ACS (Access Control Specialist), Full-Time

Join our team of 500+ front-line security professionals ensuring that our nation’s most precious assets are protected. As a physical security specialist, you will be provided with exceptional training and growth opportunities while playing a critical role in the workplace and mission security for a US intelligence community customer. Are you Vigilant, Trustworthy and Patient? If security is important to you, keep reading. These are the foundational qualities we are looking for in our Access Control Specialists! Essential Responsibilities: Monitor and control the access of employees and visitors in and out of restricted areas by ensuring people have proper access. Ensure that prohibited and restricted items do not find their way in or out of the building. Diligently monitor your restricted area. Provide excellent customer service to all employees and visitors. Remain alert and aware of surroundings. Exhibit excellent communication in every interaction. Ensure attention to detail. The ability to work independently during your scheduled shift(s). The ability to adapt to change within high-volume, fast-paced, and slow-paced environments. Minimum Requirements: Currently hold an active TS/SCI with Poly. You must be able to work 1st Shift: (5:30am - 1:30pm) Monday-Friday (SHIFT +/- 1 hour), 2nd Shift: (1:30pm - 9:30pm) Monday-Friday (SHIFT +/- 1 hour) or 3rd Shift: (9:30pm-5:30am) Sunday- Thursday (SHIFT +/- 1 hour) shift based on contract needs; this work supports 24/7 operations, and you may be assigned challenging shifts, but it will be worth it! Must have and maintain a valid state driver’s license in good standing. High School diploma or GED. U.S. citizenship. Currently live within a 50-mile radius of San Antonio, TX. Read, speak, and understand English language fluently. You will need to be comfortable leaving your mobile device at home or in your car. The assigned work location will be in a restricted mobile communication zone. Must be available to work 2 major holidays and 1 minor holiday, as determined by Amentum, per year. Work Environment, Physical Demands, and Mental Demands You need to be physically able to perform all duties and functions as specified: You should have 20/20 vision (glasses and contacts count) and close vision correctable to Jaeger No. 4 type test for both eyes. You need to be free of color blindness. You should have normal fields of vision and good depth perception, as defined by the Snellen chart. You need to be able to have hearing which is correctable to normal level hearing with hearing aids. Normal hearing levels are demonstrated by a pure tone audiometry hearing level (HL) of 0 decibels (dB) or lower. You need to be able to stand continuously for 4 hours at a time. The ability to work independently during your scheduled shift(s). The ability to adapt to change within a high-volume, fast-paced environment. Compensation Details: $15.85-$24.57 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: 06/02/2026 - 06/09/2026 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. Welcome back! We encourage you to check on the status of your current job applications with us. You can also search for a list of our current job openings and see if there are any new positions that might be a good fit for you. Thank you for continued interest in employment with Amentum. For more than 100 years, Amentum has tackled the world’s toughest challenges to deliver agile and steadfast solutions to the U.S. government and its allies. With more than 50,000 employees on all seven continents and in more than 60 countries, Amentum delivers a broad range of operational support services to meet the critical needs of our clients. Our headquarters are in Chantilly, VA. Find us online at If you need a reasonable accommodation for any part of the employment process, please contact us by email at View email address on click.appcast.io and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. If you need assistance, please reach out to View email address on click.appcast.io EEO including Disability/Protected Veterans Labor Laws Posters Amentum has become aware of unauthorized individuals who are falsely using the Amentum name and /or logo in an attempt to solicit fees from potential job seekers. These deceptive and unauthorized individuals are soliciting money, promising placement in a position with Amentum. Please note any communication requesting any amount of money in exchange for employment with Amentum is fraudulent. These communications do not originate from Amentum and are not associated with the recruitment process. Amentum and its affiliates never charge candidates fees or payments of any kind in order to secure employment. As a precaution, we recommend you do not disclose personal or financial details to anyone as a response to an unsolicited email, social media, or dating website request. 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