Networking Infrastructure Engineer

We are seeking a highly experienced Networking Infrastructure Engineer with a minimum of 10 years of hands-on experience in the design, installation, and maintenance of enterprise networks and systems operations.

Key Responsibilities

· Monitor, maintain, and support multiple large-scale network infrastructures with varying security postures.

· Collaborate with the Senior Infrastructure Architect and Senior Infrastructure Engineer to ensure optimal network performance and security.

· Perform after-hours work and respond promptly to network or systems emergencies with minimal supervision.

· Apply expert-level troubleshooting skills in a high-availability, 24/7 enterprise environment

Required Technical Expertise

· Routing Protocols: OSPF, BGP, Multicast (PIM, DVMRP)

· Network Design: VLAN design and migration

· Security: Policy-enabled networking, Access Control Lists, Endpoint Integrity, Firewalls

· Authentication & Access Control: Network Access Control, IDS/IPS, EAP/PEAP, RADIUS, Certificate Authorities

· Protocols & Services: SNMPv3, SSH, SSL, Active Directory, DHCP, DNS, IAS

· High Availability & Redundancy: VOIP, VRRP, Disaster Recovery

· Hardware & Standards: Multi-vendor network hardware, troubleshooting up to 100 GB standards

Desirable Knowledge

· SCADA systems

· IP Address Management (IPAM)

· PCI compliance

· Wavelength Division Multiplexing (WDM)

· MACsec encryption

Additional Desired Skill Sets

Software:

· NetSight

· NetBox

· Unimus

· EfficientIP

· NPS (RADIUS)

Hardware:

· Extreme (S-Series, VOSS, EXOS)

· Arista

Essential Functions

Physical Requirements

· Must be able to lift at least 70 pounds

· Must be able to walk long distances as part of infrastructure support duties

Soft Skills & Professionalism

· Strong written and verbal communication skills for documentation and reporting

· Ability to work independently and collaboratively in a high-performance team

· Demonstrated use of best practices and adherence to security policies and procedures

Compensation Details:

$102,000

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:

08/17/2026 - 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.