Infrastructure Engineer

Infrastructure Engineer

Washington, DC

Type: Contract

Category: IT Admin

Industry: Technology

Reference ID: JN -052026-107071

Date Posted: 07/19/2026

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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.

Recruitment Transparency Notice

Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team ( View email address on click.appcast.io , View phone number on click.appcast.io) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group's use of these tools, including AI tools, as part of the application and hiring process.

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 View email address on click.appcast.io .

About Eliassen Group:

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients' capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.

Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.

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