Austin Mechanical Design Engineer: CAD/FEA

Subcritical Systems Inc; Austin (TX); On-site; USD 95,000 - 130,000; Full time

Benefits offered by this job

Healthcare insurance

Startup environment

Live in Austin, Texas

Job summary

Subcritical Systems Inc. seeks a Mechanical Design Engineer to join our on-site team in Austin, TX. You will develop designs for subcritical assembly and particle accelerator components, translating requirements into manufacturable solutions while collaborating with scientists and engineers.

The role emphasizes NX/SolidWorks proficiency, FEA capability, and a strong grasp of GD&T and drawing standards. Visa sponsorship is not available; on-site work is required.

Qualifications

• Bachelor’s degree in Mechanical Engineering with industry experience.
• Proficiency with NX, SolidWorks, Solid Edge, Pro-E, or similar 3D CAD tools (NX preferred).
• Proficiency in Finite Element Analysis.
• Ability to create, revise, and check mechanical drawings using GD&T per ASME Y14.5.
• Familiarity with machining, metalworking, welding.
• Experience applying design-for-manufacturing (DFM) and design-for-assembly (DFA) principles to support engineering intent.
• Ability to translate engineering requirements into detailed drawing packages.
• Experience working in a team environment with scientists, engineers and technicians.
• Strong work ethic, resilient, able to work in a fast-paced collaborative environment.

Responsibilities

• Develop conceptual and detailed mechanical designs for components, assemblies, and systems.
• Translate functional requirements, specifications, and performance targets into manufacturable designs.
• Create and manage 3D CAD models and 2D fabrication drawings using NX or SolidWorks (NX preferred).
• Conduct engineering calculations and simulations (stress, thermal, vibration, fatigue, or CFD).
• Generate assembly models, weldment drawings, and detailed part documentation.
• Use analytical tools or finite-element packages to validate design integrity.
• Select materials, coatings, and surface treatments for performance and corrosion resistance.
• Develop fabrication and assembly specifications, bill of materials and procurement packages.
• Prepare engineering documentation, including design reports, calculations, and interface control documents.
• Manage fabrication tasks and fabrication procurements.
• Support build-out of in-house manufacturing and testing systems
• Ensure compliance with applicable codes, standards, and safety requirements.
• Apply GD&T, DFM, and DFA practices to ensure drawings are clear, manufacturable, and accurate
• Interface with suppliers, vendors, and fabrication shops to communicate drawing requirements and resolve build issues

Skills

NX

SolidWorks

Solid Edge

Pro-E

GD&T

Finite Element Analysis

3D CAD

Education

Bachelor’s degree in Mechanical Engineering

Tools

NX

SolidWorks

Solid Edge

Pro-E

Job description

Subcritical Systems Inc. seeks a Mechanical Design Engineer to join our on-site team in Austin, TX. You will develop designs for subcritical assembly and particle accelerator components, translating requirements into manufacturable solutions while collaborating with scientists and engineers.

The role emphasizes NX/SolidWorks proficiency, FEA capability, and a strong grasp of GD&T and drawing standards. Visa sponsorship is not available; on-site work is required.