About Tempo Based in San Diego, California, Tempo develops thermochemical energy storage (TCES) systems designed for energy-intensive industries. The platform enables industrial operators to shift energy use over time by sourcing power when it is most cost-effective and enables the electrification of high-temperature industrial heat at a cost advantage to using fossil fuels. By storing electricity thermochemically, the system delivers a continuous stream of combustion-free, high-temperature air at up to 1,200°C.

Tempo is backed by leading climate and energy investors, including Breakthrough Energy Ventures, Khosla Ventures, and Prelude Ventures. com . Job Description Tempo is seeking a hands-on Materials Process Technician to support materials development, testing, and pilot-scale production for high-temperature energy storage systems.

, pharma, ceramics, refractory, chemical processing, or similar industries) who can operate equipment, execute test plans, and support materials processing activities. This is a high-ownership, execution-focused role. Candidates must demonstrate hands-on capability through a practical skills assessment as part of the hiring process.

Key Responsibilities

Materials Processing Sample Preparation Prepare, batch, mix, and form materials for testing Support synthesis activities across R D and larger-scale batches Assist with pressing, sintering, and post-processing of ceramic materials Maintain consistency and repeatability across sample batches Laboratory Testing Characterization Operate lab equipment including TGA, SEM, Dilatometer, PSA, and Pycnometer (training available) Perform density, porosity, and resistivity measurements Record and organize experimental data accurate Test Execution Lab Support Set up and monitor experiments under engineer guidance Follow test procedures and escalate issues as needed Maintain lab cleanliness, organization, and safety standards Production Equipment Support Support fabrication and assembly of energy storage components for testing Assist with calibration, routine maintenance, and inventory management of lab equipment Follow all safety protocols for chemical and high-temperature operations

Requirements

2–5+ years of hands-on experience in a laboratory or manufacturing environment Experience working with lab equipment and material processing Ability to follow technical procedures and maintain accurate records Strong attention to detail and reliability

Preferred Qualifications

Experience with lab instruments such as TGA, SEM, dilatometer, PSA, pycnometer Experience with powder handling or ceramic processing Familiarity with high-temperature furnaces Job Status and

Compensation

Range Temp to Full-Time Hire (30-day temp period with an assessment at the end of the 30 days to evaluate full-time offer) The US base salary range for this full-time position is $24/hour to $26/hour + equity +

details listed in US role postings reflect the base salary only, and do not include equity or

Benefits

Our salary ranges are determined by role, level, and location. Within the range, individual pay is determined by additional factors, including job-related skills, experience, location, and relevant education or training.

. Physical Demands Sitting and standing: Extended periods at a desk performing computer-based design, simulation, and documentation work, balanced with time at a lab bench or in the shop during hardware build and testing Lifting and carrying : Lift and carry equipment, test fixtures, or hardware assemblies up to 50 lbs.; heavier items handled with mechanical assistance or team lift Hand dexterity: Frequent use of hands for assembly, fabrication, instrumentation hookup, and operation of test and shop equipment Visual acuity: Ability to read engineering drawings, inspect hardware, and identif