Junior VOIP Engineer (Onboarding & Support)

Role Overview

We are seeking a driven Junior VOIP Engineer to join our growing technical team. This role is ideal for someone with hands-on experience in FreeSWITCH who is looking to deepen their expertise in VoIP systems, contact center technologies, and real-time communications.

You will be responsible for supporting, maintaining, and assisting in the design of scalable voice infrastructure across our environments.

Key Responsibilities

• Assist in the design, deployment, and support of FreeSWITCH-based VoIP systems

• Configure and maintain dialplans, SIP profiles, gateways, and routing logic

• Monitor system performance and ensure high availability

• Troubleshoot call issues (call drops, one-way audio, latency, jitter, SIP errors)

• Support IVR systems, call queues, and contact center workflows

• Work with APIs and integrations (CRM systems, messaging platforms, third-party services)

• Analyze logs, SIP traces, and CDRs to diagnose and resolve issues

• Implement and maintain system security (fraud prevention, ACLs, firewall rules)

• Collaborate with internal teams including developers, QA, and support

• Document configurations, processes, and troubleshooting steps

Minimum Requirements

• 2 years of hands-on experience with FreeSWITCH

• Solid understanding of SIP, RTP, and VoIP fundamentals

• Experience working with Linux (Ubuntu/CentOS)

• Ability to configure dialplans (XML, Lua preferred)

• Experience with SIP trunking and carrier integrations

• Strong troubleshooting skills using tools like tcpdump and Wireshark

• Basic networking knowledge (NAT, firewalls, routing)

Nice to Have

• Experience with FusionPBX or other FreeSWITCH-based platforms

• Knowledge of scripting (Lua, Python, Bash)

• Familiarity with PostgreSQL or MySQL

• Exposure to cloud platforms (AWS, Azure, etc.)

• Experience in contact center or dialer environments

• Understanding of call recording and billing systems

• Experience with Asterisk is advantageous but not required

Key Skills & Attributes

• Strong analytical and problem-solving skills

• Good communication and teamwork abilities

• Ability to work in a fast-paced, high-availability environment

• Detail-oriented with a proactive mindset

• Eagerness to learn and grow

Working Conditions

• This is an in-office role based in Islamabad, Pakistan and Cape Town, South Africa

• Collaboration across both locations will be required

• May involve occasional after-hours support depending on system needs

What We Offer

• Exposure to enterprise-grade VoIP and contact center platforms

• Opportunity to work with international teams

• Growth and development in a rapidly evolving tech environment

• Supportive and collaborative workplace