Founding Engineer - Build Scalable AI Agent Pipelines
startxMillbrae (CA)
Founding Engineer - Build Scalable AI Agent Pipelines
Posted today
startxMillbrae (CA)
SENIORITY
Lead
About the role
Upriver is seeking a founding engineer to help construct a data-driven platform that translates cross-web signals into a structured context graph for agents and AI apps. You will work closely with the founding team to design scalable pipelines and robust APIs while exploring frontier data processing techniques in production systems.
The role is full-time and in-person in San Francisco, with equity and visa eligibility.
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.