Top 109 Nuclear engineering Jobs in Seattle Wa

System Transients Analysis Engineer
System One —Bellevue, WA
- $67 - $110 an hour
- Contract
- Hybrid work
- Mid-level
- Office
- Analysis skills
Quick Apply
Safety Analysis Engineer, Nuclear
System One —Bellevue, WA
- $69 - $115 an hour
- Contract
- Bachelor of Science
- Analysis skills
- Bachelor's degree
- Health insurance
- Dental insurance
Quick Apply
Requirements Management Engineer
System One —Bellevue, WA
- $52 - $85 an hour
- Contract
- 5 years
- Bachelor of Science
- Team management
- Health insurance
- Dental insurance
Quick Apply
Component Engineer, Nuclear
System One —Bellevue, WA
- $52 - $85 an hour
- Contract
- 5 years
- Travel
- Senior level
- Health insurance
- Dental insurance
Quick Apply
I&C Design Engineer
System One —Bellevue, WA
- $52 - $85 an hour
- 8 hour shift
- 5 years
- Bachelor of Science
- Ability to sit for extended periods
- Health insurance
- Dental insurance
Quick Apply
Mechanical Design Engineer (Contract)
Zeno Power —Seattle, WA
- $65 - $80 an hour
- Contract
- 5 years
- Engineering
- Office
Quick Apply
Structural Analysis Engineer
Talascend LLC —Bellevue, WA
- $54 - $90 an hour
- Contract
- Background check
- Bachelor of Science
- Pass drug screening
- Paid holidays
- Disability insurance
13d
Construction Oversight Engineer
System One —Bellevue, WA
- $84 - $135 an hour
- Contract
- Construction site
- Ability to walk for extended periods
- Engineering
Quick Apply
System Design Engineer
System One —Bellevue, WA
- $50 - $80 an hour
- Contract
- 5 years
- Office
- Analysis skills
Quick Apply
Senior Mechanical Engineer (Vessels)
System One —Bellevue, WA
- $69 - $115 an hour
- Contract
- Bachelor of Science
- Analysis skills
- Senior level
- Health insurance
- Dental insurance
Quick Apply
Senior Mechanical Engineer (Supports)
System One —Bellevue, WA
- $69 - $115 an hour
- Contract
- Bachelor of Science
- Writing skills
- 8 years
- Health insurance
- Dental insurance
Quick Apply
Core Thermal Hydraulics Engineer
System One —Bellevue, WA
- $69 - $115 an hour
- Contract
- Bachelor of Science
- Analysis skills
- Doctor of Philosophy
- Health insurance
- Dental insurance
Quick Apply
Component Design Engineer (RPA) – Contract
System One —Bellevue, WA
- $52 - $85 an hour
- Contract
- Bachelor of Science
- Mid-level
- Analysis skills
Quick Apply
I & C Human Factors Engineer
System One —Bellevue, WA
- $56 - $95 an hour
- Contract
- 5 years
- Doctor of Philosophy
- Senior level
Quick Apply
Senior Component Design Engineer (RPA) – Contract
System One —Bellevue, WA
- $56 - $95 an hour
- Contract
- Bachelor of Science
- Analysis skills
- Continuous improvement
- Health insurance
- Dental insurance
Quick Apply
Senior Safety Methods Engineer
System One —Bellevue, WA
- $37 - $74 an hour
- Contract
- 3 years
- Analysis skills
- In-person
- Health insurance
- Dental insurance
Quick Apply
9d
I&C V&V Design Engineer
System One —Bellevue, WA
- $67 - $110 an hour
- Contract
- Bachelor of Science
- Mentoring
- Budgeting
- Health insurance
- Dental insurance
Quick Apply
Senior Nuclear Safety Analysis Engineer
System One —Bellevue, WA
- $69 - $115 an hour
- Contract
- Bachelor of Science
- Engineering
- Analysis skills
- Paid holidays
- Health insurance
Quick Apply
System Design Engineer
System One —Bellevue, WA
- Contract
- Analysis skills
- Senior level
- Communication skills
- Health insurance
- Dental insurance
Quick Apply
Senior Structural Analyst
System One —Bellevue, WA
- $54 - $90 an hour
- Contract
- Bachelor of Science
- 8 years
- Analysis skills
- Health insurance
- Dental insurance
Quick Apply

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nuclear engineering jobs near seattle wa

System Transients Analysis Engineer

System One -
Bellevue, WA

Quick Apply

Job Details

Contract
$67 - $110 an hour

Qualifications

Thermal analysis
Fluid dynamics
Content creation for technical audiences
Computational fluid dynamics (CFD)
Technical documentation
Computational modeling
Thermal hydraulics
Simulation analysis
Technical writing within technology

Full Job Description

Job Title: System Transients Analysis Engineer
Location: Bellevue, WA
Job Type: Contract
Work Model: Hybrid/Onsite Preferred

Overview

System One is seeking a highly capable and motivated System Transients Analysis Engineer to support an advanced sodium-cooled reactor program. This role will focus on thermal hydraulic and transient analysis activities supporting advanced reactor system design, plant operations analysis, and control system integration.

The ideal candidate will have strong experience with system analysis codes such as RELAP5 or TRACE, along with a strong foundation in thermal hydraulics, heat transfer, fluid dynamics, and nuclear plant transient analysis.

Responsibilities

Develop RELAP5-3D models for steady-state and transient one-dimensional hydraulic network analyses
Perform reactor and plant transient analyses for normal operations, upset conditions, emergency events, and faulted scenarios
Develop plant-level control strategies and component-level controllers
Perform calculations using first principles of heat transfer, thermodynamics, and fluid dynamics to validate analytical results
Support evaluation of plant-wide transients, operational narratives, and design solutions
Perform multiscale and multidisciplinary thermal hydraulic analyses involving sodium, molten salt, and non-condensable fluids
Collaborate closely with safety, I&C, design engineering, and testing teams
Support development of new analytical methods and advanced modeling techniques
Prepare technical reports, calculations, and engineering documentation

Required Qualifications

Bachelor’s degree or higher in Nuclear Engineering, Mechanical Engineering, Electrical Engineering, or related discipline
Strong experience with thermal hydraulic system codes such as RELAP5 and/or TRACE
Strong analytical background in:
- Thermal hydraulics
- Fluid dynamics
- Heat transfer
- Transient analysis
- One-dimensional hydraulic network modeling
Strong technical writing and communication skills
Ability to work effectively in a collaborative, fast-paced engineering environment
High level of professionalism, integrity, and teamwork

Preferred Qualifications

Experience with ASME component design and analysis
Experience modeling control systems and Instrumentation & Controls (I&C)
Experience supporting nuclear power plant design or operations
Experience developing new analytical methods
Advanced reactor or sodium-cooled reactor experience

Physical & Work Environment Requirements

Ability to sit and/or stand for extended periods
Minimal lifting requirements up to 25 pounds
Prolonged computer and keyboard work
Standard office or engineering work environment
Occasional travel up to 5%

Additional Information

This position may require compliance with U.S. export control regulations. Applicants may be asked to provide information regarding citizenship or work authorization status as part of the hiring process.

Ref: #161-Managed Staffing Charlotte

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Refine Your Search

nuclear engineering jobs in seattle wa

System Transients Analysis Engineer

Safety Analysis Engineer, Nuclear

Requirements Management Engineer

Component Engineer, Nuclear

I&C Design Engineer

Mechanical Design Engineer (Contract)

Structural Analysis Engineer

Construction Oversight Engineer

System Design Engineer

Senior Mechanical Engineer (Vessels)

Senior Mechanical Engineer (Supports)

Core Thermal Hydraulics Engineer

Component Design Engineer (RPA) – Contract

I & C Human Factors Engineer

Senior Component Design Engineer (RPA) – Contract

Senior Safety Methods Engineer

I&C V&V Design Engineer

Senior Nuclear Safety Analysis Engineer

System Design Engineer

Senior Structural Analyst

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