Staff Software Engineer

Company Description

We let anyone build AI friends with social intelligence. The work you do will touch hundreds of thousands of people.

We've raised $5m by Lightspeed, Nat Friedman/AI Grant, & the founders of Riot Games, Rubrik, and Behance.

If you are passionate about using AI to transform creativity, this role could be a great fit for you.

Role Description

This is a on-site full-time role for a Senior Software Engineer at Circle Labs located in San Francisco, CA.

Strong bias for candidates in San Francisco who want to work out of our office in the Marina. If not currently in SF, but willing to relocate without assistance - you’re welcome to apply too.

Key Responsibilities:

Optimize platform performance and scalability to handle growing user demands

Develop, maintain, and improve front-end and back-end components

Implement new features

Talking to users for feedback and iterative product development

Qualifications:

5+ years of experience as a Full Stack Engineer

Strong proficiency in Python and MongoDB

Experience with Next.js

Excellent problem-solving and communication skills

Extreme attention to detail, and obsession for great UX (we’re building a consumer product)

Example projects

Working on our inference layer to blend models and route queries based on human preferences

Exposing our internal api to allow anyone to have new experiences with shapes

Going multi-platform i.e. being able to interact with these agents across discord, twitter, whatsapp, imessage, roblox, etc.

Making our homepage (

Enabling our catalogue of over 100,000 user-made agents to generate their own websites, their own corners of the internet

Building LLM evals and human preference datasets using our real production traffic with over 3m daily queries