Product Design Engineering Intern, Fall 2025

Reposted 11 Days Ago
Be an Early Applicant
San Bruno, CA
Hybrid
35-45
Internship
Hardware • Social Impact • Energy • Agriculture
Trash stinks. Together, we can do better. Mill has created a new system to help you outsmart waste at home.
The Role
The intern will work on product design, developing prototypes, executing tests, and supporting CAD design and engineering activities.
Summary Generated by Built In

Mill is all about answering a simple question: how can we prevent waste? Less waste can save time, money, energy, maybe even our planet. And there’s no better place to start than food. Food waste is one of the most solvable climate problems facing us today. Plus, our trash really stinks. It’s gross, heavy, and our least favorite chore. At Mill we are striving to build a better environment for all, as we take on climate and kitchen change.

As a Product Design Engineering intern at Mill, you’ll be working with a tight-knit, fast-paced team on a novel consumer product. Your day-to-day will include hands-on work with hardware components and lab equipment as well as CAD design tools like NX. Since we’re a small team, your work and learning will span design, tooling, and testing as we push towards launch. This internship is for someone who wants to learn and be creatively challenged.

Responsibilities

  • Work closely with the Mill cross functional team on the design and validation of new products.
  • Develop prototypes and execute tests in order to drive design towards mass production maturity.
  • Support 3D CAD design and 2D documentation.
  • Support engineering build activities, partnering with suppliers and CMs to troubleshoot and resolve manufacturing quality issues.

Minimum Qualifications

  • BS, MS or PhD in Mechanical Engineering (obtained or in progress)
  • Working knowledge of manufacturing processes and material selection for the design and development of electro-mechanical systems.
  • Proficient in 3D CAD (prefer Nx).
  • Proficient in a variety of rapid prototyping methods.
  • Strong analytical and communication skills.

Preferred Qualifications

  • Experience with simulation tools (FEA and thermal) and statistical analysis methods.
  • Experience with designing for high volume manufacturing (DFM/DFA).

The estimated base hourly range for this position is $35 to $45, which does not include the value of benefits or a potential equity grant. A wide range of factors are considered in making compensation decisions, including but not limited to skill sets, market conditions, experience and training, licensure and certifications, and business and organizational needs. Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor an employment visa for this role

Top Skills

Cad
Fea
Nx
Rapid Prototyping
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The Company
HQ: San Bruno, CA
110 Employees
Year Founded: 2020

What We Do

We’re on a mission to eliminate waste for good, starting with the food that ends up in landfills.

Did you know that more than half of the food in landfills comes from home kitchens (ReFED)? And food in landfills turns into methane – which is 80x more potent than CO2 over a 20-year period (IPCC).

At Mill, we’re working to turn kitchen scraps into food for chickens. This keeps food in our food system and out of landfills.

Why Work With Us

Food isn't trash. Mill keeps it from stinking up your kitchen – and the planet.

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