IT Network Engineer - PBX

CallTek; Philippines; On-site; PHP 360,000 - 600,000; Full time

Job summary

CallTek in the Philippines is seeking a skilled IT/VoIP engineer to configure PBX systems, install softphones, manage DIDs/TFNs, and maintain user accounts.

You will design flows/IVRs, monitor network performance, troubleshoot issues, and document solutions while supporting security/compliance and SLA adherence.

Qualifications

• IT / Computer Science related degree or certification.

Responsibilities

• Perform configuration and maintenance of PBX Systems. Including installation and configuration of softphones, managing User Accounts, Creation/Deletion of Queues/Flows, DIDs/TFNs, Extensions, Voicemails etc.
• Carry out Flows/IVRs and Call Routing design and implementation
• Monitor network performance
• Troubleshoot Network Infrastructure issues.
• Provide technical support to end users, resolving hardware and software issues efficiently
• Diagnose problems, implement solutions, and elevate as necessary
• Maintain documentation of common problems and solutions
• Maintain service level agreements (SLA)
• Handle routine system maintenance (network/software/PBX)
• Participate in backup testing, business continuity, and recovery drills
• Log ticket issues and document relevant information to come up with a resolution
• Work with Security and Compliance to ensure IT infrastructure compliance with organizational policies, procedures, and industry standards
• Collaborate with other teams - Corporate Connectivity, Managed Services, Engineering, Security, and Compliance
• Help identify opportunities for process improvement, recommendations, upgrades, or new technologies
• Able to stay current with industry trends and best practices to enhance operational efficiency

Skills

SIP, RTP, WebRTC

PBX/Voice network design

Voice codecs optimization

Network troubleshooting

Documentation & SOPs

Team collaboration

Adaptability

Time management

Communication skills

Education

IT / Computer Science degree or certification

Tools

Zoom Phone

Zoom Contact Center

Mitel

Vanilla Asterisk

Job description

• Perform configuration and maintenance of PBX Systems. Including installation and configuration of softphones, managing User Accounts, Creation/Deletion of Queues/Flows, DIDs/TFNs, Extensions, Voicemails etc.
• Carry out Flows/IVRs and Call Routing design and implementation
• Monitor network performance
• Troubleshoot Network Infrastructure issues.
• Provide technical support to end users, resolving hardware and software issues efficiently
• Diagnose problems, implement solutions, and elevate as necessary
• Maintain documentation of common problems and solutions
• Maintain service level agreements (SLA)
• Handle routine system maintenance (network/software/PBX)
• Participate in backup testing, business continuity, and recovery drills
• Log ticket issues and document relevant information to come up with a resolution
• Work with Security and Compliance to ensure IT infrastructure compliance with organizational policies, procedures, and industry standards
• Collaborate with other teams - Corporate Connectivity, Managed Services, Engineering, Security, and Compliance
• Help identify opportunities for process improvement, recommendations, upgrades, or new technologies
• Able to stay current with industry trends and best practices to enhance operational efficiency

Requirements

• IT / Computer Science-related degree or certification.
• Knowledge in SIP, RTP and WebRTC, including voice codecs to optimize audio quality
• Knowledge in Zoom Phone and Zoom Contact Center, Mitel, Vanilla Asterisk and other Asterisk based PBX Systems
• Proficient in configuring, Flows, Routing, Integrations etc. This includes scripting and APIs
• Knowledge of SBC, MBG, and firewalls to secure voice networks, with a strong understanding of LAN/WAN routing and VLANs.
• Knowledge in Mikrotik, Tailscale and Netskope is a plus
• Able to use Wireshark or other network packet tracer to diagnose call drops and SIP messages
• Strong problem-solving and analytical abilities
• Communication skills (technical and non-technical audiences)
• Time management and ability to prioritize tasks
• Team collaboration and customer service orientation
• Adaptability and willingness to learn new technologies
• Attention to detail and documentation practices