Sr. Architect 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 Sr. Architect to support our Oak Ridge Office. We’re looking for a Sr. Architect with knowledge of design, trends, construction methodology, material application, and manufacturer-supplier appropriateness. As a Sr. Architect you will work with lead a group of architects and designers to complete technical portions of projects within established scopes, budgets and schedules. The work will be performed in Oak Ridge, TN 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 and many commercial nuclear companies; we deliver safe and innovative design solutions for first-of-a-kind complex nuclear projects. Our services include program management, decommissioning, environmental remediation, waste and nuclear material management, nuclear operations, consulting, architecture, engineering and construction. Together, let's shape tomorrow and tackle the world's most complex nuclear challenges. Qualifications • Bachelor’s degree in architecture from an accredited Architectural program • 15 or more years of experience • Registered Architect • LEED AP Certification desired but not required • Licensed Architect in Tennessee with current registration or licensed in another state with ability to obtain TN licensure within six months • Experience designing commercial and industrial facilities • Demonstrate experience of delivering a range of projects from concept through detailed design completion. • Strong knowledge of the International Building Code (IBC) and specifications • 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 • Experience working within a quality system based on ISO 9000 or NQA-1 • Competent using discipline specific software such as: Revit, AutoCAD, Microstation, etc… • Competent using Microsoft Office software. • US citizen required. Preferred qualifications: • Able to lead a group 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 is a plus but not required • Master’s degree is a plus but not required • DOE Q clearance is desired 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. 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 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: senior architect 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: 08/20/2026 - 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. 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