Senior Network Security Engineer (Active CCNP Security Required)

RSM•Dallas, TX

23d

About The Position

RSM is seeking a Senior Network Security Engineer with an active Cisco Certified Network Professional – Security (CCNP Security) certification. The role is part of an experienced network infrastructure team delivering enterprise transport, security, wireless, cloud, and data center solutions. The engineer will serve as a hands-on technical leader and trusted advisor, designing, deploying, and optimizing advanced network infrastructure solutions for clients, including U.S. government clients. The work focuses on security architecture, design, and optimization rather than repetitive Tier 1 or Tier 2 support. The role requires travel of up to 10%. Candidates must be eligible to work on U.S. government engagements and meet applicable client, contractual, background screening, security, and work authorization requirements. The engineer will architect and document network security solutions, lead complex security deployments and integrations, assess client environments, resolve critical incidents, advise technical and executive stakeholders, collaborate across technical domains, and mentor junior engineers. The position offers a competitive benefits and compensation package, schedule flexibility, and eligibility for a discretionary bonus based on firm and individual performance. The stated compensation range is $94,400–$178,800.

Requirements

Active Cisco Certified Network Professional – Security (CCNP Security) certification.
At least 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, and Secure Access/SASE solutions.
Proven ability to serve as a senior technical escalation point and provide advanced troubleshooting and root-cause analysis for complex client issues.
Strong communication and presentation skills, including the ability to engage technical and business stakeholders.
Ability to travel up to 10%.
Must be eligible to work on U.S. government engagements and satisfy applicable client, contractual, background screening, security, and work authorization requirements.

Nice To Haves

Consulting or professional services experience delivering enterprise network and security solutions.
Familiarity with automation and infrastructure-as-code approaches, including Python, Ansible, and REST APIs.
Experience with industrial networking and OT security, including ICS/SCADA systems, Purdue Model architecture, network segmentation, and secure integration of IT and OT environments.
Experience leading network segmentation or security modernization initiatives.
Experience mentoring and guiding junior engineers, fostering skill development, and promoting consistent best practices.
Experience with dynamic routing protocols, including OSPF, BGP, and EIGRP.
Exposure to cloud security integration with AWS, Azure, or GCP.

Responsibilities

Architect and document end-to-end network security solutions, including next-generation firewalls, SD-WAN, segmentation, secure remote access, identity-based access control, and SASE frameworks, following vendor-validated designs and best practices.
Lead deployment and integration of complex security solutions, including Cisco Secure Firewall, Cisco Secure Access, Cisco Umbrella, Cisco ISE, and Cisco Meraki.
Assess client environments, identify security posture or policy-enforcement gaps, and recommend improvements to resilience, compliance, and performance.
Serve as a senior escalation point for critical managed-client incidents, providing root-cause analysis, remediation plans, and long-term corrective actions.
Engage technical and executive stakeholders to align security architectures with business objectives; deliver technical workshops, roadmap sessions, and security assessments.
Collaborate with cloud, infrastructure, and managed services teams to design solutions spanning security, networking, and application delivery.
Mentor junior engineers and contribute to internal best practices and reference architectures.