[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.ResponsibilitiesServe as the senior technical authority for operational mechanical and cooling infrastructure across the data center fleetLead site assessments, operational audits, and readiness evaluations for existing and new facilitiesAssess mechanical system performance, reliability, maintainability, and operational riskDrive technical readiness programs and support operational teams prior to site activationReview engineering designs, equipment specifications, and construction deliverables from an operational perspectiveCollaborate with design, engineering, and manufacturing teams to incorporate operational lessons learned into future deploymentsProvide 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 systemsLead operational readiness reviews and approve commissioning-to-operations handoversAuthor 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 incidentsDevelop and maintain mechanical operating standards, maintenance strategies, and best practicesMentor site teams and improve technical readiness across the organizationSupport continuous improvement initiatives focused on cooling efficiency, reliability, and operational excellenceSkills10+ years of experience supporting mission-critical mechanical systems in data centers, industrial facilities, healthcare, semiconductor, or similar critical environmentsDeep expertise in cooling infrastructure and thermal management systemsExtensive experience with: Chilled water systems, Chillers, Cooling towers, CRAH and CRAC equipment, Pumps and hydronic distribution systems, Coolant Distribution Units (CDUs), Direct liquid cooling technologiesProven experience authoring and executing high-risk mechanical operating proceduresStrong background leading root cause investigations for cooling-related incidents and operational eventsExperience evaluating site operational readiness and identifying opportunities for improvementAbility to develop technical capabilities and readiness programs for operations teamsStrong understanding of reliability engineering, preventive maintenance, and operational risk managementExcellent communication, leadership, and stakeholder management skillsAbility to influence design decisions through operational expertiseExperience supporting hyperscale or large colocation data center environmentsExperience operating facilities at hundreds of megawatts of capacityExpertise in direct liquid cooling systems and CDU operationsFamiliarity with ASHRAE TC 9.9 guidelines and best practicesExperience optimizing chilled water plant performance and efficiencyKnowledge of commissioning and operational turnover processes for mission-critical facilitiesUptime Institute certifications or equivalent mission-critical trainingExperience supporting modular or prefabricated infrastructure deploymentsBenefitsMedical 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 employmentDental & Vision: United Healthcare dental with 100% preventive care coverage and vision benefits for exams, frames, lenses, or contactsWellbeing Support: Employee Assistance Program (EAP) offering confidential counseling plus additional wellness and care navigation resourcesRetirement & 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 contributionVoluntary Benefits: Employee-paid accident insurance and critical illness coverage for major health eventsCompany OverviewFlux Resources provides careers and professionals in the fields of architecture, and business professionals industries. It was founded in 2015, and is headquartered in Lake Oswego, Oregon, USA, with a workforce of 201-500 employees. Its website is https://www.workwithflux.com/.