Founding Engineer (Copy)
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Before you apply
LocationStudio, San Francisco, United States
Work modeon-site
Typefull-time
SeniorityLead
Company size1–10 people
PostedJan 6, 2026 · 10mo ago
Verified live1d ago
May no longer be actively hiring
Posted by the company on Jan 6, 2026
At a glanceSummarised by Seekless from the posting.
Has built and shipped meaningful software at high-growth startups or tech-forward companies
Can go deep on backend architecture and also cares that the UI feels crisp
Interested in building with LLMs to solve real world problems
Understands context is king, and how to provide the right context at the right time
Is comfortable with ambiguity and thrives in early-stage environments
Doesn't need permission to start something, but knows when to ask for input
Wants to own real outcomes—not just code
Has experience with frameworks like React, Next.js, FastAPI, SQLModel, Postgres, etc.
Skills
React
Next.js
FastAPI
SQLModel
Postgres
LLMs
Tariffs don’t have to be money lost forever. Pax claws it back.
Pax helps retailers, manufacturers, and wholesalers get refunds when they pay tariffs. We’re building the control center for U.S. duty drawback—a $10B/year opportunity hiding in plain sight. We use AI and automation to recover tariffs paid by importers when goods are later exported, returned, or destroyed. Most companies don’t even realize they’re eligible. We make sure no dollar is left behind.
Tariffs have been top of mind for everyone. Companies have gone from paying 25% to 145% tariffs. There’s never been a better time to make a real world impact on real businesses.
We’re well-capitalized and looking for a founding engineer to take core ownership of our product.
Responsibilities
What you’ll do:
•
Own major features end-to-end: API design, backend logic, frontend UI, and everything in between
•
Build tools that make complex regulations feel like magic
•
Work closely with customers to understand what matters, then ship fast
•
Help shape our engineering culture, system architecture, and technical roadmap
•
Solve real problems for real businesses, not imaginary ones
Requirements
The ideal candidate:
•
Has built and shipped meaningful software at high-growth startups or tech-forward companies
•
Can go deep on backend architecture and also cares that the UI feels crisp
•
Interested in building with LLMs to solve real world problems
•
Understands context is king, and how to provide the right context at the right time.
•
Is comfortable with ambiguity and thrives in early-stage environments
•
Doesn’t need permission to start something, but knows when to ask for input
•
Wants to own real outcomes—not just code
•
Has experience with frameworks like React, Next.js, FastAPI, SQLModel, Postgres, etc.
We’re a small team by design. Your work will shape the future of the company—and the $50B+ industry we’re transforming. This will be the most fulfilling work of your career.
We work from San Francisco, in-person. Our office is focused, fast, and full of energy.
If you’ve built something you’re proud of, we want to see it.