Senior Network Security Architect (CCNP Security)

RSM US LLP; Inwood (TX); On-site; USD 94,000 - 179,000; Full time

Job summary

RSM US LLP in Texas is seeking a Senior Network Security Engineer with CCNP Security certification to join our infrastructure team. You will design and deploy advanced network security solutions for enterprise clients, including firewall, VPN, and secure remote access, while guiding junior engineers.

The role requires 5+ years of experience, strong Cisco technology expertise, and the ability to engage with technical and executive stakeholders. Travel up to 10% and eligibility to work on U.S.

Qualifications

• Active CCNP Security certification.
• 5+ years of progressive experience 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.
• Proven ability to serve as a senior technical escalation point, providing advanced troubleshooting and root cause analysis for complex client issues.
• Strong communication and presentation skills with the ability to engage technical and business stakeholders.
• Ability to travel up to 10%.

Responsibilities

• Network Architecture & Design – 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.
• Implementation Leadership – Lead the deployment and integration of complex security solutions including Cisco Secure Firewall, Cisco Secure Access, Cisco Umbrella, Cisco ISE, and Cisco Meraki.
• Network & Security Optimization – Conduct in-depth assessments of client environments, identify gaps in security posture or policy enforcement, and deliver recommendations to improve resilience, compliance, and performance.
• Escalation & Problem Resolution – Act as a senior escalation point for critical incidents from managed clients, providing root-cause analysis, remediation plans, and long-term corrective actions.
• Client Advisory & Engagement – Engage with technical and executive stakeholders to align security architectures with business objectives. Deliver technical workshops, roadmap sessions, and security assessments.
• Cross-Domain Collaboration – Partner with cloud, infrastructure, and managed services teams to design holistic solutions that span security, networking, and application delivery.
• Knowledge Sharing & Mentorship – Mentor junior engineers and contribute to internal best practices and reference architectures to elevate overall team capability.

Skills

CCNP Security

Firewall design

VPN/Remote access

ISE

Meraki

Education

CCNP Security certification

Tools

Cisco Secure Firewall (FTD/ASA)

Cisco Secure Access

Cisco Umbrella

Cisco ISE

Cisco Meraki

Catalyst/Nexus

Meraki stack

SASE solutions

Job description

RSM US LLP in Texas is seeking a Senior Network Security Engineer with CCNP Security certification to join our infrastructure team. You will design and deploy advanced network security solutions for enterprise clients, including firewall, VPN, and secure remote access, while guiding junior engineers.

The role requires 5+ years of experience, strong Cisco technology expertise, and the ability to engage with technical and executive stakeholders. Travel up to 10% and eligibility to work on U.S.