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Founding GTM Engineer

Proton.aiCambridge, MAMarketing
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Salary
Not listed
Job type
Full-time
Posted
9 May 2026
Status
Open · checked 7d ago

About this role

Proton.ai is seeking a Founding GTM Engineer in Cambridge, MA to design, build, and scale the revenue operations infrastructure that powers the company's growth. This senior individual contributor role is well-suited for a hands-on builder with deep expertise in AI, HubSpot, and Clay who wants to shape go-to-market systems from the ground up.

Role Overview

Revenue Operations functions as the engine room for the go-to-market team at Proton.ai. As the inaugural Founding GTM Engineer, this professional takes over responsibilities currently managed by an external agency, absorbing that scope and expanding it into clean data architecture, deal desk operations, compensation, forecasting, and AI-native workflows. Working out of the Cambridge office, the person in this position partners closely with marketing, sales, business development, customer success, and finance teams to make every representative faster and more efficient.

Key Responsibilities

Build autonomous AI agents from scratch to handle go-to-market workflows, including lead scoring, enrichment, outbound campaign creation, pipeline hygiene, signal monitoring, and forecast updates.
Manage the HubSpot technology stack from end to end, handling data models, automations, and reporting.
Construct outbound automation, signal-driven plays, and enrichment pipelines utilizing Clay.
Maintain end-to-end CRM hygiene, overseeing validation rules, deduplication, field governance, and ownership integrity to ensure reliable data.
Instrument the entire funnel from initial lead to closed-won deals while managing pipeline health and segment-level performance.
Create new-business and net revenue retention forecast models for executive board preparation.
Design territory coverage, accurate segmentation, and clean ownership transitions.
Research and deploy cutting-edge agentic AI tools, multi-agent orchestration, and model capabilities into production environments.

Requirements

Proven background in building revenue systems completely from scratch rather than just maintaining existing setups.
Advanced HubSpot expertise at both the administrative and architectural levels.
Extensive hands-on experience using Clay for data tables and workflows.
Strong passion for artificial intelligence with a habit of experimenting constantly and integrating AI into daily routines.
Production-level experience working with Claude or comparable models for automation, enrichment, and agentic workflows.
Exceptional data intuition paired with clear executive communication skills.
High agency, urgency, and the ability to thrive and ship projects autonomously in ambiguous environments.

Nice to Have

Weekend vibe coding and practical experience building MCP servers.

Skills and Tools

HubSpot
Clay
Claude and comparable AI models
Agentic AI and multi-agent orchestration
CRM data architecture and pipeline forecasting

Salary and Benefits

Base salary of $160,000
Quarterly performance bonuses
Meaningful equity options
Company-sponsored 401(k) program
Comprehensive health, dental, and vision insurance
Unlimited paid time off
Professional development budget for books, courses, and conferences
Encouragement to explore and adopt new productivity-enhancing AI tools

About the Company

Proton.ai develops AI infrastructure specifically designed for wholesale distribution, unifying customer relationship management, product information management, e-commerce AI, and order entry platforms into a single ecosystem. Backed by prominent investors such as Felicis Ventures and Battery Ventures, the company serves hundreds of leading distributors across industrial, HVAC, and electrical sectors.

How to Apply

Interested candidates should visit the official Proton.ai careers page to submit an application for this Founding GTM Engineer role.

Questions candidates ask

What is the location of the Founding GTM Engineer role?

The position is based in Cambridge, MA.

What compensation is provided for this position?

The role offers a $160,000 salary, quarterly performance bonuses, and meaningful equity.

What core tools are required for the job?

Candidates need deep expertise in HubSpot, Clay, and production-level AI models like Claude.

Is this an entry-level position?

No, this is a senior individual contributor role intended for someone who has built revenue systems from scratch.

What benefits are included?

Benefits include unlimited paid time off, health, dental, and vision insurance, a company-sponsored 401(k), and professional development funds.

Ready to apply?

The application is on the official Proton.ai careers page.

Apply on company site