Sales Development Internship Hybrid NY; Toronto, Canada

Mason - Accelerating development of the built world

Mason is on a mission to accelerate the development of the built world. We are tackling some of the most pressing challenges of our time - housing shortages, energy constraints, and decaying infrastructure - all of which are exacerbated by the slow pace of physical development.

This is one of the largest, least-modernized markets in the world. Trillions in spending, almost no real software.

We create AI employees that speed up the development of large projects for some of the largest REITs, institutional developers, and asset managers in North America.

Our founding team comprises of a repeat founder that exited to a Fortune 500
, a previous tech lead at Meta Super Intelligence
, and a development director that built $2B+ of projects
.

We combine expert services with AI agents so teams can move faster, eliminate errors, and scale with precision.

You’ll be the person who helps us reach the people and firms who need what we’re building. We need someone hungry, curious, and relentless - someone who wants to learn how enterprise sales actually works at a fast-moving startup and is willing to do the unglamorous work that makes a pipeline real. You don’t need sales experience. You need energy, coachability, and the drive to own outcomes.

• Research target accounts and find the right people to talk to

• Build and maintain prospect lists

• Draft and send personalized outreach

• Book qualified meetings for the founding team and sit in to learn the craft

• Track what messaging lands and feed insights back to the team

• Support the founders on demos, follow-ups, and deal logistics

• Help build the playbooks and tooling that let a tiny team sell like a big one

• High ownership, high agency — you own the outcome, not just the task

• Relentless and resourceful; you find a way to the right person

• Strong written and verbal communication

• Genuine curiosity about physical development and how AI is changing the industry

• Coachable and fast-learning; you act on feedback immediately

• Comfortable with rejection and high-volume outreach

• Sales or customer-facing experience is a plus, not a requirement

• CEO is a second-time founder who sold his last company to Coinbase

• CTO is a former Staff Engineer at Meta Superintelligence and founded Meta AI

• COO has led over $2B in real estate development

• Backed by top investors, operators, and even major development firms

• Working directly with teams managing billions in AUM

• Small, intense, low-ego team that genuinely enjoys working together

• Regular board game nights, lots of laughs, no corporate nonsense

If you want to join a team of winners and re-define the built world - let’s talk :)