Data Center Operations Engineer

Milestone Technologies, Inc.; Lyon; Sur place; EUR 50 000 - 70 000; Plein temps

Résumé du poste

Milestone Technologies, Inc. à Lyon recherche un Ingénieur Senior des Opérations du Centre de Données pour soutenir la construction et l'opération d'un nouveau centre de données. Vous devez avoir plus de 7 ans d'expérience dans les opérations de centres de données et être capable de travailler sous pression. Des compétences requises incluent une fluence en anglais et une bonne connaissance des systèmes d'infrastructure critiques. Ce poste offre une opportunité de croissance technique à long terme dans un environnement dynamique.

Qualifications

• 7+ années d'expérience en opérations de centre de données ou en ingénierie d'infrastructure.
• Expérience prouvée dans le soutien des systèmes IT des centres de données.
• Expérience avec des build-outs de centres de données et des déploiements à grande échelle.

Responsabilités

• Assurer la fiabilité et la performance de l'infrastructure du centre de données.
• Participer à la planification de capacité et aux stratégies de maintenance préventive.
• Collaborer avec des équipes interfonctionnelles pour assurer un environnement sécurisé et performant.

Connaissances

Fluence professionnelle en anglais

Expérience pratique des systèmes d'infrastructure IT

Compréhension approfondie des fondamentaux des centres de données

Capacité à dépanner les infrastructures réseau

Compétences en documentation et gestion des incidents

Outils

Linux

Cisco

ServiceNow

Description du poste

Company Overview

Milestone Technologies is a global IT managed services firm that partners with organizations to scale their technology, infrastructure and services to drive specific business outcomes such as digital transformation, innovation, and operational agility. Milestone is focused on building an employee‑first, performance‑based culture and for over 25 years, we have a demonstrated history of supporting category‑defining enterprise clients that are growing ahead of the market. The company specializes in providing solutions across Application Services and Consulting, Digital Product Engineering, Digital Workplace Services, Private Cloud Services, AI/Automation, and ServiceNow. Milestone culture is built to provide a collaborative, inclusive environment that supports employees and empowers them to reach their full potential.

Our seasoned professionals deliver services based on Milestone’s best practices and service delivery framework. By leveraging our vast knowledge base to execute initiatives, we deliver both short‑term and long‑term value to our clients and apply continuous service improvement to deliver transformational benefits to IT. With Intelligent Automation, Milestone helps businesses further accelerate their IT transformation. With more than 3,000 employees serving over 200 companies worldwide, we are following our mission of revolutionizing the way IT is deployed.

Job Overview

Ce poste est ouvert aux candidats francophones ; toutefois, un niveau professionnel en anglais (écrit et oral) est requis pour collaborer avec des équipes internationales.

The Senior Data Center Operations Engineer plays a critical role in supporting the build‑out and long‑term operation of a new, enterprise‑scale data center environment. This position bridges IT infrastructure and critical facilities systems, ensuring the reliability, performance, and resilience of compute, network, power, and cooling systems that support advanced, high‑density workloads.

You will be involved from the early white space (greenfield) deployment phase, contributing to infrastructure bring‑up, commissioning, and validation. As the site transitions into steady‑state operations, you will take ownership of ongoing reliability, incident response, and continuous improvement, ensuring the environment operates at the highest standards of uptime and efficiency.

This role operates as a senior technical counterpart within the data center environment, working alongside site leadership to ensure infrastructure reliability and performance. While the Data Center Manager is responsible for team leadership and work prioritization, this role provides deep technical expertise and operational ownership across critical systems.

You will collaborate across IT, facilities, and vendor teams, acting as a key technical resource and escalation point within a globally connected environment.

This role offers continuity across both deployment and operational phases, providing a strong foundation for long‑term technical growth within a critical infrastructure program. The program is designed with continuity in mind, with a focus on building a stable, high‑performing team that evolves with the site over time.

Key Responsibilities

• Own reliability and performance of data center infrastructure across compute, network, power, and cooling systems
• Support hardware installation, structured cabling, and Layer 1‑3 troubleshooting
• Partner with colocation providers to review MOPs/EOPs, validate redundancy, and oversee maintenance activities
• Operate and support critical infrastructure systems including UPS, PDUs, switchgear, generators, CRAC/CRAH units, CDUs, chillers, and cooling towers
• Contribute to capacity planning, load balancing, and preventive maintenance strategies
• Lead incident response and root cause analysis (RCA) for infrastructure events
• Develop and refine SOPs to improve operational consistency and efficiency
• Implement automation and tooling to streamline data center operations
• Support transition from build phase to steady‑state operations, including process and documentation development
• Collaborate with cross‑functional teams to ensure safe, compliant, and high‑performing environments
• Participate in on‑call rotation supporting 24x7 operations

Required Skills

• Professional fluency in English (written and verbal) is required for coordination with global teams
• Strong hands‑on experience across both IT infrastructure and critical facilities systems
• Deep understanding of data center fundamentals (redundancy, fault tolerance, high availability design)
• Experience operating electrical systems (UPS, PDUs, switchgear, generators, transformers)
• Understanding of cooling systems (CRAC/CRAH, chillers, cooling towers, liquid cooling)
• Proficiency with Linux systems and basic automation (Bash, Python, Ansible)
• Ability to troubleshoot network infrastructure using CLI (Cisco, Arista, Juniper)
• Experience working with colocation providers and reviewing MOP/EOP procedures
• Familiarity with ITSM/DCIM platforms (ServiceNow, Jira, NetBox, Sunbird, etc.)
• Strong documentation, communication, and incident management skills
• Ability to operate effectively in high‑pressure, high‑availability environments
• Strong organizational skills and attention to detail

Required Experience

• 7+ years of experience in data center operations, infrastructure engineering, or critical facilities environments
• Proven experience supporting both data center IT systems and facility infrastructure
• Experience in data center build‑outs, commissioning, or large‑scale deployments (strongly preferred)
• Demonstrated experience leading incident response and performing root cause analysis
• Experience mentoring junior team members or leading technical initiatives
• Familiarity with data center KPIs and operational performance metrics
• Experience managing or supporting outage events in production environments

Preferred Certifications

• CompTIA Server+, Network+, or Linux+
• ITIL Foundation certification
• CCNA, JNCIA, or equivalent

Compensation

Estimated Pay Range:

Exact compensation and offers of employment are dependent on circumstances of each case and will be determined based on job‑related knowledge, skills, experience, licenses or certifications, and location.

Commitment to Diversity & Inclusion

At Milestone we strive to create a workplace that reflects the communities we serve and work with, where we all feel empowered to bring our full, authentic selves to work. We know creating a diverse and inclusive culture that champions equity and belonging is not only the right thing to do for our employees but is also critical to our continued success. Milestone Technologies provides equal employment opportunity for all applicants and employees. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, gender, gender identity, marital status, age, disability, veteran status, sexual orientation, national origin, or any other category protected by applicable federal and state law, or local ordinance. Milestone also makes reasonable accommodations for disabled applicants and employees.