Sr. Principal Electrical Engineer

About the role

Twelve is a next‑generation industrial company advancing how everyday products are made from the molecule up. AirPlant™ is our Power‑to‑X hydrocarbon platform that harnesses CO₂, water, and electricity to make essential fuels and chemicals that underpin the global economy. The Sr. Principal Electrical Design Engineer will join the Plant Design team, supporting greenfield capital project execution for process plants that use electrolyzers and other balance‑of‑plant equipment to convert CO₂ into value‑added products. This is an onsite role in Moses Lake, WA with periodic travel to Twelve HQ in Berkeley, CA, and relocation support is provided.

Responsibilities

• Develop electrical engineering FEL 1‑2‑3 deliverables and represent Twelve as an owner’s engineer throughout a project lifecycle.
• Work with other electrical engineers on balance‑of‑plant electrical designs for process plant and electrolyzer systems.
• Interface with internal disciplines and project functions such as process, controls, instrumentation, mechanical, procurement, and project management.
• Interface with external EPCs, suppliers, manufacturers, construction contractors, OEMs, distributors, consultants, and other subject‑matter experts.
• Ensure plants are designed and built to appropriate standards, with consideration for reliability, maintainability, constructability, operability, and safety.
• Collaborate with business development to continually integrate improvements to Twelve’s core technology.
• Review and approve electrical drawings, equipment data sheets, requisition packages, engineering and construction work packages, material take‑offs/estimates, FAT/SAT plans, commissioning plans, and startup activities.
• Manage or guide third‑party electrical engineering interfaces.
• Execute or guide electrical studies.
• Provide technical support to on‑site construction teams and assist with plant commissioning and start‑up activities.
• Support operational issues as needed.

Qualifications

• Willingness to temporarily relocate to Moses Lake, WA until co‑location with the EPC contractor (location TBD) and eventual deployment to the commercial plant site; high mobility and flexibility required.
• Bachelor’s degree or higher in Electrical Engineering.
• 20+ years of experience, preferably in continuous process plants or similar mission‑critical environments.

Skills

• Expert in electrical infrastructure design principles for substations and industrial plant power distribution.
• Experience designing, specifying, procuring, installing, and supporting operations/maintenance of power distribution equipment such as substations, power converters, rectifiers, transformers, HV/MV/LV switchgear, MCCs, motors, protective relaying & metering, UPS, EHT, passive fire protection, arc flash, generators, VFDs, e‑Houses, modular e‑Houses, etc.
• Expertise with area classification, equipment specification, and wiring methods.
• Senior expertise in electrical studies: load flow, short circuit, motor starting, protective device settings and coordination, arc flash, and harmonic analysis.
• Deep knowledge of IEEE, API, and other industry‑specific electrical engineering codes and standards.
• Experience working with EPCs and Owner’s Organizations on industrial‑scale engineering, construction projects, and operating plants.
• Hands‑on experience with vendor packages, medium to large modules, price books, and supplier quality surveillance.
• Strong design, analytical, and financial acumen; proven ability to drive cost optimization during estimate preparation.
• Familiarity with global sourcing strategies, contract structures, cost controls, and commercial risk management.
• Expertise in Front End Loading, Detailed Engineering, project execution processes, and project lifecycles.
• Expert in petrochemical plant operating philosophies and business drivers.
• Ability and enthusiasm to work as part of a highly collaborative, dynamic, and diverse team.

Benefits

• Medical, dental, and vision coverage.
• Paid sick days and vacation.
• Competitive salary and equity compensation.
• Relocation support for the move to Moses Lake, WA.
• Diverse and inclusive work environment.

Pay

United States Wage Range: $204,000 – $255,000