Senior Software Engineer-Messaging & Communications Infrastructure

Company Description

About Zigment AI

Zigment is an agentic AI platform for revenue teams. We help businesses orchestrate intelligent conversations across every channel — turning prospects into customers without anything falling through the cracks. We're a small, high-output engineering team. Every engineer owns a domain

end-to-end — not tickets, not tasks, but real product ownership.

Role:-

You'll own the communications backbone of our platform — the layer that

connects our AI agents to every major messaging channel. This is infrastructure

ownership, not integration work. You'll be the person who decides how we handle

provider failures, guarantee message delivery, and scale reliably across channels.

What you'll do

- Own the reliability and uptime of all channel integrations end-to-end

- Design and maintain the webhook infrastructure that routes messages

 across all communication channels

- Own the voice infrastructure — inbound and outbound calling pipelines

- Be the on-call owner for communications layer incidents

- Drive architectural decisions on message delivery, retry logic,

 and cross-channel routing

- Work closely with the AI team to connect agent outputs to real-world channels

What we're looking for

- 4+ years of backend engineering experience

- Production experience with messaging APIs or communications infrastructure

- Strong understanding of webhook reliability, idempotency, and async systems

- Experience with queue-based architectures

- Comfortable debugging live production incidents on third-party APIs

- TypeScript/Node.js or Python (Django/Flask) experience

Bonus

- Voice infrastructure experience — VoIP or SIP

- Experience with multi-tenant SaaS platforms

What you'll get

- Full domain ownership

- Direct collaboration with the CTO and founding team

- Work on AI systems running at real production scale

- Access to all AI tools — Claude, Codex, Cursor, and more

- We are AI-native. You'll work with and build on the best AI stack available