You will help build the foundational infrastructure for the next generation of AI. This role involves developing the core product, specifically the complex environments and evaluation frameworks required for training and testing frontier coding agents. Your work will directly impact how advanced AI models are benchmarked and deployed in real-world scenarios.
This job is no longer actively hiring. Talk to Jack to find live roles.
Software Engineer at high-growth frontier AI startup
Are you ready to build the infrastructure that powers the next generation of AI? We are looking for a Software Engineer in San Francisco to help create the environments and evaluation frameworks used to train frontier coding agents. If you want to work on high-stakes technical challenges that define the future of autonomous software development, this is the role for you.
Want to apply for this role?
C
This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.
Location
San Francisco, United States
Compensation
$300k-$400k + Equity + Bonus
Company
Confidential company
Role overview
About the company
High-growth frontier AI startup
What you will do
- Design and implement robust environments for training and testing autonomous coding agents.
- Build scalable evaluation frameworks to measure the performance and safety of frontier models.
- Collaborate with research and engineering teams to iterate on core product features and infrastructure.
Who this is a fit for
- Extensive experience in software engineering with a focus on infrastructure or backend systems.
- Strong understanding of the AI landscape, particularly regarding LLMs and agentic workflows.
- Proven ability to thrive in a fast-paced, high-stakes environment with a focus on shipping quality code.
Why this role is remarkable
- Work at the absolute bleeding edge of AI agent development and frontier model evaluation.
- Join a well-funded team backed by top-tier VCs with significant capital and resources.
- High-impact, early-stage role offering massive ownership and a highly lucrative compensation package.
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.
Meet Jack
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.