Senior Network Security Engineer | CCNP Security Lead

rsm; Town of Texas (WI); On-site; USD 120,000 - 160,000; Full time

Job summary

RSM is seeking a Senior Network Security Engineer to design and deploy secure, resilient networks for enterprise clients. You will lead architecture efforts and hands-on deployments, partner with cloud and managed services teams, and serve as a senior escalation point on complex issues.

The role focuses on Cisco security portfolio, with opportunities to mentor peers and influence security posture across engagements. Travel up to 10% is expected.

Qualifications

• Active CCNP Security certification.
• 5+ years designing, implementing, and supporting enterprise-class network and security solutions.
• Deep technical expertise in firewall design and deployment, network segmentation, VPN and remote access, identity services (Cisco ISE), and SSE technologies.
• Strong working knowledge of core routing and switching technologies.
• Hands-on experience with Cisco Secure Firewall (FTD/ASA), ISE, Catalyst and Nexus platforms, Meraki stack, and Secure Access/SASE solutions.

Responsibilities

• Architect and document end-to-end network security solutions including next-generation firewalls, SDWAN, segmentation, secure remote access, identity-based access control, and SASE frameworks following vendor validated designs and best practices.
• Lead the deployment and integration of complex security solutions including Cisco Secure Firewall, Cisco Secure Access, Cisco Umbrella, Cisco ISE, and Cisco Meraki.
• Conduct in-depth assessments of client environments, identify gaps in security posture or policy enforcement, and deliver recommendations to improve resilience, compliance, and performance.
• Act as a senior escalation point for critical incidents from managed clients, providing root-cause analysis, remediation plans, and long-term corrective actions.
• Engage with technical and executive stakeholders to align security architectures with business objectives. Deliver technical workshops, roadmap sessions, and security assessments.
• Partner with cloud, infrastructure, and managed services teams to design holistic solutions that span security, networking, and application delivery.
• Mentor junior engineers and contribute to internal best practices and reference architectures to elevate overall team capability.

Skills

CCNP Security

5+ years experience

Firewall design

Network security architecture

SSE technologies

VPN/Remote access

ISE (Cisco Identity Services Engine)

Education

CCNP Security certification

Tools

Cisco Secure Firewall (FTD/ASA)

Cisco ISE

Cisco Meraki stack

Catalyst/Nexus platforms

Job description

RSM is seeking a Senior Network Security Engineer to design and deploy secure, resilient networks for enterprise clients. You will lead architecture efforts and hands-on deployments, partner with cloud and managed services teams, and serve as a senior escalation point on complex issues.

The role focuses on Cisco security portfolio, with opportunities to mentor peers and influence security posture across engagements. Travel up to 10% is expected.