Sr. Principal Mechanical Integration Engineer – Data Center Liquid Cooling (REMOTE)

Jabil • Austin, TX

21h • Remote

About The Position

Jabil is seeking a Senior Principal Mechanical Integration Engineer to lead mechanical systems integration for data center infrastructure, with a focus on liquid cooling. The role requires a strong understanding of thermal-component manufacturing and thermal design and analysis. Responsibilities span developing specifications, selecting and placing components, choosing fastening methods, transitioning designs into manufacturing, and leading test-process implementation and equipment selection to support operational excellence and reliability.

The engineer will serve as a subject matter expert in single-phase and two-phase liquid cooling for hyperscale data centers, including primary, in-rack, enclosed, and facility-based solutions. The position works across rack, site, equipment, and system levels, integrating liquid cooling infrastructure with equipment such as chillers, heat exchangers, and air handler units. The engineer will develop and review mechanical designs and technical packages, assess performance and applicable code requirements, validate thermal and mechanical performance, and support manufacturing, testing, and deployment.

The role also supports modular and prefabricated data center solutions. Designs should use standardized, repeatable mechanical packages that can be built and validated in a factory before shipment, while accounting for skid-mounted deployment, transport and vibration loads, shipping-envelope constraints, and inter-module connection interfaces. The position is remote or based in Austin, Texas, and requires travel of approximately 20%–30% (described elsewhere as up to 30%, rare).

Requirements

• Bachelor’s degree in Mechanical Engineering, Systems Engineering, or a related field, or a suitable combination of education, experience, and/or training.
• At least 8 years of experience in mechanical system integration.
• Proven record of successful system designs and implementations in a relevant industry.
• Strong understanding of mechanical systems, integration strategy, and system coordination.
• Strong background in liquid-cooling technology used in data center design and buildout.
• In-depth knowledge of high-density liquid-cooling products used in global data center applications.
• In-depth knowledge of rack manifold manufacturing, design, and function, including machining and welding, surface finishing, material and surface treatments, post-production cleaning, flow optimization, thermal expansion, connection interfaces, high-point vents, and low-point drains.
• Ability to evaluate thermal data and conduct testing and modeling to verify thermo-mechanical requirements.
• Knowledge of fabrication practices and installation of copper, stainless steel, and aluminum piping for large-scale cooling systems.
• Ability to conduct stress and flow analysis of piping systems.
• Excellent problem-solving skills and attention to detail.
• Excellent interpersonal, communication, and teamwork abilities; able to work with global teams and independently with minimal oversight.
• Ability to read, analyze, and interpret business publications, professional journals, technical procedures, and government regulations.
• Ability to write reports, business correspondence, and procedural guides, and to present information and respond to management, clients, and public queries.
• Ability to influence others and share best practices.
• Ability to assess projects, articulate risks, and develop project milestones.
• Familiarity with stage-gate processes in project lifecycle management.
• Ability to mentor junior engineers.
• Ability to travel 20%–30% as required.

Nice To Haves

• Master’s degree in Mechanical Engineering, Systems Engineering, or a related engineering discipline.
• Active Professional Engineer (PE) license.
• Familiarity with industry standards and regulations related to data center infrastructure.
• Hands-on experience designing liquid-cooling systems for modular or prefabricated data center deployments, including factory acceptance testing (FAT) and site integration.
• Familiarity with modular data center product architectures and the design constraints associated with factory build, transport, and field commissioning.

Responsibilities

• Serve as a subject matter expert on single-phase and two-phase liquid cooling applications for hyperscale data centers, including primary and in-rack cooling solutions.
• Apply expertise in enclosed and facility-based cooling systems and current Cooling Distribution Unit (CDU) technologies.
• Define operational expectations for liquid-cooling racks, manifolds, and other infrastructure, including pressure ratings, temperature ranges, flow uniformity, and durability.
• Apply leak mitigation, hydrostatic pressure validation, flow-resistance analysis, and corrosion-assessment testing practices in line with applicable international standards such as ASME and ISO.
• Review CAD and technical data packages to validate mechanical design requirements and component functions within system environments.
• Lead multidisciplinary reviews to ensure plumbing, hydronic systems, product specifications, components, performance, and applicable code requirements are addressed.
• Evaluate thermal data from engineering and manufacturing tests to confirm conformance to thermo-mechanical requirements, testing, and models.
• Apply knowledge of copper, stainless steel, and aluminum piping fabrication and installation for large-scale cooling systems.
• Conduct or oversee stress and flow analysis to ensure piping systems withstand operating conditions.
• Collaborate with project managers on design quotations and provide technical input to identify and mitigate project risks that could affect plans and schedules.
• Select pipes, fittings, and valves based on fluid type, temperature, pressure, and corrosion resistance for chillers, HVAC systems, and liquid-cooling loops.
• Collaborate with cross-functional teams to design and ensure liquid-cooling compatibility and integration at rack, site, equipment, and system levels, including chillers, heat exchangers, and air handler units.
• Prepare technical specifications for piping components and systems, including testing, installation, and maintenance procedures.
• Use CAD tools, CAE tools, and engineering equipment to perform engineering tasks.
• Evaluate and optimize manufacturing assembly processes by designing, modifying, and testing methods and equipment; consulting equipment vendors; and gathering input from production teams.
• Create detailed mechanical designs for components, subassemblies, and system integration.
• Create bills of materials for release to manufacturing.
• Perform testing, debugging, and validation of mechanical systems and support manufacturing processes.
• Manage relationships with mechanical component vendors and contract manufacturers.
• Keep current with technologies and methods to support competitive, cost-effective designs.
• Work with the manager to propose R&D project ideas that enhance competency areas.
• Consult management and production staff to assess engineering feasibility and cost-effectiveness.
• Apply modular data center design principles to create standardized, repeatable mechanical packages that can be factory-built, tested, and validated before shipment.
• Design cooling systems for prefabricated and skid-mounted deployment, accounting for transport and vibration loads, shipping-envelope constraints, and inter-module connection interfaces.
• Assess projects, articulate risks, and develop project milestones; work with stage-gate processes in project lifecycle management.
• Mentor junior engineers.
• Travel as required, approximately 20%–30%.

Benefits

• Short-term performance-based incentive.
• Medical insurance.
• Dental insurance.
• Vision insurance.
• Paid time off accruing at 3.07 hours during the first year of employment.
• Four weeks of paid parental leave.
• In 2027, 11 company-paid holidays: 9 fixed and 2 optional floating holidays, subject to yearly change.
• 401(k) retirement plan.
• Employee stock purchase plan.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior