Mechanical Drafter - CAD

Mainspring Energy

300

Monterrey, Nuevo León

Posted on: 2026-09-03

Category: energy

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Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

Mainspring Energy is a power infrastructure company that designs and manufactures the Linear Generator, a novel primary power solution that delivers firm, flexible, and low-emissions electricity at the point of need. The company serves a wide range of markets including utilities, data centers, enterprise customers, and industrial operations, offering modular units that can be deployed quickly and scaled from hundreds of kilowatts to hundreds of megawatts. The Linear Generator is capable of operating on multiple fuels including natural gas, biogas, and field gas, and is designed to transition seamlessly to zero-carbon fuels over time.

About Mainspring

Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.

The core values that ground our work, guide our decisions, and connect us together:

Pragmatic Optimism
Excellence without Ego
Proactive Collaboration

Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.

In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.

Job Overview

Mainspring is seeking a Mechanical Drafter to support our engineering team for our Linear Generator platform. In this role, you will build practical drafting skills by supporting CAD modeling and drawing work for COTS (Commercial off-the-shelf) parts, detailing out custom parts and tools, handling assembly rebuilds, and implementing CAD modeling/drawing requests from the engineering team.

This role is intended for drafters who have developed practical CAD drafting experience or early-career engineers who are looking to build this skillset, applying their mechanical fundamentals to CAD modeling and drawing work. A strong candidate should be detail-oriented, eager to learn, and able to execute well-defined tasks with guidance from more experienced drafters or engineers.

Responsibilities

Create, refine, and maintain detailed 3D CAD models and 2D engineering drawings for COTS parts

Execute on high volumes of CAD queue tickets to incorporate engineering requests into 2D fabrication drawings, 3D models, and BOMs accurately and efficiently 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, updating metadata, fix and repair broken model mates, defeature complex vendor models, and perform rebuilds

Assist engineers with SolidWorks questions on internal channels and support new documentation and continuous improvement initiatives

Qualifications

2-4 years or BS in Mechanical Engineering with 1-3 years of industry experience in a drafting role

Proficient in SolidWorks or a comparable CAD package, modeling, large assembly management, and experience with some level of PDM/PLM model and drawing release workflows

Familiarity of ANSI/ASME standards for dimensioning, datums, GD&T application, and weld/sheet metal callouts.

Experience maintaining revision-controlled Bills of Materials and managing metadata fields

Ability to execute well-defined CAD tasks carefully, communicate progress, and incorporate feedback from others on the team

Clear verbal and written communication skills in English and Spanish to interact with US-based and local engineering teams. A willingness to ask questions, learn company processes, and build practical engineering judgment

Preferred Qualifications

Internship, co-op, project team, research, or early-career experience involving modeling and drawing skills in a SolidWorks comparable CAD package

Exposure to tolerance analysis on parts and assemblies is a plus

Demonstrable experience applying GD&T and ANSI/ASME standards

Exposure to manufacturing processes such as machining, sheet metal, welding, casting, molding, additive manufacturing, or assembly and ability to identify and resolve design for manufacturability issues is a plus

Interest in energy systems, engines, generators, compressors, pumps, thermal systems, fluid systems, structures, electromechanical systems, or industrial equipment