June 10, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Experience developing and executing physics-based simulations using tools such as MCNP, SCALE, ORIGEN, COMSOL, and related modeling software, supplemented by data analysis tools such as Python, MATLAB, or C++.
p>The successful candidate will lead technical assessments of foreign nuclear weapons infrastructure, reverse engineer protective hardening measures, and identify vulnerabilities across facilities, processes, and supply chains. Leidos' Analysis Solutions business area is seeking a highly accomplished Principal Nuclear Engineer Subject Matter Expert (SME) to support critical national security missions in Reston, Virginia.
Our staff collaborates with Kiewit's vast internal network of resources that span heavy civil and infrastructure, vertical and commercial buildings, industrial, as well our oil and gas and power generation markets, to drive safe and cost-effective solutions that achieve client expectations and further Kiewit's core values of People, Integrity, Excellence, and Stewardship. We offer our fulltime staff employees a comprehensive benefits package that's among the best in our industry, including top-tier medical, dental and vision plans covering eligible employees and dependents, voluntary wellness and employee assistance programs, life insurance, disability, retirement plans with matching, and generous paid time off.
Rockville, MD30+ days ago
li>A masters degree in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of two years of experience. D. in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of three years of experience.
Alexandria, Virginia30+ days ago
p style="margin:0px">The role requires deep expertise in or an ability to quickly master several nuclear engineering related topics, including neutronics, thermal hydraulics, shielding, fuel and nuclear materials, and radiological consequence evaluation combined with strong communication skills, adherence to best practices, and an eye for growing MPR's portfolio. Oversee MPR engineers performing neutronics simulations and core design: criticality safety evaluations, critical core configurations, fuel cycle management, activation calculations, radiation detection and shielding analyses: alarm setpoint determination, shielding optimization, ALARA implementation, dosimetry calculations.
Reston, Virginia21 days ago
June 10, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The successful candidate will lead technical assessments of foreign nuclear weapons infrastructure, reverse engineer protective hardening measures, and identify vulnerabilities across facilities, processes, and supply chains.
There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. Review strategic weapon system certification processes and activities to ensure objective quality evidence and artifacts required for safety, security, control, and reliability certifications are identified, defined, understood, and accessible to sponsors.
Gaithersburg, MD26 days ago
li>Complex engineering calculations such as: load flow, short circuit, motor starting (ETAP or SKM), Arc flash analysis (ETAP or SKM), protective relay settings, battery and charger sizing.
Extensively use Microsoft Office business systems such as ProjectWise, electrical engineering software, such as ETAP and Computer Aided Drafting Tools, such as AutoCAD to view and manipulate engineering drawing files.
Gaithersburg, MD26 days ago
Typical roles include being recognized as an industry expert, participating in professional societies by presenting papers, acting as a section lead for a large or complex specialty area, an engineering consultant for larger scale projects. Extensively use Microsoft Office business systems such as ProjectWise, electrical engineering software, such as ETAP and Computer Aided Drafting Tools, such as AutoCAD to view and manipulate engineering drawing files.
Gaithersburg, MD30+ days ago
li>Performing calculations such as pipe sizing calculations, pipe thickness calculations, pump sizing calculation, control valve sizing calculations, heat exchanger sizing, atm. We are fully committed to assisting our clients meet the needs of a global nuclear power industry with quality engineering and turnkey Engineer-Procure-Construct (EPC) solutions.
Rockville, MD30+ days ago
Support for engagements with the US Nuclear Regulatory Commission (NRC) includes pre-application meetings, preparing and reviewing permit and license applications, preparing and reviewing topical reports, and responding to NRC audit questions and requests for additional information. TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes.
Gaithersburg, MD30+ days ago
p>In this role, you will have the opportunity to: • Work as part of the project team to generate engineering design documents and deliverables for systems related to the power plant (logics, network architecture diagrams, instrument lists, I/O Lists, instrument installation details, schematics and wiring drawings, calculations, studies, technical specifications, etc.).
Company: Black & Veatch Corporation Req Id: 113557 Opportunity Type: Staff Relocation eligible: No Full time/Part time: Full-Time Project Only Hire: No Visa Sponsorship Available: No.
Why Black and Veatch Black & Veatch allows you to lend your talent and perspective to humanity's biggest challenges in a flexible environment where you are empowered to grow and explore new possibilities.
Gaithersburg, MD30+ days ago
p>Preferred Qualifications Experience in some of following areas: • Instrument and/or Service Air Systems • Demineralized (DM) water supply and make up systems • Service and potable water supply system • Natural, hydrogen, and nitrogen gas Supply System • Closed cycle cooling water system • High Pressure / Intermediate Pressure / Low / Auxiliary Steam system • Feedwater and condensate systems • CO2 Supply System • Calculations which include pipe sizing calculations, pipe thickness calculations, pump sizing calculation, control valve sizing calculations, heat exchanger sizing, atm. We are fully committed to assisting our clients meet the needs of a global nuclear power industry with quality engineering and turnkey Engineer-Procure-Construct (EPC) solutions.
Rockville, MD30+ days ago
It includes identifying requirements, conceptualizing system architecture and developing the layout through final design, performing process calculations, selecting and specifying equipment components ensuring they meet all technical specifications and program/project requirements. Perform Systems Engineering processes for the designed mechanical systems and components:
Demonstrate project management skills to effectively organize and lead external engineering partners and internal stakeholders.
Elkridge, Maryland30+ days ago
li>Prepare and review equipment procurement specifications, Participate in bid review evaluation process for potential equipment vendors, to include supporting vendor requests for additional information, developing responses to vendor questions, and maintaining a tracking mechanism for questions/responses, Prepare and review scoping documents for conceptual designs, to include constructability reviews, Interface with project team members from other engineering and design disciplines (Mechanical, Structural, Civil, I&C), Interface with the client in support of the project, including implementing personnel, Interface with vendors to perform document reviews and provide written comment, Attend client meetings and site field walkdowns to validate scope and ensure client satisfaction. Responsibilities include:
- Prepare and review engineering design change packages to install, replace or upgrade existing plant equipment to ensure long-term equipment reliability,
- Prepare and review detailed engineering calculations in support of design change packages, including AC and DC power studies, short circuit, cable ampacity, voltage drop, breaker coordination, motor starting and protective relay settings.
Elkridge, Maryland30+ days ago
Work collaboratively on quality assessments and critical digital reviews, Perform consulting level work for digital IOT, innovation, and strategic first of a kind (FOAK) projects for the nuclear industry, Prepare and review detailed calculations, including scaling, uncertainty, and setpoint calculations for analog and digital controls applications, Prepare documentation for design input for drawing production including master diagrams and schematics, Interface with vendors to prepare and review materials and equipment purchase specifications, Prepare reports and studies that present technical information in a clear and concise manner to meet client requirements, Perform independent reviews of work performed by others including calculations and drawing preparation, Attend client meetings and site walkdowns to validate scope and ensure client satisfaction. AI & Automation at Sargent & Lundy: In this role, we expect people to be willing or able to lead others who use modern tools:
- You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
Gaithersburg, MD30+ days ago
Communicates client interests and drivers to project team members and develops approaches to accommodate these concerns in the performance of the work on low to moderately complex projects. All applicants must be able to complete pre-employment onboarding requirements (if selected) which may include any/all of the following: criminal/civil background check, drug screen, and motor vehicle records search, in compliance with any applicable laws and regulations.
Rockville, MD30+ days ago
li>Perform and assist metallurgical analysis for the alloys selected for metallic systems, structures, and components of X-energy developed reactors, including pressure vessels and piping, reactor internals, heat exchangers, and other systems and components. Job Responsibilities:
- Develop and implement methodologies to qualify and characterize materials, especially metallic alloys, graphite, composites, and welding materials for nuclear reactor applications including in high temperature environments.
p>As the Senior Nuclear Surety Systems Engineer, you will: Serve as the Lab's focal point and thought leader for nuclear surety engineering with emphasis on leveraging and implementing systems engineering principles to enhance strategic systems nuclear surety design and modifications.
Are you interested in applying technical leadership, innovation, system engineering skills, and specialty nuclear surety expertise toward the difficult critical challenges of ensuring the safety and security of this nation's most critical defense systems?
Elkridge, Maryland30+ days ago
AI & Automation at Sargent & Lundy: In this role, we expect people to be willing or able to lead others who use modern tools:
- You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
- Leaders in these roles often direct automation and process-improvement work, for example, how teams automate calculations, summarize technical documents, or generate design documentation and guiding when and how AI or agentic AI tools are used while ensuring results are checked.
Washington, D.C.30+ days ago
There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. Our solution areas include space mission engineering, atmospheric science, digital engineering, mission assurance, and advances in modeling and simulation that together with our enterprise-wide adoption of artificial intelligence and machine learning, lead to better systems and timely, reliable decision-making.
Germantown, MD22 days ago
p>
. Global Engineering & Technology (GET) is seeking a highly qualified individual to join our team during Q3 2026 as a Technical Guidance Analyst (TGA), supporting the Department of Energy's (DOE) Office of Classification in Germantown, Maryland.
Laurel, Maryland30+ days ago
ul>Serve as the Lab’s focal point and thought leader for nuclear surety engineering with emphasis on leveraging and implementing systems engineering principles to enhance strategic systems nuclear surety design and modifications. Description: Are you interested in applying technical leadership, innovation, system engineering skills, and specialty nuclear surety expertise toward the difficult critical challenges of ensuring the safety and security of this nation’s most critical defense systems? .
p>In this role, we expect people to be willing or able to lead others who use modern tools: - You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
- Leaders in these roles often direct automation and process-improvement work, for example, how teams automate calculations, summarize technical documents, or generate design documentation and guiding when and how AI or agentic AI tools are used while ensuring results are checked.
Elkridge, Maryland30+ days ago
AI & Automation at Sargent & Lundy: In this role, we expect people to be willing or able to lead others who use modern tools:
- You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
- We also value additional learning, such as a minor, certificate, or other experience in Computer Science, Artificial Intelligence, Software Engineering, or related fields that enables effective oversight of automation and agentic AI-enabled engineering workflows.
p>In this role, we expect people to be willing or able to lead others who use modern tools: - You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
- Leaders in these roles often direct automation and process-improvement work, for example, how teams automate calculations, summarize technical documents, or generate design documentation and guiding when and how AI or agentic AI tools are used while ensuring results are checked.
Elkridge, Maryland30+ days ago
AI & Automation at Sargent & Lundy: In this role, we expect people to be willing or able to lead others who use modern tools:
- You are expected to lead others in taking engineering problems from issue to solution by setting expectations for using data and modern tools such as automation and AI to improve workflows, reduce rework, and deliver cost-effective designs.
- Leaders in these roles often direct automation and process-improvement work, for example, how teams automate calculations, summarize technical documents, or generate design documentation and guiding when and how AI or agentic AI tools are used while ensuring results are checked.
Rockville, MD30+ days ago
Lead and manage systems engineering lifecycle efforts surrounding: • Stakeholder and operational analysis • Requirement identification, decomposition, and management • Functional decomposition and modeling • Logical system architecture development and modeling • Physical product definition, interface management, and change control • Design integration and testing • System verification and validation • Concept of operations development and modeling • Develop and maintain system behavior models using model-based systems engineering (MBSE) tools within established Product Lifecycle Management (PLM) frameworks. Experience and/or knowledge in the following areas:
• System Lifecycle Processes (ISO 15288) • Operational & Stakeholder Analysis • Requirements Management • System Design & Interface Management • Design Integration & Testing • Verification & Validation • Model-Based Systems Engineering (MBSE) Tools and Methods & Product Lifecycle Management Systems • Teamcenter PLM, Cameo, Capella, Genesys, SysML, and DOORS • Systems modeling and simulation • Interface control and management • Configuration management and change control • Technical risk assessment and management.
Gaithersburg, MD30+ days ago
p>In this role, you will have the opportunity to: • Work directly with the project team to generate engineering design documents and deliverables for systems related to the power plant (logics, network architecture diagrams, instrument lists, I/O Lists, instrument installation details, schematics and wiring drawings, calculations, studies, technical specifications, etc.).
Company: Black & Veatch Corporation Req Id: 113553 Opportunity Type: Staff Relocation eligible: No Full time/Part time: Full-Time Project Only Hire: No Visa Sponsorship Available: No.
Why Black and Veatch Black & Veatch allows you to lend your talent and perspective to humanity's biggest challenges in a flexible environment where you are empowered to grow and explore new possibilities.
Gaithersburg, MD30+ days ago
p>In this role, you would have the opportunity to: • Working directly with the project team to generate engineering design documents and deliverables for systems related to the power plant (logics, network architecture diagrams, instrument lists, I/O Lists, instrument installation details, schematics and wiring drawings, calculations, studies, technical specifications, etc.).
Company: Black & Veatch Corporation Req Id: 113555 Opportunity Type: Staff Relocation eligible: No Full time/Part time: Full-Time Project Only Hire: No Visa Sponsorship Available: No.
Why Black and Veatch Black & Veatch allows you to lend your talent and perspective to humanity's biggest challenges in a flexible environment where you are empowered to grow and explore new possibilities.
li>Have experience with modeling or testing of any radiation effects on electronics including total ionizing dose, dose rate, single event effects and displacement damage from X-rays, gamma rays, neutrons, protons, and heavy ions. - Have a Master of Science or Doctorate in Physics, Electrical Engineering, Nuclear Engineering, Applied Mathematics, or a related science/engineering field with 3+ years of relevant experience.
Baltimore, Maryland8 days ago
Critical for success in this position is excellent verbal and written communication skills, the ability to multitask while managing work both with internal Michels teams and external partner and client teams, as well as the ability to quickly make well informed decisions.
This information reflects the anticipated base salary for this position based on current market data.
div>STRUCTURAL TECHNOLOGIES develops and integrates products, engineering support, repair and maintenance services to provide value-added solutions to owners, engineers and contractors.
STRUCTURAL TECHNOLOGIES is a recognized leader in the specialty construction industry, delivering turnkey solutions that integrate technology, engineering, and construction.
Arlington, VA30+ days ago
We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. AECOM is actively growing the East Region Environmental Planning & Permitting (EPP) practice and is seeking an Environmental Project Manager for its Nuclear and Radiological Services Group within the southeastern EPP Department.
Laurel, Maryland6 days ago
li>Have experience with modeling or testing of any radiation effects on electronics including total ionizing dose, dose rate, single event effects and displacement damage from X-rays, gamma rays, neutrons, protons, and heavy ions. - Have a Master of Science or Doctorate in Physics, Electrical Engineering, Nuclear Engineering, Applied Mathematics, or a related science/engineering field with 3+ years of relevant experience.
Washington, District of Columbia30+ days ago
p>Responsibilities: - Developing, coordinating, and conducting all- source research and analysis to produce finished intelligence products for consumption by headquarters officials, field and laboratory experts, and US Intelligence Community (IC). The primary duty of the position involves producing and disseminating written technical intelligence products, providing customized briefings and assessments to senior policymakers, and interfacing with other members of the Intelligence Community and National Laboratories.
p>As a Nuclear Engineering All-Source Intelligence Analyst, you will support defense analytical requirements with enhanced scientific or engineering research, reverse engineering analysis, characterizations, and facility and vulnerability assessments on nuclear capabilities, including nuclear engineering and sub-disciplines of thermo-hydraulics, seismic or earthquake, physics, computational science, and fission reactor engineer. Ability to independently develop high-quality tailored deliverables, including actionable leads, ICD-compliant written products, network charts, and formal or informal briefings.
This role owns the P&L and growth strategy for a global market that includes DOE, NNSA, all other U.S. Government (USG) clients, and various commercial clients supporting USG funded initiatives with the conventional and nuclear energy sectors. Talent & Culture • Build and lead a high-performing market leadership and delivery teams (e.g., portfolio managers, client account leads, bid managers, and program & project directors/managers).
Arlington, VA30+ days ago
Qualifications Required Qualifications Masters degree and 10 years' experience in DoD nuclear enterprise management organizations Recent advanced experience with nuclear stockpile stewardship activities and requirements at all levels of USG Recent work involving coordination of nuclear enterprise issues across DoD and other agencies Secret clearance. Technical Analysts and Engineers Technical analysts and engineers provide tailored program management for life-cycle systems engineering and logistics support, rapid capabilities development and fielding, cyber warfare operations, nuclear command, control and communications, and design, production, and maintenance support.
Rockville, MD30+ days ago
em> Experience in the use or development of analysis software under a heavily regulated quality assurance regime (e.g., nuclear systems design, nuclear safety analysis, flight control software, safety-related industrial controls or similar such as computer software used to control plant SSCs). Job Profile Tasks/Responsibilities Support the delivery of the following software and services to the engineers who are performing analysis: Internally developed analysis software (i.e., installation files, documentation, testing, user support).
You will have the opportunity to lead and mentor a structural engineering team on engineering projects for new nuclear facilities and upgrades and modifications to nuclear power plants in the following areas: This position will offer you the ability to directly apply your knowledge of materials, structural analysis, structural steel design, and reinforced concrete design. Since 1954, we’ve been a trusted leader in nuclear engineering, design, and licensing, with expertise spanning small modular reactors (SMRs), advanced reactor technology (ART), and first-of-a-kind commercial reactor restart projects.
p>· Influence the development and implementation of policies and strategies within government and nongovernment institutions to advance campaign goals; collaborate with UCS campaign and legislative staff to develop and effectively promote UCS-supported positions with senior government officials, legislators, regulators, opinion leaders, stakeholders, non-traditional allies, coalition partners, public and media representatives at local, state, regional, and national levels. · Establish and maintain alliances with advocates, other organizations, community leaders, businesses, academics, and researchers, including regulatory and legislative staff and governmental agencies, to exchange information, provide technical information/education and guidance, share resources, advance shared objectives, engage in collaborative projects, and participate in coalitions.
Some duties may include but not limited to; test boring/test pit observations, other geotechnical field tests, soil classification, laboratory analysis, preparation of geotechnical reports/calculation, management of field staff, review of daily CMT field reports, occasional performance of on-site construction materials testing services, etc. As a Staff Engineer in our Chantilly office, you will work collaboratively with our knowledgeable geotechnical and construction materials testing/inspections departments and assist with a wide variety of projects for public and private sector clients.
Some duties may include but not limited to; test boring/test pit observations, other geotechnical field tests, soil classification, laboratory analysis, preparation of geotechnical reports/calculation, management of field staff, review of daily CMT field reports, occasional performance of on-site construction materials testing services, etc. As a Staff Engineer in our Chantilly office, you will work collaboratively with our knowledgeable geotechnical and construction materials testing/inspections departments and assist with a wide variety of projects for public and private sector clients.
Some duties may include but not limited to; test boring/test pit observations, other geotechnical field tests, soil classification, laboratory analysis, preparation of geotechnical reports/calculation, management of field staff, review of daily CMT field reports, occasional performance of on-site construction materials testing services, etc. As a Staff Engineer in our Annapolis Junction office, you will work collaboratively with our knowledgeable geotechnical and construction materials testing/inspections departments and assist with a wide variety of projects for public and private sector clients.
Chantilly, VA30+ days ago
Some duties may include but not limited to; test boring/test pit observations, other geotechnical field tests, soil classification, laboratory analysis, preparation of geotechnical reports/calculation, management of field staff, review of daily CMT field reports, occasional performance of on-site construction materials testing services, etc. As a Staff Engineer in our Chantilly office, you will work collaboratively with our knowledgeable geotechnical and construction materials testing/inspections departments and assist with a wide variety of projects for public and private sector clients.