Senior Technical Engineer (Cisco & Zscaler)

Client of Envision Employment Solutions

Responsibilities:

• Incident & Operations Leadership: Leading P1/P2 incident management activities, crisis coordination, root cause analysis (RCA), and service restoration within SLA targets.
• Cisco ISE & NAC Management: Managing and optimizing Cisco ISE environments including 802.1X, MAB, posture assessment, profiling, PKI, and policy administration.
• Zscaler Administration: Administering ZIA/ZPA policies, secure access integrations, GRE/IPSec tunnels, authentication systems, and secure web access operations.
• Voice & Collaboration Support: Supporting SIP trunks, SBCs, IVR/call routing, UC systems, and telephony integrations.
• Network Infrastructure Operations: Managing enterprise routing, switching, SD-WAN, QoS, VLAN/VXLAN, and Cisco infrastructure environments.
• Change & Release Governance: Planning, validating, reviewing, and executing operational changes while ensuring compliance with ITIL governance standards.
• Monitoring & Continuous Improvement: Maintaining dashboards, SOPs, runbooks, operational reporting, and automation initiatives.
• Stakeholder & Vendor Management: Coordinating with customers, vendors, carriers, engineering teams, and operational teams to ensure service stability and improvement.

• Technical Expertise: Strong knowledge of Cisco ISE, Cisco networking, SIP/RTP, SBCs, SD-WAN, Zscaler ZIA/ZPA, QoS, routing/switching, VLAN/VXLAN, and enterprise security operations.
• Certifications: Preferred certifications include CCNP, Cisco ISE certifications/training, Zscaler ZCCA-IA/ZCCA-PA, and ITIL Foundation.
• Additional Skills: Exposure to cloud security, automation, scripting, Python, or Ansible is considered an advantage.
• Soft Skills: Strong leadership, stakeholder communication, incident management, RCA, documentation, and operational governance skills.