Mechanical Engineering Intern — Fusion Energy R&D

Type One Energy Group, Inc.; Knoxville (TN); On-site; USD 34,000 - 41,000; Full time

Job summary

Type One Energy Group is seeking a Summer Internship in Mechanical Engineering in Knoxville, TN. As an intern you will contribute to the design and development of mechanical systems for fusion energy projects, gaining hands-on experience with Siemens NX, ANSYS, and COMSOL in a cutting-edge R&D environment.

You will work under the Engineering Resource Manager, engaging in CAD modeling, structural and thermal analyses, and documentation, while participating in prototype fabrication and testing on

Qualifications

• Pursuing a bachelor’s or master’s degree in mechanical engineering or related discipline.
• Hands-on experience with Siemens NX for modeling and drafting.
• Strong understanding of mechanical design fundamentals and GD&T.
• Familiarity with manufacturing methods such as machining, welding, or assembly.
• Coursework or project experience with finite element analysis (FEA) using ANSYS for structural analysis.
• Familiarity with COMSOL Multiphysics, or a strong desire to learn it, for thermal and heat transfer modeling.
• Solid grounding in heat transfer, solid mechanics, and materials fundamentals.
• Ability to critically evaluate simulation results, including checking for mesh convergence and boundary conditions.
• Ability to work collaboratively in a fast-paced, multidisciplinary environment.
• Strong attention to detail and solid problem-solving skills.

Responsibilities

• Create and update 3D CAD models and detailed drawings in Siemens NX.
• Support mechanical design activities including concept generation, layout, and tolerance analysis.
• Assist with mechanical assembly design, tooling design, and part integration.
• Work with CAD geometry from Siemens NX to prepare models for simulation (defeaturing, simplification, mesh-ready geometry).
• Perform structural and mechanical analyses in ANSYS (static, modal, buckling, and thermal-structural coupling) to support and validate design decisions.
• Build and run thermal analyses in COMSOL Multiphysics, including conduction, convection, and radiation heat transfer for components operating in extreme thermal environments.
• Contribute to design reviews and documentation to ensure accuracy and manufacturability.
• Correlate analysis results with hand calculations, test data, or prototype inspection results.
• Collaborate with engineers across disciplines (mechanical, electrical, systems) to support ongoing development projects.
• Participate in prototype fabrication, inspection, and testing as needed.

Skills

Mechanical design fundamentals

Attention to detail

Team collaboration

Problem-solving

Fast-paced environment

Education

Bachelor’s or Master’s in Mechanical Engineering or related

Tools

Siemens NX

ANSYS

COMSOL Multiphysics

Finite Element Analysis (FEA)

CAD to simulation workflow

Job description

Type One Energy Group is seeking a Summer Internship in Mechanical Engineering in Knoxville, TN. As an intern you will contribute to the design and development of mechanical systems for fusion energy projects, gaining hands-on experience with Siemens NX, ANSYS, and COMSOL in a cutting-edge R&D environment.

You will work under the Engineering Resource Manager, engaging in CAD modeling, structural and thermal analyses, and documentation, while participating in prototype fabrication and testing on