You will develop full-stack testing platforms and evaluation infrastructure used to align and improve next-generation AI models. By engineering complex software interactions and data systems that mimic real-world business environments, you enable AI researchers to train models on high-fidelity data. This role bridges product engineering and AI safety within a high-velocity team.
Product Engineer at well-funded AI safety startup
Join a well-funded AI safety startup as a Product Engineer and help build the testing infrastructure necessary for aligning the next generation of intelligent models. In this San Francisco-based role, you will create complex full-stack environments that simulate real-world business applications, providing the high-fidelity interaction data research labs need to evaluate and improve AI performance. Working alongside industry veterans from major technology companies, you will own projects end-to-end, from backend architecture to user interfaces.
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Location
San Francisco, United States
Compensation
$125k-$200k + Equity
Company
Confidential company
Role overview
About the company
Well-funded AI safety startup
What you will do
- Develop end-to-end evaluation platforms, including frontend tools, backend services, and APIs that simulate complex real-world software interactions.
- Partner with research teams to design sophisticated data models and software workflows for testing model performance in business contexts.
- Implement modern development practices and AI-assisted coding tools to rapidly build and deploy infrastructure that ensures AI reliability and alignment.
Who this is a fit for
- Has 3+ years of experience building complex, full-stack products from initial ambiguity to production, ideally within a high-growth startup environment.
- Possesses deep technical proficiency in React, TypeScript, and Python, with a strong intuition for how enterprise software behaves in production.
- Demonstrates a proactive, owner-mindset with the ability to navigate complex requirements and build robust tools for evaluating AI performance.
Why this role is remarkable
- Contribute to the critical mission of AI safety and human-aligned AGI by building evaluation infrastructure used by leading foundation model labs.
- Join a well-funded Series B startup backed by top-tier VCs, offering meaningful equity and the chance to work at the frontier of AI research.
- Work directly with a founding team of industry veterans from major technology companies in a high-velocity, in-office culture in San Francisco.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.