Data Center Critical Environment Technician Lead
Confidential
Posted: April 1, 2026
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Quick Summary
We are looking for a Data Center Critical Environment Technician Lead position in Marcoussis that requires expertise in data center operations, maintenance, and management.
Required Skills
Job Description
DATA4 MISSIONS
DATA4 creates Smart & Scalable digital facilities for our customers. Our network of highly connected, resilient and sustainable data center campuses underpins our customers’ digital growth in Europe. DATA4 Group finances, designs, constructs and operates its own data centers. Delivered through our data center campus model, we provide our customers with secure, scalable and high-performance data hosting solutions.
DATA4 VALUES
At DATA4 we are driven by our values. These are the core of everything we do – from the proactivity we show in delivering great outcomes for our clients, to the responsibility we show as a key contributor to the digital economy. Our values are :
To be entrepreneurial – we are teams of doers who make things happen - with autonomy, energy and a sense of responsibility
To always take responsibility – for our impact on the people we work with, the society we are part of, and the environment in which we operate
To constantly be adaptable – our business is designed to adapt, answering not only today’s challenges, but also anticipating what’s coming next.
ABOUT THE ROLE
The Critical Environment (CE) Technician Lead will be responsible for overseeing the monitoring and management of critical physical infrastructure activities in our datacenters. This role involves collaboration with external suppliers, internal teams (Facility Management and Critical Environment Management) and reports to the Data Center Infrastructure Lead.
The CE Technician Lead will manage a team of 24/7 technicians, ensuring smooth operations with focus on: real-time duties and mission-critical assignments in data centers, namely: management of Building Management System, Electricity, Cooling and ancillary systems, and key processes such as incident and change management.
The CET Lead works in close cross-functional collaboration with:
the FM Lead, to ensure alignment of operations and maintenance activities,
the CEM Lead, for risk management, major incident handling, and the standardization of operational practices,
the Security department, for the management of incidents occurring outside business hours.
He plays a key role in incident management, communication with internal and external customers, the structuring of documentation (procedures for out-of-hours interventions, operating manuals), and the monitoring of service provider and OEM interventions, mainly during Non-Working Hours (HNO).
He oversees communication between his team and the Facility Management vendors regarding maintenance operations, preventive planning and management of corrective actions.
RESPONSIBILITIES
Operational Oversight of Critical Environments
Monitor in real time the status and availability of critical infrastructures.
Ensure the execution of operations in compliance with SOPs, MOPs, and DATA4 standards (including out-of-hours operations – HNO).
Ensure all maintenance is reported in the system according to the annual plan
Manage contractual commitments (temperature, humidity levels, electrical availability, etc.).
Manage efficient task allocation to the CE Technician team to monitor and troubleshoot mechanical, electrical, HVAC systems, chiller systems, and generators
Validate the proper completion of technical rounds and measure site walkthrough completion from the CE technician team.
Act as the on-site operational reference point in the event of a critical incident.
Attend internal operation meetings with multi-technical providers
Incident Management & Customer Communication
Lead the operational management of incidents: detection and diagnosis, safety measures and mitigation, restoration to normal operating conditions.
Ensure incident reporting and communication to: internal stakeholders (Operations, Management, other departments), external customers, in accordance with established procedures.
Consolidate and validate incident reports, including: timelines, root cause analyses, corrective and preventive actions.
Guarantee the quality, consistency, and responsiveness of all incident communications.
Participate in incident drills to verify procedure adequacy, team control levels and leverage lessons learned.
Creation and Management of Operational Documentation
Validate, maintain, and suggest evolutions on operational procedures (SOPs), in collaboration with FMC/FM teams, maneuvering procedures (MOPs), in collaboration with FMC/FM teams, operating methods related to critical infrastructures (including HNO incidents).
Create and keep updated the operational instruction logbook, including: 24/7 shift handovers, permanent and temporary instructions, operational points of attention.
Ensure CET teams understand and comply with all documentation.
Contribute to the harmonization of documents with DATA4 standards.
People Management
Lead and manage a team of 24/7 technicians, providing guidance, support, and development opportunities.
Develop and manage technician schedules to ensure continuous 24/7 coverage and optimal performance while maintaining full compliance with legal requirements.
Conduct training sessions or ask for training to ensure technicians are updated with the latest procedures and technologies.
Monitor and evaluate technician performance, providing feedback and implementing improvement plans as needed.
Address and resolve any conflicts or issues within the team promptly and effectively.
Participate in the hiring process to ensure the team is staffed with qualified and capable technicians
FM Coordination & OEM Follow‑Up (including HNO)
Act as the operational interface with Facility Management providers.
Assist FM vendors in ensuring proper maintenance, operation, and implementation of equipment as per plan
Ensure the CE technicians are properly coordinating FM vendor activities
Coordinate and supervise OEM interventions including validation of interventions, securing operations, on‑site supervision during Non‑Working Hours (HNO).
Ensure compliance with procedures, authorizations, and safety requirements.
Monitor deviations, action plans, and corrective actions.
Performance, Processes & Continuous Improvement
Define and monitor operational performance indicators: quality of incident reporting, recurring incidents, procedural compliance.
Identify opportunities for improvement in reliability, safety, and operational efficiency.
Support Global Process Owners (GPO) in implementing their processes
IMS Certifications Responsibilities:
Health & Safety: Enforce health and safety rules
Environment: Enforce environmental policies
Information Security: Enforce information security policies
Energy: Enforce policies to reduce energy consumption
REQUIREMENTS
Education and Experience
BTS minimum (electrotechnics, HVAC, energy systems, automation).
At least 5 years of experience in a data center or other critical environment.
Proven experience in 24/7 operations and incident management.
Technical Skills
Knowledge of electrical and mechanical systems (mechanical, HVAC systems, controls).
Ability to provide root cause information in the event of an incident.
Basic communication skills in English.
Excellent communication skills in Italian.
Ability to perform technical maneuvers following relevant procedures.
People Management Skills
Strong leadership and team management abilities.
Excellent communication and interpersonal skills.
Ability to train and develop team members.
Effective conflict resolution and problem-solving skills.
Experience in performance management and employee development.