Associate Mechanical Engineer, Hardware Design & Testing

Ring Inc; Menlo Park (CA); On-site; USD 100,000 - 113,000; Full time

Benefits offered by this job

Pre-IPO stock options

Benefits

Job summary

Mainspring Energy is seeking an Associate Mechanical Engineer to contribute to mechanical engineering projects for our Linear Generator platform. You will support mechanical design, CAD, drawings, analysis, testing, documentation, troubleshooting, and release activities.

This role is intended for early-career engineers who are eager to learn and apply fundamentals with guidance from more experienced engineers.

Qualifications

• BS or MS in Mechanical Engineering or a similar engineering field, or equivalent practical engineering experience.
• Foundational understanding of mechanical engineering principles, including mechanics, materials, machine design, thermal systems, fluids, manufacturing, or other relevant coursework or experience.
• Experience with CAD tools such as SolidWorks or similar, including part design, assembly design, drawings, or design documentation.
• Ability to execute well-defined engineering tasks carefully, communicate progress, and incorporate feedback from more experienced engineers.
• Interest in hands-on engineering work, including prototyping, testing, troubleshooting, data collection, and design iteration.
• Clear communication skills and a willingness to ask questions, learn company processes, and build practical engineering judgment.

Responsibilities

• Support mechanical engineering projects by completing well-defined design, analysis, testing, documentation, and release tasks with guidance.
• Create and update CAD models, assemblies, drawings, test fixtures, documentation, and engineering reports.
• Assist with basic calculations, tolerance reviews, simulations, test setup, test execution, data review, and troubleshooting.
• Learn company processes for design reviews, drawing release, validation, change control, manufacturing support, and field implementation.
• Communicate progress, questions, blockers, and findings clearly while asking for help early when scope, priorities, or technical approach are unclear.
• Build practical engineering judgment through repeated feedback, hands-on work, and exposure to different design, analysis, test, release, and troubleshooting cycles.

Skills

CAD (SolidWorks)

Hands-on prototyping

Data collection & analysis

Communication skills

Education

BS in Mechanical Engineering

MS in Mechanical Engineering

Equivalent practical engineering experience

Tools

GD&T

FEM/FEA

Testing equipment setup

Job description

Mainspring Energy is seeking an Associate Mechanical Engineer to contribute to mechanical engineering projects for our Linear Generator platform. You will support mechanical design, CAD, drawings, analysis, testing, documentation, troubleshooting, and release activities.

This role is intended for early-career engineers who are eager to learn and apply fundamentals with guidance from more experienced engineers.