Senior Data Center Operations Engineer

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. The result is a sharper focus on business objectives and a dramatic improvement in employee productivity. Through our key technology partnerships and our people-first approach, Milestone continues to deliver industry-leading innovation to our clients. 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 Job Overview The Senior Data Center Operations Engineer plays a critical role in supporting the deployment and long-term operation of advanced AI infrastructure within a high-performance data center environment. This role bridges IT infrastructure and critical facilities operations, ensuring the reliability, performance, and resilience of compute, network, power, and cooling systems that support some of the world's most demanding AI workloads. You will participate in the commissioning, validation, and operational readiness of new infrastructure while helping establish the operational standards that will govern the site for years to come. As the environment transitions into steady-state operations, you will assume ownership of infrastructure reliability, incident response, and continuous improvement initiatives. This is a hands-on engineering role for professionals who thrive in mission-critical environments and take pride in maintaining world-class uptime, safety, and operational excellence. You will work closely with facilities teams, colocation partners, vendors, network engineers, systems engineers, and global operations teams while serving as a senior technical resource and escalation point within the site. Employment Type Permanent, Full-Time Employment (Finland) This position is intended as a long-term role supporting the continued growth and operational maturity of the data center environment. Cerebras and Milestone are committed to building a stable, high-performing operations team that supports both deployment and ongoing operational phases. Key Responsibilities Own the reliability and operational performance of compute, network, power, and cooling infrastructure. Install, configure, troubleshoot, and maintain server, storage, and networking hardware. Perform structured cabling activities and Layer 1–3 troubleshooting. Partner with colocation providers and facility teams to review MOPs, EOPs, and maintenance procedures. Support and monitor critical electrical systems including UPS, PDUs, switchgear, transformers, generators, and distribution systems. Support and monitor cooling infrastructure including CRAC/CRAH units, CDUs, chillers, cooling towers, and liquid cooling systems. Participate in commissioning, infrastructure acceptance testing, and operational readiness reviews. Lead technical troubleshooting during infrastructure incidents and outage events. Conduct root cause analysis (RCA) and drive corrective and preventive actions. Develop and improve operational procedures, documentation, and runbooks. Support capacity planning, infrastructure forecasting, and preventive maintenance programs. Identify opportunities for automation and operational efficiency improvements. Participate in a 24x7 on-call rotation supporting critical infrastructure operations. Required Skills Professional proficiency in English (written and verbal). Finnish language skills (written and verbal). Strong hands-on experience supporting both data center IT infrastructure and critical facility systems. Deep understanding of redundancy, fault tolerance, high availability, and mission-critical operations. Experience operating electrical infrastructure, including: UPS systems PDUs Switchgear Generators Transformers Power distribution systems Experience supporting cooling infrastructure, i