Founding GTM Lead
Mason AI
San Francisco, CA, USA
USD 180k-250k / year + Equity
Posted on Jun 1, 2026
Founding GTM Lead
San Francisco
Sales
In office
Full-time
About Mason AI
Mason AI has cracked a research problem that went unsolved for over half a century: how to automatically check blueprints comply with the building codes. The challenge is that over a hundred thousand pages of building codes and referenced standards govern blueprints, and this complexity bottlenecks construction in America.
You will be the first sales hire at an early-stage, AI-native startup brimming with AI talent. Our product is lightyears ahead of the competition, and we need a top-rate Founding GTM lead to convert this technical leadership into a ripping business. You will have a massive impact on the company's future and the country's, as we accelerate American construction. Join us.
About the Role
We’re hiring our founding GTM Lead to build out Mason's full sales cycle and close major deals. You need to be a hunter and a learner.
This is a zero-to-one role. You'll build the sales deck, GTM stack, onboarding plan, and objection-handling scripts — all alongside the CEO. Learning comes first: for the first three months, you'll co-sell with the CEO, with a higher base salary while your pipeline ramps. Expect close, daily collaboration with the CEO and our In-House Chief Building Official on pricing, distribution, qualification criteria, and messaging.
What You’ll Do
- We have a small, known universe of prospects who fit our ICP. Very little of your time will be spent on prospecting, and most of your time will be spent on high-touch sales conversations earning trust, including outbound (via warm intros, events, office visits) and closing discovery calls into paying, referenceable customers. Expect biweekly travel.
- Write down what works and build the first sales playbooks (messaging, objection handling, sequences)
- As we grow: build a sales team within a year that executes on your playbook. This is a career-defining role and a chance to write your next chapter at an AI-native startup.
What Makes You a Fit
- You have gone 0->1 with B2B SaaS sales for either a new company or a new product within an existing company.
- Hunter: you are a competitive closer who has won net new logos at the mid-market or enterprise level
- AI-Pilled: you see AI is about to change work fundamentally, and you're game to learn new workflows
- You must be bought into Mason's vision of transforming how America builds.
What Success Looks Like
Over Months 1-3
- Hit the books and get in front of customers. You need to speak the language of our customer.
- Win three mid-market logos and convert them into referenceable customers
- Run experiments on pricing, messaging, and distribution that help us craft a repeatable sales formula
Over Months 3–12
- You win a six-figure expansion with at least one customer
- You help recruit new members of your sales org and empower them with a repeatable playbook
Benefits
- Competitive salary ($180,000 - $250,000 OTE).
- Generous early-stage equity (0.1%-1%).
- Free lunch and 7 pm dinners at a beautiful office.
- Fully paid health insurance with over $1000/year in employer contributions to an HSA.
- A 401(k) that accepts pre-tax and Roth contributions
- Employer contributions to a commuter benefits account and a monthly wellness benefit.
- Opportunity to shape the future of our country.
Interview process
We aim to make this happen in 1-2 weeks:
- Initial call (30 min) - Informal chat on your interests and experience.
- Mock Discovery Call (45 min) - We’ll send you a link to the product Mason and hypothetical customer time sheets (before and after Mason). You’ll showcase using the product, and we'll have you address common objections.
- Roadmap Debate (60 min) - Propose two 60-day roadmaps for building a repeatable sales formula at Mason. We'll share a brain dump of ideas for your consideration. Come prepared with a written brief outlining both roadmaps, a clear recommendation, and we'll debate it live.
- Reference checks (3 days) - We'll ask you for two references, and we'll also run a back-channel reference check
- Reverse interview (90 min; in-person) - The founding team will buy you dinner in San Francisco (commute expenses reimbursed), and you will ask us the questions.
- Full-time offer 🎉
First name *
Last name *
Email *
LinkedIn URL
Resume *
Click to upload or drag and drop here
Will you now or in the future require sponsorship for employment visa status in the United States? *
We may provide immigration and sponsorship support to new employees based on their unique circumstances.
Have you gone 0 -> 1 with sales before? *
Please specify whether you've gone 0->1 at a new company or with a new product inside an existing company.
Req ID: R2