Aaron Macias Email and Phone Number

Equipment and Systems Maintenance:• Coordinate MSOWs, schedules, and contractor activities.• Perform inspections, testing, and commissioning of facility equipment.• Develop MOPs, SOPs, and DMOPs for complex equipment and systems.• Perform planned, predictive, and corrective maintenance on complex equipment.• Troubleshoot and resolve equipment issues, providing guidance to less experienced colleagues.• Oversee vendors and contractors work to ensure safety and quality standards.• Document maintenance activities and escalating issues as needed.Equipment and Systems Operations:• Lead incident response and corrective actions for abnormal conditions.• Develop or follow emergency and standard operating procedures for incident management.• Supervise critical facility equipment for abnormal conditions and ensure proper escalation.• Monitor and analyze equipment performance using telemetry and control systems.• Perform inspections and corrective actions on equipment to meet SLA requirements.• Use CMMS for tracking equipment assets, work orders, and team performance.Critical Environment Culture:• Ensure safety and security requirements (e.g., JHAs, toolbox talks) are followed according to AHJ regulations and Microsoft standards.• Identify unsafe working conditions and take appropriate action (e.g., stop tasks, stand down vendors).• Promote a safe working environment and empower less experienced team members.• Participate in required meetings, training, and handoffs.• Proactively maintain safe working conditions for all team members.

• Performs advanced maintenance and repairs across multiple disciplines and equipment types independently. Adheres to Task Hazard Analysis, Method Statement of Work, and permit requirements, and communicates or escalates activities as needed. • Serves as a subject matter expert, independently performtroubleshooting for various equipment, systems, and components. • Document issues according to established procedures and ensuresettings align with design parameters. • Determines adequacy of troubleshooting efforts and escalates to suppliers, engineers, or experienced colleagues as necessary. • Provides guidance to less experienced colleagues and oversees their troubleshooting activities, investigating root causes.• Inspects and supervises critical facility equipment, including HVAC and electrical systems, for unsafe or abnormal conditions to analyze trends. • Conducts inspections and validations of equipment performance and monitors equipment from facility operations centers. • Utilizes telemetry and control systems to analyze events and identify alarms, using expertise to recognize equipment behavior trends and address potential issues. • Advises less experienced colleagues on monitoring issues and ensures all repairs, replacements, and maintenance meet Microsoft Service Level Agreement requirements.

• Oversee the day-to-day operations and timely execution of maintenance and repairs for mechanical and electrical equipment in the data center.• Coordinated Compliance Tasks – Support FedRAMP, Tier II Reporting, and other assessments.• Assisting Facilities Manager with CAPEX and OPEX budgets.• Scheduling all 3P and In-House Preventative Maintenances (MPM, QPM, SAPM, APM, and Multi-Year maintenances).• Collaborating with multiple teams daily on all Electrical tie-ins for future power for construction, future buildings, and all other electrical (Medium-Voltage, and High-Voltage).• Managed all Small-to-Large projects from conception to completion.• Creation and approval process of all data center MOPs, EOPs, SOPs, Etc.• Provides appropriate level of on-site supervision to ensure project performance criteria are being met.• Ensure that the CFWA (Critical Facility Work Authorization) is a wellunderstood process among the building staff, engineers, tenants and contractors who perform work on the building's critical infrastructure.• Establishes and monitors programs to ensure compliance with applicable codes, requisitions, government agency and company directives as related to building operations.

• Operate and maintain critical and non-critical data center infrastructure, equipment, and systems.• Monitor power, cooling capacity, and environmental conditions within the data halls.• Assist with the development, revision, and execution of approximately 200 operating procedures and preventive maintenance inspections, and perform quality control reviews to ensure accuracy, clarity, and continual improvement.• Resolve all electrical and mechanical issues within the Data Center quickly while minimizing risk and properly communicate issues to the appropriate chain of command.

• Provide 24 x 7 on-call emergency response and support as necessary to maintain the highest level of integrity and availability of building systems and infrastructure efficiency.• Monitor progress and inspect completed maintenance and repairs to ensure the required standards are achieved.• Monitoring and maintaining all building and mission critical facilities equipment.• Perform tests and rounds and analyze the data to ensure proper functioning and operating parameters of equipment.• Perform preventive maintenance on all building equipment to ensure efficient operation of all building systems.