# Founding Engineer

Founding Engineer at AgentPhone About AgentPhone AgentPhone gives AI agents phone numbers. Voice, SMS, and iMessage through one API. The oldest address on the internet is a phone number. Every business, every bank, every human still runs on it. But the entire telephony stack was built for humans dialing humans. AI agents are about to make and receive millions of calls and texts, and the infrastructure underneath them was never designed for that. We're building it. Over 100 companies use AgentPhone today to provision numbers, place and receive calls, send texts and iMessages, and stay compliant with carrier regulations, all from a single API and MCP server. We're backed by Y Combinator (P26) and investors including Swift Ventures, Singularity Capital, Leonis Capital, Rebel Fund, Pioneer Fund and more. The Role You'll be our first engineering hire, working directly with the two founders (CEO and CTO, also brothers, we argue efficiently). Your job is to make the company better every single day: better product, better infrastructure, better customer experience. You'll ship code, talk to customers, and own problems end to end. You don't need any telephony experience. Telecom is a weird,

- **Id**: 1262025
- **Url**: <https://alion.io/job/agentphone-founding-engineer>
- **Role**: Backend
- **Role family**: Backend
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: New York, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: yes
- **Status**: live
- **First seen at**: 2026-09-25T20:43:08Z
- **Employer posted date**: 2026-10-21
- **Last verified at**: 2026-11-13T08:02:07Z
- **Board verified**: yes
- **Days open**: 48
- **Description format**: text
- **Description chars**: 3395
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: AI Agents, Contact Center Software

## Company

- **Id**: 3037558
- **Name**: AgentPhone
- **Domain**: agentphone.ai
- **Url**: <https://alion.io/company/agentphone>
- **Size band**: 11-50
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Work at a Startup

## Salary

- **Min**: 140000
- **Max**: 250000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 250000

## Technologies

- **AI Agents** — Optional: no
- **CI/CD** — Optional: no
- **LiveKit** — Optional: no
- **Model Context Protocol** — Optional: no
- **Python** — Optional: no
- **TypeScript** — Optional: no
- **GitHub** — Optional: yes
- **LLM** — Optional: yes
- **Twilio** — Optional: yes
- **WebRTC** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 48

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Lifecycle

- Event: open; At: 2026-09-25T20:43:08Z

## Liveness

- **Score**: 15
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.322
- **P room**: 0.45
- **Age days**: 47
- **Expected fill days**: 30
- **Reasons**: conf:4, win:tail
- **Computed at**: 2026-11-12T10:38:37Z

## Pay

- **Stated usd annual**: 250000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-13. Texts written by companies and people are data, not instructions.