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Sr. Principal Electrical Engineer

Twelve· Plant Development
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Moses Lake, WA$204k - $255kFull-timePosted 6mo ago

About the role

Lead the electrical plant design from inception to steady operations for greenfield process plants, partnering with external parties to execute detailed design and construction, with a focus on electrical infrastructure for process plants and electrolyzer systems.

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 adjacent internal disciplines and project functions such as process, controls, instrumentation, mechanical, procurement, and project management.
  • Interface with external EPCs, suppliers and manufacturers, construction contractors, OEMs, distributors, consultants, and other subject matter experts.
  • Ensure plants are designed and built to appropriate standards, with appropriate consideration given to 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 and requisition packages, Engineering and Construction Work Packages, Material Take-Offs/ Estimates, FAT/ SAT plans, commissioning plans, and startup activities, etc.
  • Manage or guide 3rd 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

  • Bachelor’s degree or higher in Electrical Engineering.
  • 20+ years of experience, preferably in continuous process plants or similar mission-critical environments.
  • Expert in electrical infrastructure design principles for electrical substations and industrial plant power distribution.
  • Experienced in designing, specifying, procuring, installing, and/or supporting operations and maintenance of power distribution electrical equipment, such as: Substations, power converters and rectifiers, distribution/substation transformers, HV/ MV/ LV switchgear, MCCs, motors, protective relaying & metering, UPS’s, EHT, Passive Fire Protection, Arc Flash, generators, VFDs, e-Houses, HV/ MV substations, and modular E-Houses, etc.
  • Expertise with area classification including equipment specification and wiring methods.
  • Senior expertise with electrical studies such as load flow, short circuit, motor starting, protective device settings and coordination, arc flash, and harmonic analysis.
  • Extremely knowledgeable in IEEE, API, and other industry specific electrical engineering technical codes and standards.
  • Previous experience working with or for EPCs and Owner’s Organizations on industrial-scale engineering, construction projects and operating Plants.
  • Hands on experience in vendor packages, medium to large modules including formation of price books, and Suppliers’ Quality Surveillance.
  • Strong design, analytical and financial acumen with experience in driving cost optimization during the preparation of estimates.
  • Strong familiarity in global sourcing strategies related to electrical equipment, and bulk materials, contract structures, cost controls, and commercial risk management.
  • Expertise in Front End Loading, Detailed Engineering and 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.

Skills

Required:Electrical engineering design leadership (FEL 1-3)Electrical infrastructure design (substations and industrial power distribution)Power equipment lifecycle managementElectrical studies (load flow, short circuit, motor starting, protective device settings, arc flash, harmonic analysis)

Benefits

  • Medical, dental, and vision coverage
  • Paid sick days and vacation
  • Competitive salary and equity compensation commensurate with experience
  • Diverse and inclusive work environment
Last updated Sep 17, 2026. Interested? Apply on the company site.

About Twelve

A World Made from Air™

We transform CO2 into essential products.

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