Callab AI
AI voice agents for on-prem telephony stack.
Head of SDR
About the role
About Callab AI
Callab AI builds voice agents for enterprise contact centers. The company operates a proprietary carrier-grade telephony stack that integrates natively with on-premises infrastructure such as Cisco CUCM, Avaya, Mitel, and SIP trunks, allowing enterprises to deploy voice automation without migrating their telephony to the cloud.
The role
Callab AI is hiring a Head of Sales Development to build and scale the outbound function across enterprise contact centers, hospitality, BPOs, and systems integrators. The first phase is hands-on: the role personally runs outbound before recruiting and leading a team.
Responsibilities
- The role owns qualified meeting and pipeline targets.
- The Head of Sales Development recruits, onboards, and coaches SDRs.
- The role designs multi-channel outbound sequences for each target vertical.
- Outbound tooling, email infrastructure, and deliverability sit with this role.
Requirements
- Three or more years in B2B sales development, including experience leading SDRs, are required.
- A demonstrated record of building enterprise or mid-market outbound pipeline is required.
- Hands-on experience with cold email at scale, including deliverability, is required.
- Fluency in English is required.
About Callab AI
Callab AI builds voice agents for enterprise contact centers. The company is backed by Y Combinator (P26 batch), with deployments across North America, Europe, and the Middle East.
Most voice AI platforms depend on cloud telephony and third-party middleware, which breaks down inside large enterprises running on-premises systems such as Cisco CUCM, Mitel, and legacy SIP infrastructure. Callab AI built a proprietary carrier-grade telephony stack that connects natively to this infrastructure, so enterprises can deploy voice agents without migrating anything to the cloud.
Engineers at Callab AI work at the intersection of real-time voice AI and carrier-grade telecom infrastructure, an area where very few teams operate. The team is small and deeply technical, and every engineer owns systems end to end.
