Senior Network Engineer

Job Title: Senior Network Engineer

Duration (Contract): 9 Months

Client Location: Mechanicsville, VA 23116

Location Preference: Onsite

Job Description:

As a Senior Network Engineer , you will be responsible for the design, implementation, support, and optimization of enterprise network infrastructure. This role requires deep expertise in routing, switching, firewalls, SD-WAN, cloud networking, and network security to ensure high availability, scalability, performance, and reliability across complex enterprise environments.

Key Responsibilities:

• Design, implement, configure, and support enterprise network infrastructure including routers, switches, firewalls, VPNs, wireless networks, and load balancers.

• Troubleshoot and resolve complex network performance, connectivity, and infrastructure issues.

• Monitor network health, availability, capacity, and performance to ensure optimal operations.

• Develop and maintain network architecture diagrams, IP addressing schemes, firewall rules, and technical documentation.

• Collaborate with infrastructure, cloud, security, and DevSecOps teams to support hybrid and cloud-connected environments.

• Support SD-WAN implementation, optimization, and troubleshooting activities.

• Assist with installation, upgrades, maintenance, and lifecycle management of network infrastructure.

• Ensure compliance with security standards, architecture policies, and operational best practices.

• Perform disaster recovery planning, fault tolerance design, and network resiliency improvements.

• Work independently on network projects and provide recommendations for infrastructure modernization and optimization.

Required Skills, Experiences, Education, and Competencies:

• Strong hands-on experience with enterprise routers, switches, firewalls, VPN concentrators, wireless access points, and load balancers.

• Extensive experience designing, implementing, and troubleshooting enterprise LAN and WAN environments.

• Demonstrated expertise with networking protocols and technologies including OSPF, BGP, EIGRP, VLANs, 802.1Q, HSRP, QoS, MPLS, IPsec, RADIUS/TACACS+, SNMP, and EtherChannel.

• Experience working with SD-WAN technologies and hybrid network architectures.

• Strong knowledge of cloud networking concepts and connectivity architectures.

• Experience monitoring network performance, capacity, security, and availability metrics.

• Experience creating network topology and architecture diagrams using tools such as Microsoft Visio.

• Strong troubleshooting, analytical, documentation, and problem-solving skills.

• Experience implementing fault-tolerant, scalable, secure, and highly available network infrastructures.

• Industry networking certification such as Cisco CCNA, Cisco CCNP, Juniper JNCIA/JNCIS, or equivalent required.

The hourly range for roles of this nature are $40.00 to $80.00/hr. Rates are heavily dependent on skills, experience, location, and industry.

cyberThink is an Equal Opportunity Employer.