Posted:
2/18/2026, 4:00:00 PM
Location(s):
Rockville, Maryland, United States ⋅ Maryland, United States
Experience Level(s):
Expert or higher ⋅ Mid Level ⋅ Senior
Field(s):
Mechanical Engineering
X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/. We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us.
Job Description
This role is responsible for supporting the design and implementation of the Chemistry Program for the Power Plants. The Engineer will assist in the development of primary and secondary chemistry programs, implement chemical control strategies, monitor chemistry parameters, follow sampling requirements, apply action level responses for out of spec parameters, support corrosion mechanism mitigation efforts, implement laboratory Quality Assurance/Quality Control (QA/QC) procedures, and operate chemical addition systems.
Job Profile Tasks/Responsibilities:
Support the design and licensing of the power plant
Collaborate with system engineers, analysts, and other stakeholders on systems requiring chemistry controls
Assist in the design of chemical processing systems
Participate in research for new and improved chemical treatment processes
Implement specifications for chemistry process equipment and interact with equipment suppliers
Support subcontractors and suppliers during the installation of chemical equipment
Follow and help refine standard operating procedures for chemical and analytical systems
Identify and troubleshoot problems associated with chemical processes
Monitor chemical process controls and report variances
Adhere to safety policies and procedures for working with hazardous chemicals, processes, or equipment
Comply with environmental and safety regulations in all chemistry activities
Execute policies and procedures for processing solid, liquid, and gaseous materials
Provide technical input for waste permitting documentation
Assist with laboratory and equipment layout planning
Maintain accurate records of equipment, chemical inputs, outputs, and waste streams
Maintain professional demeanor and behavior at all times in all forms of communication
Perform other duties as assigned by manager
Job Profile Minimum Qualifications:
Typically, fifteen years of experience in an functional engineering role.
Bachelor of Science (BS) degree in chemical engineering, nuclear engineering, material science, material science engineering, mechanical engineering, or a related science degree
A master’s 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.
A Ph.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.
Knowledge of nuclear regulations, regulatory review processes, nuclear codes and standards
Familiarity with industrial equipment design, procurement, installation, and operation
Previous experience at X-energy exceeding performance standards may be in lieu of years of experience.
Location: 530 Gaither Road, Rockville MD
Work Site Expectations: 4 days in Office / Remote
Travel Expectations: 10%
Hours: 8:00am ET to 5:00pm ET, Monday - Friday
Compensation
As required by Maryland and other applicable state law, X Energy, LLC (X-energy) lists the expected compensation range for a publicly advertised job opportunity based upon the job requirements (e.g. education/training, experience, skill sets, etc.). Individual candidates who meet the job requirements for the posted position will be offered a salary within this range based on their respective levels of education/training, experience, and other qualifications unique to them. Salary ranges may vary based on the specific office location and region referenced in the posting to take into consideration differences in cost of living and may not be reflective of all regions. Please note that compensation ranges listed for US job postings reflect base salary only and do not include benefits or other incentives.
A reasonable estimate for this position at the level of experience required is:
$154,588- $257,646Position Job Classification
Full time - ExemptBenefits
X Energy, LLC offers a robust benefits package that includes a 401K plan with an employer match, Medical/Dental /Vision Insurance, Life and Disability Insurance, Paid Time Off, and a Tuition Reimbursement/Professional Development policy that supports the continuing education of our employees.
An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
X Energy, LLC participates in E-Verify. Please visit the links below for more information about E-Verify and the protection of your Right to Work.
Right To Work Link: If you have the right to work, don't let anyone take it away (e-verify.gov)
E-Verify Participation Link: E-Verify Participation Poster English and Spanish
Website: https://x-energy.com/
Headquarter Location: Rockville, Maryland, United States
Employee Count: 501-1000
Year Founded: 2009
IPO Status: Private
Last Funding Type: Private Equity
Industries: Clean Energy ⋅ CleanTech ⋅ Energy ⋅ Nuclear ⋅ Renewable Energy