Role Overview This position will be full-time on-site at Oracle's offices located in Nashville, TN. Relocation assistance may be available in accordance with Oracle’s relocation policies.As a Senior Reliability Engineer – Mechanical, you will lead mechanical reliability strategy and improvement efforts for mission-critical cooling systems supporting OCI data centers. This role focuses on commissioning quality, maintenance optimization, root cause rigor, lifecycle planning, and technical support for complex or high-impact mechanical issues. You will act as a senior individual contributor and trusted advisor to Site Operations, Design Engineering, Construction, Building Automation, and Reliability leadership on cooling system reliability, maintainability, and operational risk. Key ResponsibilitiesLead 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 Profile6–10 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 CompetenciesStrong 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 / CertificationsExperience 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.#LI-SB36 Disclaimer:Certain U.S. based or U.S. customer or client-facing roles may be required to comply with applicable requirements, such as immunization/occupational health mandates, and/or drug testing requirements.Range and benefit information provided in this posting are specific to the stated locations onlyUS: Hiring Range in USD from: $126,200 to $264,100 per annum. May be eligible for bonus, equity, and compensation deferral.Oracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle's differing products, industries and lines of business.Candidates are typically placed into the range based on the preceding factors as well as internal peer equity.Oracle US offers a comprehensive benefits package which includes the following:1. Medical, dental, and vision insurance, including expert medical opinion2. Short term disability and long term disability3. Life insurance and AD&D4. Supplemental life insurance (Employee/Spouse/Child)5. Health care and dependent care Flexible Spending Accounts6. Pre-tax commuter and parking benefits7. 401(k) Savings and Investment Plan with company match8. Paid time off: Flexible Vacation is provided to all eligible employees assigned to a salaried (non-overtime eligible) position. Accrued Vacation is provided to all other employees eligible for vacation benefits. For employees working at least 35 hours per week, the vacation accrual rate is 13 days annually for the first three years of employment and 18 days annually for subsequent years of employment. Vacation accrual is prorated for employees working between 20 and 34 hours per week. Employees working fewer than 20 hours per week are not eligible for vacation.9. 11 paid holidays10. Paid sick leave: 72 hours of paid sick leave upon date of hire. Refreshes each calendar year. Unused balance will carry over each year up to a maximum cap of 112 hours.11. Paid parental leave12. Adoption assistance13. Employee Stock Purchase Plan14. Financial planning and group legal15. Voluntary benefits including auto, homeowner and pet insuranceThe role will generally accept applications for at least three calendar days from the posting date or as long as the job remains posted.Career Level - IC5