Project Engineer

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. Position Overview We are seeking a hands-on, detail-oriented Project Engineer with 3 to 5 years of engineering experience to join our multidisciplinary Applications Engineering team, supporting project execution. This role serves as a primary technical bridge between front-end detailed design and field execution, taking engineered and modular process systems from concept through construction and field startup. The role will be responsible for the development of project documents, and ensuring successful field deployment of projects. The ideal candidate blends strong technical documentation capabilities (PFDs, P&IDs, and SolidWorks) with a rigorous understanding of instrumentation and project execution. This individual should possess direct, field-based commissioning and startup experience. Core Responsibilities Detailed Design & amp; Engineering Deliverables Develop, update, and manage engineering process drawings, including Process Flow Diagrams (PFDs), mass/heat balance tables, and Piping & Instrumentation Diagrams (P&IDs). Utilize SolidWorks to modify and review 3D project layouts, equipment arrangements, structural frames, and pipe routings. Instrumentation & amp; Equipment Specification Author, review, and finalize instrumentation and equipment datasheets for process systems (e.g., control valves, pressure relief valves, flowmeters, level transmitters, temperature elements, and process equipment). Coordinate directly with instrument and equipment vendors to review technical quotes, evaluate bids against project specifications, and review vendors calculations. Generate Instrument lists, I/O lists, and junction box wiring drawings. Support development of control narrative for heat offtake applications. Project Coordination & Vendor Management Support the Lead Project Manager in tracking engineering schedules, procurement lead times, equipment expediting, and budget adherence. Interface closely with multi-discipline teams (mechanical, structural, electrical, and automation) to resolve technical and scope gaps. Witness and sign off on Factory Acceptance Testing (FAT) at vendor facilities, verifying dimensional accuracy, wiring continuity, and mechanical assembly against engineering drawings. Onsite Commissioning & Startup Execution (Critical) Lead and support field pre-commissioning checkout, commissioning, and handover activities at customer operating facilities and job sites for our demonstration projects. Execute point-to-point wiring checks, cold and hot loop checks, valve stroking, instrument calibration verifications, and interlock/safety shutdown testing. Lead onsite mechanical completions: pressure testing, punch-list creation and closeout, and leak-check verifications. Provide direct engineering support during startup, tuning, and operational performance testing. Actively enforce field safety procedures Required Qualifications Education: Bachelor of Science (B.S.) in Mechanical Engineering, Chemical Engineering, Petroleum Engineering, or a closely related discipline. Experience: 3 to 5 years of post-graduate engineering experience working in design, fabrication, or field execution roles within process industries. Ability work onsite in San Diego 5 days a week. Compensation Range The US base salary range …

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