Critical Operations Engineer II

About Core Site

At Core Site, we empower a more connected future through high-performance data centers and interconnection solutions. Recognized as a trusted partner in digital transformation, our strategically located facilities and innovative services enable businesses to connect, collaborate, and grow.

The Critical Operations Engineer II is responsible for ensuring the operational integrity and regulatory compliance of the data center’s electrical, mechanical, fire life safety, and communications infrastructure.

Day Shift Monday – Friday 7:00 am – 3:00 pm

• Act as data center subject matter expert for electrical, mechanical, controls, and fire life safety systems.
• Operate, monitor, maintain, and respond to abnormal conditions in facility systems (Electrical, Mechanical, Communications, Building Monitoring, and Control).
• Track and trend operational characteristics.
• Mentor junior staff.
• Work with the Data Center Manager to track and complete an aggressive preventive and predictive maintenance schedule.
• Provide guidance to the Data Center Manager to determine maintenance requirements for mechanical and electrical systems.
• Ensure the data center operates at maximum efficiency, analyze existing conditions, recommend new technologies, and improve overall efficiency and cost reduction.
• Manage systems to avoid unplanned, customer‑impacting outages.
• Manage the data floor and back‑of‑house mechanical loading capacity to ensure the cooling system operates at its highest efficiency.
• Provide applied mechanical and integrated control expertise for the entire data center.
• Serve as the primary knowledge expert concerning fire and electrical codes.
• Serve in a technical writing capacity for the derivation of procedures for preventative or corrective maintenance activities.
• Assist the Data Center Manager with database management of maintenance discrepancies and work with Operations management to resolve site issues based on agreed priorities.
• Trouble ticket management.
• Work order completion process.
• Infrastructure projects (internal/customer)
  • Cage build‑outs
  • Overhead installations
  • Rack and stack
  • Navigate and utilize a CMMS system
  • Use developed procedures to solve problems
  • Assist in asset and consumable inventory management
  • Track and properly label all equipment per established procedures
  • Ensure timely completion of processes relative to SLAs and upload data to OSS
  • Provide physical security within Core Site premises
  • Offer day‑to‑day exceptional customer service and support
  • Escalate incidents and prepare report writing
  • Monitor the building fire alarm system
  • Conduct facility and security tours, documenting and responding to issues
  • Adhere to and promote Core Site’s Principles of Operational Excellence and guiding principles
• Technical writing capacity for maintenance procedures.

• Expert understanding of electrical and mechanical systems used in a facility and data center environment, including electrical distribution, transformers, PLCs, generators, switch gear, UPS systems, chilled water systems, CRAC/CRAH units, pre‑action sprinkler systems, etc.
• Expert knowledge of NEC, NFPA 70E, NFPA 72, NFPA 25, and related building codes for fire life safety.
• Expert knowledge of fiber optics, cabling infrastructure and industry best practices.
• Expert knowledge of industrial safety best practices (lockout/tag‑out, arc‑flash protection, OSHA and state regulations).
• Expert knowledge of data trending/tracking/analysis and ability to use PC‑based integrated critical monitoring systems.

• 5–7 years of experience installing, maintaining, and/or troubleshooting large commercial and industrial systems such as large chillers, cooling towers, heat exchangers, water treatment systems, VFDs, pumps, HVAC equipment, CRAC/CRAH units, BMS/PLC controls, emergency diesel generators, and electrical distribution.
• Proven leadership skills.
• Expertise in laying out, pulling, dressing, and terminating fiber and copper communications cabling.
• Experience diagnosing and repairing IT hardware, servers, network switches, and structured cabling.
• Excellent communication skills, both written and oral, including proficiency…