Senior Civil Engineer

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 Civil Engineer to support our Oak Ridge, TN office. The Senior Civil Engineer will be responsible for leading the planning, design, permitting, and execution of land development projects across commercial, industrial, and institutional sectors. This role requires technical expertise, project leadership, and coordination with clients, agencies, and multidisciplinary teams to deliver high‑quality, compliant, and cost‑effective site development solutions. Responsibilities include but aren't limited to: Technical & Design Leadership Lead the planning and design of site development projects, including grading, drainage, stormwater management, utilities, erosion and sediment control, and roadway access Prepare and review civil engineering calculations, technical reports, specifications, and construction documents Ensuring designs comply with applicable federal, state, and local regulations, codes, and standards Provide quality control and technical oversight for work produced by junior engineers and designers Discipline Project Management Manage multiple projects simultaneously, including scope, schedule, budget, and resource allocation Develop project work plans, manpower estimates, and participate in proposal efforts Coordinate with clients, Architects, Surveyors, Structural Engineers, Contractors, and other consultants throughout project development Support construction administration services, including responding to RFIs, reviewing submittals, and conducting site visits Regulatory & Permitting Lead permitting efforts and coordinate with local agencies, utilities, and regulatory bodies Prepare and submit land development, zoning, and permitting applications Address regulatory comments and support entitlement processes Mentorship & Collaboration Mentor and provide guidance to junior and mid-level engineers, EITs, and CAD designers Foster collaboration within project teams and across disciplines Contribute to process improvements, standards development, and technical best practices Client & Business Development Support Maintain strong client relationships and provide technical support during business development efforts Assist with identifying new project opportunities and expanding existing client relationships Represent the firm during client meetings and stakeholder engagements Required Qualifications: Bachelor’s degree in Civil Engineering or a related discipline. Professional Engineer (PE) license required Minimum of 8–12 years of experience in civil engineering with a focus on site development Must be able to show proof of US citizenship (to comply with government customer requirements and/or applicable government regulations) Strong working knowledge of site development design practices, permitting, and construction processes Experience with stormwater management design and hydrologic/hydraulic modeling Proficiency with relevant design software (e.g., AutoCAD Civil 3D, StormCAD, HydroCAD, or similar) Excellent written and verbal communication skills Preferred Qualifications: Civil Engineering degree from an ABET accredited university Experience serving as Engineer of Record Demonstrated experience mentoring staff and leading project teams Experience with sustainable site design and low‑impact development (LID) practices Work Location This position is designed to support either in-office or remote work, with a strong preference for the successful candidate to work from Amentum's office in Oak Ridge, Tennessee. Employees who reside within 50 miles of Oak Ridge will be expected to work from the Oak Ridge office. Employees who live more than 50 miles away are eligible for a remote work arrangement; however, remote employees must travel to the Oak Ridge office on a quarterly basis. Those working remotely are required to maintain a company-approved secure workspace that meets all client security requirements and is located within the United States. This U.S.-based secure work location requirement applies to all projects associated with the position. Compensation Details: $109,000 - $175,000 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. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters .