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Key Responsibilities:
? Provide Level 2 support for IPTEL (Zoom and Boss4U, Voice Gateways, SIP, etc.) and Infoblox DDI (DNS, DHCP, IPAM) platforms.
? Monitor and troubleshoot voice, telephony, and DNS/DHCP/IPAM issues, ensuring prompt resolution.
? Perform system configurations, upgrades, and patches for IPTEL and Infoblox environments.
? Work closely with Level 1 support teams, escalating issues as necessary and providing guidance for resolution.
? Implement network changes following established change management processes and best practices.
? Conduct root cause analysis for recurring issues and drive continuous improvement initiatives.
? Assist in IPTEL and Infoblox system integrations, migrations, and expansion projects.
? Maintain documentation related to configurations, troubleshooting guides, and standard operating procedures.
? Ensure compliance with security policies and industry best practices in IPTEL and Infoblox administration.
? Collaborate with vendors and service providers to resolve technical issues and optimize performance.
Requirements:
? Bachelor’s degree in Computer Science, Information Technology, or a related field.
? Minimum 3-5 years of experience in IPTEL (Zoom, Cisco VoIP, CUCM, SIP, Boss4U, Voice Gateways) and Infoblox DDI (DNS, DHCP, IPAM).
? Strong troubleshooting skills in network voice and DDI technologies.
? Experience with call routing, dial plans, QoS, and VoIP security best practices.
? Familiarity with network protocols (TCP/IP, SIP, H.323, SNMP, BGP, etc.).
? Hands-on experience with Cisco IPTEL solutions and Infoblox Grid technology.
? Working knowledge of network automation and scripting (Python, Ansible) is a plus.
? Certification such as CCNP Collaboration, CCNP Enterprise, or Infoblox certifications (NIO, NIOS Security) is preferred.
? Excellent communication and problem-solving skills.
? Ability to work independently and collaboratively in a fast-paced environment.
? Experience in a large-scale enterprise or service provider environment.（nice to have）
? Knowledge of security frameworks related to DNS security, voice security, and compliance requirements.（nice to have）
? Exposure to cloud-based IPTEL and DNS solutions (AWS Route 53, Azure DNS, etc.).（nice to have）