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Senior Process Engineer

Hydrogen Systems · Seattle, Washington

First Mode is a creative engineering company solving the toughest problems on and off the planet, with the goal of having an outsized impact on the world around us. We build the barely possible.  

From our state-of-the-art manufacturing and production facilities in Seattle and Perth, we design and deliver resilient, reliable solutions for the most demanding and constrained frontiers in existence. In the last year our engineers built a 2MW hydrogen fuel cell and battery powerplant to retrofit a three-story, 300-metric-ton-capacity diesel haul truck; designed the power source and refueling system for the world’s first endurance race vehicle to be powered by liquid hydrogen; and delivered spaceflight hardware headed 370 million kilometers from Earth to asteroid 16 Psyche. 

While each project is unique, we typically meld together robotics, automation, systems engineering, modeling and simulation, and advanced fabrication to create a new future across many industries. If you have exceptional talent and a vision for the future, we want to talk. 

First Mode is seeking to grow its skillset in gaseous and liquid hydrogen transfer and management systems. As a member of the technical staff with subject matter expertise in hydrogen systems, you will lead early-stage development, design, build, test, and deployment of hydrogen systems for heavy-duty industrial applications, including vehicle systems, bulk transport and refueling systems, and productions systems.  

Position Responsibilities

  • Architect and design liquid and gaseous hydrogen transfer and management systems for stationary and mobile applications 
  • Develop hydrogen system requirements and sub-system specifications, and engage with vendors to find solutions
  • Identify and pursue key areas of research and development necessary to meet system-level requirements 
  • Provide Hydrogen Systems subject matter expertise through generation of practices and principles and mentorship of staff 
  • Conduct hazard analysis (PHA, HAZOP, LOPA) and establish safety procedures
  • Lead and participate in system and hardware design reviews 
  • Lead subsystem verification and validation plans, including test and deployment campaigns
  • Work effectively in a fast-paced, dynamic team environment  
  • Travel within the United States and internationally to represent First Mode to its customers, vendors, and partners 

Basic Qualifications

  • Bachelor’s degree in Chemical, Mechanical, or related engineering discipline, or equivalent combination of education and experience
  • 5+ years of experience in the design and implementation of hydrogen gas transfer and management systems 

Preferred Qualifications

  • Experience with liquid hydrogen systems or other cryogenic systems
  • Familiarity with chemical process simulation software (HYSYS / UniSim) 
  • General programming language experience such as Python 
  • Experience developing process design bases and control narratives 
  • Familiarity with codes and standards common to industrial gas processes 
  • Ability to write and speak clearly about technical subject matter 
  • Flexibility and responsiveness in a fast-paced, dynamic, small team environment 


  • This position will be located at First Mode’s headquarters in Seattle, WA and will be required to work in office >60% of working hours


  • To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here. 

Benefits & Perks

  • Competitive compensation and bonus structure
  • 100% employer-paid health insurance (medical, dental, vision)
  • Flexible PTO with 12 week supplementary paid parental leave
  • 401(k) retirement account with a discretionary employer match
  • Commuter benefits (parking and public transportation)
  • A culture that encourages professional growth with learning and development reimbursements
  • Open and collaborative workspaces with free office snacks and lunches
  • Hybrid work model


First Mode is an Equal Opportunity Employer; employment with First Mode is governed on the basis of merit, competence, and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.