Mechanical Engineer

Pentangle Tech Services | P5 Group; California; On-site; USD 90,000 - 130,000; Full time

Job summary

Pentangle Tech Services | P5 Group is seeking a Mechanical Design Engineer to join Core Technology. You will contribute to the design and validation of high-temperature heating elements, storage media, and insulation layers at the heat battery core.

The role emphasizes thermomechanical design, integrated hardware with refractories, and robust design interfaces across subsystems. You’ll perform CFD, 1D heat/mass-flow analyses, FEA, and contribute to FMEA.

Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering or related field.
• 2+ years of mechanical engineering experience with complex systems.
• Experience taking designs from concept through production qualification.
• Experience with high-temperature materials and interfaces.
• Proficiency in FEA and 1D thermal analysis.

Responsibilities

• Support mechanical design and validation of components and assemblies for high-temp systems.
• Perform CFD and 1D heat- and mass-flow analyses to identify design-driving factors.
• Conduct FEA to evaluate mechanical and thermomechanical performance.
• Develop test methodologies to validate performance and reduce risk.
• Lead design reviews and collaborate with manufacturing and supply chain to improve manufacturability.
• Prepare technical documentation for suppliers and internal stakeholders.
• Support production ramp-up and troubleshoot pilot line trials.

Skills

Mechanical design

Thermomechanical analysis

FEA

Technical communication

Cross-functional collaboration

Education

Bachelor’s or Master’s degree in Mechanical Engineering

Tools

SolidWorks

PLM software

Job description

Mechanical Design Engineer – Core Technology

We are looking for a highly skilled Mechanical Design Engineer to join our team. This role

supports the design and development of high-temperature heating elements, storage

media, and insulation layers at the very core of the Heat Battery. The ideal candidate

combines strong mechanical design and thermomechanical experience with hands-on

experience with integrated hardware involving refractories and other high temperature

materials.

What You’ll Do (responsibilities include, but are not limited to):

• Support the mechanical design and validation of components, assemblies, and


• systems subjected to repeated thermal cycling and operating temperatures up to


• Develop high-temperature and high-power systems and assemblies using metals,


• ceramics, refractories, and other appropriate materials.


• Design and validate mechanical interfaces, compliant mechanical features, and


• sealing solutions that accommodate differential thermal expansion while


• maintaining structural integrity and environmental isolation


• Perform CFD and 1D heat- and mass-flow analyses to identify design-driving factors


• and inform system-level decisions.


• Conduct FEA to evaluate and validate mechanical and thermomechanical


• performance.


• Contribute to and lead design and process FMEA activities.


• Develop component-level test methodologies and design experiments to validate


• performance and reduce technical risk.


• Use CAD and PLM software—SolidWorks preferred—for design, documentation,


• and configuration control.


• Develop and define system functions, testable design requirements, and interfaces


• with other subsystems in a systems engineering context


• Prepare technical documentation for external suppliers and internal stakeholders.


• Collaborate with manufacturing and supply chain teams to improve designs for


• manufacturability and assembly, establish process controls, perform First Article


• Inspections, identify and resolve root causes of failures.


• Support rapid prototyping across ceramics, refractories, metals, and plastics.


• Lead and participate in design reviews, project planning, schedule estimation, and


• progress reporting to cross-functional teams.


• Support supplier, manufacturing, and construction activities through site visits up to


• 20% of the time


• Support production ramp-up at local facility as-needed, including troubleshooting


• and resolving pilot line trials, debugging nonconformances, and dispositioning MRB


• questions

What You’ll Bring:

• Bachelor’s or Master’s degree in Mechanical Engineering or a related discipline.


• 2+ years of relevant mechanical engineering experience involving complex


• mechanical systems


• Experience taking mechanical designs from concept through qualification and


• production


• Demonstrated design experience with high-temperature materials, thermoselectro-mechanical systems, and mechanical interfaces for high-voltage systems


• Proficiency in FEA and 1D thermal analysis


• Experience applying GD&T principles and connecting critical features and tolerance


• stack-ups to functional performance


• A commitment to schedule execution, high-quality documentation, and engineering


• rigor


• A track record of applying sound engineering judgment to evaluate requirements,


• challenge assumptions, and recommend scope, cost, or technical tradeoffs to meet


• performance and schedule objectives


• Excellent technical communication and cross-functional collaboration skills.


• Able to lift up to 50lbs

Bonus Points:

• Experience performing CFD analysis


• Knowledge of relevant electrical and mechanical design standards and


• considerations including creepage and clearance and arc-flash protection


• Experience supporting field installation or commissioning of complex industrial or