Job Description

Senior Mechanical Design Engineer

Modern Hydrogen

Bothell, WA - Full Time – Onsite

Modern Hydrogen is seeking a Senior Mechanical Design Engineer to join our Engineering team based in Woodinville. The ideal candidate is mission-driven and excited to contribute to a fast-paced, cleantech company focused on decarbonizing the energy system. This role requires a demonstrated commitment to excellence, a mindset of constant improvement, a strong sense of ownership, and the ability to fail well and adapt quickly. The successful candidate values time, works with urgency, embraces effective teamwork, and thrives in a culture that prioritizes safety.

As a Senior Mechanical Design Engineer, you are passionate about making concepts a reality while iterating on existing solutions. You will do this by leading the development of chemical reactor system designs and configurations for new parts and assemblies that meet technical performance, reliability & safety, cost, and schedule specifications. Your goal is to optimize and iterate quickly to support the development and evolution of our technology. In line with our values, you will also mentor associate and early career engineers.

Responsibilities:

• Design, evaluate, and analyze our next generation hydrogen generators
• Develop reactor systems, subsystems, and component specifications
• Create thermal-mechanical designs of devices and components from lab to pilot scale for high temperature applications
• Perform first order hand calculations and use FEA to model device and component performance, including steady-state and transient heat transfer and thermal-mechanical stress analysis, and reliability assessment
• Perform tolerance analysis and specify GD&T requirements to ensure intended assembly performance
• Lead development of device assembly strategies, methods, and associated processes and coordinate complex assembly builds
• Create CAD drawings/models for components, subsystems, and assemblies and document calculations, assumptions, and validation testing and analysis
• Interface closely with multidisciplinary experimental and computational teammates to iterate on designs and test/validate models/designs
• Mentor junior mechanical engineers on design, drawing and modeling studies
• <10% travel required to visit and qualify suppliers
• Other duties as assigned

Supervisory Responsibilities: None.

Skills and Experience:

• 10+ years of thermal mechanical design engineering experience in an industrial and/or commercial environment
• 5+ years of experience in the design and analysis of high temperature or harsh environment machine design.
• Hands-on experience using CAD tools (SolidWorks preferred) in the creation of complex mechanical models, mechanical drawings, and assembly drawings
• Demonstrated hands-on experience with thermal-mechanical FEA using analysis tools such as ANSYS Workbench
• Familiarity with Geometric Dimensioning and Tolerancing (GD&T) and its application toward the creation of fabrication drawings for mechanical parts
• Experience with large scale assemblies
• Hands-on experience with assembling mechanical systems

You are encouraged to apply even if you don't have all the typical qualifications. Modern Hydrogen values diverse experiences, backgrounds and ideas, and we know diversity of thought contributes to our success. We encourage all interested candidates to apply.

Working conditions:

To facilitate efficient & effective onboarding, you will be expected to be on-site 4+ days per week for the first 90 days to build trust, learn our processes, and integrate into our company culture. After 90 days, you will be expected to be on-site 4+ days per week.

About Us:

Modern Hydrogen is an energy & materials company. Our proprietary methane pyrolysis technology converts natural gas into high-value hydrogen while producing solid carbon for asphalt, which is used to strengthen roads. By producing hydrogen at the point of use, Modern Hydrogen helps utilities & industry extend the value of their existing energy infrastructure and reduce emissions, all the while maintaining energy security and affordability. Backed by top investors and customers like Bill Gates, NextEra Energy, and National Grid, Modern Hydrogen is redefining how natural gas resources can become more valuable and sustainable in and beyond the energy industry.

What We Offer:

Modern Hydrogen offers a comprehensive total rewards package designed to support the well-being of our employees and their families:

• Pay Range : $110,000 - $160,000/year. * Final compensation may vary based on location, relevant experience, skills, education, certifications, etc.
• Equity : Company ownership through incentive stock options (ISOs).
• Retirement Savings : SIMPLE IRA plan with a 3% company match.
• Employee Health Coverage : $15 PPO or HSA medical, dental and vision plan through Premera, with an optional upgrade to advanced vision coverage with VSP.
• Dependent Health Coverage : 50% company-paid.
• Optional Health Savings: Health Care and Dependent Care Flexible Spending Accounts (FSA) or Health Savings Account (HSA) for eligible medical plans.
• Life and AD&D Insurance : Company paid $100,000 benefit with an option to purchase supplemental coverage.
• Employee Assistance Program (EAP): Confidential support for mental health, wellness, and life planning.
• Paid Time Off: Flexible Time Off (FTO) and 8 company-paid holidays.
• Paid Parental Leave : Paid time away to welcome a new family member.
• Professional Development : Annual budget for learning and growth opportunities (manager approval required).
• Immigration Sponsorship and Relocation Support : May be offered for exceptional talent based on role and business needs.
• Additional perks : A dog-friendly office, a fully stocked breakroom, regular team lunches, and more!

Modern Hydrogen is an equal opportunity employer committed to building an inclusive and diverse workforce. The company does not discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, veteran status, or any other status protected by applicable federal, state, or local law. Modern Hydrogen encourages individuals from all backgrounds, including those from underrepresented communities in the energy and technology sectors, to apply. Applicants requiring assistance or accommodation due to a disability may contact [email protected] to ensure the application process is accessible.

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