Thermal Systems Engineer II

jci; New Freedom (York County); On-site; USD 110,000 - 140,000; Full time

Job summary

Johnson Controls is seeking a Senior Thermal Data Center Systems Engineer to support the thermal subsystem or component designs within the data center cooling product portfolio. This onsite role at our Advanced Technology and Innovation Center in New Freedom, PA requires commuting distance or relocation.

You will lead small technical efforts, define specs, prototype development, and validate thermal solutions across the complete thermal chain from server to ambient.

Qualifications

• Bachelor of Science in Mechanical Engineering is required.
• 2+ years of thermal/HVAC design experience.
• Proficiency with Microsoft 365/Excel including macros/VBA for data analysis.
• CAD proficiency (SolidWorks, Creo, or equivalent).
• Engineering calculations and documentation tools (MathCAD, EES, or equivalent).
• Heat transfer analysis (conduction, convection, two-phase).
• Thermodynamic cycle analysis and fluid mechanics knowledge.
• Thermal system component sizing and selection.
• Product development lifecycle experience.
• Prototype fabrication and hands-on testing.
• Cross-functional project execution.

Responsibilities

• Define specifications for thermal features or products; develop test protocols and acceptance criteria
• Lead prototype development and validation activities; develop and execute comprehensive test plans
• Integrate multiple components into subsystem solutions understanding the complete thermal chain
• Participate in process improvement for testing and analysis methods
• Guide and mentor less experienced engineers; represent Engineering in cross-functional activities

Skills

Thermal/HVAC design

Data analysis (Excel VBA)

Prototype fabrication

Cross-functional collaboration

Thermal system testing

Education

Bachelor of Science in Mechanical Engineering

Tools

SolidWorks/Creo

MathCAD/EES

Python scripting (basic)

CFD (ANSYS/OpenFOAM)

Job description

What you will do

Johnson Controls is seeking a Senior Thermal Data Center Systems Engineer to support the thermal subsystem or component designs within the data center cooling product portfolio. In this role, you will operate with minimal supervision, determining approaches to thermal solutions and leading small technical efforts. You will demonstrate proficiency across multiple thermal domains and understands the complete thermal chain from server to ambient. This position is based onsite, minimum 3 days per week, at our Advanced Technology and Innovation Center located in New Freedom, PA. Candidates must be commuting distance to the facility or able to relocate.

How you will do it

• Define specifications for thermal features or products; develop test protocols and acceptance criteria
• Lead prototype development and validation activities; develop and execute comprehensive test plans
• Integrate multiple components into subsystem solutions understanding the complete thermal chain
• Participate in process improvement for testing and analysis methods
• Guide and mentor less experienced engineers; represent Engineering in cross-functional activities

What you will need

Required

• Bachelor of Science in Mechanical Engineering or related field required
• 2+ years of thermal/HVAC design experience
• Microsoft 365/Excel (including basic macros/VBA for data analysis and reporting)
• CAD proficiency (SolidWorks, Creo, or equivalent)
• Engineering calculations and documentation (MathCAD, EES, or equivalent)
• Heat transfer analysis (conduction, convection, two-phase)
• Thermodynamic cycle analysis
• Fluid mechanics and hydraulic system design
• Thermal system component sizing and selection
• Product development lifecycle experience
• Prototype fabrication and hands-on testing
• Cross-functional project execution

Preferred

• Python scripting and environment management (package installation, virtual environments, basic automation)
• CFD (ANSYS Fluent, Star-CCM+, OpenFOAM, or equivalent)
• FEA (ANSYS Mechanical, Abaqus, or equivalent)
• MATLAB/Simulink for system modeling and controls
• Controls fundamentals (feedback loops, PID tuning, system response)
• Electrical systems basics (motor sizing, VFDs, power distribution)
• Refrigeration system design and refrigerant properties
• Data center cooling architectures (direct liquid cooling, rear-door heat exchangers, CDUs)

Johnson Controls International plc. is an equal employment opportunity and affirmative action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, genetic information, sexual orientation, gender identity, status as a qualified individual with a disability or any other characteristic protected by law. To view more information about your equal opportunity and non-discrimination rights as a candidate, visit EEO is the Law. If you are an individual with a disability and you require an accommodation during the application process, please visit here.