Infrastructure Software Engineer
Crossing Hurdles is a global recruitment firm partnering with leading US-based startups. We are hiring for a rapidly growing frontier AI infrastructure company backed by top-tier venture investors and building core systems for the next generation of AI agents. The company is well-capitalized, growing quickly, and building a highly technical team in San Francisco.
About the role
Work on reinforcement learning environments and infrastructure powering next-generation AI agents. Collaborate with a highly technical team solving complex systems and AI research problems. Build realistic simulation environments, data systems, and tasks for advanced AI training. Operate at the frontier of AI development with meaningful real-world impact.
Responsibilities
- Build core systems for reinforcement learning and AI infrastructure
- Develop realistic simulation environments and data systems for AI training
- Solve complex technical challenges in low-level systems and AI research
- Take high ownership in a fast-growing startup environment
Requirements
- 0+ years of experience in full-stack or infrastructure engineering, particularly in low-level systems or as a founding engineer
Benefits
- Competitive equity
- Visa sponsorship (evaluated case-by-case)
Pay
$160K – $600K + competitive equity
Schedule
In-person (6 days/week) in San Francisco, US