Expression of Interest at Fulcrum (San Francisco, CA)

Fulcrum· San Francisco, CA·6d ago

Role details

Work type

Hybrid

Employment

Full-Time

Job description

We're growing, and job descriptions can't always keep up with what we need.

If you care about the problems we're working and have skills you think we'd benefit from, we want to hear from you, even if we don't have a clear role.

Why work at Fulcrum

High-impact mission: Work on foundational infrastructure for how humans will control and trust AI-generated software.
Elite technical team: Colleagues with top-tier ML publications, open-source influence, and MIT alignment background.
Culture of research and engineering: The team publishes research, builds open-source software, and operates at the intersection of ML research and systems engineering.
Early stage: Opportunity to shape the company’s product, culture, and direction.
Remote/hybrid: Not specified on careers page; likely flexible for early-stage startup.
Hiring roles: Currently seeking a "Member of Technical Staff" and a "Generalist"—general skills valued; no explicit degree or experience requirements listed, just impact orientation.

About Fulcrum

Company Overview

One-liner: Fulcrum is an AI lab building infrastructure and interfaces for human-AI collaboration in software development, with a focus on "elicitation" to extract optimal performance from AI models.
Entity Type: Private (early-stage startup)
Headquarters: Not publicly available on their website or careers page; likely US-based (founders with MIT affiliation).
Founded: 2025 (GitHub org created February 27, 2025)
Founders: Founders are from MIT’s AI alignment group, with top-tier ML research publications (NeurIPS, COLM), open-source contributions, and international olympiad medals. Specific names are not listed on the website.

Core Business

Primary industry/industries: AI/ML Infrastructure, Developer Tools, Agentic Software
Target customers: B2B; AI researchers, engineering teams, and enterprises building multi-agent software systems
Mission or purpose statement: "AI agents are going to write most of the world's software. We want to make sure humans can understand, control, and trust what they build."

Products & Services

[Druids]: A batteries-included, open-source Python library to coordinate and deploy coding agents across machines. It provides a state machine framework, pre-warmed cloud VMs, and a UI/CLI/MCP for managing agent teams. Solves the bottleneck of human oversight by scaling intent across many agents with verification and control flow.

Market Standing

Valuation/Market Cap: Not disclosed
Key Metric: Total Funding—not publicly disclosed (likely angel or pre-seed stage). Open-source community traction: Druids launch (March 2026) with beta users applying it to open math problems, ML "autoresearch," and software optimization.
Notable Investors/Partners: Not publicly disclosed
Growth Signals: Rapidly building a developer community (Druids is open-source); 21 public repositories on GitHub; early beta users in research and engineering; actively hiring for technical staff and generalist roles.

Competitive Advantages

Deep technical moat in elicitation: Focus on getting the best outputs from frontier models by structuring tools and processes, combined with infrastructure to measure output quality.
Founding team caliber: Top-tier ML research (NeurIPS, COLM), open-source software contributions, international olympiad medals, and leadership at MIT’s AI alignment group.
Unique product philosophy: Treats AI agents as a distributed systems problem (state machines, VMs, parallelism) rather than a prompt engineering problem—offering reproducibility and control at scale.

Strategic Focus

Open-sourcing infrastructure: Druids is the core product, released open-source to build a community and ecosystem.
Human-AI collaboration: The company's core thesis is that smarter models alone aren't enough—human oversight scaling requires new infrastructure.
Research-driven: Continues to measure model capabilities, find failure modes, and develop elicitation techniques for "the hardest and fuzziest tasks."

Sources

Job description

Why work at Fulcrum

Application questions