Founding Design Engineer

About the role

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 Robinhood, Rho, PostHog and Browserbase, we’ve delivered consistent double-digit month-over-month revenue growth since May and are looking to accelerate our growth.

As Weave's Founding Design Engineer, your job is to make complex engineering data feel simple, beautiful and actionable. You'll own the intersection of design and engineering, turning insights about how software teams work into interfaces that leaders and engineers actually love using. You'll be building our design systems and frontend standards as you go to make every incremental feature easier to build and more delightful to use. Your goal will be to delight customers with experiences that make their job 10x easier.

We've raised a $13.5 million Series A and are backed by Standard Capital, YCombinator, Moonfire, Burst Capital, IrregEx and the Agent Fund.

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 design engineer. This means you stop at nothing to accomplish your goal. We don't care much about your current skills or even what you've done before; we care that you will be able to do anything you set your mind to.

You must 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 have strong design taste and the engineering skills to bring your ideas to life. You should be equally comfortable in Figma and in code. You're obsessed with craft, the micro-interaction that feels off, the visualization that could tell a clearer story, the flow that adds one too many clicks.