Engineering Jobs in Weir, TX

**This position supports hybrid work schedule depending on organization needs.**

How will you make an impact?

We are looking for a  Principal Thermal Rack Engineer within the Intelligent Infrastructure Segment to drive advanced cooling solutions for high-performance computing systems. This role involves incorporating thermal components such as direct liquid cooling (DLC) systems, coolant distribution units (CDUs), and manifolds into network and server racks (EIA 19” and ORv3). You will leverage CFD tools to perform rack and system-level thermal and fluid analysis, ensuring optimal flow distribution, pressure drop, and temperature performance. Additionally, you will create 3D CAD designs for seamless hardware integration, lead validation testing, and resolve thermal or flow issues through root cause analysis and corrective actions. Collaboration with cross-functional teams, customers, and global vendors is essential to align thermal architectures with overall system design and international standards.

What will you do?

• Lead the end-to-end integration and testing of rack thermal solutions, including liquid cooling systems in varying form factors and product lines.
• Use CFD tools (FloTherm or Macroflow) to perform switch, rack, and system-level thermal/fluid analysis (flow distribution, pressure drop, and temperature profiling).
• Design and optimize thermal components using 3D CAD (Creo or SolidWorks) to support seamless hardware integration and testing.
• Participate in customer engagements and site visits to understand and document deployment constraints and gather feedback for design improvements.
• Partner with factory teams to ensure racks are built with proper airflow, hose routing, and thermal safeguards, while establishing best practices that improve build consistency across deployments.
• Collaborate with Architects/Compliance/Reliability and global vendors to align thermal architectures with total system design and international data center/thermal/mechanical standards (e.g., UL, OCP, ASHRAE, ISTA, ASTM, NEBS).
• Conduct thermal, mechanical, and reliability testing, analyzing airflow, coolant flow rates, pressure drops, and structural integrity to ensure compliance with the end-users’ specifications.
• Develop and maintain design documentation including BOMs, wetted materials compliance, test plans, and engineering change orders (ECOs).
• Manage relationships with mechanical/thermal component vendors to build out a robust partner ecosystem consisting of racks, CDUs, hoses, manifolds, QDs, and cold plates.
• Ensure mechanical designs support airflow management, thermal containment, and integration with cooling systems (e.g., in-row cooling, in-rack cooling, rear door heat exchangers).
• Conduct root cause analysis and corrective actions for mechanical and thermal failures or field issues.
• May perform other duties and responsibilities as assigned.

How will you get here?

Education:

• Bachelor’s Degree in Mechanical/Thermal Engineering, Systems Engineering, or related field is required

Experience:

• Minimum of 7+years of experience in thermal/mechanical systems integration
• 3+ years of specific experience in rack-scale thermal design and analysis
• Strong understanding of mechanical systems, integration strategies, and large-scale program management
• Familiarity with server design, heatsinks, cold plates, hoses, and blind-mate connectors
• Proficiency in CFD simulation (e.g. ANSYS, 6Sigma, etc.) and 3D modeling software (e.g. SolidWorks, Creo)
• Hands-on experience with thermal chambers, fans, and coolant
• Excellent English communication skills (verbal and written) with strong technical leadership capabilities

Knowledge, Skills, Abilities:

• Excellent interpersonal and communication skills
• Creative, self-motivated, accountable, and team-oriented
• Able to work independently with minimal oversight
• Capable of assessing projects, articulating risks, and developing project milestones
• Skilled in writing reports, business correspondence, and procedural guides
• Effective at presenting information and responding to management and customers
• Capable of influencing others and sharing best practices
• Familiar with stage-gate processes in project lifecycle management (PLCM)
• Ability to travel both domestically and internationally up to 30%

Preferred Qualifications:

• Master’s Degree in Mechanical Engineering, Systems Engineering or related field is preferred
• Experience designing mechanical systems for data centers, telecom, or industrial power/cooling products.
• Active Professional Engineer (PE) license preferred.
• Hands-on experience with prototype fabrication and testing; experience working with global suppliers and contract manufacturers a plus.

About Jabil’s Intelligent Infrastructure Group:

• Headquartered in Austin, TX, with a flagship facility located near The Domain and the Austin FC stadium
• Growing rapidly, with a team of more than 100 employees in Austin (500+ worldwide) and significant expansion planned through 2026
• Generated over $12 billion in FY25 revenue, driven largely by partnerships with major hyperscale customers
• Delivers cutting‑edge engineering, supply chain, and manufacturing solutions that power the world's AI infrastructure and global data center ecosystems

As part of the total rewards package, this position is eligible for:

• Annual bonus opportunity
• Medical, dental, and vision insurance plans
• Paid time off (PTO)
• 4 weeks of paid parental leave
• 11 company-paid holidays (9 fixed holidays and 2 optional floating holidays), subject to change yearly
• 401(k) retirement plan
• Employee stock purchase plan

Job Title : Nuclear Engineer (Naval Reactors Engineer) Category / Component : Officer • Active Overview Design, regulate, and oversee the Navy's nuclear propulsion program, including reactor design, fleet operations, and eventual defueling and decommissioning of nuclear powered ships and submarines from Naval Reactors Headquarters and associated Department of Energy laboratories and shipyards.

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves, instrumentation and control for reactor and propulsion plants, testing and quality control, radiation shielding, and chemistry and radiological controls; review designs and analyses from laboratories, shipyards, and industry partners; coordinate with fleet units to ensure safe and reliable nuclear plant operation.

What to Expect Assume significant technical responsibility early in your career as part of a lean headquarters staff; work primarily in an analytical and oversight role rather than operating plants at sea; balance long term engineering projects with time sensitive fleet and shipyard issues; frequent coordination with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication.

Work Environment Work mainly at Naval Reactors Headquarters in the Washington, District of Columbia area with regular engagement with Department of Energy laboratories, nuclear training sites, shipyards, and nuclear powered ships and submarines; office based work that includes document reviews, technical meetings, inspections, and site visits rather than day to day shipboard watchstanding.

Pathways, Training & Advancement Officer commissioning through programs such as Officer Candidate School or the Nuclear Propulsion Officer Candidate program followed by a structured technical qualification program at Naval Reactors; rotational exposure to laboratories, prototypes, shipyards, and fleet support issues; progressive responsibility leading projects and becoming a subject matter expert, with opportunities for professional military education and advanced graduate study in technical fields.

Entry through the Nuclear Propulsion Officer Candidate program for qualified college students and recent graduates, or selection via Officer Candidate School for those who already hold qualifying degrees; all applicants must meet Nuclear Propulsion Program academic and technical screening standards in addition to general officer commissioning requirements.

Qualifications All Navy jobs require meeting general enlistment or commissioning standards, which typically include: Eligibility to serve in the United States Navy, which may involve United States citizenship or other legal residency and work status, depending on the program and current law and policy A high school diploma or equivalent for enlisted positions, and a bachelor's or qualifying professional degree for officer positions Meeting age limits that vary by program and are set in law and Navy policy.

Some communities have more restrictive age ranges Meeting medical, vision, and dental standards, including body composition and physical fitness requirements, with some jobs requiring more demanding standards Meeting character and conduct standards, including background screening Achieving required test scores for your program, such as the Armed Services Vocational Aptitude Battery for enlisted roles or officer qualification tests for officer programs Eligibility for a security clearance when required for your rating or designator Additional qualifications can include specific skills, education, licensure, or experience that are unique to a job or community and will be reviewed with you by a recruiter.

Additional qualifications for this job may include: Completion of a rigorous technical degree in engineering, physics, mathematics, or a closely related field that includes strong backgrounds in calculus and physics; outstanding academic record, particularly in technical coursework; United States citizenship and eligibility for a high level security clearance; strong technical aptitude and comfort with detailed analytical work.

Education Education benefits are available through standard Navy programs such as Tuition Assistance, the Post-9/11 GI Bill, ACE-recommended college credit for Navy training, Navy COOL-funded certifications, USMAP apprenticeships, and other Navy College Program opportunities.

Specific options depend on the Sailor's status, training, and current Navy policy.

Pay, Benefits & Service Pay, benefits, and service commitments follow standard Navy Active and/or Reserve policies for this type of role, including basic pay, allowances when eligible, health coverage, and retirement options.

Exact entitlements, special pays, and service obligations depend on program, component, years of service, and current law and Navy guidance.

Incentives Incentives such as bonuses, special pays, and loan repayment may be available at times for specific ratings or communities, but they change frequently and cannot be guaranteed.

Applicants must confirm current incentives and eligibility with an official Navy recruiter or authoritative Navy source.

Notes and Disclaimers This description is a general overview of typical duties, training, and opportunities in this community.

It does not replace official Navy instructions, policies, or contracts and does not guarantee specific assignments, training, incentives, or outcomes.

Actual opportunities depend on Navy needs, individual performance, screening results, and current law and policy.