Software Engineer, Platform at Lassie (San Francisco, CA)
Lassie· San Francisco, CA·
Role details
Job description
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
Platform engineers build the systems that let Lassie’s agents do real work reliably: integrations, orchestration, data infrastructure, observability, and the foundations behind every new workflow we launch.
WHAT YOU'LL DO
- Build the integrations, data models, orchestration, and reliability systems that let Lassie’s agents complete real workflows at scale
- Create internal tools, observability, and infrastructure that help the team launch new workflows faster and with more confidence
- Work closely with product and operations to turn messy real-world processes into dependable 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 blog.superhuman.com 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.
Why work at Lassie
- Early‑stage impact: Join a lean, ambitious team (<25 people) backed by top‑tier investors (a16z) and already generating meaningful revenue. Every hire is a founding‑level contributor.
- Hard, unsolved problems: Lassie is pushing the boundary on autonomous systems for SMBs – combining AI, integrations, and operations in a single product.
- Culture: The company values craft, rigor of thought, direct communication, and shared optimism about the future. lassie.ai/company
- Work policy: Not explicitly stated, but the team is concentrated in San Francisco (HQ) with additional presence in India and the Netherlands; given the early stage, a strong in‑person culture is likely.
- Open roles (as of mid‑2026): Founding Growth Lead (GTM), Founding Recruiter. linkedin.com