Engineering Technician - Operations
About the job
- At least 5 years of experience in industrial equipment maintenance, mechanical assembly, or construction.
- Proficiency in a machine shop using manual and semi-automated machines such as lathes, mills, and drill presses.
- Proficiency with hand tools such as wrenches, screwdrivers, calipers, handsaws, and powered saws.
- Proficiency with Microsoft Excel, Microsoft Word, and Microsoft Outlook.
- Experience taking a basic concept through design and fabrication.
- Experience writing procedures and other technical documentation.
- Ability to work independently in a fast-paced environment.
- Ability to collaborate with engineers and technicians.
- Ability to regularly move boxes weighing up to 25 pounds.
- Execute machining, fabrication, and assembly tasks with direction from project engineers, including fabricating parts, assembling extrusion or unistrut structures, connecting piping, and wiring instrumentation.
- Work with stakeholders to design and fabricate simple fixtures.
- Work directly with engineers to assist with troubleshooting and remediation work.
- Set up, operate, and break down experiments with direction from project engineers.
- Assist with equipment upkeep and maintenance.
- Receive and put away materials, maintain workshop space, maintain shared tools, and maintain equipment to support engineering activities.
About the company
Fourth Power develops a thermal battery system for utility-scale energy storage. It stores excess wind and solar energy at very high temperatures to provide reliable power when needed, with a high power density and modular design. The subsystems sit in an argon environment to prevent fire risk and chemical degradation, enabling safe, scalable operation where energy and power can be scaled independently. The company differentiates itself by offering a cost-competitive, scalable solution aimed at utilities and regulators, rather than consumers, positioning renewable energy storage as a cost-effective alternative to fossil fuels. Its goal is to make renewable energy the most affordable and accessible source of power through advanced thermal storage technology, working with utility companies and government partners to broaden adoption.
Company Size
11-50
Company Stage
Series A
Total Funding
$39M
Headquarters
Cambridge, Massachusetts
Founded
2021
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Simplify's Take
What believers are saying
- Fourth Power raised $20 million in September 2025 from Munich Re Ventures, DCVC, Breakthrough.
- Company plans a 1MWh demonstration outside Boston using full-scale commercial components.
- California CPUC ex parte meetings with Form Energy and Fourth Power in May 2026 signal policy traction.
What critics are saying
- No utility-scale deployment exists yet; 1MWh demo still targets 2026 completion.
- Form Energy and Antora already compete for long-duration grid contracts and regulators.
- If 2026 prototype misses performance targets, Fourth Power loses existential commercialization credibility.
What makes Fourth Power unique
- MIT-Georgia Tech spinout Fourth Power uses 2400°C liquid metal heat transfer.
- Its modular thermal battery scales energy and power independently for utilities.
- Argon-isolated subsystems reduce fire risk and chemical degradation versus lithium-ion.
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Benefits
- Stock Options