TE21P4 Infrastructure Engineer

Infrastructure Engineer

Job Category: Information Technology Requisition Number: TE21P001949

Posted: March 18, 2026

Full-Time

Hybrid

ACS Washington, DC 20036, USA

Description

Position Responsibilities:

• Perform ongoing network maintenance, diagnostics, and design for 500+ nodes across multiple locations.
• Administer switches, routers, firewalls, wireless access controllers, load balancers and DNS/DHCP.
• Monitor network performance and troubleshoot network-related issues.
• Manage and optimize cloud network architectures (e.g., AWS, Google Cloud) to support business applications and services.
• Configure and maintain Virtual Private Clouds (VPCs), VPNs, Direct Connect, Transit Gateways and hybrid cloud connectivity.
• Work with ACS support staff to provide prompt resolution of staff network problems and requests.
• Collaborate with Workplace, Windows, Linux, Storage, Database, and Cloud teams.
• Implement network security best practices, including firewalls, NAC (Network Access Controls), and segmentation strategies across on-premises and cloud environments.
• Work with ISPs to ensure reliable Internet connectivity and performance.
• Provide services outside of core working hours as required.
• Position requires being on-site several days a week and minimal travel may be required.

Experience:

• Minimum of five years of hands-on experience in the following areas:
• Cisco switching, routing (OSPF, BGP), firewall (access-lists, VPN tunnels, remote access), and wireless access.
• F5 Load balancing, Cisco ISE, WAF and DNS/DHCP experience are desirable.
• Proficiency in network monitoring and management tools (e.g., Site24x7, SevOne or equivalent) and cloud-native monitoring solutions.
• Experience with AWS Cloud in the following areas:
• VPC, EC2, ALB/NLB, Transit Gateway, Routing, Security Groups/NACLs, Network firewall, VPN, Direct Connect, CloudFormation, and IAM roles.

Skills:

• Excellent troubleshooting and research skills.
• Strong interpersonal skills.
• Ability to deploy, configure, and troubleshoot Cisco access-layer switches.
• Ability to troubleshoot wired, wireless, VPN, cloud (AWS/GCP), and Internet connectivity.
• Solid understanding of L1-L4 network layers.
• Ability to practice logical troubleshooting techniques.

This role is based in our Washington, DC office. A reasonable rate of compensation for this position is $140,000- $160,000 per year.

ACS currently provides the following benefits for this position: paid vacation leave, paid sick leave, paid holidays, health insurance, flexible spending account or health care savings account, dental insurance, life insurance, vision insurance, retirement benefits, short- and long-term disability, and 4-week work from anywhere; each benefit is subject to the terms of the applicable program. Additional benefits may apply based on skills, experience, and location.

Any actual offer of employment, reflecting the total compensation package and benefits, will be made in the sole discretion of ACS. ACS reserves the right to amend or modify its employment benefits and compensation structure at any time.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.