Data Center Operations Technician

Role summary TX01 is a two-hall AI supercomputing site running more than 25,000 NVIDIA GB300 GPUsin 357 liquid-cooled NVL72 racks. Technicians are the hands-on owners of this hardware. They work on compute trays, NVLink switch trays, InfiniBand and Ethernet fabrics, optics and cabling, with the goal of keeping every rack in service for a customer that runs on a strict availability SLA. About the team You will join Chronoscale's DC Operations team, which is part of Neocloud Platform Engineering (NCPE). The role reports to the Director of Customer Solutions Engineering.

Work at TX01 is split three ways:

• The facility provider runs building power, cooling and the BMS.
• Chronoscale's NOC monitors the fleet and triages issues remotely.
• DC Ops technicians do all the hands-on work on the IT hardware: diagnosing faults, repairing and replacing parts, and getting nodes back into service.

Responsibilities

• Diagnose and repair GB300 NVL72 hardware faults, including compute tray, NVLink switch tray, GPU, CPU, DIMM, NIC, SSD, PSU and BMC/BIOS-level issues.
• Replace and reseat optics, transceivers, DACs and fiber across InfiniBand, frontend Ethernet and out-of-band networks. Clean and inspect fiber and trace cabling end to end.
• Work tickets assigned by the NOC within SLA. Record the diagnosis, the parts useand the actions taken on every ticket in Chronoscale's ServiceNow records.
• Run the RMA process with the OEM: capture failure data, tag and ship failed parts, receive replacements and keep on-site spares inventory accurate.
• Support rack-level work: rack install and removal, rack swaps, power whips, and coordination with the facility provider on liquid-cooling connections and leak response.
• Run burn-in, validation and return-to-service checks after a repair, then hand nodes back to the platform team.
• Support Tranche 2 rack installs, cabling validation and bring-up alongside the OEM install crews.
• Follow site safety procedures: lockout/tagout, two-person lifts, ESD handling and liquid-cooling safety.
• Hand off at the end of every shift with a written status of open tickets and in-progress work.
• Take part in the on-call rotation and respond on site when the NOC escalates.

Schedule and On-Call TX01 is staffed 20 hours a day on weekdays and 8 hours a day on weekends. On-call covers the remaining hours. Shift assignments rotate, and holiday coverage is shared across the team.

• Weekday day shift: 6:00 AM to 4:00 PM, 10-hour shifts, 4 days per week
• Weekday swing shift: 4:00 PM to 2:00 AM, 10-hour shifts, 4 days per week
• Weekend shift: 8:00 AM to 4:00 PM, Saturday and Sunday, 8-hour shifts, weekend rotation shared across the team
• On-call: 2:00 AM to 6:00 AM on weekdays and 4:00 PM to 8:00 AM on weekends, one week in four, with on-site response when the Network Operations Center (NOC) escalates

Required qualifications

• 3+ years of hands-on data center hardware operations in a hyperscale, colocation, HPCor GPU cloud environment.
• Proven server break-fix experience at the component level, using vendor diagnostics,BMC/IPMI/Redfish and system logs.
• Experience with high-density fiber and copper cabling: optics, MPO/MTP, DACs, fibercleaning and inspection.
• Comfortable working in Linux from the command line for basic diagnostics (dmesg,lspci, ipmitool, nvidia-smi or equivalent).
• Experience working a ticketing system and running RMAs with an OEM.
• Able to work 10-hour shifts, swing shifts and weekends, and to take part in an on-callrotation.
• High school diploma or equivalent.
• Preferred qualifications
• Hands-on experience with NVIDIA GB200/GB300 NVL72, HGX H100/B200/B300 orother GPU server platforms.
• Experience with direct-to-chip liquid cooling: manifolds, quick disconnects, CDUs andleak detection.
• InfiniBand experience (NVIDIA Quantum switches, ConnectX/BlueField NICs, fabricdiagnostics).
• Ethernet switching experience (Arista, NVIDIA Spectrum), including identifying linksand optics from the switch CLI.
• Industry certifications such as CompTIA A+/Server+/Network+, BICSI, CDCTP orNVIDIA data center certifications.
• Experience with large-scale rack install and bring-up programs.

Physical requirements and work environment

• Able to lift up to 50 lb on your own; heavier components are handled with a two-personlift or lift equipment.
• Able to stand, kneel, bend and climb ladders for long stretches during a shift.
• Able to work in a data hall with high noise, hot and cold aisles and liquid-cooledequipment, wearing the required PPE.
• Able to tell apart color-coded cables and indicator LEDs.
• Must hold a valid driver's license and be able to pass a background check for datacenter access.

Compensation:

The pay rate will be based on the assigned work shift and may vary depending on the schedule and operational requirements.

Please note that ChronoScale cannot provide employment authorization sponsorship or immigration support for this role, now or in the future. Candidates must have valid work authorization that does not require employer sponsorship.

The company has reviewed this job description to ensure that essential functions and basic duties have been included. It is intended to provide guidelines for job expectations and the employee's ability to perform the position described. It is not intended to be construed as an exhaustive list of all functions, responsibilities, skills and abilities. Additional functions and requirements may be assigned by supervisors as deemed appropriate. This document does not represent a contract of employment, and the company reserves the right to change this job description and/or assign tasks for the employee to perform, as the company may deem appropriate. This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employees will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities. To perform this job successfully, the incumbents acknowledge that they possess the skills, aptitudes, and abilities to perform each duty proficiently. Some requirements may exclude individuals who pose a direct threat or significant risk to the health or safety of themselves or others. This document does not create an employment contract, implied or otherwise, other than an “at will” relationship. The company is an Equal Opportunity Employer, drug free workplace, and complies with ADA regulations as applicable.