How to Answer: "Why Do You Want to Work at Factory AI?"

The best answer connects Factory's product to work you have already done. Factory builds Droids. A Droid is an AI agent that takes a software task, changes the code, runs the tests, and opens a pull request.

Large companies use Droids across their engineering teams. Factory's stated mission is to "bring autonomy to software engineering".

A strong answer proves three things. You understand what a coding agent must do to be trusted. You have owned real work from start to finish, and you want a small, in-office team that works quickly.

What the Interviewer Listens For

1. Real product knowledge. Droids read the repository, run commands, check test results, and connect to GitHub, Jira, Slack, and PagerDuty. A Droid can also run on a local machine or in a remote environment. Name one part like this, because it shows you tried the product or read the documentation.

2. Ownership evidence. Factory calls itself a lean, talent-dense team that values ownership, and one of its seven values is "Earn the right". Its job posts ask for people who take "ambiguous research projects from conception to impactful deployment". Bring a story where you decided, built, and shipped something yourself.

3. Customer focus. Another stated value is "Create obsessed customers". Factory sells to large enterprises, and its engineers work close to those customers. Show a moment when a user's problem changed what you built.

4. Fit with the pace and the office. Two more values are "Be relentless" and "Build together". The whole team works from the San Francisco office five days a week. Interviewers listen for whether you want that, with proof from your history.

A Three Part Structure

Part 1: The product reason (2 to 3 sentences). Say what draws you to coding agents. Include evidence, such as an agent you used or built.

Part 2: Your proof (2 to 3 sentences). Describe one thing you built and owned end to end. Include a number.

Part 3: The direction (1 to 2 sentences). Say what you want to build at Factory.

Sample Answer

"I want to work at Factory because coding agents are the hardest and most useful agent problem I know. Last year I built an internal agent that turns bug reports into draft pull requests for my team. I own it end to end: the retrieval over our repository, the sandbox that runs our tests, and the evaluation set. It now produces a mergeable fix for about 30 percent of small bugs without a human. That project taught me that trust comes from verification, not from a better model. Factory works on exactly that problem for enterprise codebases, with a small team in one office. I want to build the verification and evaluation layer that lets a Droid be trusted with a real ticket."

This answer works because every claim has proof. The product interest comes with a build, and the ownership claim comes with a number. The direction names one real problem Factory works on.

Where the Question Appears

Expect the motivation question in the recruiter call first. It usually returns in a later conversation, in a deeper form. The second version asks for more evidence, not more enthusiasm.

Keep the same core answer both times. Add one new proof point later, such as a detail from Factory's engineering posts. Interviewers compare notes, so a story that changes between rounds loses trust.

Factory does not publish a written motivation question on its application form. So prepare the spoken version.

Common Mistakes

• Generic AI excitement. An answer that fits any AI company fails here. Factory builds agents for software engineering. Say something true about that specific problem.
• Treating it as a model company. Factory does not train its own foundation models. It routes tasks across several models and builds the tools, planning, and verification around them. An answer about training bigger models misses the product.
• No product contact. Factory publishes engineering posts, product pages, and a terminal version of Droid. Arriving without trying any of it looks unserious.
• Ignoring the office. Five days in the office is a stated condition. Saying you prefer remote work, or staying silent about it, wastes everyone's time.
• Asking for narrow scope. A lean team expects each engineer to cover product, infrastructure, and customer work. Wanting one small fixed area looks like a mismatch.

How to Prepare

• Learn the full loop first. Read the Factory AI interview process so your motivation story matches the rounds.
• Extend the product knowledge. The same research is useful for the Factory AI system design interview, so study the product once and use it twice.
• Know the logistics. How long it takes to hear back from Factory AI covers waiting, follow-up, and reapplying.
• Practice the delivery. Grokking Modern Behavioral Interview teaches answers built on evidence, not adjectives.