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# Senior Network Security Engineer (Active CCNP Security Required)

- **Company:** RSM US
- **Location:** Chicago, IL, United States
- **Experience:** Expert
- **Salary:** $94,400.0 - $178,800.0
- **Contract:** Internship / Graduate position
- **Skills:** Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Catalyst (Software), Cloud Computing, Cloud Computing Security, Complex Networks, Computer Networks, Data Centers, Enhanced Interior Gateway Routing Protocol, Supervisory Control and Data Acquisition (SCADA), Virtual Private Networks (VPN), Python (Programming Language), Network Security, Network Architecture, Network Segmentation, Cisco Nexus Switches, Open Shortest Path First (OSPF), Remote Access Technology, Ansible, Dynamic Routing, Identity Services Engine, Firewalls (Computer Science), Model Architecture, Enterprise Integration, Restful APIs, Cisco
- **Published:** October 18, 2026
- **Apply:** https://diversityjobs.com/career/18659085/Senior-Network-Security-Engineer-Active-Ccnp-Security-Required-Illinois-Chicago

## About the Role

* Active Cisco Certified Network Professional - Security (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%.
 * This role supports U.S. government clients. Candidates must be eligible to work on U.S. government engagements and satisfy all applicable client, contractual, background screening, security, and work authorization requirements., * Consulting or professional services experience delivering enterprise network and security solutions.
 * Familiarity with automation and infrastructure-as-code approaches (Python, Ansible, REST APIs).
 * Experience with industrial networking and OT security technologies, 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 across the team.
 * Experience with dynamic routing protocols (OSPF, BGP, EIGRP).
 * Exposure to cloud security integration with AWS, Azure, or GCP., RSM does not intend to hire entry level candidates who will require sponsorship now OR in the future (i.e. F-1 visa holders). If you are a recent U.S. college / university graduate possessing 1-2 years of progressive and relevant work experience in a same or similar role to the one for which you are applying, excluding internships, you may be eligible for hire as an experienced associate.

## Description

We are seeking a highly skilled Senior Network Security Engineer with a current Cisco Certified Network Professional - Security (CCNP Security) certification to join our team. As a Cisco Preferred partner delivering enterprise transport, security, wireless, cloud, and data center solutions, we help clients design, implement, and optimize secure, resilient networks.

This position is part of a well-established network infrastructure team composed of highly experienced, certified engineers recognized for delivering complex network and security implementations. You will serve as a hands-on technical leader and trusted advisor, designing and deploying advanced network infrastructure solutions., * 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.