Oklo Inc · 7 hours ago
Core Mechanical Design - Senior Mechanical Design Engineer
United States
Full-time
Remote
Mid, Senior Level
$115K/yr - $170K/yr
5+ years expOklo is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale. They are seeking a Senior Mechanical Design Engineer responsible for designing core assemblies and components for advanced reactors, collaborating closely with the Fuel Fabrication team to refine designs for manufacturability and inspectability.
Clean EnergyEnergyManufacturingNuclearRenewable Energy
Responsibilities
Develop the design of these components to satisfy both performance and manufacturing requirements
Create and develop design documentation to define requirements
Conduct and participate in design reviews, providing and receiving technical feedback
Rigorously evaluate mechanical designs to identify deficiencies and proactively propose and implement solutions
Generate and maintain detailed 3D CAD models, 2D drawings, and bills of materials using controlled processes in PDM/PLM systems
Coordinate closely with analysis teams to guide and interpret thermal, structural, fatigue, and safety analyses in support of design validation
Perform detailed manufacturability reviews, tolerance studies, and DFM/DFA assessments to prepare components for fabrication and assembly
Contribute to continuous improvement of Oklo’s mechanical design processes, tools, and standards through feedback and development of best practices
Qualification
Required
5-10 years of industry experience in mechanical or structural design within sectors such as aerospace, automotive, energy, or industrial equipment
Bachelor's or higher degree in Mechanical Engineering or a related engineering discipline
Proficiency in 3D CAD modeling software (e.g., Siemens NX, CATIA, SolidWorks), including part modeling, large assemblies, and detailed drawings
Experience with CAD version control using PDM/PLM tools (e.g., Teamcenter, SolidWorks PDM, Windchill)
Solid understanding of mechanical design principles, including DFM (Design for Manufacturability), DFA (Design for Assembly), and tolerance stack-up analysis
Ability to apply GD&T per ASME Y14.5-2018 (or other similar standard) to engineering drawings
Working knowledge of material selection (particularly metals), manufacturing methods, and fabrication techniques
Demonstrated ability to collaborate on cross-functional teams, integrating feedback from analysis, manufacturing, and systems engineering
Strong written and verbal communication skills, with the ability to clearly document and present engineering work
Comfortable working with external manufacturers and engineering consultants for fabrication and analysis support
Preferred
Background in designing components for high-integrity or safety-critical systems (e.g., nuclear, aerospace, defense, or heavy industry)
Proven ability to lead hardware projects through the full development cycle—from concept and design to testing and production
Comfortable working with manufacturers and engineering consultants for fabrication and analysis support
Knowledge of manufacturing and inspection processes
Experience with precision machine design and tolerancing
Understanding of thermal-mechanical analysis principles, with experience designing for high-temperature environments
Basic knowledge of nuclear fission and radiation effects on materials and components
Exposure to simulation tools (e.g., ANSYS) and scripting languages (e.g., Python) is a plus
ASME GD&T Professional certification (Senior or Technologist Level) is a plus
Proficiency with Siemens NX CAD software if a plus
Benefits
Flexible time off
Equity
Competitive pay
401k
Health insurance
FSA
Flexible work hours
Other benefits
Company
Oklo Inc
Oklo's mission is to provide clean, reliable, affordable energy through the deployment of next-generation fast fission technology and recycling nuclear waste.
51-200 employees
Funding
Current Stage
Public CompanyTotal Funding
$440.6M2025-06-12Post Ipo Equity· $440.6M
2024-05-09IPO
2021-11-15Series Unknown
Leadership Team
Jacob DeWitte
CEO and Co-Founder
Craig Bealmear
Chief Financial Officer
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