Job Overview :

We are looking for an experienced C++ Developer with strong Cisco ISE expertise to design, develop, and manage secure network access solutions in large enterprise environments.

This role involves architecting Cisco ISE deployments, implementing Network Access Control (NAC), and developing troubleshooting solutions in a Linux environment using C/C++.

The ideal candidate will have deep experience in network security architecture, authentication protocols, and enterprise-scale infrastructure integration.

Key Responsibilities :

- Design and implement Cisco ISE architecture across enterprise networks.

- Manage Network Access Control (NAC) policies using technologies such as 802.1X, MAB, and RADIUS.

- Develop and troubleshoot C/C++ applications in Linux environments.

Integrate Cisco ISE with enterprise systems including :

- Active Directory / LDAP

- Wireless LAN Controllers (WLC)

- Network switches and firewalls

- Cisco DNAC / SDA environments

- Implement device profiling, guest access, and BYOD onboarding.

- Develop automation using Python, Ansible, and ISE APIs (ERS / pxGrid).

- Manage certificate lifecycle and EAP-TLS authentication.

- Perform troubleshooting, monitoring, and performance optimization of authentication infrastructure.

- Lead ISE upgrades, migrations, and large-scale deployments.

Required Skills :

- Strong C/C++ programming in Linux environment

- Deep expertise in Cisco Identity Services Engine (ISE)

- Knowledge of 802.1X, RADIUS, TACACS+, MAB

Network fundamentals :

- VLAN, STP. Routing, Segmentation

- Experience with Cisco DNAC, WLC, Catalyst switches

- Automation using Python / Ansible

- Experience with SIEM integration and monitoring tools

Good to Have :

- Knowledge of Zero Trust architecture

- Experience with Intune / Jamf / Azure AD

- Exposure to SD-WAN environments

- Experience with ClearPass or other NAC solutions