About the role
We are looking for a Founding MEP Software Engineer with 2-10 years of experience to join ArchiLabs as the fourth full-time team member and own the MEP vertical for our AI-native CAD platform. You'll bring deep MEP domain expertise (especially HVAC) combined with strong software engineering skills to help us build the future of how buildings are designed. This is a high-leverage role where you'll define product direction for MEP workflows, translate domain knowledge into acceptance criteria for AI agents, and QA/QC the outputs. We want someone who thinks like a co-founder — bringing contrarian opinions, taking initiative, and helping us discover blind spots in our MEP product strategy.
What will you be doing?
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Defining and building MEP content libraries (HVAC systems, electrical, plumbing, pipes) on top of our code-first CAD engine, translating domain expertise into acceptance criteria for AI-generated work
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Owning MEP product thinking — identifying what good MEP tooling should look like, discovering blind spots, and shaping the roadmap for our MEP vertical
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QA/QC-ing AI-generated MEP designs and outputs, ensuring they meet engineering standards and real-world requirements
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Working directly with MEP design partner firms (a few hours per week) to understand their workflows, bootstrap initial content libraries, and help onboard early customers
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Writing software (Python, TypeScript/React) to build platform features and content packs, leveraging AI coding tools to ship quickly
About ArchiLabs
ArchiLabs is building the AI-native CAD engine for architects and engineers, starting with MEP (mechanical, electrical, and plumbing) workflows. The company is helping neoclouds, hyperscalers, IT tenants, and data center builders deliver data center projects faster and with less risk.
Founded in 2024 by Brian Bakerman and William Meng — who met at Carnegie Mellon — ArchiLabs is rethinking how building design works from the ground up. Rather than bolting AI onto legacy tools like Revit and AutoCAD (which were designed in the 90s for human ergonomics), ArchiLabs is building a code-first, web-first CAD platform where every component is defined via code, enabling AI agents to reason over building systems at scale.
Why ArchiLabs exists: Traditional CAD tools were built for humans clicking through menus — not for AI agents that can write code faster than anyone but can't draw shapes intuitively. ArchiLabs redesigns the architectural representation layer from first principles, making it native to how LLMs think and operate.
Culture: ArchiLabs is a flat, best-idea-wins organization where team members think and act like co-founders. The team values initiative, contrarian thinking, and genuine problem-solving over hierarchy or task delegation. The founders describe the vibe as "three friends taking on a big interesting technical problem" and want every new hire to bring that same energy and ownership.
Backed by Y Combinator, ArchiLabs is at the ground floor of transforming how the $13T AEC (architecture, engineering, and construction) industry designs and delivers projects.
Required skills
Other roles at ArchiLabs
Job details
Salary
$150,000 - $200,000
Equity
0.25% - 1%
Location
San Francisco, United States
Experience
2+ years
Funding
Total raised
$24M
Last stage
Seed
Investors
What happens next.
No applications, no recruiter spam. Just the intro.
Confirm the fit
A few questions to make sure this role is the right shape for you. Two minutes.
I pitch you to the company
I write the intro, send it to the founder, and handle the back-and-forth.
A meeting lands on your calendar
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.