Infrastructure Engineer
Washington, DC
Category: IT Admin
Industry: Technology
Reference ID: JN -052026-107071
Date Posted: 07/19/2026
Shortcut: http://careers.eliassen.com/NNSUUD
Description:
Hybrid 3 days onsite / 2 days remote in Washington, DC
Our client seeks a Senior Infrastructure Engineer to manage and optimize on-premises and cloud network environments. The role supports network hardware, monitoring tools, and core services across data centers and cloud platforms. It requires collaboration across infrastructure teams, implementation of network security best practices, and participation in after-hours maintenance twice per month. This hybrid position is based in Washington, DC.
Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.
Rate: $60.00 to $70.00/hr. w2
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 in AWS and Google Cloud to support business applications and services.
- Configure and maintain VPCs, VPNs, Direct Connect, Transit Gateways, and hybrid cloud connectivity.
- Work with support staff to provide prompt resolution of network problems and requests.
- Collaborate with Workplace, Windows, Linux, Storage, Database, and Cloud teams.
- Implement network security best practices, including firewalls, NAC, 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, including after-hours maintenance twice per month.
- Work on-site several days each week with minimal travel as needed.
Experience Requirements:
- Five or more years of hands-on experience with:
- Cisco switching, routing (OSPF, BGP), firewalls (access-lists, VPN tunnels, remote access), and wireless access.
- F5 load balancing, Cisco ISE, WAF, and DNS/DHCP experience preferred.
- Network monitoring and management tools such as Site24x7, SevOne, or equivalents, and cloud-native monitoring.
- Experience with AWS Cloud including VPC, EC2, ALB/NLB, Transit Gateway, Routing, Security Groups/NACLs, Network Firewall, VPN, Direct Connect, CloudFormation, and IAM roles.
- Strong troubleshooting and research skills with a solid understanding of Layers 1 through 4.
- Ability to deploy, configure, and troubleshoot Cisco access-layer switches.
- Ability to troubleshoot wired, wireless, VPN, cloud (AWS/GCP), and Internet connectivity.
Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.
W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:
· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.
If you have any indication of fraudulent activity, please contact fraud@eliassen.com.
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Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Applicants with disabilities that believe they require an accommodation or assistance with a position, please email our HR team at hradmin@eliassen.com. This email inbox is designed exclusively to assist job seekers whose disability prevents them from being able to apply online. Emails sent for other purposes will not receive a response.
Please be advised that a number of fraudulent job postings have been released under the Eliassen Group brand.
Unfortunately, fraudulent job postings can happen. If anyone reaches out to you about an open position connected with Eliassen Group, never provide personal or financial information to anyone who is not clearly associated with Eliassen Group
If anyone seemingly from Eliassen Group has ever requested this personal information in the past or does so in the future, please contact fraud@eliassen.com.
Please ensure that you are working directly with us by confirming the following:
- When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
- Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group, as indicated above