Open Source AI Tools Engineer: Build & Ship LLMs

Stealth Startup; San Francisco (CA); On-site; USD 80,000 - 120,000; Full time

Benefits offered by this job

Collaborative culture

Learning opportunities

Work on cutting-edge technology

Job summary

Stealth Startup is looking for a passionate Open Source Developer based in San Francisco, California, who is eager to contribute to developer ecosystems and work with cutting-edge technologies like LLMs and AI tooling. This role is suited for early‑career engineers with a builder mindset.

You will collaborate with the engineering team, maintain open-source projects, and develop tools that help enhance developer experiences. Ideal candidates will show strong proficiency in Python and a willingness to engage with the open-source community.

Qualifications

• 0–3 years of experience in software development.
• Strong proficiency in Python (preferred).
• Familiarity with Git and open-source workflows (PRs, forks, issues).
• Basic understanding of APIs, backend development, and system design.
• Exposure to AI/ML concepts or interest in working with LLMs.

Responsibilities

• Contribute to and maintain open-source projects.
• Build and improve developer tools, APIs, and libraries.
• Collaborate with the engineering team to design scalable backend systems.
• Engage with the open-source community (issues, PRs, discussions).

Skills

Python

Git and open-source workflows

Basic understanding of APIs

AI/ML concepts

Problem-solving skills

Tools

Docker

Kubernetes

FastAPI

Django

Node.js

Job description

Stealth Startup is looking for a passionate Open Source Developer based in San Francisco, California, who is eager to contribute to developer ecosystems and work with cutting-edge technologies like LLMs and AI tooling. This role is suited for early‑career engineers with a builder mindset.

You will collaborate with the engineering team, maintain open-source projects, and develop tools that help enhance developer experiences. Ideal candidates will show strong proficiency in Python and a willingness to engage with the open-source community.