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 an IT Operations & Maintenance Manager to support our team. The IT Operations & Maintenance manager will oversee design, implementation, operations, and maintenance of IT infrastructure. Manage IT Operations personnel. Interface with LM client to optimize LM Enterprise Network performance within the constraints of budget and cybersecurity ensuring the needs of the LMSP customers are met.

JOB ESSENTIAL DUTIES/RESPONSIBILITIES

Lead IT Operations and Maintenance (IT O&M) Department personnel ensuring each team member performs his/her job safely. Primarily responsible for the reliable and secure operation of the LM Enterprise Network and providing help desk and desktop support to LM clients and LMSP customers. Communicate with the Client and LMSP customers to understand short-term and long-term goals including desired upgrades to the Network and provide status of IT O&M activities. Ensure the IT O&M team provides excellent customer service by understanding the needs of the LMSP customer and the mission of DOE-Legacy Management. Manage Fiscal Year budgets for IT O&M. Identify and provide constructive feedback to employees and provide mentorship as appropriate. Actively coordinate the recruitment of staff. Approve Standard IT Operating Procedures (SOPs) for Network Operations Team. Represent LM and LMSP in a professional manner. Demonstrate excellent technical skills and proficiency with design, implementation, and support of Microsoft solutions, enterprise server, storage, network, and virtualization components. Other duties as assigned.

Travel:

Less than 10% EDUCATION, LICENSE, CERTIFICATION, and

EXPERIENCE

Education:

Bachelor's degree in computer science or related STEM field.

Experience:

Minimum of 10 years of IT experience, with 5 of those years in leadership.

Licenses:

Valid Driver's License Certifications:

No professional certification required

REQUIRED SCREENINGS

1.Drug Screen 2.Physical Assessment (if applicable) 3.Background Check (Criminal, Civil, Educational, Previous Employment, etc.) 4.Driver Record Screen (for positions requiring on-the-job-driving)

REQUIRED SKILLS/ABILITIES

Experience in IT Operations and/or IT Projects. Experience with Leading Technical Teams Ability to work independently and as part of a team. Demonstrated experience managing department budget Strong communication skills and demonstrated focus on exemplary customer service Technical background in enterprise environments to support team interaction, project estimation, and project management engagement. Legacy Management Support (LMS)

Organizational Core Values:

One Team, One Mission Successfully 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

Physical Activities:

Sedentary:

Work involves exerting up to 10 pounds of force occasionally or a negligible amount of force frequently to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time but may involve walking or standing for brief periods of time. Jobs may be defined as sedentary when walking and standing are required only occasionally, and all other sedentary criteria are met.

SUPERVISORY RESPONSIBILITIES

This position provides direct/indirect supervision to (department) staff under their charge.

EMPLOYMENT-AT-WILL

Employment is at will, unless prohibited by local and/or state laws.

Compensation Details:

$164,701.72

• $208,533.

63 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:

09/09/2026

• 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 .