Senior Mechanical Engineer

Oklo Inc

. Serve as Oklo's technical expert for high-temperature piping, pressure vessels, pressure boundaries, and supporting components within the Oak Ridge Fuel Recycling Facility .

Posted 9/16/2026full-timeSanta Clara • California • United StatesSenior💰 $175,000 - $210,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in mechanical engineering with a focus on high-temperature piping and pressure vessel design, including compliance with ASME codes and standards. Proficient in performing stress analyses, materials selection, and coordinating complex engineering interfaces.

Highest-signal resume keywords

Mechanical Engineering Degree10+ Years Mechanical Engineering ExperienceASME Code CompliancePiping Stress AnalysisMaterials Selection for High-Temperature Systems

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Piping Stress AnalysisPressure Vessel DesignThermal Expansion AnalysisFatigue and Creep EvaluationDesign-by-AnalysisWelding and FabricationNondestructive ExaminationPressure TestingTechnical WritingEngineering Judgment

Soft Skills

Strong CommunicationTechnical LeadershipMentoring Engineers

Tools & Technologies

CAESAR IIAutoPIPEANSYSAbaqusCOMPRESSPV EliteMathcad

Industry Keywords

High-Temperature SystemsNuclear Quality AssuranceMolten-Salt SystemsCorrosion-Resistant AlloysSeismic Qualification

Tech Stack

Tools & technologies

SaltStack

About the role

Key responsibilities & impact

Serve as Oklo's technical expert for high-temperature piping, pressure vessels, pressure boundaries, and supporting components within the Oak Ridge Fuel Recycling Facility
Translate process conditions and operating scenarios into design bases, applicable codes, load combinations, service life, and acceptance criteria
Perform and review piping stress, flexibility, pressure vessel, thermal, fatigue, creep, buckling, seismic, and design-by-analysis evaluations
Select and qualify materials for high-temperature and corrosive service, including molten-salt compatibility and fabrication constraints
Design and review vessels, piping, nozzles, flanges, closures, transitions, supports, anchors, restraints, expansion joints, bellows, penetrations, and pressure-boundary components
Define piping layout, supports, restraints, slopes, drainability, isolation, inspection, and access requirements
Coordinate interfaces with process equipment, hot-cell penetrations, confinement boundaries, structures, utilities, instrumentation, controls, and remote-maintenance systems
Develop and review calculations, specifications, piping material classes, line lists, vessel data sheets, drawings, fabrication details, and technical requirements
Review supplier and subcontractor calculations, models, drawings, material selections, weld details, fabrication procedures, and inspection plans
Establish fabrication and quality requirements covering traceability, welding, heat treatment, dimensional control, nondestructive examination, pressure testing, leak testing, and final acceptance
Develop procurement specifications, statements of work, technical bid evaluations, and supplier acceptance criteria
Provide piping and vessel input to design reviews, failure-mode and constructability evaluations, engineering changes, supplier deviations, nonconformances, requests for information, and field changes
Support commissioning, troubleshooting, and root-cause evaluations
Mentor engineers and provide technical leadership
Own mechanical design basis, analysis, code compliance, and technical interfaces from early design through fabrication, testing, installation, commissioning, and operational support

Requirements

What you’ll need

Bachelor's degree in Mechanical Engineering or a related engineering discipline
10+ years of mechanical engineering experience with process piping, pressure vessels, or high-temperature systems, including responsibility for piping stress, pressure vessel, thermal, or mechanical stress analyses
Working knowledge of applicable ASME codes and standards, including ASME B31.3 and ASME Boiler and Pressure Vessel Code Section VIII
Strong understanding of thermal expansion, fatigue, creep, buckling, nozzle loads, pipe supports, pressure boundaries, and elevated-temperature material behavior
Experience developing and reviewing calculations, specifications, data sheets, drawings, and fabrication-ready design packages
Experience with materials selection, welding, fabrication, nondestructive examination, pressure testing, and inspection of piping or vessels
Ability to independently evaluate analytical results, code compliance, design assumptions, failure modes, and technical margins
Experience coordinating piping and vessel interfaces with process, structural, equipment, instrumentation and controls, operations, and supplier teams
Strong technical writing, communication, and engineering judgment
Eligibility to work in the United States without sponsorship
Experience with molten-salt, inert-gas, vacuum, nuclear hot-cell, or fuel-cycle systems and elevated-temperature or corrosion-resistant alloys is a bonus qualification
Experience with ASME Section VIII Division 2, design-by-analysis, fatigue, buckling, creep, seismic qualification, or coupled thermal-mechanical analysis is a bonus qualification
Experience with CAESAR II, AutoPIPE, ANSYS, Abaqus, COMPRESS, PV Elite, Mathcad, or similar software is a bonus qualification
Experience overseeing piping or vessel fabrication, supplier quality, weld qualification, nondestructive examination, and acceptance testing under nuclear quality assurance and design control processes is a bonus qualification

Benefits

Comp & perks

Flexible time off
Equity
Bonuses
Competitive pay
401(k)
Health insurance with employer contribution
HSA
FSA
Flexible work hours
Wellness credits
Other benefits