Office Administrator

Amentum is seeking a skilled professional to serve as the Office Administrator at our Houston, Texas office. The Houston office is a key element of the U.S. Navy’s launch test facilities Research and Development (R&D) program. This R&D program is a top priority for our nation and supports both U.S. Navy Submarine and Surface Ship weapons system capability testing. This specific role is critical to ensuring the day-to-day operation of the Houston office. This role will also provide key support functions to the R&D program as a whole. Key Responsibilities: Office Lead Act as the primary point of accountability for the effective operation and presentation of the Houston office. Coordinate office services including facilities, access, security, meeting rooms, and visitor management. Liaise with Amentum Real Estate team, landlords, property managers, and service providers to ensure issues are promptly resolved. Maintain office readiness for leadership visits, customer engagements, audits, and external stakeholders. Oversee general office supplies, contracts, and basic budget tracking related to office operations. General Administration Provide ad hoc administrative, coordination, and project support as required by leadership. Act as an effective gatekeeper, managing competing priorities, anticipating issues, and ensuring time is focused on high value activities. Support the team with meeting coordination, agenda preparation, action tracking, and follow up. Prepare correspondence, reports, presentations, and executive submissions with a high standard of accuracy and judgement. Support coordination of meetings, offsite/site visits, and key internal events, including logistics and materials. Support team travel bookings, expense claims and conduct monthly reconciliations (as necessary). Build strong relationships across the business to facilitate smooth information flow and issue resolution. Governance, Compliance & Security Support Submit badge requests and visit requests for team members as necessary in support of program requirements. Support compliance with corporate, Defense, and government security requirements (e.g. visitor protocols, document handling, secure meetings). Maintain controlled records, registers, and documentation in accordance with internal management system requirements. Support audits, reviews, and inspections by ensuring documentation, scheduling, and office arrangements are in order. Handle sensitive information with discretion, professionalism, and sound judgement. Required Qualifications: At least (4) years experience as a receptionist, office manager, office lead, or facility lead. Excellent organizational skills with the ability to manage competing priorities in a fast paced environment. Demonstrated administrative experience supporting senior leaders, internal teams, and customers. High proficiency in Microsoft Office (Outlook, Word, Excel, PowerPoint, Teams). Professional communication skills, both written and verbal. Proven ability to work autonomously while maintaining strong alignment with leadership intent. Strong attention to detail with the ability to see the broader organizational context. Strong judgement, discretion, and ability to handle highly sensitive and confidential information. Preferred Qualifications: Bachelor’s degree in Business, Accounting, Program Management or other related degree fields. Experience working with Real Estate team, landlords, property managers, and service providers. Experience in a Defense, government, engineering, or regulated professional services environment. Familiarity with DoD security requirements (e.g. badging, visit requests, and security admin functions). Current DoD Secret (or Higher) security clearance. Experience with Amentum processes/procedures. Security & Clearance: Ability to obtain and maintain a U.S government security clearance. Note: US Citizenship is required to obtain a U.S government security clearance. Work Environment: This position is based on-site in Houston, TX. Less than Compensation Details: $75,000.00 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: 08/18/2026 - 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. #J-18808-Ljbffr Amentum