Sr. Administrative Assistant I

United Cleanup Oak Ridge, LLC; Oak Ridge (TN); Hybrid; USD 85,000 - 110,000; Full time

Job summary

UCOR in Oak Ridge, TN seeks an experienced Administrative Professional to perform diverse secretarial and clerical duties for senior management. The role involves confidential work, advanced MS Office, and coordination across departments to support budgets, reports, and travel arrangements.

Requirements include AA/AS degree (or equivalent with advanced secretarial training) and 8+ years of related experience; 3 years with UCOR or another DOE contractor preferred.

Qualifications

• AA/AS degree or equivalent including advanced secretarial training.
• 8+ years of prior related experience (12+ years without AA/AS); DOE contractor experience preferred.
• Advanced knowledge of PC applications such as word processing, spreadsheets, and databases.

Responsibilities

• Perform diverse and advanced secretarial, clerical, and administrative duties for mid to senior-level management.
• Maintain files, prepare schedules, and assemble information for reports and memos.
• Coordinate travel, prepare expense reports, and manage inquiries across departments.

Skills

Communication skills

Office administration

Budget knowledge

Supervision

Software proficiency

Policy compliance

Education

AA/AS degree or equivalent including advanced secretarial training

Tools

Word processing

Spreadsheets

Databases

Presentations

Desktop publishing

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

3 days ago Requisition ID: 2801

Classification Title

8

Grade

8

Requisition No.

2801

Number of Positions

1

Location

Oak Ridge, TN

Organization

Administrative Professional Services

Department

Safety, Security, Health, & QA

Project Assignment

Mission Assurance

Posting Date:

10/5/2026

Closing Date:

10/12/2026

Duties

PRINCIPAL RESPONSIBILITIES

• Perform clerical, secretarial and administrative duties. Assignments generally involve work of a confidential nature and require knowledge of the practices, policies and procedures of the company, group and/or department.
• Typically uses common word processing, spreadsheet and presentation software. May use database, graphics, and desktop publishing software.
• Maintain files, keep records, and prepare schedules.
• Assemble and analyze information, prepare reports, manuals, agendas, correspondence and memoranda.
• Answer mail and inquiries on own initiative, follow up with other departments to ensure that requests are carried out.
• Arrange and make notifications of appointments and travel reservations or arrangements.
• Answer telephone calls, tactfully handle inquiries and/or transfer calls to appropriate party.
• Prepare, review and process expense reports.
• May take dictation and transcribe notes for letters, memos, or reports.
• Prepare materials in final form from very rough and involved drafts which may utilize frequent use of technical terminology and which combine materials from several sources.
• Plan layout of complex reports and statistical tables.
• Interface with other administrative staff to share or coordinate workload.
• May perform special projects that pertain to departmental and/or company goals as directed by supervisor.

Level-Specific Responsibilities

Under limited supervision and acting on own initiative:

• Perform diverse and advanced secretarial, clerical, and administrative duties for mid to senior-level management.
• Possess a thorough and extensive knowledge of office practices and procedures.
• May provide guidance and work leadership to lower-level clerical or secretarial staff.
• Typically assigned to one or more senior managers, supporting multiple managers and/or staff.

JOB KNOWLEDGE

• Excellent written and oral communication skills.
• Knowledge of technical vocabularies and terminology common to the assignment.
• Demonstrated knowledge of administrative functions, including budget and financial functions.
• Basic skills in training and supervision of personnel.
• Ability to develop and analyze information for studies and reports.
• Knowledge of UCOR’s organizational structure, functions and procedures.
• Advanced knowledge of software applications, creating spreadsheets with mathematical functions, and enhancing presentation reports.

Job-Related Qualifications Required

Grade 08

Education

AA/AS degree or equivalent including advanced secretarial training.

Experience

8+ years of prior related experience (12+ years without AA/AS); 3 years of experience with UCOR or other DOE contractor preferred. Requires advanced knowledge of commonly used PC applications such as word processing, spreadsheets, and databases. Requires experience across multiple organizations and functions and a solid working knowledge of company policies, procedures and programs.

Relocation

UCOR prohibits smoking in enclosed areas, including company vehicles.

NOTE 1

Candidates eligible for 3161 status must so indicate on their résumé or cover sheet and provide a copy of their 3161 Preference-In-Hiring Eligibility form with their résumé. Section 3161 of the National Defense Authorization Act requires UCOR to give preference-in-hiring to qualified 3161 eligible displaced Department of Energy (DOE) contractor employees before other external hiring on DOE-funded work is considered. To be 3161 eligible, you must have worked for a DOE contractor on or before September 27, 1991.

NOTE 2

Only web applications will be considered.

UCOR is an Equal Opportunity Employer: Minority/Female/Disability/Veteran

UCOR is committed to building a climate and sustainability focused workforce