Test Engineer - Development
- Salary
- $80,000 - $180,000 annually
- Level
- Mid
Not stated in the posting: work type, visa.
Open. First seen 2 October 2026.
About the role
General Matter's standard text
About the Company
General Matter enriches uranium.
We are designing, building, and operating the world’s lowest-cost enrichment services, here in the US.
In the process, we are restoring America’s ability to produce nuclear fuel to power AI, advanced manufacturing and critical industries our country relies on to remain competitive.
Fuel drives the cost of advanced reactor electricity production, and enrichment drives the cost of the fuel that advanced reactors consume. Reliable, low-cost enrichment is the catalyst for the nuclear Renaissance now under way.
Our mission is to make nuclear not only the cleanest and safest source of baseload power, but also the most affordable. We believe abundant nuclear energy will lead to a post-scarcity society.
We were incubated inside Founders Fund, like Anduril and Palantir before us, and are backed by over a dozen of the world's top venture capital firms.
Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production.
We are a mission-driven company with a culture of urgency, accountability, and transparency.
Help us build a high-energy society by making the cleanest, safest form of baseload energy the most affordable.
About This Role
The Test Engineer owns test infrastructure and supports test design, setup, and operations to validate hardware developed by the design engineers. This position validates that all hardware designs meet requirements during development and ensures long-term system and hardware reliability.
Responsibilities:
- Design, develop, and maintain custom test solutions and data acquisition systems for in-house developed mechanical and electrical hardware.
- Lead design reviews, run data analysis, visit vendors, define and execute hardware test plans.
- Work closely with responsible design and manufacturing engineers to drive reliability improvements
- Build test equipment, implement test automation, analyze failures and execute qualification campaigns.
Basic Qualifications:
- Bachelor's degree in mechanical, electrical or similar engineering field.
- 2+ years of experience in hardware development, test engineering, or similar role.
- Ability to design and fabricate test fixtures, adapters, and other tools needed for testing.
- Experience with digital-hardware communication/integration.
Preferred Skills and Experience:
- Experience performing finite element analysis (FEA).
- Experience with test equipment (data acquisition, instrumentation, pumps, valves, and automation).
- Experience with the building and testing of fluid and/or electrical systems.
General Matter's standard text
Additional Requirements:
- Ability to work extended hours and weekends as necessary.
Equal Opportunity Employer
General Matter is an Equal Opportunity Employer; employment with General Matter 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.
Compensation and Benefits
The base salary range for this role is $80,000-$180,000 annually.
Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. Please note that the stated salary range is an estimate and may be adjusted based on market conditions, business needs, or other factors.
In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan.
What this role asks for
Particular to this role
FEA
Rare in General Matter's other 77 open postings.
Standard for QA / testing roles
Test Automation
Common in QA / testing postings at any company.
52% of this description is written for the role. The rest is General Matter's standard text, folded away below.
Read against General Matter's other open postings on this site.
The team: Mechanical
This role is one of 10 open in Mechanical.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
FEA (5 of 10), CATIA (2 of 10), GD&T (2 of 10), SolidWorks (2 of 10), Test Automation (2 of 10)
OTHER ROLES ON THIS TEAM
- Mechanical Engineer, Optomechanical Systems posted Sep 17
- Materials & Process Engineer posted Aug 26
- Reliability Engineer posted Aug 26
- Test Engineer (New Grad) posted Aug 12
- Mechanical Engineer (New Grad) posted Aug 12
- Piping Designer posted Mar 26
- Mechanical Design Engineer - Plant Piping Systems posted Feb 18
- Fluid Systems Engineer, Responsible Engineer posted Dec 31
- Mechanical Engineer posted Jan 8
From the team and dates on General Matter's own job board.
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