Critical Operations Engineer II (Swing) (MI2)

About the role

The Critical Operations Engineer II (COE II) plays a crucial role in ensuring the reliability and uptime of critical data center systems. This position involves operating, maintaining, and troubleshooting electrical, mechanical, cooling, and fire/life safety systems. The COE II also supports customer infrastructure projects and collaborates with various stakeholders to enhance operational excellence.

Responsibilities

• Operate, monitor, maintain, and troubleshoot mission-critical electrical, mechanical, and life safety systems to ensure uptime and reliability.
• Perform facility inspections, respond to abnormal conditions, and document findings.
• Track, trend, and analyze system performance; utilize CMMS to manage work orders and maintenance.
• Support electrical distribution from utility and generator switchgear through UPS and customer load.
• Maintain and coordinate work on generators, switchgear, UPS, STS, ATS, PDUs, transformers, and power circuits.
• Operate and maintain chilled water, HVAC, CRAC/CRAH, humidification, and central plant systems.
• Support cooling optimization, pumps, VFDs, cooling towers, heat exchangers, and water treatment.
• Monitor wet sprinkler and double-interlock pre-action systems and associated detection devices.
• Support customer infrastructure projects including cage builds, rack and stack, overhead installs, power, and cabling.
• Collaborate with senior technicians, contractors, and vendors on maintenance, upgrades, and expansions.
• Manage trouble tickets, incidents, and customer requests.
• Lead administrative activities across CMMS, ticketing, monitoring, and other operational platforms; maintain accurate documentation, provide timely updates, and coordinate with internal teams, vendors, and customers.
• Provide technical guidance and operational leadership to less experienced team members during routine operations, maintenance activities, and incident response.
• Contribute to procedures, documentation, and continuous improvement while promoting Operational Excellence.

Requirements

• Strong troubleshooting and problem-solving skills with the ability to apply technical knowledge effectively.
• Self-motivated, dependable, and accountable with a strong work ethic.
• Team-oriented mindset with the ability to collaborate across operations, engineering, and customer teams.
• Commitment to safety, quality, and operational excellence.
• Clear written and verbal communication skills.
• Strong understanding of data center electrical and mechanical infrastructure.
• Advanced understanding of the interaction between electrical, mechanical, UPS, generator, and BAS/BMS systems and the ability to assess operational impacts across interconnected systems.
• Working knowledge of NEC, NFPA 70E, NFPA 72, NFPA 25, OSHA, and fire life safety requirements.
• Comfortable using hand tools, electrical test equipment, and standard computer applications.

Preferred Experience

• Electrical distribution systems including generators, switchgear, UPS, STS, ATS, PDUs, and transformers.
• Mechanical systems including chilled water, HVAC, CRAC/CRAH, humidification, pumps, VFDs, cooling towers, and heat exchangers.
• Fire protection systems including wet sprinkler and double-interlock pre-action systems.
• BMS, PLC controls, and integrated monitoring systems.
• Fiber and copper cabling installation, termination, and testing.
• Proficiency with fiber optics, structured cabling, and telecommunications infrastructure.
• Working knowledge of basic security systems, including access control, CCTV, and facility monitoring systems.

Education/Experience

• High School Diploma or greater.
• 2-5 years of experience in the data center industry.
• Proven hands-on experience with large commercial or industrial electrical and mechanical systems.
• Strong fit for candidates with experience in the military with HVAC or Electrical training.

Physical Demands

The position demands flexibility to work in a fast-paced, high-stress environment with changing priorities, including evenings, weekends, holidays, and on-call hours as needed. Must pass background check, employment verification, and other pre-employment requirements.

Benefits

CoreSite offers a comprehensive benefits package including first-day medical insurance through Cigna, dental insurance through Delta Dental, vision insurance through VSPTelemedicine, and more. Additionally, there are opportunities for wellness programs, educational reimbursements, and financial planning support. For more details, visit https://www.coresite.com/applicant-privacy-notice.

General Statements

To apply for this position, applicants must be currently authorized to work in the United States on a full-time basis. The employer will not sponsor applicants for work visas. Please note that all offers of employment are contingent upon the successful completion of a background check and, where permitted by law, a 5-panel drug test conducted after the offer letter is signed, which will screen for THC, opiates, PCP, cocaine, and amphetamines. Thank you for your understanding and cooperation. Applicant Privacy Notice: CoreSite is committed to protecting the privacy and security of personal information submitted by applicants. For more information, please refer to https://www.coresite.com/applicant-privacy-notice. Unauthorized reproduction or distribution of this job posting on external sites is prohibited without prior written consent from CoreSite. We are not responsible for any postings or offers not originating from our official channels or approved partners.