[Remote] Principal Data Center Mechanical Engineer
Note: The job is a remote job and is open to candidates in USA. Flux Resources is seeking a Principal Mechanical Operations Engineer to serve as the senior technical authority for mechanical and cooling infrastructure across a rapidly expanding portfolio of hyperscale AI data centers. This role will provide operational leadership for critical cooling systems and ensure successful transition of facilities from commissioning into steady-state operations.
Responsibilities
- Serve as the senior technical authority for operational mechanical and cooling infrastructure across the data center fleet
- Lead site assessments, operational audits, and readiness evaluations for existing and new facilities
- Assess mechanical system performance, reliability, maintainability, and operational risk
- Drive technical readiness programs and support operational teams prior to site activation
- Review engineering designs, equipment specifications, and construction deliverables from an operational perspective
- Collaborate with design, engineering, and manufacturing teams to incorporate operational lessons learned into future deployments
- Provide subject matter expertise for: Chilled water systems, Chillers, Cooling towers, CRAH and CRAC units, Pumps and hydronic systems, Coolant Distribution Units (CDUs), Direct liquid cooling systems
- Lead operational readiness reviews and approve commissioning-to-operations handovers
- Author and approve high-risk: Methods of Procedure (MOPs), Emergency Operating Procedures (EOPs), Abnormal Operating Procedures (AOPs)
- Lead root cause analysis investigations for cooling system failures, outages, and operational incidents
- Develop and maintain mechanical operating standards, maintenance strategies, and best practices
- Mentor site teams and improve technical readiness across the organization
- Support continuous improvement initiatives focused on cooling efficiency, reliability, and operational excellence
Skills
- 10+ years of experience supporting mission-critical mechanical systems in data centers, industrial facilities, healthcare, semiconductor, or similar critical environments
- Deep expertise in cooling infrastructure and thermal management systems
- Extensive experience with: Chilled water systems, Chillers, Cooling towers, CRAH and CRAC equipment, Pumps and hydronic distribution systems, Coolant Distribution Units (CDUs), Direct liquid cooling technologies
- Proven experience authoring and executing high-risk mechanical operating procedures
- Strong background leading root cause investigations for cooling-related incidents and operational events
- Experience evaluating site operational readiness and identifying opportunities for improvement
- Ability to develop technical capabilities and readiness programs for operations teams
- Strong understanding of reliability engineering, preventive maintenance, and operational risk management
- Excellent communication, leadership, and stakeholder management skills
- Ability to influence design decisions through operational expertise
- Experience supporting hyperscale or large colocation data center environments
- Experience operating facilities at hundreds of megawatts of capacity
- Expertise in direct liquid cooling systems and CDU operations
- Familiarity with ASHRAE TC 9.9 guidelines and best practices
- Experience optimizing chilled water plant performance and efficiency
- Knowledge of commissioning and operational turnover processes for mission-critical facilities
- Uptime Institute certifications or equivalent mission-critical training
- Experience supporting modular or prefabricated infrastructure deployments
Benefits
- Medical Coverage: Two United Healthcare plans (PPO and HDHP with HSA), with employer contributions toward premiums; coverage begins the 1st of the month after 60 days of employment
- Dental & Vision: United Healthcare dental with 100% preventive care coverage and vision benefits for exams, frames, lenses, or contacts
- Wellbeing Support: Employee Assistance Program (EAP) offering confidential counseling plus additional wellness and care navigation resources
- Retirement & Savings: 401(k) eligible after 30 days with automatic 6% enrollment (opt-out available), 1% annual increases up to 10%, plus HSA with up to $480 employer contribution
- Voluntary Benefits: Employee-paid accident insurance and critical illness coverage for major health events
Company Overview