Senior Reliability Engineer - Mechanical (Nashville, TN on-site)

Key Responsibilities

• Lead reliability initiatives for critical mechanical systems including chilled water infrastructure, CRAH/CRAC systems, cooling towers, pumps, heat exchangers, and associated controls. 

• Review and influence commissioning, startup, and turnover quality to ensure mechanical systems are delivered in a supportable and operationally sound condition. 

• Design and improve maintenance strategies that reduce downtime, improve operability, and optimize lifecycle cost. 

• Lead root cause analysis and corrective action development for major or recurring mechanical failures. 

• Analyze maintenance data, operating trends, and failure patterns to identify systemic issues and prioritize improvement actions. 

• Develop risk mitigation plans for cooling-system vulnerabilities, latent failure points, obsolescence, and supportability concerns. 

• Provide senior technical support to Site Operations during critical mechanical events and abnormal operating conditions. 

• Evaluate construction submittals, design changes, and modified installations from a reliability and maintainability perspective. 

• Support RAM analysis, lifecycle analysis, spare parts strategy, and site response planning for cooling systems. 

• Mentor less experienced reliability engineers and guide technical problem solving across the mechanical specialty. 

Ideal Candidate Profile

• 6–10 years of experience in critical cooling, HVAC, mechanical reliability, commissioning, or uptime-critical infrastructure environments. 

• Deep familiarity with cooling-system arrangements, component failures, automation interfaces, and larger system effects. 

• Experience leading RCAs, maintenance optimization, and technical support in live mechanical plant environments. 

• Bachelor’s degree in Mechanical Engineering or related field preferred; equivalent experience also valued. 

Skills and Competencies

• Strong systems thinking and technical judgment for mechanical infrastructure. 

• Strong analytical capability using maintenance history, performance data, and failure trends. 

• Ability to influence operational and design decisions without formal authority. 

• Strong communication and mentoring capability. 

• Ability to translate field issues into durable reliability improvements. 

Preferred Skills / Certifications

• Experience with large-scale cooling plants, mission-critical HVAC, and integrated facility controls. 

• Familiarity with BMS analytics, asset health analysis, and lifecycle planning. 

• ASHRAE credentials, HVAC certifications, or equivalent advanced technical training are a plus. 

• CMRP, CRE, or other reliability certification is a plus. 

Physical Demands / Work Environment

This role supports mission-critical sites and may require travel, site walks, field observations, and operational support in industrial environments. You must be able to work safely in active facilities, with or without reasonable accommodation. Source roles also note travel up to 25% and occasional lifting up to 25 pounds. 

Why Oracle Cloud Infrastructure?

Global impact at scale: Contribute directly to how mission-critical OCI data centers operate across regions and continents, influencing infrastructure reliability, security, sustainability, and long-term capacity growth.

Technically rigorous environment: Work alongside experienced engineers, automation specialists, and compliance teams in a rapidly scaling hyperscale cloud infrastructure, where disciplined execution and technical depth matter.

Culture built on operational excellence: Join an organization that values safety, process rigor, clear accountability, and continuous improvement as foundational to protecting uptime and customer trust.

Long-term career development: Benefit from internal mobility, role-based technical training, and development opportunities designed for professionals building long-term careers in cloud infrastructure and facilities operations.

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