         Experience with Fortinet, Cisco and Aruba technology

•         Strong experience with Windows Server/Workstation and Linux administration

•         Strong experience with cloud providers (Azure and AWS), including migrating on-premises workloads to the cloud

•         Strong knowledge of Active Directory and Entra ID

•         Background in regulated or high-availability environments

•         Experience with virtualization and backup/disaster recovery solutions

•         Proficiency in at least one scripting language (PowerShell, Python, or Bash)

•         Excellent written and verbal communication

•         Availability to be on call every other week and to resolve critical incidents remotely outside office hours

•         Ability to communicate in French and English; Spanish is an asset

Abilities

•         Good ability to analyze and synthesize processes

•         Ability to work as part of a team in a multicultural environment

•         Ability to work on-site at the office five days a week

•         Ability to travel overseas

•         Concern for customer service and quality of work

•         Thoroughness and attention to detail

•         Autonomy and initiative

•         Organizational skills and adaptability