Interactive Resources - iR ยท 6 hours ago
Senior Voip Specialist
Denver, CO
Full-time
Hybrid
Senior Level
5+ years expInteractive Resources - iR is seeking a Senior VoIP Specialist to serve as a technical leader for large-scale enterprise voice environments. This hands-on role involves improving performance, ensuring reliability, and shaping the future direction of voice platforms within a high-availability environment.
Human ResourcesInformation Technology
Responsibilities
Act as the subject matter expert for enterprise VoIP, SIP, and call center telephony systems
Lead advanced troubleshooting efforts for complex voice and signaling issues
Configure, maintain, and optimize SIP trunks, call routing, codecs, and QoS policies
Support and enhance large-scale Avaya environments (Communication Manager, Session Manager, SBC), including upgrades and future migrations
Collaborate with network, security, and infrastructure teams to maintain uptime and voice quality
Partner with telecom service providers to manage escalations, configuration changes, and performance optimization
Create and maintain technical documentation, SOPs, and knowledge base resources
Mentor junior team members and provide guidance on best practices and advanced troubleshooting
Contribute to roadmap planning and recommendations for new voice technologies and integrations
Qualification
Required
5+ years of progressive experience supporting or engineering enterprise VoIP/SIP environments
Deep understanding of SIP protocols, call flows, and signaling concepts
Hands-on experience with Avaya platforms or comparable systems (e.g., Cisco, Asterisk, Microsoft Teams Phone)
Advanced troubleshooting skills using tools such as Wireshark, SIP debuggers, and VoIP analyzers
Strong knowledge of QoS, SIP trunking, codec negotiation, and NAT/firewall traversal
Experience supporting environments with 10,000+ endpoints
Strong communication skills with the ability to engage both technical and non-technical stakeholders
Preferred
Experience supporting call center platforms or voice endpoint integrations
Exposure to cloud-based or hybrid VoIP architectures
Scripting or automation experience (Python, PowerShell, Bash)
Relevant certifications (Avaya, Cisco Collaboration, CompTIA Network+, or similar)
Benefits
100% employer-paid healthcare coverage
Fully funded Health Savings Account (HSA)
401(k) with match up to the maximum allowed
Company
Interactive Resources - iR
Interactive Resources is an information technology company that provides staffing and talent acquisition services.
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Bryan Carter
Founder & CEO
Derek Gaff
CFO
Company data provided by crunchbase