Sales Engineer Internship

Mason • New York City, NY

21d • Remote

About The Position

Mason is on a mission to accelerate the development of the built world by tackling challenges like housing shortages, energy constraints, and decaying infrastructure. We create AI employees that speed up the development of large projects for major real estate firms. Our founding team includes a repeat founder who exited to a Fortune 500 company, a former tech lead at Meta SuperIntelligence, and a development director with experience in over $2 billion in projects. We combine expert services with AI agents to help teams move faster, eliminate errors, and scale with precision. This role is at the intersection of building and selling, requiring genuine curiosity about AI and a willingness to build things yourself.

Requirements

• 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

Nice To Haves

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

Responsibilities

• Build AI agents and workflows to automate research, outreach, and pipeline work
• Prototype tooling that lets a tiny team sell like a big one
• Research target accounts and find the right people to talk to
• Build and maintain prospect lists, powered by the agents you create
• Draft and send personalized outreach, increasingly automated by what you build
• Book qualified meetings for the founding team and sit in to learn the craft
• Sit in on demos and translate what customers need into things we can build
• Track what messaging lands and feed insights back to the team

What This Job Offers

• Job Type: Full-time
• Career Level: Intern
• Education Level: No Education Listed