Architectural Designer Senior

We’re looking for an Architectural Designer with knowledge of design, trends, construction methodology, material application, and manufacturer-supplier appropriateness. As the Architectural Designer you will work with groups of architects and designers to complete technical portions of projects within established budgets and schedules. The work will be performed in Oak Ridge, TN or Idaho Falls, ID with potentially some business travel. Join us and love what you do. Focus on tackling the toughest challenges with a smile as you support the development of life changing infrastructure that improves communities across the United States. If you’re up for the challenge, we’ve been looking for someone just like you. Join our team and help us lay the foundation for human progress. 

Amentum Nuclear Projects is a Tier 1 service provider to the U.S. Department of Energy, we deliver safe and innovative solutions at complex nuclear cleanup and production sites. Our services include program management, decommissioning, environmental remediation, waste and nuclear material management, nuclear operations, consulting, and engineering and construction.

Requirements

Experience designing commercial or industrial facilities

15 or more years of experience

Demonstrate experience of delivering a range of projects from concept through detailed design completion.

Experience with International Building Code (IBC)

Producing specifications and reviewing work of other staff for technical accuracy and provide guidance

Strong knowledge of design, trends, construction methodology, material application, and manufacturer-supplier appropriateness

Ability to Follow established Amentum quality procedures and ensures that all work accomplished under their control is accomplished under established quality procedures

Competent using discipline specific software such as: Revit, AutoCAD, Microstation, etc…

Competent using Microsoft 365 software.

US citizenship required.

Preferred qualifications:

Bachelor’s degree in Architecture from an accredited Architectural program

LEED AP certification

Able to lead groups of architects and designers to complete technical portions of projects within established budgets and schedules.

Experience with Department of Energy (DOE) standards and Nuclear Regulatory Commission (NRC) regulations

Experience working within a quality system based on ISO 9000 or NQA-1

DOE Q clearance is preferred but not required

A person residing a commutable distance from our Oak Ridge, TN office

NCARB registration is preferred but not required

Experience facilitating Charrettes desired but not required

DOE experience is desirable but not required.

Project Management Experience

Visualization/Graphic Capabilities

Essential Functions:

Intermittent sitting, walking, standing, bending, squatting, climbing, kneeling, twisting, and lifting. Lifting requirements limited to 20 lbs. in the form of supplies, drawings, etc. Longest distance carried of 50 feet. Hand manipulation is required for simple grasping, pushing, and pulling, and fine manipulation. Right and/or left hands utilized. Occasional need to reach and/or work above the shoulder, for supplies, as well as below the shoulder for same. No foot controls necessary. Must be alert to equipment in the field, there will be occasional travel, will work near construction job site equipment when in the field, occasional need to work near hazardous equipment and machinery, occasional need to walk on uneven ground, exposure to dust, gas or fumes, exposure to noise, extremes in temperature or humidity, and potential work at heights. 

At Amentum, we help prepare people for new opportunities and challenges. With positions at every level, openings in multiple disciplines, expertise in a range of markets and offices around the globe, we create an environment where you can learn, grow, and thrive. From our competitive benefits program to our Health and Safety initiative of zero workplace injuries, we believe that you'll find a flourishing career here at Amentum.

Equipment and Machines: Standard office PC, with software will be provided 

Travel required – As needed 

Attendance: Ability to work in the office is required

OTHER ESSENTIAL FUNCTIONS U.S. Citizenship required. 

Valid driver's license is required. Must be able to work in a team atmosphere. 

Must put forward a professional behavior that enhances productivity and promotes teamwork and cooperation. 

Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others. 

Must take and pass a pre-employment drug and background check.

Compensation Details:

$30.00 - $60.00

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Tax-saving options

• Disability and life insurance

• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

09/11/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.