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Role description

Member of Technical Staff

FU
Fulcrum
YC S25
AI-native
TypeFull-time
WorkplaceHybrid
SeniorityStaff / Lead
LocationSan Francisco, CA
Posted1/21/2026
Engineering

Compensation: $200,000–$500,000 + equity (depending on experience and scope)

Location: San Francisco

Start: ASAP • Applications: Rolling

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We’re hiring a member of technical staff to work closely with the founding team. You'll shape both our products and research direction.

Key Responsibilities:

  • Backend engineering: Design and build scalable infrastructure and systems for AI agents, including containerization, and performance optimization

  • Machine learning: Contribute to agent science research, and create evaluations for agent performance and behavior

  • Frontend engineering: Develop oversight interfaces and frontend systems for coding agent monitoring and control

  • Shape product strategy and research direction in collaboration with the founding team

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Company info

FU

Fulcrum

The agentic debugger for AI systems

Pre-seedYC S25
Funding
  • Pre-seed · Sep 9, 2025

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