Programmable-Voice Reliability Engineer

KaiCalls; Northern (KY); Hybrid; USD 140,000 - 185,000; Full time

Job summary

KaiCalls is seeking a seasoned engineer to own programmable voice operations, SIP systems, and carrier integrations, driving observability across call paths and outcomes. You will lead incident response, implement robust runbooks, and shape architecture to reduce recurrence while ensuring reliable porting and failover.

Experience with distributed systems, idempotency, and monitoring is required, along with clear communication under pressure. Remote work from the US is supported.

Qualifications

• Deep production ownership of programmable voice, SIP, or carrier systems.
• Strong distributed-systems debugging and incident leadership.
• Experience with idempotency, retries, failover, and observability.
• Clear communication under pressure.

Responsibilities

• Own SIP, PSTN, programmable voice, call control, phone-number lifecycle, webhooks, recordings, and failover.
• Build observability across call legs, provider receipts, application state, and customer-visible outcomes.
• Lead incidents and reduce recurrence through tests, runbooks, and architecture changes.
• Support porting, forwarding, carrier escalation, and emergency rollback.

Skills

Programmable voice ownership

SIP & carrier systems

Distributed-systems debugging

Incident leadership

Observability

Tools

Node

TypeScript

PostgreSQL

Job description

KaiCalls is seeking a seasoned engineer to own programmable voice operations, SIP systems, and carrier integrations, driving observability across call paths and outcomes. You will lead incident response, implement robust runbooks, and shape architecture to reduce recurrence while ensuring reliable porting and failover.

Experience with distributed systems, idempotency, and monitoring is required, along with clear communication under pressure. Remote work from the US is supported.