Software Engineers (Product, Applied AI, ML Infra, Data Platform) at Rebar

Location: ONSITE 5 days/week, New York City (Union Square area) Employment Type: Full-time Compensation: $150k–$260k + equity Apply: Rebar Careers Page

About Rebar

We build AI estimating software for commercial HVAC, plumbing, and electrical contractors. Before bidding on a job, a contractor or estimator has to count every duct, fitting, diffuser, and piece of equipment across a set of construction drawings that can run to thousands of pages. We speed this up by ingesting the drawings, detecting the equipment schedules, finding symbols, and producing a priced takeoff that the estimator reviews and corrects in a collaborative canvas editor. We have strong PMF and raised a $14M Series A earlier this year.

Engineering Challenges

It may not sound sexy, but it actually is! There are a ton of hard and interesting engineering challenges, including:

Very dense document drawings with a real-time collaborative canvas editor (think 50k DOM elements and up).
Segmentation models whose output has to become geometry a user can interact with.
GPU inference across hundreds of concurrent jobs.
Dynamic analytics and chart generation from agentic workflows custom-built for estimators.

Open Roles

Tech Stack

Languages/Frameworks: TypeScript, React, Next.js, Python, PyTorch
Infrastructure/Tools: Postgres, Temporal, AWS, Kubernetes, Modal

How to Apply

We are also hiring for PMs, implementation, sales, and marketing roles.

Apply through the Ashby portal and mention HackerNews or HN in the application form.
Alternatively, you can email the Head of Engineering at john@withrebar.ai.
We will reply to everyone, but it might take us some time. Thank you for your patience.
Bonus: There is a fun puzzle on our marketing site that will fast-track your application if you choose to solve it!

Software Engineer at Rebar