# Mechanical Engineer at Solcoa

> Onsite · United States · Unspecified · Software engineering · open. Source: https://alderhq.app/jobs/ashby%3Asolcoa%3Af01f2dea-c4de-4acc-a8a8-8180f2edfca3 (read 2026-11-10).

## Facts (observed)

- Company: [Solcoa](https://alderhq.app/companies/solcoa)
- Location text: Alameda, California
- Where it can be done from (inferred): Onsite · United States (evidence: "Location: Alameda, California")
- Posted: 2025-09-02 (434 days ago)
- First seen by alder: 2026-11-07 · last verified: 2026-11-10
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://jobs.ashbyhq.com/solcoa/f01f2dea-c4de-4acc-a8a8-8180f2edfca3

## Pay and sponsorship

- Posted pay: $120k–$250k per year (from the listing's pay field)

## Description (the employer's text)

### Making the Metals Powering the World

Solcoa is building the next generation of American metalmaking, starting with rare earths — the metals of power and motion. We've developed a new chemistry that converts rare earth oxides into high-purity metals — the materials inside every EV, fighter jet, wind turbine, and data center — cleaner, cheaper, and faster than any conventional process. Now we're scaling it to thousands of tonnes of annual production.

### The Role

We’re looking for a hands-on mechanical engineer to design, prototype, and scale the next generation of our rare-earth reactors. You’ll own designs from concept through commissioning, working closely with machinists and researchers to turn ideas into operating systems.

### Levels & Compensation

We’re hiring across multiple levels, with scope and compensation based on demonstrated engineering ability and experience delivering working hardware.

Mechanical Engineer — $120,000–$175,000: Own reactor subsystems, taking designs through fabrication, assembly, testing and commissioning.

Senior Mechanical Engineer — $175,000–$210,000: Lead complex equipment designs, resolve thermal, vacuum and materials challenges, and coordinate delivery across engineers, machinists and vendors.

Staff Mechanical Engineer — $210,000–$250,000: Set the mechanical architecture for reactor systems, lead major scale-up decisions, and establish engineering standards across projects.

All levels are hands-on and include stock options.

### What You’ll Do

Architect, model, and draw reactor subsystems (thermal, vacuum, materials handling) in CAD (Fusion).

Specify components, tolerances, and materials for high-temperature, corrosive, and vacuum environments.

Build and iterate prototypes; run experiments; analyze data to drive design decisions.

Author procedures, test plans, and safety/operating documentation.

Collaborate with fabrication partners; support continuous improvement.

### What You Bring

### Required

Proficiency in CAD (Fusion).

Hands-on experience with metal machining and shop tools.

Experience with high-temperature systems and/or vacuum hardware.

Detail-orientation and precise technical execution.

Comfort working independently in a fast-paced, build-measure-learn environment.

Availability to start soon.

### Preferred

Coursework or experience in chemistry or physics (thermo, materials, reaction engineering, or similar).

### Compensation & Benefits

Competitive base salary.

Generous stock options.

Comprehensive medical, dental and vision insurance.

Company-provided lunch daily.

Visa sponsorship available if needed.

---
Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/ashby%3Asolcoa%3Af01f2dea-c4de-4acc-a8a8-8180f2edfca3 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.