Top 1378 Systems Engineer Iii Jobs

Nuclear Engineer III/IV (Structures)
Fissionaire —Madison, WI
- Full-time
- Background check
- Master's degree
- Analysis skills
- Health insurance
- Dental insurance
Quick Apply
7d
Nuclear Engineer III/IV Instrumentation and Control (I&C) Lead
Fissionaire —Madison, WI
- $150,000 - $185,000 a year
- Full-time
- Background check
- Engineering
- System design
- Relocation assistance
- Paid time off
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Electrical Engineer III
Holtec —Camden, NJ
- $120,000 - $140,000 a year
- Hybrid work
- 6 years
- Bachelor of Science
- Engineering
- Wellness program
- Commuter assistance
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Sr Industrial Engineer III
Raytheon —Tucson, AZ
- $86,800 - $165,200 a year
- Full-time
- Data analysis skills
- Analysis skills
- Senior level
- Paid holidays
- Disability insurance
Network Engineer III
E Logic —Missoula, MT
- From $80,000 a year
- Contract
- Senior level
Quick Apply
IT System Analyst - must have 3 yrs Biz Net Sec, 3 yrs Linux Server Engineering
The Marker Group —Houston, TX
- $70,000 - $90,000 a year
- Weekends as needed
- Background check
- 5 years
- High school diploma or GED
- Health insurance
- Dental insurance
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Systems Engineer III, Los Angeles (On-Site/Hybrid)
O'Neil Digital Solutions —Los Angeles, CA
- $115,000 - $130,000 a year
- Full-time
- Hybrid work
- Azure
- 5 years
- Research
- Health savings account
- Health insurance
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Modeling and Simulation Engineer - Level 2 or 3
Northrop Grumman —Huntsville, AL
- $87,600 - $163,200 a year
- Overtime
- Software troubleshooting
- Mid-level
- Java
- Paid holidays
- Disability insurance
Network Engineer III
Leidos —Scott AFB, IL
- $73,450 - $132,775 a year
- Full-time
- Microsoft Outlook
- Mid-level
- Bachelor's degree
Senior Systems Engineer / Level 3 Generalist
Wolff Logics —Cedar Park, TX
- $90,000 - $110,000 a year
- Full-time
- Hybrid work
- 7 years
- HIPAA
- Windows
- Health insurance
- Dental insurance
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System Engineer 3
General Dynamics Information Technology —Annapolis Junction, MD
- $193,800 - $262,200 a year
- Hybrid work
- Bachelor of Science
- System design
- 11+ years
- Paid time off
- 401(k) matching
Software Engineer III
General Dynamics Information Technology —Annapolis Junction, MD
- $214,776 - $290,580 a year
- Computer Science
- Software troubleshooting
- Research
- Paid holidays
- 401(k) matching
Sentinel IFC Manager Systems Engineering Manager 3 - 18540
Northrop Grumman —Roy, UT
- $166,700 - $276,500 a year
- Overtime
- Office
- Master's degree
- 8 years
- Paid holidays
- Disability insurance
Network Engineer III
Leidos —Bluemont, VA
- $131,300 - $237,350 a year
- Full-time
- Azure
- System design
- Office
Modeling & Simulation Systems Engineer (Kinematic) - Level 2 or 3
Northrop Grumman —Colorado Springs, CO
- $83,400 - $155,400 a year
- Overtime
- Hybrid work
- Bachelor of Science
- Research
- Math
- Paid holidays
- Disability insurance
Sentinel Command Systems Node Integration Manager 3 - 18150
Northrop Grumman —Manhattan Beach, CA
- $166,700 - $289,600 a year
- Overtime
- 3 years
- Master's degree
- Supervising experience
- Paid holidays
- Disability insurance
Reliability Systems Engineer - Level 3
Northrop Grumman —Redondo Beach, CA
- $114,000 - $171,000 a year
- Overtime
- Microsoft Word
- Microsoft Excel
- Analysis skills
- Paid holidays
- Disability insurance
Sentinel Mission Equipment Complex (MEC) – Zone Lead Manager 3 - 18963
Northrop Grumman —Roy, UT
- $166,700 - $250,100 a year
- Overtime
- 6 years
- Master's degree
- Continuous improvement
- Paid holidays
- Disability insurance
Systems Engineer II-III
National Radio Astronomy Observatory —Charlottesville, VA
- $87,390 - $120,837 a year
- Email
- Computer Science
- US work authorization
- Senior level
- Paid holidays
- Health insurance
3d
Kinematics Modeling & Simulation Systems Engineer - Level 2 or 3
Northrop Grumman —Colorado Springs, CO
- $83,400 - $155,400 a year
- Overtime
- Hybrid work
- Bachelor of Science
- Mid-level
- Windows
- Paid holidays
- Disability insurance

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Nuclear Engineer III/IV (Structures)

Fissionaire
Madison, WI

Quick Apply

Job Details

Full-time
7 days ago

Benefits

Health insurance
Dental insurance
Paid time off
Vision insurance
Life insurance

Qualifications

Version control
Mechanical blueprint interpretation
Nuclear engineering design codes and standards
Mechanical Engineering
Master's degree
Mechanical drawings
Bachelor's degree
ASME codes & standards
Blueprint creation using CAD software
FEA
Nuclear Engineering
Structural systems
CAD revision management

Full Job Description

Position Title: Structures Engineer
Location: Madison, WI

About Us We’re pioneering the next generation of nuclear technology to deliver safe, scalable, and sustainable energy. Our team is small, fast-moving, and mission-driven —combining deep technical expertise with a startup’s sense of urgency. As we grow, we’re designing systems that will redefine what nuclear power can do for the world.

About the role Fissionaire is building the next generation of nuclear technologies, and this role is responsible for turning ideas into parts. You’ll own the design and structural analysis of reactor and support system parts, support multidisciplinary engineering teams, and ensure designs meet up with nuclear-grade expectations. If you thrive in high-accountability environments and want your work to directly shape future nuclear systems, this is where you’ll make an impact.

Key Responsibilities

● Develop detailed CAD models for nuclear system components, mechanical assemblies, piping, shielding, and structural elements.

● Develop structural loads in coordination with other engineering teams

● Analyze and size components, assemblies and systems based on developed loads using industry standards, engineering calculations and FEM.

● Develop and implement analysis methods that to include static, cyclic and thermal loads.

● Support design, development and execution of structural and hydraulic tests.

● Create analysis reports to support reactor licensing per business standards.

● Coordinate across disciplines to ensure all loads and design constraints are fully understood and captured.

● Maintain configuration control, analysis standards, revision logs, and documentation in accordance with nuclear QA frameworks (e.g., ASME NQA-1, ANSI/ANS standards).

● Support design reviews by preparing designs, analysis, interface checks, and tolerance analyses.

● Collaborate closely with other mechanical, nuclear, thermal-hydraulic, and systems engineers to refine concepts, resolve design issues, and ensure alignment across disciplines.

● Assist in vendor interface by providing clear specifications, answering technical queries, and updating designs/analysis as needed.

● Contribute to continuous improvement of design and analysis workflows, libraries, and standards.

● Willing to relocate to Madison, WI

Qualifications

● Bachelor’s or Masters degree in Mechanical, Nuclear, Aerospace or related field and 10+ years experience in structures design and analysis roles.

● Proficiency with modern CAD tools (e.g., SolidWorks, Inventor, Creo, AutoCAD, or similar).

● Experience with high temperature structural design and analysis.

● Expertise in common structural analysis software (ANSYS, NASTRAN, FEMAP etc)

● Experience applying nuclear-industry standards (ASME, ASTM, RCC-MRx, etc.).

● Ability to read, interpret, and develop engineering drawings.

● Detail-driven mindset with a disciplined approach to documentation and version control.

● US Citizenship, or Permanent Resident status required.

Preferred Qualifications

● Experience in reactor design, radiation shielding, balance-of-plant systems, or nuclear fuel cycle equipment.

● Familiarity with PLM/PDM systems (Windchill, Teamcenter, etc.).

● Background in piping design, pressure vessel design, or seismic qualification and fatigue spectrum development.

● Exposure to manufacturing processes, suppliers, and tolerancing best practices in regulated environments.

What Success Looks Like

● Development and analysis of reactor structures designs that meet business timelines , objectives and quality standards.

● Use of creative problem solving to find ways to accelerate development while maintaining quality standards and design objectives.

● You communicate clearly and communicate effectively, to maintain coordination across the IPT.

● You take ownership of your work and help push Fissionaire’s designs forward with confidence and precision.

Fissionaire’s technology is subject to U.S. export control regulations, which require the company to review applicants’ eligibility based on their citizenship or residency status. As part of the application process, candidates will be asked to indicate whether they are a U.S. citizen, or permanent resident to support this review. Because government authorization timelines can vary, Fissionaire is unable to consider alternate resident statuses where required approvals may not be obtainable within a timeframe that meets business needs.

What We Offer

Competitive salary with equity options
Comprehensive benefits, holiday and PTO schedule
Opportunity to work with a groundbreaking nuclear startup

Fissionaire is an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, colour, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, pregnancy-related conditions, and lactation), gender identity or expression (including transgender status), sexual orientation, marital status, family or relationship structure, military service and veteran status, physical or mental disability, genetic information, gender identity, or any other characteristic protected by applicable federal, state, or local laws and ordinances. Fissionaire’s management team is dedicated to this policy with respect to recruitment, hiring, placement, promotion, transfer, training, compensation, benefits, employee activities, access to facilities and programs, and general treatment during employment.

Benefits:

Dental insurance
Health insurance
Life insurance
Paid time off
Vision insurance

Education:

Bachelor's (Required)

Work Location: In person

Quick Apply

Refine Your Search

Systems Engineer Iii jobs

Nuclear Engineer III/IV (Structures)

Nuclear Engineer III/IV Instrumentation and Control (I&C) Lead

Electrical Engineer III

Sr Industrial Engineer III

Network Engineer III

IT System Analyst - must have 3 yrs Biz Net Sec, 3 yrs Linux Server Engineering

Systems Engineer III, Los Angeles (On-Site/Hybrid)

Modeling and Simulation Engineer - Level 2 or 3

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Senior Systems Engineer / Level 3 Generalist

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Software Engineer III

Sentinel IFC Manager Systems Engineering Manager 3 - 18540

Network Engineer III

Modeling & Simulation Systems Engineer (Kinematic) - Level 2 or 3

Sentinel Command Systems Node Integration Manager 3 - 18150

Reliability Systems Engineer - Level 3

Sentinel Mission Equipment Complex (MEC) – Zone Lead Manager 3 - 18963

Systems Engineer II-III

Kinematics Modeling & Simulation Systems Engineer - Level 2 or 3

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