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. For more information, visit www.tempoenergy.com . Job Description Tempo is seeking a highly motivated and skilled Engineering Technician with strong welding capabilities to produce engineered parts and assemble testing apparatus, instruments, sensors, prototypes, and power electronic components. The ideal candidate is a driven professional who has recently graduated from a strong technical program, has 2–4 years of hands-on experience, and is eager to bring their energy and foundational skills to a fast-paced startup environment. You will work both independently and collaboratively to bring our engineering designs to life. This role is integral to the development and refinement of high-temperature energy storage components, offering an incredible opportunity to work on complex R&D projects and grow your career at the cutting edge of thermochemical energy storage technology. Key
Responsibilities Interpret 3D CAD models, 2D drawings, and spec charts to plan and execute part manufacturing; measure, mark, and cut raw materials accordingly Perform TIG/MIG welding on structural assemblies and operate machine shop equipment (mills, lathes, drill presses, band saws) to create or modify parts Assist in assembling complex mechanical and electromechanical systems as required Prepare finished components for dimensional accuracy, weld integrity, and defects for inspection Modify and repair parts, prototypes, and test rigs to support agile R&D needs using welding, grinding, cutting, and machining techniques Work with high-temperature and specialty materials (refractory metals, ceramics, alloys) to meet durability and performance
requirements for thermochemical applications Partner with engineers to interpret technical drawings, troubleshoot fabrication challenges, and recommend design improvements for manufacturability Inspect fabricated and welded components for structural integrity, finish, and dimensional accuracy to ensure parts meet required tolerances Maintain welding gear and machine tools in optimal working condition; follow all safety protocols when welding, handling high-temperature materials, and operating machinery Record prototype builds, assembly procedures, fabrication parameters, and component modifications, providing real-time feedback to engineering and R&D teams
Qualifications Required: Associate degree in Mechanical Engineering Technology, formal welding certification, or completion of a technical/trade school program 2–4 years of hands-on experience in mechanical fabrication, welding, and assembly; experience in an R&D or startup environment a plus Proficiency in TIG and MIG welding on various metals Exceptional safety acumen and commitment to safe work practices Familiarity with manual mills, lathes, grinders, and general metalworking tools Ability to read and interpret engineering drawings, blueprints, and technical specifications Strong willingness to learn about high-temperature and specialty materials (ceramics, alloys, refractory metals) Exceptional attention to detail with the ability to work to tight tolerances Proactive learner with the ability to assist in troubleshooting basic fabrication challenges. Clear communicator able to collaborate effectively with engineers and team members in a fast-paced R&D environment Genuine interest in learning and growing within an R&D or startup environment; comfortable wearing multiple hats to get the job done Preferred: Experience in high-temperature applications, thermal systems, or energy storage Knowledge of materials science, particularly around fabrication and welding of heat-resistant materials Familiarity with safety standards and best practices in fabrication and high-temperature R&D settings
Compensation Range The US base hourly salary range for this full-time position is $20.14 to $22.88 + equity +
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. Please note that the
compensation details listed in US role postings reflect the base salary only, and do not include equity or
benefits . 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 identify dimensional and surface quality features during fabrication and testing PPE compliance: Ability to wear and work effectively in required personal protective equipment, including safety glasses, heat-resistant gloves, safety shoes, and other appropriate gear in high-temperature lab and shop environments Safety acumen: Demonstrated understanding of lab and shop safety protocols, including hazard recognition and risk mitigation in environments involving high-temperature equipment, energized systems, and fabrication machinery Travel: Occasional travel (estimated Working at Tempo Tempo is a lean organization working on exciting challenges, and the people who thrive here share a few things in common beyond their technical skills. Clear, direct communication: You professionally say what you mean, lead with empathy, use tact, ask when you're unsure, and keep the people around you informed without being asked. At a company our size, communication gaps are expensive, and good communicators add to success and efficiency! Low-ego helpfulness: You're willing to jump in on work that isn't strictly yours, whether that's helping a teammate debug something, lending a hand in the shop, or flagging an issue you noticed outside your lane. No one here succeeds in a silo. Intellectual curiosity: You're genuinely interested in how things work, not just your piece of it, but the broader system. Tempo sits at the intersection of chemistry, mechanical engineering, power electronics, and software; the more you understand about the whole, the more valuable you become. Business awareness: You understand that your work exists in a business context. You think about cost, timeline, and tradeoffs—not just technical elegance—and you make decisions accordingly. Comfort with ambiguity: Processes here are still being built. You can make progress without a perfect playbook, and you know when to ask for direction versus when to use your judgment and move forward. Accountability: You own your outcomes, including the misses. When something goes sideways, the instinct here is to fix it and learn from it, not to explain why it wasn't your fault. This job description is intended to provide a general overview of the position and is not an exhaustive list of duties,
responsibilities, or
qualifications. Tempo reserves the right to modify, add, or remove
responsibilities as business needs evolve. Employees may be asked to perform duties outside of those listed above from time to time. Tempo is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other characteristic protected by applicable law. We are committed to building a diverse and inclusive team and encourage candidates from all backgrounds to apply. Tempo participates in E-Verify. Employment is contingent upon successful completion of a background check including employment and education check. California Privacy Notice (CCPA) - In connection with your application, Tempo collects personal information that you voluntarily provide, such as your name, contact information, employment history, and other information relevant to your candidacy. This information is collected and used solely for the purpose of evaluating your application and administering the hiring process. Tempo does not sell applicants' personal information. For more information about your rights under the California Consumer Privacy Act (CCPA), please contact HR. Tempo does not accept unsolicited resumes or candidate profiles from external recruiters, staffing agencies, or third-party search firms. Submission of unsolicited resumes by any external agency — whether to a Tempo employee, hiring manager, or any other representative — does not constitute or imply an agreement for placement fees, and Tempo will not be responsible for any fees related to unsolicited submissions under any circumstances. Any candidate submitted without a prior, fully executed, written fee agreement between the agency and Tempo's Human Resources department will be deemed the sole property of Tempo. Tempo reserves the right to pursue and hire such candidates without obligation to the submitting agency.
