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Nuclear Systems Engineer Jobs in Colorado (NOW HIRING)

Nuclear Engineer

Norwood, CO · On-site

$94K - $113K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Lafayette, CO · On-site

$102K - $122K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Dolores, CO · On-site

$100K - $119K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Holly, CO · On-site

$99K - $119K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Lyons, CO · On-site

$97K - $117K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Springfield, CO · On-site

$96K - $115K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Louisville, CO · On-site

$102K - $123K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Erie, CO · On-site

$98K - $117K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Akron, CO · On-site

$89K - $106K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Alamosa, CO · On-site

$88K - $106K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Empire, CO · On-site

$103K - $123K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Eaton, CO · On-site

$97K - $116K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Evergreen, CO · On-site

$97K - $117K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Timnath, CO · On-site

$95K - $114K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Arvada, CO · On-site

$100K - $120K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Fruita, CO · On-site

$97K - $117K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Nuclear Engineer

Firestone, CO · On-site

$105K - $126K/yr

Job Title: Nuclear Engineer (Naval Reactors Engineer) Category / Component: Officer • Active ... Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design ...

Showing results 21-40

Nuclear Systems Engineer information

See Colorado salary details

$27.3K

$111K

$157.7K

How much do nuclear systems engineer jobs pay per year?

As of Sep 5, 2026, the average yearly pay for nuclear systems engineer in Colorado is $111,034.00, according to ZipRecruiter salary data. Most workers in this role earn between $103,600.00 and $124,100.00 per year, depending on experience, location, and employer.

What does a nuclear systems engineer do?

A Nuclear Systems Engineer is responsible for designing, developing, operating, and maintaining nuclear systems and equipment, such as reactors, power plants, and nuclear fuel cycles. They ensure that these systems operate safely, efficiently, and within regulatory standards. Their work often involves analyzing system performance, troubleshooting issues, implementing safety protocols, and working closely with other engineers and regulatory agencies. Nuclear Systems Engineers play a critical role in both energy production and the safe management of nuclear materials.

What are the key skills and qualifications needed to thrive as a nuclear systems engineer, and why are they important?

To thrive as a Nuclear Systems Engineer, you need a strong background in nuclear engineering principles, physics, and mathematics, typically supported by a relevant engineering degree. Familiarity with industry-standard simulation software, safety analysis tools, and certifications like Fundamentals of Engineering (FE) or Professional Engineer (PE) are often required. Exceptional problem-solving, attention to detail, and strong communication skills help you effectively collaborate with multidisciplinary teams and ensure regulatory compliance. These skills and qualifications are crucial for maintaining safety, efficiency, and reliability in complex nuclear systems.

What are some common collaboration points between nuclear systems engineers and other departments within a nuclear facility?

Nuclear Systems Engineers frequently work alongside operations, maintenance, and safety teams to ensure the reliable and safe performance of nuclear systems. They often collaborate with reactor operators to troubleshoot system anomalies, coordinate with safety analysts to verify compliance with regulations, and work with maintenance staff during planned outages or upgrades. This cross-functional teamwork is essential for optimizing plant performance, addressing technical challenges, and ensuring all systems adhere to strict safety standards. Strong communication and documentation skills are therefore highly valued in this role.

What is the difference between Nuclear Systems Engineer vs Nuclear Reactor Operator?

AspectNuclear Systems EngineerNuclear Reactor Operator
CredentialsEngineering degree, certifications in nuclear engineeringReactor operator license, training certifications
Work EnvironmentDesign, develop, and maintain nuclear systems in labs or plantsOperate and monitor nuclear reactors in power plants
Industry UsageUsed in engineering firms, research facilities, and power plantsPrimarily employed in nuclear power plants

While both roles work within the nuclear industry, Nuclear Systems Engineers focus on designing and maintaining nuclear systems, whereas Nuclear Reactor Operators are responsible for the day-to-day operation and safety of nuclear reactors. Their credentials, work environments, and industry applications differ, but both are essential for nuclear plant safety and efficiency.

What are popular job titles related to Nuclear Systems Engineer jobs in Colorado?

For Nuclear Systems Engineer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Nuclear Systems Engineer jobs in Colorado look for?

The top searched job categories for Nuclear Systems Engineer jobs in Colorado are:

Infographic showing various Nuclear Systems Engineer job openings in Colorado as of August 2026, with employment types broken down into 96% Full Time, and 4% Part Time. Highlights an 87% In-person, 7% Hybrid, and 6% Remote job distribution, with an average salary of $111,034 per year, or $53.4 per hour.

Sentinel - Principal/Sr. Principal Systems Engineer - 18439*

Northrop Grumman Corporation

Colorado Springs, CO • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 18 days ago


Northrop Grumman rating

8.3

Company rating: 8.3 out of 10

Based on 368 frontline employees who took The Breakroom Quiz

67th of 545 rated manufacturers


Job description

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SecretTRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

Join Northrop Grumman on our continued mission to push the boundaries of possible across land, sea, air, space, and cyberspace. Enjoy a culture where your voice is valued and start contributing to our team of passionate professionals providing real-life solutions to our world's biggest challenges. We take pride in creating purposeful work and allowing our employees to grow and achieve their goals every day by Defining Possible. With our competitive pay and comprehensive benefits, we have the right opportunities to fit your life and launch your career today.

Northrop Grumman Defense Systems is seeking a Principal Systems Engineer (Level 3)/ Sr. Principal Systems Engineer (Level 4) in support of the Sentinel program.This opening may be in Roy, UT, Bellevue, NE, Manhattan Beach, CA, Colorado Springs, CO or Huntsville, AL and will support the Sentinel Program. Northrop Grumman supports the Air Force's sustainment, development, production and deployment of hardware and system modifications for Intercontinental Ballistic Missile (ICBM) Ground and Airborne Launch Control Systems, Launch Facilities, and associated infrastructure.

What you will get to do:

The Sentinel program has an exciting opportunity for a Principal Systems Engineer/Sr. Principal Systems Engineer to join the team supporting activities including use case development, requirements definition / allocation, functional decomposition, interface definition, verification & validation, and requirements traceability.

Specific duties to include, but are not limited to the following:

  • Collaborate with program IPT counterparts to develop supporting systems engineering and design artifacts.
  • Work with both technical teams and stakeholders to develop and mature architecture content of large programs design.
  • Help develop and incorporate the appropriate requirements for the system and ensure that they are properly represented in the model.
  • Develop systems architecture using Cameo Enterprise Architecture (behavioral, structural, analytical).
  • Contribute to system requirements development, management, and analysis.
  • Develop unifying model techniques, procedures, and processes (for model development, tool integration, and team integration).

This position may be hired at the Principal Systems Engineer or Sr. Principal Systems Engineer levels depending upon applicant qualifications.

Basic Qualifications:

Principal Systems Engineer:

  • Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline and 5 years of experience with Bachelor's degree, 3 years of experience with Master's degree, 0 years of experience with PhD
  • Must be a US Citizen with an active DoD Secret Clearance with an investigation date within the last 6 years
  • Must be able to be successfully screened for Enhanced Security Clearances, within a reasonable amount of time as determined by the company to meet its business needs
  • 1+ years of experience with requirements management/analysis/allocations OR Equivalent Graduate Certificate (e.g., CalTech SE Fundamentals)
  • 1+ years of experience with Model-Based Engineering / Model-Based Systems Engineering (MBE/MBSE) practices, languages and/or tools such as Cameo, Rhapsody or MagicDRAW OR Equivalent Graduate Certificate (e.g., CalTech MBSE)
  • 1+ years of experience with one or more of the following: C2, physical security, cybersecurity, Nuclear Command, Control, and Communications (NC3) systems/processes, communications systems, facility design, military aerospace development (e.g. Sentinel, Minute Man III, B-2, B-21 delivery systems)
  • Self-driven, able to tackle challenges, solve problems with minimal oversight and make recommendations for solutions/process improvement to leadership
  • Strong written and verbal communication skills

Sr. Principal Systems Engineer:

  • Bachelor's degree in a Science, Technology, Engineering or Mathematics (STEM) discipline and 8 years of experience with Bachelor's degree, 6 years of experience with Master's degree, 4 years of experience with PhD
  • Must be a US Citizen with an active DoD Secret Clearance with an investigation date within the last 6 years
  • Must be able to be successfully screened for Enhanced Security Clearances, within a reasonable amount of time as determined by the company to meet its business needs
  • 2+ years of experience with requirements management/analysis/allocations
  • 2+ years of experience with Model-Based Engineering / Model-Based Systems Engineering (MBE/MBSE) practices, languages and/or tools such as Cameo, Rhapsody or MagicDRAW
  • 2+ years of experience with one or more of the following: Command & Control (C2), physical security, cybersecurity, Nuclear Command, Control, and Communications (NC3) systems/processes, communications systems, facility design, military aerospace development (e.g. Sentinel, Minute Man III, B-2, B-21 delivery systems)
  • Self-driven, able to tackle challenges, solve problems with minimal oversight and make recommendations for solutions/process improvement to leadership
  • Strong written and verbal communication skills

Preferred Qualifications:

  • Active DoD Top Secret Clearance
  • Understanding of the Systems Engineering V-Model
  • Experience with requirements management tools such as DOORS
  • Experience in SysML or UPDM modeling languages
  • Proficiency with the DoDAF, UAF, or other modeling frameworks
  • 3+ years' experience modeling with Cameo Enterprise Architecture, MagicDraw (No Magic, Inc.) or other architecture modeling tools
  • Experience using tools to model large systems with multiple developers
  • Experience exporting documentation out of a model-based environment
  • Experience in Software and/or Hardware design
  • Experience in documenting Interface Control Documents, Interface Requirement Specifications, and Interface Description Documents
  • Experience with software defined hardware structures (i.e., software defined radars and field programmable gate arrays)
  • Experience with modeling and simulation programs such as the Advanced Framework for Simulation, Integration and Modeling (AFSIM)
  • Experience with applying hypervisors, cross-domain solutions, multi-level security systems, or modular open systems approach to integrated systems
  • Experience with scripting and coding languages such as Python
  • Experience with Agile Development
  • Experience with ICBM weapon system sustainment engineering and integration
  • Experience with complex system development on large programs

As a full-time employee of Northrop Grumman Space Systems, you are eligible for our robust benefits package including:

  • Medical, Dental & Vision coverage
  • 401k
  • Educational Assistance
  • Life Insurance
  • Employee Assistance Programs & Work/Life Solutions
  • Paid Time Off
  • Health & Wellness Resources
  • Employee Discounts

This position's standard work schedule is 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off.

#SentinelSystems

Primary Level Salary Range: $98,400.00 - $163,200.00Secondary Level Salary Range: $122,800.00 - $203,600.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

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About Northrop Grumman

Sourced by ZipRecruiter

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible.

Industry

Space research administration

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US

Year founded

1939