Job Description 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 Sr. Systems Integrator to provide support to the US DOE Office of Legacy Management IT Projects team. The Sr. Systems Integrator will leverage their knowledge and experience to participate on teams to develop key new IT capabilities or to modernize and enhance existing capabilities, artifacts, and processes. ESSENTIAL DUTIES/RESPONSIBILITIES: Directs the complex design, selection, installation, modification, and operation of an information systems capability. Understands and applies existing, company-specific project management methods. Will typically actively participate in IT Project Management, IT Governance, and IT Operations department meetings to provide status updates, presenting planned configuration changes, assisting in root cause analysis and associated issue resolution, etc.. Viewed as expert in special knowledge & technology as well as operational policy & procedure. Supervise the installation, configuration, maintenance, and support for enterprise business applications and systems. Provide local support to site operations and staff as needed, ranging from infrastructure systems, networking devices and configuration, client endpoints, and end-users. Other duties as assigned. EDUCATION, LICENSE, CERTIFICATION, and EXPERIENCE Education: Bachelor’s degree in Information Technology or other STEM-related fields. Must be able to obtain and maintain facility credentials/authorization. Note: U.S. Citizenship is required for facility credentials/authorization at this work location. Experience: 9 or more years of applicable and proven experience in Information Technology / Services. Licenses: None Certifications: MSCE or similar/equivalent, CCNA, CCNP Enterprise or CCNPD Data Center Certification, and/or PMP certifications preferred REQUIRED SCREENINGS1.Drug Screen2.Physical Assessment (if applicable).Background Check4.Driver Record Screen REQUIRED SKILLS/ABILITIES: Excellent communication skills, both written & verbal. Able to translate technical jargon to simple business language. Advanced analytical skills and abilities to derive solutions to resolve complex issues. Understands and applies existing, company-specific project management methods. Develops solutions to resolve project issues. Assists with the creation and/or review of project and/or technical documentation; templates, charters, schedules, plans, design documents, etc.. Experience in the M365 suite of products, spanning both administration and general use.Experience with Windows Server Operating Systems, Active Directory, Azure.Proficiency with Microsoft Office (Outlook, Word, Excel, Visio, PowerPoint,), various web conferencing tools (Teams, WebEx), and various web browsers (Edge, Chrome).Exposure to or skills with any of the following: NIST SP 800-53, Networking, Server Operations or one of the LM Cybersecurity technical systems (Splunk, CrowdStrike, Cisco FirePower, etc.).Experience with Palo Alto Network and Cisco Firewalls.Experience with IPv6.Collaboration and cooperation in various team settings to include physical and virtual environments.Legacy Management Support (LMS) Organizational Core Values: One Team, One MissionSuccessfully execute the LM mission safely through a disciplined culture of organizational excellence.1.Safety – The foundation of everything we do.2.Teamwork – Leading with trust, open communication, and collaboration.3.Quality – Striving to exceed expectations.4.Ownership – Each of us has the responsibility to contribute and be accountable. ESSENTIAL PHYSICAL REQUIREMENTS: Aligned with Fit-For-Duty evaluation requirements. Physical Activities: Light work–significant degree of walking or standing, lifting up to 20 lbs. of force occasionally and/or up to 10 lbs. of force frequently SUPERVISORY RESPONSIBILITIES: This position does not require any supervisor responsibilities. EMPLOYMENT-AT-WILL: Employment is at will, unless prohibited by local and/or state laws. Travel: Less than 10% Salary: $116,159.34 - $147,072.72 Compensation Details: $67,250.15 - $147,072.72 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: 10/21/2026 - 10/21/2026 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 https://www.amentum.com/ If you need a reasonable accommodation for any part of the employment process, please complete our Accommodation Request. Requests for accommodation will be considered on a case-by-case basis. If you need assistance, please reach out to workdaycandidateaccounts@amentum.com 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. Amentum will never as ask for a placement fee or any other fee to expedite the hiring process. If you are contacted by anyone offering employment with Amentum, you should never be asked to pay a fee for recruiting. Amentum personnel will always send email from an identifiable corporate account (ending in @amentum.com) and never from a public email account like Yahoo!, Google, Gmail, or Hotmail. If you are contacted regarding a fraudulent employment proposal, we encourage you to alert your local law enforcement agency/police authority. To read more about Amentum’s commitment to ethics, please click here.

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