At Jabil (NYSE: JBL), we are proud to be a trusted partner for the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With 60 years of experience across industries and a vast network of over 100 sites worldwide, Jabil combines global reach with local expertise to deliver both scalable and customized solutions. Our commitment extends beyond business success as we strive to build sustainable processes that minimize environmental impact and foster vibrant and diverse communities around the globe.

About the Data Center Infrastructure (DCI) Team:

The DCI team consists of technical subject matter experts who specialize in end-to-end large scale physical infrastructure that powers and enables modern data centers. This includes power distribution systems such as transformers, substations, generators, switchgear, switch panels, busways, ATS units, EDPM, BMS systems, and control panels, as well as cooling solutions ranging from traditional evaporative and indirect cooling systems to emerging liquid cooling technologies including chillers, heat exchangers, CDUs, pumps, and secondary fluid networks. The team also addresses the mechanical structures that house these systems - hot aisle containment, steel enclosures, blanking panels, cable trays, and fiber and networking infrastructure.

The DCI team operates as a cross-industry center of excellence, partnering primarily with various hyperscaler cloud providers across the industry. Team members function as deeply technical subject matter experts who engage directly with customers and supply chain partners to assess requirements, identify challenges, and design infrastructure solutions end-to-end. The ideal contributor brings engineering-level expertise in either power or cooling disciplines, a working knowledge of the full infrastructure dependency chain, and the ability to translate that expertise into clear recommendations and collaborative problem-solving with both technical and business stakeholders.

Job Title: Sr. Principal Mechanical Design Engineer

Job Family: Mechanical Design Engineering

Organization: Data Center Infrastructure Team

Location: Remote* OR Austin, TX

*Requires up to 30% domestic and/or international travel (rare)

How will you make an impact?

The Mechanical Integration Engineer is responsible for defining factory level mechanical and thermal solutions that enable the setup, expansion, and optimization of greenfield and brownfield Jabil owned manufacturing facilities in addition to product support. This role leads early phase factory design by scoping, specifying, and integrating mechanical and cooling systems, mimicking data center infrastructure functionality where required, and translating product and process requirements into scalable factory architectures that support efficient facility setup, equipment deployment and long-term manufacturing readiness. The position also includes leading test process implementation and equipment selection to maintain the highest standards of operational excellence and reliability.

What will you do?

• Lead the design of factory level mechanical and cooling architectures, leveraging hyperscale data center design principles to define scalable, resilient infrastructure for Jabil manufacturing facilities
• Design and integrate air cooled and water cooled chiller plants, dry coolers, heat rejection systems, and associated hydronic distribution networks.
• Define cooling plant performance requirements including capacity, redundancy (N, N+1, 2N), efficiency, availability, and scalability.
• Partner with electrical, controls, and operations teams to ensure cooling systems meet availability, resilience, and operational excellence targets.
• Act as a subject matter expert for single phase and two phase liquid cooling technologies used in hyperscale data centers.
• Architect and integrate rack level, row level, and facility based liquid cooling systems, including CDUs, manifolds, and heat exchangers.
• Define operational requirements for LC infrastructure, including pressure ratings, temperature envelopes, flow uniformity, materials compatibility, and long term durability.
• Ensure seamless thermal and mechanical integration between facility cooling plants and high density IT liquid cooling loops.
• Review and approve mechanical designs, CAD models, and technical data packages for compliance with system level requirements.
• Own component selection for piping, valves, fittings, pumps, heat exchangers, and cooling equipment based on fluid type, pressure, temperature, corrosion resistance, and lifecycle cost.
• Develop and release Bills of Materials (BOMs) and manufacturing documentation for production and deployment.
• Ensure designs comply with applicable codes, standards, and best practices (ASME, ISO, applicable building and pressure vessel codes).
• Perform or oversee thermal, hydraulic, and mechanical analyses, including flow modeling, pressure drop, and stress evaluation.
• Define and lead system level and component level testing, including leak testing, hydrostatic pressure testing, and performance validation.
• Evaluate test and field data to confirm conformance to thermo mechanical requirements and drive design improvements.
• Lead design for manufacturability (DFM) and design for assembly (DFA) efforts for liquid cooling hardware and assemblies.
• Optimize manufacturing and installation processes for large scale copper, stainless steel, and aluminum piping systems.
• Manage technical relationships with cooling equipment OEMs, contract manufacturers, and fabrication partners.
• Support deployment, commissioning, and early life issue resolution for data center cooling systems
• May perform other duties and responsibilities as assigned.

How will you get here?

Education:

• Bachelor’s degree in Mechanical Engineering, Systems Engineering, or a related field is required

Experience:

• Minimum of 5+ years of experience in mechanical system integration
• Familiarity with industry standards and regulations related to Data Center Infrastructure is preferred
• Proven track record of successful system designs and implementations in a relevant industry
• Strong understanding of mechanical systems, integration strategy, and system coordination
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork abilities
• Alternatively, a suitable combination of education, experience, and/or training may be considered

Knowledge, Skills, Abilities:

• Excellent interpersonal and communication skills
• Creative, self-motivated, accountable, and team-oriented
• Able to work independently with minimal oversight
• Proficient in reading, analyzing, and interpreting general business publications, professional journals, technical procedures, and government regulations
• Skilled in writing reports, business correspondence, and procedural guides
• Effective at presenting information and responding to management, clients, and public queries
• Capable of influencing others and sharing best practices
• Comfortable working as part of a global team
• Capable of assessing projects, articulating risks, and developing project milestones
• Familiar with stage-gate processes in project lifecycle management (PLCM)
• Able to mentor junior engineers
• Ability to travel 20% to 30% as required

Preferred Qualifications:

• Master’s Degree in Mechanical Engineering, Systems Engineering or related engineering discipline.
• Active Professional Engineer (PE) license.

The pay range for this role is $164,200 - $295,600. Job-related, non-discriminatory factors used to determine the actual offered rate include qualifications and experience, geographic location, education, external market data, and consideration of internal equity. The anticipated close date of this job requisition is: June 30, 2026.As part of the total rewards package, this position is eligible for a short-term incentive based on performance. In addition, Jabil offers benefits to enhance your health, wealth, and resilient self. These include medical, dental, and vision insurance plans; paid time off accruing at a rate of 3.07 hours during your first year of employment; 4 weeks of paid parental leave; in 2026, 11 company-paid holidays (9 fixed holidays and 2 optional floating holidays), subject to change yearly; 401(k) retirement plan; and employee stock purchase plan.BE AWARE OF FRAUD: When applying for a job at Jabil you will be contacted via correspondence through our official job portal with a jabil.com e-mail address; direct phone call from a member of the Jabil team; or direct e-mail with a jabil.com e-mail address. Jabil does not request payments for interviews or at any other point during the hiring process. Jabil will not ask for your personal identifying information such as a social security number, birth certificate, financial institution, driver’s license number or passport information over the phone or via e-mail. If you believe you are a victim of identity theft, contact the Federal Bureau of Investigations internet crime hotline (www.ic3.gov), the Federal Trade Commission identity theft hotline (www.identitytheft.gov) and/or your local police department. Any scam job listings should be reported to whatever website it was posted in.

Jabil, including its subsidiaries, is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, age, disability, genetic information, veteran status, or any other characteristic protected by law.

Accessibility Accommodation

If you are a qualified individual with a disability, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Jabil.com/Careers site as a result of your disability. You can request a reasonable accommodation by sending an e-mail to Always_Accessible@Jabil.com or calling 727-803-7988 with the nature of your request and contact information. Please do not direct any other general employment related questions to this e-mail or phone number. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to.#whereyoubelong#AWorldofPossibilities