Critical Environments Operator & Mission-Critical Infrastructure Specialist
I protect high-availability platforms, respond to alarms, and execute structured procedures where downtime is unacceptable.
Supporting AI data centers, edge infrastructure, and enterprise facilities with disciplined O&M, incident response, and hardware triage.
Mission-Critical Uptime
99.9% availability sustained
Incident & Alarm Stabilization
Accelerated response times
Physical Infrastructure Operations
Hardware & MEP awareness
Operational Proof
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Mission-Critical Uptime
99.9% availability sustained
AWSVMwarePowerEdgeWhat this means: Production environments require rigid adherence to change control and operating discipline.
How I approach it: I maintain strict monitoring, alerting, and escalation practices across distributed production systems.
Example: Led AWS platform operations at Choice Hotels, improving release quality and deployment velocity by 25%.
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Incident & Alarm Stabilization
Accelerated response times
RunbooksMonitoringRoot Cause AnalysisWhat this means: When an alarm triggers, speed and accurate triage prevent localized issues from becoming catastrophic.
How I approach it: I standardize intake, utilize runbooks, and coordinate cross-functional teams to stabilize the environment.
Example: Built operational runbooks at Plexus Worldwide that improved response consistency and reduced manual troubleshooting.
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Physical Infrastructure Operations
Hardware & MEP awareness
Rack & StackLOTOCablingWhat this means: Data centers require hands-on technical proficiency with power, cooling, and heavy hardware systems.
How I approach it: I apply my electronics training and mechanical troubleshooting logic to safely execute hardware installations and fault triage.
Example: Performed hands-on calibration, production validation, and Tier 1-3 operational support for enterprise manufacturing equipment.
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Disciplined Documentation
CMMS & SOP execution
CMMSSOP / MOPJira / ConfluenceWhat this means: High-availability operations run on accurate records, tickets, and Standard Operating Procedures.
How I approach it: I document every finding, coordinate vendor support, and ensure tickets are closed cleanly with root-cause follow-through.
Example: Developed cloud-based reporting workflows for Guardian Home Check to improve service consistency and customer visibility.
Built for High-Density Operations
My foundation was built as a Combat Engineer (12B) in the U.S. Army National Guard, where precision, safety, and discipline were non-negotiable. I transitioned those skills into managing mission-critical AWS environments, enterprise data center hardware, and complex manufacturing technology.
This portfolio demonstrates my operating pattern: follow the runbook, secure the facility, diagnose the fault, document the resolution, and protect production uptime at all costs.
Critical Environment Operations
Enterprise-focused delivery and support operations aligned to physical infrastructure reliability.
Alarm Response & Triage
Enterprise-focused delivery and support operations aligned to physical infrastructure reliability.
Hardware & Network Troubleshooting
Enterprise-focused delivery and support operations aligned to physical infrastructure reliability.
CMMS & Technical Runbooks
Enterprise-focused delivery and support operations aligned to physical infrastructure reliability.
Vendor & Contractor Coordination
Enterprise-focused delivery and support operations aligned to physical infrastructure reliability.
Safety First & Preventive Maintenance
Enterprise-focused delivery and support operations aligned to physical infrastructure reliability.
Operational Experience
- Supervised infrastructure operations for high-availability business systems at Plexus Worldwide, sustaining 99.9% uptime.
- Led mission-critical AWS platform operations at Choice Hotels, improving deployment velocity by 25%.
- Managed VMware and AWS production environments at Zocdoc, focusing on remote data center infrastructure and out-of-band management.
- Performed hands-on calibration and production validation for CNC/component systems at PulteGroup manufacturing plants.
- Built structured inspection workflows and cloud-based reporting systems for Guardian Home Check field operations.
Supported Infrastructure Platforms
From cutting-edge AI server clusters to enterprise virtualization hardware, I have experience supporting, troubleshooting, and documenting high-availability data center infrastructure.
NVIDIA DGX H100 / B200
Supported high-density AI accelerators requiring precision rack & stack, strict cooling adherence, and hardware triage.
AI ComputeDell PowerEdge XE9680
Enterprise server systems managed for mission-critical uptime, firmware patching, and part replacements.
Enterprise InfrastructureSupermicro AI GPU Servers
Managed complex 8U GPU servers requiring redundant power cabling, out-of-band management validation, and network isolation.
High-Performance ComputingLiquid Cooling Systems
Awareness and operational monitoring of chilled water systems, leak detection, and thermal thresholds.
Facilities OperationsGuardian Home Check
Founded and operated a field service business demanding rigorous safety-focused inspections and customer reporting.
Field OperationsOperational Rigor & Discipline
- Execute Standard Operating Procedures (SOPs) for hardware and facility management.
- Coordinate with vendor field engineers for complex part replacements under warranty.
- Perform rigorous Receiving, Staging, and Visual Inspections before deploying any rack.
- Manage CMMS-style tickets with disciplined root-cause follow-through and photo documentation.
- Prioritize safety and Lockout/Tagout (LOTO) protocols above schedule pressure.
Runbook Library Preview
Standard Operating Procedures
I don't just clear tickets; I operate by the book. Here is a preview of the structured runbooks and operational discipline I apply to protect mission-critical hardware and ensure personnel safety.
Procedure: NVIDIA DGX / PowerEdge XE9680 GPU Triage 1. Confirm asset identity and rack location. 2. Review alert summary and affected GPU/accelerator identifier. 3. Access BMC or vendor health tools only if authorized. 4. Record exact event text, timestamps, GPU ID, and host state. 5. Do NOT reseat or remove GPU modules unless directed by approved procedure.
- Stop-Work Conditions: GPU thermal alarm, NVSwitch fault, missing from inventory, or repeated ECC errors immediately escalate to AI infrastructure engineering.
Hardware & Tech Stack
- Dell PowerEdge
- Supermicro AI Servers
- NVIDIA DGX Systems
- Cisco Switching
- VMware ESXi
- Windows Server & Linux
- TCP/IP Networking
- Datadog & SolarWinds
- Jira & Confluence
- CMMS & Ticketing
- UPS & PDU Systems
- Liquid Cooling Manifolds
Christopher Harris
Critical Environments Operator | U.S. Army Veteran
Mission-critical infrastructure operations professional with a strong foundation in data center systems, production uptime, and hardware support.
I bring electrical training, hands-on hardware infrastructure experience, and critical-facility operating discipline to data center operations.
As a former Combat Engineer (12B) in the U.S. Army National Guard, and with a background managing mission-critical AWS environments at Choice Hotels and Plexus Worldwide, I understand that downtime is unacceptable. I respond to alarms, execute Standard Operating Procedures (SOPs), and coordinate vendor support to protect production environments.
Strong operations depend on documentation quality, safety-first work practices, and disciplined escalation. I hold a Data Center Certified Associate (DCCA) credential from Schneider Electric University, alongside CompTIA A+, Microsoft Certified Professional, and AWS Solutions Architect certifications.
My goal is to support world-class data center facilities by maintaining structured runbooks, participating in preventive maintenance, and applying root-cause follow-through to ensure unparalleled reliability.
Open to Critical Environments & Data Center Operations roles.
Seeking opportunities to apply my physical infrastructure, incident response, and mission-critical hardware experience in an enterprise facility.