Network Analyst/System Administrator II

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents. IT SME support is requested for the Intelligence and Security Command (INSCOM) G3’s Army Trojan Management Office (ATMO)— Trojan Network Operations Center (TNOC). Job Description Principle Duties and Responsibilities: · TNOC personnel provide Tier I customer service support to US ARMY INSCOM customers · Actively monitor network and terminal operations to ensure connectivity and availability · Monitor network data traffic patterns to minimize choke points · Accountable for all aspects of Network requirements and manages the hands-on, day-to day issues related to Networks · Provide system administrator support for GET TDN2 AD environment · Responsible for the hands-on, day-to-day issues related to user accounts and access to GET TDN2 AD and GET WAN Education and Certifications Certificates: IAT Level 2: A+ -CE, or Network + CE, Security + CE, or SSCP, or CCNA- Security Experience · 5 years supporting Network Operations and Microsoft Active Directory environments PLACE OF PERFORMANCE Fort Belvoir, VA Work Hours: Thurs-Sat and every other Wednesday 0600-1800 (one is an 8-hour day) SECURITY Must possess at minimum a TS Clearance with SCI eligibility. Must be willing to obtain a CI Poly Must be U.S. citizens and capable of maintaining a final TS/SCI security clearance. Additionally, all personnel will require access to NATO classified material and will require read on to NATO. While performing the duties of this job, the employee is occasionally required to stand and/or walk; handle or feel objects; and write. Ability to bend, reach, lift, and carry up to 15 pounds Compensation Details: $108,000 - $110,000 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: 06/24/2026 - 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. 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. 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