Senior Network Engineer

Evolver is an information technology, cybersecurity, and digital transformation company supporting national defense, federal civilian agencies, and Fortune 500 organizations. We help customers secure critical systems, modernize enterprise technology, and solve complex operational challenges through integrated technology capabilities spanning cybersecurity, enterprise IT infrastructure, cloud, software development, data analytics, legal technology and eDiscovery, applied AI, and electronic security systems. Our teams combine deep technical expertise with mission understanding to deliver secure, reliable, and scalable solutions that advance performance in high-stakes environments.
Evolver Federal is looking for a Senior Network Engineer to join our team supporting our federal client located onsite in Washington, DC
This position requires a hybrid work environment with onsite work 3-5 days per week in Washington, DC depending on the requirements of the program
The Senior Network Engineer provides expert-level engineering support for mission-critical enterprise infrastructure. This key personnel role focuses on secure and resilient networking, Cisco technologies, hybrid-cloud connectivity, monitoring, outage response, incident support, documentation, and knowledge transfer.
Responsibilities

• Support enterprise routing, switching, internet connectivity, wireless infrastructure, VPN/ZTNA services, firewalls, and data center interconnections.
• Administer Cisco Catalyst 9000 switches, Cisco Secure Routers, Cisco ISE, 802.1X, Catalyst Center, ThousandEyes, and Cisco wireless systems.
• Monitor network availability, performance, capacity, device health, routing changes, alerts, and anomalies.
• Maintain network, firewall, VPN, DNS, wireless, cloud, syslog, and flow-log integrations with Microsoft Sentinel or another approved SIEM.
• Support multi-site data center connectivity, redundancy, failover, path validation, performance monitoring, and resiliency improvements.
• Support AWS hybrid connectivity, including routing, VPNs, security groups, network ACLs, cloud logging, and troubleshooting.
• Manage site-to-site IPsec tunnels, enterprise firewalls, remote-access VPN/ZTNA, network access control, and wireless authentication.
• Perform DNS, routing, packet capture, latency, and network-path analysis across on-premises, cloud, ISP, and partner environments.
• Lead outage response and root cause analysis, coordinate service restoration, and recommend corrective actions.
• Maintain network and security diagrams, configuration standards, SOPs, runbooks, traffic flows, logging paths, and recovery documentation.

Basic Qualifications

• US. citizenship with an active Top Secret security clearance and the ability to pass a comprehensive background check.
• 10 years of experience designing, implementing, securing, troubleshooting, and maintaining enterprise networks.
• 5 years of Cisco experience with Catalyst 9000 Series, Cisco Secure Routers, Cisco ISE, 802.1X, Catalyst Center, ThousandEyes, and wireless controllers/access points.
• 5 years of experience with BGP, OSPF, VLANs, VRFs, QoS, multicast, spanning tree, link aggregation, segmentation, high availability, and redundant WAN architectures.
• 5 years of experience with enterprise firewalls, IDS/IPS, remote-access and site-to-site VPNs, ZTNA, DNS, DHCP, IPAM, NAC, and secure hybrid connectivity.
• 5 years of experience integrating firewall, VPN, ISE, DNS, NetFlow, syslog, and cloud-network telemetry into SIEM platforms such as Microsoft Sentinel.
• 5 years of experience with vulnerability remediation, incident-response triage, traffic analysis, log correlation, network containment, and evidence preservation.
• 5 years of experience performing root cause analysis and produce clear technical findings, corrective actions, procedures, and operational documentation.

Preferred Qualifications

• Bachelor's degree in information technology, cybersecurity, engineering, computer science, or a related field.
• Relevant certification such as CCSE, CISSP, CISM, Security+, SC-200, or equivalent.
• AWS Advanced Networking Specialty or equivalent AWS/hybrid networking experience.
• Experience with Zero Trust architecture, Conditional Access, privileged access management, endpoint security, and security operations support.
• Ability to work independently in a fast-paced environment with strong communication and customer-service practices.

Evolver is an equal opportunity employer and welcomes all job seekers. It is the policy of Evolver not to discriminate based on race, color, ancestry, religion, gender, age, national origin, gender identity or expression, sexual orientation, genetic factors, pregnancy, physical or mental disability, military/veteran status, or any other factor protected by law.
Actual salary will depend on factors such as skills, qualifications, experience, market and work location. Evolver offers competitive benefits, including health, dental and vision insurance, 401(k), flexible spending account, and paid leave (including PTO and parental leave) in accordance with our applicable plans and policies.