# Founding GTM Engineer

**Company:** [AgentPhone](https://zerogtalent.com/ai-companies/agentphone)
**Location:** New York, NY, US
**Work mode:** On-site
**Employment type:** Full Time
**Salary:** USD 100K–150K/yr
**Category:** Engineering
**Department:** Marketing
**Listed:** 2026-11-13

[View and apply on Zero G Talent](https://zerogtalent.com/ai-jobs/agentphone/founding-gtm-engineer-122609)

## What you'll do

- Build and run acquisition experiments across paid channels and SEO
- Use AI coding tools, scripts, and APIs to build automations
- Measure results and decide where to invest next
- Work with specialist partners and own the brief
- Build the foundation for how AgentPhone acquires customers

## What you need

- 6+ months of relevant professional experience
- Hands-on growth or acquisition experience
- Technical independence with APIs and data
- Experience at software, AI, or developer-tool company
- Comfort with ambiguity and hands-on execution

## Job description

About AgentPhone

AgentPhone gives AI agents phone numbers for calls and messaging through a developer API. Our customers include voice AI companies, vertical AI businesses, and teams building AI assistants.

The role

We're hiring a Founding GTM Engineer to help more of the right customers discover and adopt AgentPhone. You'll work directly with the founders to build our growth engine: choose channels, run experiments, and turn what works into a repeatable way to acquire customers.

Your initial focus will be business customers and top of funnel. The founders lead sales conversations; you'll help create qualified demand, product adoption, and paying customers. This is a hands-on individual contributor role with room to shape our approach as the company grows.

What you'll do

• Build and run acquisition experiments across paid channels, SEO and generative engine optimization (GEO), referrals, partnerships, and product launches. Explore events where they can help us reach relevant customers.

• Understand how developers and AI businesses discover AgentPhone, what brings them to the product, and which channels attract customers who go on to use and pay for it.

• Use AI coding tools, scripts, APIs, and data to build automations, connect tools, pull insights, and launch experiments independently.

• Measure results, diagnose bottlenecks, and decide where to invest next based on qualified signups, pipeline, activation, customer adoption, and revenue.

• Work with specialist partners when useful, own the brief, and stay accountable for the outcome.

• Build the foundation for how AgentPhone acquires customers as the GTM team grows.

What you'll bring

• Credible hands-on growth or acquisition experience, or engineering experience with a clear transition into GTM and growth work.

• Technical independence: you can pull and analyze data, work with APIs, and use coding tools to turn an idea into a working experiment.

• You may be an engineer who moved into GTM, or a GTM/growth operator with practical technical experience. Both paths can be a strong fit.

• Relevant experience at a software, AI, or developer-tool product company. Firsthand experience helping a startup find and scale successful channels is especially useful.

• Comfort with ambiguity and hands-on execution. You can choose a starting point, ship, learn from the result, and keep improving it.

• You've graduated, have at least six months of relevant professional experience, and can work full-time.

Location and working arrangement

This is a full-time, in-person role in New York City. You must be based in NYC or willing to relocate to NYC to work with the team in person.

Why join

You'll work directly with the founders and own a central part of how AgentPhone grows. You'll have room to shape the channels, systems, and future GTM team around you.

When you apply

Tell us about a growth experiment, funnel, or technical project you contributed to: who you were trying to reach, what you built or ran, what changed, and what you learned. We'd also love to hear what you'd be excited to try at AgentPhone.

## Other open roles at AgentPhone

- [Founding Engineer](https://zerogtalent.com/ai-jobs/agentphone/founding-engineer-98603) — New York, NY, US / San Francisco, CA, US

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