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Sepal AI
Senior software engineer

Senior software engineer

On site

San francisco, United states

Senior

Full Time

28-01-2026

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Skills

Python TypeScript PostgreSQL Docker Research react AWS FastAPI

Job Specifications

Overview
Sepal is a data research company on a mission to advance human knowledge and capabilities through safe AI. We partner with the world's leading AI labs and enterprises to help their models get better at the tasks people actually want them to do.
In this role, you will work with top researchers and a team of senior engineers on open-ended projects. You will design and implement products like agentic hiring workflows, agentic annotation platforms, RL environments, and eval infrastructures. Responsibilities
In this role, you will work with top researchers and a team of senior engineers on open-ended projects. You will design and implement products like agentic hiring workflows, agentic annotation platforms, RL environments, and eval infrastructures. Who We're Looking For
You've built something difficult and meaningful.
3+ years of professional software engineering experience.
Ability to ship high-quality code quickly and iterate fast.
Strong instincts for product design and user experience.
Insatiable curiosity and the ability to quickly become an expert in any domain. Our Tech Stack
TypeScript, tRPC, React
Python & FastAPI
PostgreSQL
Docker & AWS
You don't need to know them all, but you should be comfortable jumping into at least one. Working at SepalAI
You will get to work directly with the world's frontier AI labs.
Competitive compensation with substantial equity.
Rapid career growth opportunities and the chance to influence the future of AI development.
Exceptional health, dental, and vision benefits.
Flexible PTO and an low-ego culture designed around empowering each other.