Principal Engineer (PDE)

UL Solutions•Northbrook, IL

75d•Onsite

About The Position

Serves as Regional or Global SME for multiple technologies. Serves as representative on standards committees. Publishes articles related to technical expertise. Studies and understands test standards, testing technology, and regulations for scope of responsibility. Takes on role as Subject Matter Expert (SME) for standards, industry, and/or test capability. May represent UL at industry related functions such as seminars, trade shows or standards committees. Manages or develops new standard programs and capabilities for region or globally. Has detailed understanding of test techniques, procedures, and equipment. Performs complex test procedures when necessary. Provides training to staff when necessary. Follows up on contacts from clients and communicates technical issues, Test Standard explanations, certification requirements and UL procedures and requirements. Acts to address client concerns and resolve issues for a region or global office. Drives for consistency and enhanced quality in area of expertise. Within their region, or for the wider organization, operates and maintains test equipment appropriately to measure and test customer samples. Performs maintenance on designated test equipment and laboratory area. May perform calibration of test equipment. Integrates continuous improvement concepts and techniques into all aspects of the job for a region or global office. Manages and reviews related internal documents for accuracy. Develops special test methods and test equipment for new standards, test requirements, or improved efficiency, when needed. Likely to support the business externally through travelling to meetings at client sites, attendance at industry related events and other meetings. Read and follow the Underwriters Laboratories Code of Conduct and follow all physical and digital security practices. Performs other duties as directed.

Requirements

Bachelor’s or Master’s degree in Mechanical Engineering, Thermal/Fluid Engineering, Aerospace Engineering, or Applied Physics from an accredited university program.
A minimum of 12+ years of direct, progressive engineering experience in high-density data center cooling design, advanced HVACR product development, or comprehensive thermal management engineering within high-performance computing (HPC) or hyperscale cloud ecosystems.
Demonstrated history of direct management or programmatic leadership of high-performing, cross-functional global teams of technical experts and laboratory specialists, with a clear adherence to formal corporate codes of conduct and comprehensive digital/physical security protocols.

Responsibilities

Engineer safety evaluations for coolant leaks, dielectric fluid chemistry, and A2L/A3 refrigerant flammability.
Convert thermal management trends and safety metrics into profitable commercial services.
Embed UL safety philosophies into Cold Plate, Immersion, and Heat Reuse open specifications.
Launch 'UL Verified' programs to validate cold plate dissipation and universal quick disconnect (UQD) interchangeability.
Drive technical consensus across competing vendors, hyperscalers, ASHRAE TC 9.9, and the Green Grid.
Architect programs to rate waste heat quality for predictable utility grid monetization.
Align offerings with DOE, NRCan, EU EED, and Ecodesign frameworks ahead of regulatory enforcement.
Operationalize lab suites validating cold plate thermal resistance, pressure drop, and hydraulic impedance.
Establish mechanical regimes for Open Rack V3 (ORv3) manifolds to prevent binding and bypass.
Standardize chemical and electrical compatibility tests between immersion fluids and server components.
Map unified Redfish API schemas to trigger automated isolation across CDUs and loops.
Publish white papers on regulatory minefields like PFAS restrictions and global F-Gas phasedowns.
Build global laboratory capacity through standardized internal engineering curricula.