Data Center Technician L3

Milestone-Technologie; Saint-Jérôme; On-site; CAD 70,000 - 95,000; Full time

Job summary

Milestone-Technologie is seeking a Data Center Technician L3 to lead deployment and support ongoing operations in a high-performance data center environment. You will act as the primary technical escalation point and coordinate with engineers during initial deployment, then assume broader responsibilities in troubleshooting and operations.

You will work across server, network, and infrastructure domains, using Linux for troubleshooting and interfacing with ITSM/DCIM tools.

Qualifications

• 4+ years of experience in data center operations or similar environments.
• Hands-on hardware installation, cabling, and provisioning experience.
• Proficiency with Linux for troubleshooting and scripting tasks.

Responsibilities

• Perform rack & stack, hardware installation, and structured cabling during deployment.
• Support provisioning, configuration, and validation activities.
• Troubleshoot infrastructure across hardware, cabling, and network (L1-3).
• Serve as primary technical escalation point for complex issues.
• Interface with network devices via CLI (Cisco, Arista, Juniper, Dell).
• Maintain asset/inventory records using ITSM/DCIM tools.
• Participate in change management and production changes.
• Support transition from deployment to steady-state operations.

Skills

English communication

Linux systems

Network CLI

Hardware lifecycle management

SOPs and change management

ITSM / DCIM platforms

Documentation reading

Team collaboration

Tools

ServiceNow

Jira

Ansible

Job description

Data Center Technician L3

Job Overview

The Data Center Technician L3 is an advanced, hands-on role supporting the build-out and ongoing operation of a high-performance, enterprise-scale data center environment supporting advanced compute and large-scale infrastructure deployments.

This position is designed for experienced technicians who are comfortable owning complex tasks and serving as a primary technical escalation point within the site. You will play a key role during the initial deployment phase, contributing to hardware installation, structured cabling, and infrastructure bring-up. As the data center transitions into steady-state operations, you will take on increased responsibility for troubleshooting, incident response, and operational execution.

You will work across server, network, and infrastructure domains, collaborating closely with engineers and site leadership to maintain uptime and performance. This role requires strong technical capability, attention to detail, and the ability to operate effectively in a fast-paced production environment.

You will collaborate with cross-functional teams, making clear and professional communication in English (written and verbal) essential for success in this role.

This role offers continuity across both deployment and operational phases, providing exposure to large-scale infrastructure environments and a clear path for progression into advanced technical or engineering roles.

Key Responsibilities

• Perform rack & stack, hardware installation, and structured cabling during deployment phase
• Support system provisioning, configuration, and validation activities
• Troubleshoot infrastructure issues across Layer 1-3 (hardware, cabling, and network)
• Serve as a primary technical escalation point for complex operational issues
• Interface with network devices via CLI (Cisco, Arista, Juniper, Dell)
• Utilize Linux systems for troubleshooting and operational support
• Maintain accurate asset and inventory records using ITSM/DCIM tools
• Participate in change management, including maintenance windows and production changes
• Support transition from deployment to steady-state operations, including documentation and process adherence
• Ensure compliance with safety, security, and operational standards
• Contribute to continuous improvement efforts, including process optimization and operational efficiency initiatives
• Participate in on-call rotation supporting 24x7 operations

Required Skills

• Strong English communication skills (written and verbal) are required for coordination with cross-functional teams
• Advanced hands-on experience with data center hardware, cabling, and infrastructure environments
• Proficiency with Linux systems for troubleshooting and basic scripting tasks
• Ability to configure and troubleshoot network hardware using CLI tools
• Strong understanding of hardware lifecycle management (installation, maintenance, decommissioning)
• Experience working within structured operational processes (SOPs, change management, ticketing systems)
• Familiarity with ITSM/DCIM platforms (ServiceNow, Jira, or similar)
• Strong cable management and structured cabling skills (fiber and copper)
• Ability to read and follow technical documentation, diagrams, and procedures
• Strong problem-solving skills and attention to detail
• Ability to multitask and adapt in a fast-paced environment
• Strong teamwork and collaboration skills, with the ability to work independently when needed

Physical & Operational Requirements

• Ability to lift and move up to 50 lbs
• Comfortable working on feet for extended periods
• Ability to respond to on-call incidents within defined timelines
• Ability to reliably commute to the work location
• Ability to operate material handling equipment (certification preferred)

Required Experience

• 4+ years of experience in data center operations or similar technical environments
• Proven experience with rack & stack, hardware installation, and structured cabling
• Experience provisioning and re-provisioning systems (USB, PXE, or network-based methods)
• Experience bootstrapping network devices and configuring IP addressing
• Working knowledge of Linux systems and basic scripting (e.g., Bash, Ansible)
• Experience supporting enterprise server hardware (Dell, HPE, Supermicro, or similar)
• Strong understanding of networking fundamentals (DNS, DHCP, Layer 2/3 concepts)
• Experience working within ticketing systems (Jira preferred)
• Knowledge of data center best practices (redundancy, fault tolerance, cabling standards)
• Basic understanding of electrical, HVAC, and infrastructure systems

Preferred Certifications

• CompTIA Server+, Network+, or equivalent
• ITIL Foundation
• CCNA or similar networking certification