Principal Thermal Mechanical Engineer

Job Posting Start Date 05-05-2026 Job Posting End Date 08-28-2026 At JetCool, a Flex company, we’re at the forefront of liquid cooling innovation, delivering advanced solutions that empower our partners in AI and high-performance computing. United by a shared purpose, our teams are pushing the limits of what’s possible and tackling complex challenges. A career at JetCool offers the opportunity to make a real impact by helping build smarter, more sustainable data centers. Together, we’re not just advancing technology — we’re redefining cooling standards to create a more sustainable tomorrow. Job Summary Summary: The “Systems Engineer” will be based in ……., reporting to …… This role will be accountable for designing, defining, and implementing system requirements for complex customer systems/products and/or preparing studies and researching existing systems prior to the transition to manufacturing for new product introduction. Responsibilities: Defines system specifications, input/output processes and working parameters for hardware/software compatibility. Coordinates design of subsystems and integration of total system. Identifies, explores, and resolves program deficiencies. Provides complex software development and consultation to prospective users. Tracks customer/project issues and drives resolution. Serves as main Project Development Engineer. Develops and mai [... source excerpt omitted ...] roduct development calls and meetings. Acknowledges customer inquiries concerning complex system software and applications. Accountable for systems level development and testing requirements involving finalizing approved Vendor Lists and design of components which are unavailable. Provides complex technical assistance for sales presentations, product demonstrations, installation, and maintenance of company products to ensure that the system is functioning according to specifications. Provides technical direction, as required, for the implementation of industry regulations and best practices as they apply to product/systems. Develops product specifications where applicable. Deve [... source excerpt omitted ...] est reports. Defines pre-production system build logistics and deployment schedules. Develops engineering release documentation. Builds mini applications, as required, based on customer requirements to demonstrate feasibility of an application, often requiring rapid prototyping. Ensures ISO process conformance. Qualifications: Typically requires bachelor's degree in engineering or related field or equivalent experience and training. Typically requires 10 years of industry experience. Demonstrates advanced operations, technical and people and/or process skills as well as customer (external and internal) relationship skills. Demonstrates detailed expertise in very complex