Location: Remote
Employment Type: Full-Time
Shift: Flexible / As per business requirement, ideally 12:00 PM to 9:00 PM IST
About the Role
We are looking for an experienced and highly technical Director of VoIP Technology to lead the architecture, development, deployment, and optimization of our VoIP and real-time communication infrastructure.
The ideal candidate will have strong hands-on expertise in Asterisk, FreeSWITCH, SIP, WebRTC, open-source dialer ecosystems, and SIP routing technologies, combined with the ability to lead technical strategy, architecture decisions, and engineering initiatives.
This role will be responsible for building scalable, secure, reliable, and high-performance telephony platforms while providing technical leadership to engineering and operations teams.
Key Responsibilities
- Lead the overall VoIP technology strategy, architecture, and roadmap.
- Design, deploy, maintain, and optimize large-scale Asterisk and FreeSWITCH based VoIP infrastructure.
- Architect highly available and scalable SIP-based telephony and communication platforms.
- Lead Asterisk / FreePBX migrations, upgrades, customizations, and system optimization.
- Design and manage complex Dialplans, XML-based call flows, IVR/IVRS, and telephony logic.
- Architect inbound/outbound calling systems, call center platforms, conference bridges, voice broadcasting, and auto-reminder solutions.
- Lead development and implementation of AGI-based telephony automation and integrations.
- Design and optimize SIP trunking, call routing, load balancing, failover, and voice-quality management.
- Architect and support Kamailio / OpenSIPS based SIP proxy and routing environments.
- Lead WebRTC-based real-time communication solutions and browser-based voice platforms.
- Oversee deployment and optimization of open-source dialer platforms such as VicidialNow and OSDial.
- Drive the development and integration of voice loggers, call recording, monitoring, and real-time communication systems.
- Establish best practices for VoIP infrastructure security, scalability, reliability, monitoring, backups, and disaster recovery.
- Lead troubleshooting of complex production-level telephony, SIP, network, and infrastructure issues.
- Collaborate closely with Product, Engineering, DevOps, and Operations teams to deliver new communication capabilities.
- Evaluate emerging VoIP and real-time communication technologies and recommend improvements.
- Mentor and provide technical direction to VoIP engineers and development teams.
- Own technical documentation, architecture standards, performance benchmarks, and operational processes.
Required Experience & Technical Expertise
- 10+ years of experience in VoIP / Telephony infrastructure, communication platforms, and application development, with significant experience in technical leadership or architecture roles.
Strong hands-on and architectural expertise in:
- Asterisk | FreeSWITCH | SIP / VoIP | Dialplan Programming | XML Programming
- AGI Scripting | IVR / IVRS Design | Call Center Architecture | Conference Systems
- Voice Broadcasting | Auto Reminder Systems | Voice Logging / Call Recording
- SIP Trunking & Routing | SIP Proxy Architecture | WebRTC / Real-Time Communication
Strong working knowledge of:
- Kamailio | OpenSIPS |Open-source Dialer Platforms
- SIP Load Balancing & Failover | VoIP Monitoring and Troubleshooting
- Telephony Automation and Integrations
Experience with:
- VicidialNow | OSDial | ASTPP Billing Software
- Telephony Application Development
- API and Third-Party Integrations
- Real-Time Communication Platforms
- Programming & Scripting
Strong development/scripting experience with one or more of:
- Lua | Perl | PHP | NodeJS | Erlang | AGI
- cURL | Memcached | Infrastructure & Systems Expertise
Strong understanding of:
- Linux System Administration
- LAMP Stack
- WebRTC Infrastructure
- RabbitMQ
- Database Administration
- SIP/Network troubleshooting
- High Availability & Disaster Recovery
- Infrastructure Monitoring
- Server Performance Optimization
- Security and Access Management
- Database Experience
- Experience with relational databases and large-scale telephony data environments.
Knowledge of:
- Oracle
- MySQL / MariaDB
- Database optimization and administration
- Oracle OCP certification is an added advantage.
- Leadership & Strategic Capabilities
The successful candidate should be able to:
- Define and execute a long-term VoIP technology roadmap.
- Make architecture decisions for scalable and high-availability communication systems.
- Lead technical teams and cross-functional engineering initiatives.
- Translate business requirements into scalable telephony solutions.
- Establish engineering standards, development practices, and operational processes.
- Identify and resolve complex technical challenges across VoIP, SIP, WebRTC, Linux, networking, and backend systems.
- Balance hands-on technical ownership with strategic technology leadership.
- Build a culture of reliability, automation, security, and continuous improvement.
Ideal Candidate:
We are looking for someone who is not only a strong Asterisk / VoIP engineer, but also a technology leader capable of owning the complete communication technology stack—from SIP signaling and telephony architecture to WebRTC, dialers, backend systems, infrastructure, scalability, and engineering strategy.