Software Engineer, Applied AI

lassie· Engineering
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📍 San Francisco, CAFullTime

About this role

Our mission is to help small businesses run themselves. We’re starting with doctors’ offices, building autonomous systems that handle busywork and complete the workflows that keep the office moving every day. Our team is small, flat, and ambitious. We value craft, intellectual rigor, and direct communication.

About the role

We're hiring an engineer to build the AI agents that run doctor's offices.

These are production systems handling real money and real patient data for thousands of practices. You'll work across the full stack: agent architectures, data pipelines, evals, and the infrastructure that makes it all reliable.

You will be a great fit if you…

  • Are excited to work with frontier models

  • Engineer for reliability and correctness, not just functionality

  • Diagnose and resolve live production incidents with minimal disruption

  • Automate away repetitive work and build tooling that makes engineering faster and safer

  • Design schemas and pipelines for large-scale datasets to power applied AI

  • Are comfortable working across databases, caches, proxies, and job orchestration systems

Some things we've built

  • Data pipelines processing $1B+ in insurance claims

  • Systems that eliminate thousands of hours of paperwork every month

  • A sync engine backed by encrypted SQLite in the browser, enabling 100ms experiences for healthcare payments and patient ledgers

Technology we use

We invest heavily in productivity. Engineers should have the best tools for the job and the freedom to choose them.

  • Python (Django, Pydantic AI), Postgres, Redis

  • TypeScript, React, Tailwind

  • Google Cloud Platform, Vercel

  • Linear, Slack, Notion

Joining us

To start, you'll have a handful of conversations with our team and founders. If there is mutual excitement, we'll invite you to the office where you'll work on a small project and meet the team.

Frequently Asked Questions

Is the salary disclosed for the Software Engineer, Applied AI position at lassie?
The salary for this Software Engineer, Applied AI role at lassie is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Software Engineer, Applied AI position at lassie located?
This Software Engineer, Applied AI role at lassie is based in San Francisco, CA. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Software Engineer, Applied AI role at lassie full-time or part-time?
This is listed as a FullTime position. It is posted as a Software Engineer, Applied AI role in the Engineering department at lassie.
Which team or department does the Software Engineer, Applied AI at lassie belong to?
This Software Engineer, Applied AI position is part of the Engineering department at lassie. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Software Engineer, Applied AI position at lassie?
Click the "Apply Now" button on this page. You will be redirected to lassie's official application portal hosted on ashby where you can submit your application directly.
When was the Software Engineer, Applied AI job at lassie posted?
This Software Engineer, Applied AI position at lassie was posted on Dec 12, 2025. Apply as soon as possible — early applications are often reviewed first.
Software Engineer, Applied AI
lassie
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