Sr. Network Engineer #11768

ECCO Select is a talent acquisition and consulting company specializing in people, process and technology solutions. We provide the talent behind the technology enabling our clients to achieve their goals. For more information about ECCO Select, visit us at .

Position Title: Sr. Network Engineer

W2 only - no C2C

Active TS/SCI clearance (required)

Location: Washington DC (hybrid)

Position Responsibilities:

As a Sr. Network Engineer, you will be responsible for the design, implementation, and ongoing support of complex network infrastructures. This includes overseeing technical refresh, hardware replacements, and network migration projects. You will provide advanced troubleshooting across a diverse enterprise network environment, ensuring the highest levels of performance, security, and reliability. The ideal candidate will bring expert-level knowledge of Cisco routing and switching platforms and a proven ability to address and resolve network issues spanning VLANs, trunking, STP, OSPF, BGP, QoS, LACP, ARP, and security. You will also be expected to create and maintain detailed network documentation, collaborate with multidisciplinary teams, and support enterprise operational initiatives. Daily responsibilities will be performed onsite.

Essential Skills, Experience

• 10–12 years of hands-on experience in network engineering, with a focus on routing and switching.

• Demonstrated success supporting large-scale technical refresh, replacement, or migration efforts.

• Advanced expertise with Cisco technologies, including Cisco routing and switching platforms, Cisco Identity Services Engine (ISE), and Cisco Catalyst Center.

• Deep understanding and practical troubleshooting in areas such as VLANs, trunking, Spanning Tree Protocol (STP), OSPF, BGP, Quality of Service (QoS), Link Aggregation Control Protocol (LACP), Address Resolution Protocol (ARP), and other related protocols.

• Familiarity with enterprise-level and/or Department of Defense (DoD) security concepts.

• Proven ability to communicate complex technical information clearly, both in writing and verbally, to technical and non-technical stakeholders.

• Exceptional problem-solving skills and a strong attention to detail; able to work independently and proactively address issues.

• Experience with enterprise network operations environments, supporting uptime, documentation, and consistent improvement.

• High level of self-motivation, organization, and drive.

Qualifications:

• Active TS/SCI clearance (required)

• Ability to work onsite in Washington DC

• DoD 8570 IAT Level II certification (required)

• Cisco Certified Network Professional (CCNP) and/or Cisco Certified Internetwork Expert Routing & Switching (CCIE R&S) preferred

ECCO Select is committed to hiring and retaining a diverse workforce. Our policy is to provide equal opportunity to all people without regard to race, color, religion, national origin, ancestry, marital status, veteran status, age, disability, pregnancy, genetic information, citizenship status, sex, sexual orientation, gender identity or any other legally protected category. Veterans of our United States Uniformed Services are specifically encouraged to apply for ECCO Select opportunities.