Founding AI Engineer

Weaveos; San Francisco, Northern (CA, KY); Hybrid; USD 180,000 - 280,000; Full time

Benefits offered by this job

Competitive pay

Early equity

Health insurance

Vision insurance

Dental insurance

Free meals

Team offsite

Learning stipend

SF office

Job summary

Weave is rebuilding how engineering teams measure and improve their work. As Founding AI Engineer, you will craft AI systems to understand engineer activity and surface actionable insights that boost productivity, quality, and collaboration.

You’ll own processes and standards from day one in a small, ambitious team. This rare ground-floor opportunity offers mentorship from leadership, competitive pay with early equity, and a five‑day‑per‑week on‑site role in San Francisco, with a culture built

Qualifications

• Formidable engineer with ownership mindset and a drive to solve hard problems.
• Pragmatic startup mindset; able to navigate high ambiguity and fires on fire.
• Excellent communicator capable of explaining complex AI concepts clearly.
• Empathetic with a customer‑first approach and collaboration across teams.

Responsibilities

• Build AI to understand and improve how software engineers work.
• Define processes and standards to accelerate feature delivery.
• Delight customers with actionable intelligence that increases productivity.
• Collaborate with CTO and CEO to align product and technical roadmaps.
• Own key milestones from day one in a small, high‑impact team.

Skills

React

TypeScript

Go

Python

ML

Ownership

Communication

Empathy

Grit

Education

Bachelor's degree in a technical field

Job description

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 200+ 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 AI Engineer, your job is to build AI to understand and improve the work that software engineers do. You’ll be building our processes and standards as you go to make building every incremental feature easier. Your goal will be to delight customers with intelligence that makes their job 10x easier.

We’ve raised a $4.2M seed round and are backed by Moonfire, Burst capital and Y Combinator (W25).

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 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 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 who's committed to becoming a great engineer. The slope is more important than the Y-intercept.

You must be empathetic. We're 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 that's 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.

This role is 5 days in office in SF

Nice to haves

(Please feel free to apply even if some or all of these don't 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 you've already done lots of thinking about engineering productivity and how to improve it, that's great and we want to hear about it!

We hope your design sensibilities are passable.

Why Join

• Competitive pay + early equity

• Health/vision/dental insurance covered

• Free lunch/dinners/snacks

• Yearly team offsite with regular team events

• Yearly $500 learning/development stipend

• Get to work in SF with one of the fastest moving teams (95%+ percentile code output)

About the interview

1. 15-minute intro call

2. Take home assessment

3. One-hour technical interview with our CTO, Andrew

4. One-hour technical interview with our CTO, Andrew

5. 3-5 day paid work trial