# Senior VoIP Engineer at Tin Can

- Company: Tin Can
- What the company does: The super-magical Wi-Fi landline for kids. No screens, no texting, no strangers — just real conversation with Grandma, besties, and contacts you approve. Plug in, twirl that cord, and time-travel to pure voice fun. Backed by Greylock.
- Company website: https://tincan.kids/
- Type: Startups
- Level: Senior
- Location: Seattle
- Work setup: On-site
- Pay: $175K to $195K base salary per year (USD)
- Posted: 2026-08-24
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/tin-can/70915b13-ef73-4c5f-a20a-0ec63aa5f72e
- Page: https://www.1752.vc/careers/jobs/tin-can-senior-voip-engineer/

## About the role

A call either connects or it doesn’t — there’s no partial credit when a kid picks up a Tin Can to reach Grandma, or to dial 911. We’re hiring a Senior VoIP Engineer to own the SIP and media plane that carries every one of those calls: how it routes, how it sounds, and how we know it works. It’s the first role dedicated entirely to that stack.

## What they're looking for

- 5+ years building and operating real-time voice systems in production, with hands-on Kamailio and FreeSWITCH depth
- You can hold your own on SIP and RTP: location services, dialog state, transfers, Path routing, NAT traversal, and what happens to media when a packet arrives late
- You’ve debugged live production calls from a packet capture and a SIP trace to root cause
- You treat config as code and infrastructure as reproducible
- Fluency using AI as a multiplier across diagnosis, analysis, and testing
- A clear communicator who writes things down

Tags: Technology