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San Francisco, CA - $200K Full Time Posted by: Jack & Jill/External ATS Posted: Friday, 23 January 2026
 
 
Staff Software Engineer, AI Salary

$200K - $240K + Equity

Company Description

Well-funded AI infrastructure startup

Job Description

You will lead the development of autonomous AI agents designed to automate complex SRE and production operations. This role involves building robust reasoning engines, evaluation frameworks, and self-improving systems. You will bridge the gap between high-scale infrastructure and machine learning to solve non-deterministic engineering challenges at scale for global technology companies.

Location

San Francisco, USA

Why this role is remarkable
  • Work at the cutting edge of autonomous agents, moving beyond simple chatbots to systems that remediate production issues independently
  • Join an elite team of AI and infrastructure veterans backed by top-tier venture capital firms and prominent Silicon Valley angels
  • Influence the foundational architecture of a product already deployed at high-scale technology companies in fintech and autonomous vehicle sectors
What you will do
  • Design and implement sophisticated agent evaluation frameworks to measure and improve reasoning performance and system reliability
  • Build autonomous agents capable of executing complex, multi-step tasks across distributed infrastructure environments including Kubernetes and Kafka
  • Debug agent behavior by tracing reasoning paths and tool-calling logic to resolve non-deterministic failures in production
The ideal candidate
  • Deep experience building and operating high-scale production systems with a strong foundation in ML fundamentals and evaluation metrics
  • Proven track record of building at least one autonomous agent end-to-end and a preference for using AI-augmented workflows
  • Expert-level proficiency in Python and experience with systems languages like Rust, Go, or JVM-based languages for scalable Back End development
Next steps
  1. Visit our website
  2. Click 'Talk to Jack'
  3. Talk to Jack so he can understand your experience and ambitions
  4. Jack will make sure Jill (the AI agent working for the company) considers you for this role
  5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction
  6. If not, Jack will find you excellent alternatives. All for free
San Francisco, CA, United States of America
IT
$200K
Click apply
JS26489_25197_6CBDE06830761E197D728D48A9F7C927
1/23/2026 5:33:09 PM
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