Mechanical Engineer - Hardware Design & Validation

Doist; Menlo Park (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Mainspring Energy is seeking a Mechanical Engineer to own defined-scope mechanical engineering tasks for our Linear Generator platform. You will design mechanical hardware, support analysis and testing, and drive work through validation and release.

You will collaborate with engineering, manufacturing, quality, supply chain, test, and service teams to ensure successful implementation. The role is suited for engineers who can independently manage defined-scoped work, apply solid mechanical

Qualifications

• Own defined-scope mechanical engineering tasks and moderate‑complexity projects.
• Design mechanical hardware and support analysis and testing.
• Communicate clearly and drive work through validation and release.

Responsibilities

• Design mechanical hardware and lead analyses and testing activities.
• Support validation, release, and documentation for defined workstreams.
• Collaborate cross-functionally with engineering, manufacturing, quality, supply chain, test and service teams.

Skills

Mechanical design

Cross‑functional collaboration

Analysis and testing

Project ownership

Job description

Mainspring Energy is seeking a Mechanical Engineer to own defined-scope mechanical engineering tasks for our Linear Generator platform. You will design mechanical hardware, support analysis and testing, and drive work through validation and release.

You will collaborate with engineering, manufacturing, quality, supply chain, test, and service teams to ensure successful implementation. The role is suited for engineers who can independently manage defined-scoped work, apply solid mechanical