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Posted on:August 6, 2026
Closed on:September 2, 2026

Mechanical Engineering Intern - Fall at Rainmaker

Rainmaker is hiring a Mechanical Engineering Intern - Fall in El Segundo, CA, US. On-site. Pay: USD 36k-60k/yr.

About Rainmaker

Rainmaker develops a modern cloud seeding system to address water scarcity and inclement weather. The company integrates radar validation, weather-resistant unmanned aircraft systems (UAS), numerical weather modeling, and sustainable seeding agents into a precipitation enhancement solution.

Mechanical Engineering Intern - Fall job description

Rainmaker is pioneering a modern cloud seeding system to solve water scarcity and inclement weather problems. We develop and incorporate radar validation, weather-resistant UAS, numerical weather modeling, and sustainable cloud seeds into an effective precipitation enhancement solution.

The Engineering team at Rainmaker works on our UAS, dispersion payload, and in-situ/remote sensing systems. If you are interested in working in an extremely innovative and fast paced environment, where your work directly makes an impact and difference in our operational system, this is a fantastic opportunity.

In this role you will be reporting directly to the Lead Mechanical Engineer and will be working on mission critical subsystems for our UAS platform.

What You'll Do

  • Rapid Hardware Prototyping: Design and build functional prototypes for UAS subsystems, iterating quickly based on flight test feedback and mission requirements.

  • Test fixture design: Help conceptualize, design, build, and run test fixtures for prototype components.

  • FEA: Work with mechanical engineers to define loading and boundary conditions, set up FEA studies, run and validate results.

  • Documentation: Write technical documentation, prepare fabrication and assembly data for manufacturers. 

  • Collaborate with cross-functional teams: Electrical engineers, software engineers, and manufacturing

  • Required Qualifications

  • Experience with CAD (Solidworks required)

  • Solidworks FEA experience, Linear Static, Linear Dynamic, Nonlinear Dynamic, Thermal.

  • Experience with basic manufacturing/prototyping using 3D printers

  • Sheet metal design and manufacturing experience (preferred) 

  • Past record of having taken a product from the conceptual to production stage (Preferred)

  • Cross functional ability to work with multiple teams (Electrical and Software)

  • Rainmaker is an Equal Opportunity Employer; employment with Rainmaker is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.


    Rainmaker participates in E-Verify. To learn more, including your rights and responsibilities, please visit E-Verify.gov.

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