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Mainspring Energy

Onsite linear generators for scalable power

Mechanical Design Drafter

Design EngineeringPosted on Nov 9
Full-timeMonterrey, Nuevo Leon, MexicoNo salary listed

About the Job

Requirements

  • Have 4–6 years of experience, or a Bachelor of Science in Mechanical Engineering with 3–5 years of industry experience in a drafting role.
  • Be proficient in SolidWorks or a comparable CAD package, including modeling, large assembly management, and PDM/PLM model and drawing release workflows.
  • Have demonstrable experience applying ANSI/ASME standards for dimensioning, datums, geometric dimensioning and tolerancing (GD&T), AWS weld symbols, and sheet metal callouts.
  • Have experience maintaining revision-controlled Bills of Materials and managing metadata fields.
  • Have experience documenting department and CAD processes.
  • Have experience debugging issues related to SolidWorks, release processes, and industry standards, and be able to mentor colleagues on resolving these issues.
  • Be able to execute moderately difficult CAD tasks carefully, communicate progress, and incorporate team feedback.
  • Have clear verbal and written communication skills in English and Spanish to interact with US-based and local engineering teams.
  • Be willing to ask questions, learn company processes, and build practical engineering judgment.

Responsibilities

  • Create, refine, and maintain detailed 3D CAD models and 2D engineering drawings for COTS parts and designs for product and manufacturing tools.
  • Execute high volumes of CAD queue tickets by accurately and efficiently incorporating engineering requests into 2D fabrication drawings, 3D models, and Bills of Materials within SolidWorks and PLM.
  • Perform self-reviews and peer reviews to ensure drawings meet ANSI standards and internal requirements before releasing files via PLM.
  • Support maintenance of reference assemblies by updating metadata, fixing and repairing broken model mates, defeaturing complex vendor models, and rebuilding complex assemblies.
  • Assist engineers with SolidWorks questions on internal channels and support new documentation and continuous improvement initiatives.

Desired Qualifications

  • Have experience working on tolerance analyses on parts and assemblies.
  • Have exposure to manufacturing processes such as machining, sheet metal, welding, casting, molding, additive manufacturing, or assembly, and be able to identify and resolve design-for-manufacturability issues.
  • Have interest in energy systems, engines, generators, compressors, pumps, thermal systems, fluid systems, structures, electromechanical systems, or industrial equipment.

About the Company

Mainspring Energy

Onsite linear generators for scalable power

Mainspring Energy designs and ships onsite linear generators that produce electricity for commercial and industrial customers, data centers, utilities, and microgrids. The kit uses a straight-line motion that is converted into electric current by magnets moving through copper coils, driven by a flameless, low-temperature air-and-fuel reaction with only two moving parts and an oil-free air-bearing. The system is fuel-flexible, handling natural gas, biogas, hydrogen, ammonia, and propane, and it scales from about 250 kW to more than 100 MW, with near-zero NOx and no after-treatment required. The company sells power as a service, enabling installations with no upfront cost and ongoing payments based on energy use, aiming to lower operating costs and increase energy resilience for its customers.

Company size
501-1,000
Company stage
Series F
Total funding
$813M
Headquarters
Menlo Park, CA
Founded
2010

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