Critical Operations Engineer II; Swing

About Coresite At Core Site, we empower a connected future through high‑performance data centers and interconnection solutions. We provide reliable, secure infrastructure that enables businesses to connect, collaborate, and grow in an evolving technological landscape.

The Critical Operations Engineer II drives operational integrity and regulatory compliance of data‑center electrical, mechanical, fire life‑safety, and communications systems. This role supports a 4‑hour Swing Shift (3:00 PM–11:00 PM, Monday–Friday) and works closely with the Data Center Manager to maximize uptime and reduce costs.

• Serve as the data‑center subject‑matter expert for electrical, mechanical, controls, and fire life‑safety systems.
• Operate, monitor, maintain, and respond to abnormal conditions in facilities systems.
• Track and analyze operational characteristics for continuous improvement.
• Mentor junior staff and share best practices.
• Collaborate with the Data Center Manager to develop and complete aggressive preventive and predictive maintenance schedules.
• Provide guidance on mechanical and electrical maintenance requirements.
• Analyze existing operations, recommend new technologies, and improve efficiency and cost‑effectiveness.
• Manage systems to avoid unplanned, customer‑impacting outages.
• Ensure mechanical loading capacities maintain optimal cooling efficiency.
• Provide applied mechanical and integrated control expertise across the data center.
• Act as the primary knowledge expert for fire and electrical codes.
• Document procedures for preventative or corrective maintenance in a technical writing capacity.
• Assist the Data Center Manager with maintenance discrepancy database management and resolution of site issues.
• Handle trouble tickets and work‑order completion processes.
• Lead internal and customer infrastructure projects.
• Project tasks include:
  • 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 proper label all equipment
  • Ensure timely completion of SLA processes and data upload to OSS
  • Maintain physical security on Core Site premises
  • Provide day‑to‑day customer service and support
  • Escalate incidents and write reports
  • Monitor building fire alarm system
  • Conduct facility and security tours, documenting findings
• Promote Core Site’s Principles of Operational Excellence and guiding principles.

• Expert understanding of electrical and mechanical systems in a data‑center environment, including electrical distribution, transformers, PLCs, generators, switch gear, UPS, STS, ATS, PDU, chilled water systems, CRAC/CRAH, pre‑action sprinkler systems.
• Expert knowledge of NEC, NFPA 70E, NFPA 72, NFPA 25, and fire‑life‑safety compliance and building codes.
• Expert knowledge of fiber optics/cabling infrastructure and industry best practices.
• Expert knowledge of industrial safety best practices (lockout/tag‑out, arc flash, OSHA, state regulations).
• Strong data‑trending, tracking, and analysis skills with experience using PC‑based monitoring systems.

• 5–7 years experience installing, maintaining, and troubleshooting large commercial/industrial systems (chilled water, large centrifugal chillers, cooling towers, heat exchangers, VFDs, pumps, HVAC, CRAC/CRAH, humidification, BMS, PLC controls, diesel generators, fuel systems, 480/277/208/120 V electric generation and distribution, static UPS, double interlock pre‑action systems).
• Proven leadership and communication skills.
• Expert fiber and copper cabling installation, pull, dress, terminate.
• Experience diagnosing and repairing IT hardware, servers, network switches, and structured cabling.
• Proficiency with Microsoft Office Suite (Word, Excel, PowerPoint, Project).

• Effective communication with customers and internal staff.
• Coordinate, supervise, and communicate with contractors performing maintenance or upgrades.
• Quick learning and problem resolution, both during normal hours and after hours.
• Operate in a rigorous, process‑driven team environment.
• Logical analysis and solution‑oriented mindset.
• Multi‑task multiple projects…