Founding Product Engineer

Weave (YC W25) is building the definitive platform for understanding and improving how engineering teams work. We believe the way engineering output is measured today is fundamentally broken and that modern AI can give teams a far more accurate and actionable view of productivity, impact and collaboration.
Trusted by 150+ customers such as Rho, 11x and Browserbase, we’ve delivered consistent double-digit month-over-month revenue growth since May and are looking to accelerate our growth.
We’ve raised a $4.2M seed round and are backed by Moonfire, Burst capital and Y Combinator (W25). We’re now hiring a

Founding Product Engineer

to help define the product and the technical foundation of Weave.
This is a rare opportunity to join at the ground floor and shape how millions of engineers and leaders understand engineering work.
What We’re Building

Weave is rethinking engineering output from first principles.
We use AI to:
Understand how engineers actually work (not just what they ship)
Surface meaningful insights about productivity, quality, collaboration and impact
Help teams improve outcomes without vanity metrics or surveillance
Our goal is not to optimize for “more output,” but for better engineering.
The Team You’ll Work With

You’ll work directly with:
Andrew (CTO)

– previously a founding engineer at Causal, MIT alum. Andrew has been in your shoes and is deeply committed to providing the mentorship, ownership and growth he had as an early engineer.
Adam (CEO)

– leads sales and customer discovery. Adam is a former sales executive at multiple high-growth startups and deeply embedded with customers and scaled multiple sales teams from $0-30M in ARR.
This is a small, intense, highly collaborative team. You will have real ownership from day one.
Must haves

You are a good fit for Weave if you are a formidable engineer. This means you stop at nothing to accomplish your goal. We dont care much about your current skills or even what youve done before; we care that you will be able to do anything you set your mind to.
You must also be pragmatic. Weave is a startup so something is always on fire. You need to know when to let little fires burn and when to break out the extinguisher.
You must be a very good engineer whos committed to becoming a great engineer. The slope is more important than the Y-intercept.
You must be empathetic. Were building products for other people, so you need to be able to understand how other people think and why.
You must care about helping other software engineering teams be great. If thats not an exciting mission for you, it will be hard to stay motivated through the inevitable highs and lows.
You must be an excellent communicator. You’ll be working on a product that’s communicating with millions of engineers and leaders, so you need to be clear.
Finally you must be gritty. You should be accustomed to picking the hard option and pushing through it.
Nice to haves

(Please feel free to apply even if some or all of these dont apply to you!)
Our tech stack is React + TypeScript on the frontend, Go on the backend, and Python for ML. Experience with any of those three languages is a bonus.
If youve already done lots of thinking about engineering productivity and how to improve it, thats great and we want to hear about it!
We hope your design sensibilities are passable.
The role

As Weave’s founding product engineer, your job is to build things customers want. This involves any/all of:
Talking to customers to understand their pain points and requests
Designing and planning potential solutions
Writing the backend for a new feature
Writing the frontend for a new feature
Provisioning the infrastructure to support a new feature
Releasing the feature and collecting customer feedback on it
Finding a hacky fix to solve a bug quickly
Finding a great fix to solve a bug and eliminate future bugs too

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