Data Center Critical Operations Engineer II

CoreSite; Santa Clara (CA); On-site; USD 69,000 - 76,000; Full time

Benefits offered by this job

Medical coverage starting day one

401(k) with company match

Employee Stock Purchase Plan (ESPP)

Starting 16 days of PTO

Public transportation support

Wellness reimbursements

Technology stipend

Educational reimbursement

Charitable donation matching

Financial coaching

Family & mental health support

Pet insurance

Job summary

CoreSite is seeking a Critical Operations Engineer II to operate, monitor, and maintain our data center critical facilities. You will troubleshoot, coordinate with teams, and support customer infrastructure projects while promoting safety, reliability, and continuous improvement.

The role requires working knowledge of data center electrical and mechanical infrastructure, plus collaboration across operations, engineering, and vendors.

Qualifications

• 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.
• Ability to work in a fast-paced, high-availability environment.
• 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.

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.
• Partner with senior technicians, contractors, and vendors on maintenance, upgrades, and expansions.
• Provide advanced remote hands, 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.

Skills

Troubleshooting

Electrical systems

Mechanical systems

Fire life safety

Safety compliance

Documentation

CMMS

Communication

On-call availability

Education

High School Diploma

Tools

CMMS

Electrical test equipment

Job description

CoreSite is seeking a Critical Operations Engineer II to operate, monitor, and maintain our data center critical facilities. You will troubleshoot, coordinate with teams, and support customer infrastructure projects while promoting safety, reliability, and continuous improvement.

The role requires working knowledge of data center electrical and mechanical infrastructure, plus collaboration across operations, engineering, and vendors.