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Amentum is a global leader in advanced engineering and innovative solutions, supporting critical missions across defense, intelligence, energy, and civilian sectors. Our people are our competitive advantage, driven by purpose, collaboration, and a commitment to delivering excellence for our customers and communities. We are currently seeking a Senior Structural Designer to support our Oak Ridge, TN office.
We are looking for a Senior Structural Designer to participate in the design process, assist in developing BIM models, design drawings, and construction documents for structures made of steel, concrete, and masonry. You will be able to participate and focus on new design challenges, expanding career skills while supporting the development of life changing infrastructure that improves communities all over the United States.
Qualifications

• Sole US citizenship required (to comply with government customer requirements and/or applicable government regulations)
• 12+ years of industrial, commercial, and/or nuclear projects experience
• Ability to follow and implement established quality procedures and ensure that all work accomplished is procedurally compliant
• Competence using Microsoft Office software
• Ability to learn new software as necessary for project success
• Comfort working in fast-paced environment where requirements may evolve throughout projects
• Experience using Revit and/or Tekla for BIM modeling and drawing production
• Working knowledge of industry design standards (AISC, ACI, IBC, etc.)
• Ability to resolve interdisciplinary model clashes at a basic level.
• Experience in detailing steel and concrete drawings.
• Ability to interpret engineering calculations
• Use of 3D model coordination (i.e. Navisworks)

Preferred Qualifications

• Experience using AutoCAD and/or MicroStation software
• Background in project sectors such as Oil and Gas, Power Generation, Chemical Plants or Manufacturing Facilities
• Knowledge of connection design and fabrication drawing creation
• Mentoring and staff development for early career and mid-career staff
• Leading team of designers to project completion and delivery
• Able to implement design changes due to constructability
• Able to interpret structural analysis software outputs

Work Location
This position is remote/hybrid work with a preferred for this position to be worked full-time in Oak Ridge, TN. For people within 50 miles of the Oak Ridge, TN office, a hybrid option requires a person to be in office for minimum of 50% of the week. For people outside of 50 miles, a remote option with quarterly travel to the Oak Ridge, TN office is available. For hybrid and remote work, you are required to provide and work in a secured location as approved by the company within the United States due to the projects that you will be participating in.
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 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.
Compensation Details:
$40.39/HR - $60.58/HR
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:
07/09/2026 - 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.