Principal Mechanical Engineer jobs in United States
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Amogy · 3 hours ago

Principal Mechanical Engineer

Amogy is an innovative cleantech startup on a mission to unlock ammonia's potential as a clean energy source. We are looking for a hands-on and highly technical Principal Mechanical Engineer to lead and execute research and development and commercially deployable projects from concept to scale-up.

Clean EnergyCleanTechEnergyRenewable EnergySustainability
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H1B Sponsor Likelynote

Responsibilities

Lead the development and optimization of mechanical structures and assemblies for ammonia cracking and separation systems
Spearhead designs from concept through launch, including detailed 3D modeling, material selection, stress analysis, design for manufacturing and assembly, equipment selection, and detailed design engineering drawing generation
Coordinate with cross functional teams, including FEA/CFD analysis and modeling, manufacturing, process, and testing teams, to complete project objectives
Own/track project schedules/budgets for internal teams and external suppliers
Establish, optimize, and maintain mechanical engineering design practices, frameworks, and best-practices and
Define and maintain mechanical requirements for various high temperature devices
Provide day-to-day technical mentorship and training for mechanical engineers, technologists, and technicians

Qualification

Mechanical EngineeringStructural AnalysisThermal AnalysisProject LeadershipFinite Element Analysis (FEA)Computer Aided Design (CAD)Geometric DimensioningTolerancing (GD&T)CommunicationOrganizational SkillsProblem Solving

Required

BS/MS in Mechanical Engineering with 10+ years of professional experience or PhD in Mechanical Engineering with 6+ years of professional experience in energy, aerospace, automotive, or related field
3+ years of prior experience in leading projects for technical teams
Deep understanding of structural and thermal analysis principles and fundamentals, parametric modeling, manufacturing methods, and the overall product development process
Prior experience designing and testing welded pressure vessels and heat transfer equipment and developing high-temperature systems such as reactors, engines, or turbines
Proven track record of excellence in Structural and thermal finite element analysis (FEA), applied to real world problems in aerospace, automotive, maritime, nuclear, or similar applications
Experience in applying standards and code to designs (e.g. ASMEJBPVC Sections 11 D, Ill. V, Vill Div 1 and 2; NFPA 86; ASTM. AWS). Proficiency/experience in all codes is not required
Proficiency in Geometric Dimensioning and Tolerancing (GD&T per AMSE Y 14.5 2018)
Proficiency in use of 2D/3D Computer Aided Design (CAD) modeling software packages (e.g. SolidWorks, CATIA, Inventor)
Previously taken one or more hardware products from concept to commercialization
Excellent organizational skills and proactivity in finding solutions to complex problems
Ability to work in a fast-paced environment
Excellent written and verbal communication skills and communicate timely updates to internal stakeholders

Preferred

MS in Mechanical Engineering with 12 years of professional experience or PhD in Mechanical Engineering with 8+ years of professional experience in energy, aerospace, automotive, or related field
Expertise in use of ABAQUS, SIMULIA, or ANSYS
5+ years of prior experience in leading projects or technical teams. Experience in optimizing thermal solutions for mechanical equipment subject to creep and fatigue
Working knowledge of combustion principles and catalytic process technology

Benefits

Competitive Medical, Dental & Vision Care
FSA and HSA
401(k) with 5% company match
Life insurance
Flexible (PTO)
Ancillary Benefits
Employee Assistance Program (EAP)
Open, supportive culture of drive and execution

Company

Amogy

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Amogy offers carbon-free energy solutions using ammonia cracking technology.

H1B Sponsorship

Amogy has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (13)
2024 (6)
2023 (7)
2022 (5)

Funding

Current Stage
Growth Stage
Total Funding
$313.3M
Key Investors
GS Engineering & ConstructionSK Innovation
2025-11-17Series Unknown· $15M
2025-07-15Series Unknown· $23M
2025-01-15Series Unknown· $56M

Leadership Team

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Seonghoon Woo
Chairman, CEO & Co-Founder
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Young Suk Jo
Chief Technology Officer
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Company data provided by crunchbase