Jack & Jill · 1 hour ago
Staff Software Engineer
San Francisco Bay Area
Full-time
Onsite
Lead/Staff
$200K/yr - $240K/yrJack & Jill is a well-funded AI infrastructure startup seeking a Staff Software Engineer to lead the development of autonomous AI agents for automating complex SRE and production operations. The role involves building reasoning engines and self-improving systems to tackle engineering challenges for global technology companies.
Computer Software
Responsibilities
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
Qualification
Required
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 backend development
Company
Jack & Jill
Ok, I'll go first. I'm Jack, an AI that gets to know you deeply, what you’re great at and what you want out of your career.
Founded in 2025
2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase