About AfterQuery

AfterQuery is an applied research lab curating data solutions for foundation model development.

We serve every frontier AI lab with the mission of delivering the best data to power the best models. In doing so, we can make expertise that once took a lifetime to build available to anyone who needs it. Our customers are the ones building the foundation models themselves and our work sits directly in the loop of how those systems improve.

This is a rare opportunity to join a company at a defining moment in AI. Since raising our $30M Series A at a $300M valuation, AfterQuery has grown well over a $100M revenue run rate.

We're based in San Francisco and backed by leading investors including Altos Ventures, BoxGroup, and Y Combinator and angels from Google DeepMind, OpenAI, Anthropic, Meta Superintelligence Labs, and Microsoft AI.

Why Apply

Massive Opportunity:
We are one of the fastest-growing YC companies in our batch, and we believe we can become one of the fastest-growing YC companies of all time.

Founding Impact:
You will own and architect core infrastructure systems that power our platform from the ground up.

Equity & Growth:
Competitive salary and meaningful equity. As we scale, you’ll have the opportunity to shape the engineering organization and lead major technical initiatives.

Strong Team:
Our founding team has experience from Citadel Securities, Meta, Google, Silver Lake, and Morgan Stanley — work alongside world-class engineers and researchers.

Overview

You'll own AfterQuery's expert marketplace strategy, acquisition, activation, matching, retention, and quality, leading the team responsible for expert sourcing, onboarding, and staffing. You'll build scalable supply systems across domains, partnering with Engineering on requirements for applications, assessments, matching, and automation, and setting the metrics and cadences that track staffing speed, conversion, and quality. You'll work across Ops, Research, and Engineering to match experts to the right projects, grow conversion and marketplace liquidity, and shape the long-term structure of the expert marketplace function.

Responsibilities

Own AfterQuery’s expert marketplace strategy across acquisition, activation, matching, retention, and quality

Lead the operating team responsible for expert sourcing, onboarding, and project staffing

Build scalable systems and processes for expert supply across multiple domains and project types

Partner closely with Engineering to define product requirements for applications, assessments, expert profiles, matching, and automation

Establish metrics, dashboards, and operating cadences for expert supply, staffing speed, conversion, and quality

Work cross-functionally with Ops, Research, and Engineering to ensure the right experts are matched to the right project requirements

Identify opportunities to improve expert conversion, reactivation, referrals, and long-term marketplace liquidity

Help build the long-term organizational structure for AfterQuery’s expert marketplace function

Required Qualifications

Experience building or operating a marketplace, talent network, labor platform, recruiting system, expert network, or contractor supply function

Strong product and systems thinking, with the ability to design scalable processes across complex workflows

Technical enough to partner deeply with engineers on product requirements, roadmap tradeoffs, and implementation priorities

Strong analytical intuition around funnels, liquidity, activation, matching, conversion, and quality signals

Experience managing operators or cross-functional teams in a high-growth environment

High ownership, strong communication, and ability to operate in a fast-changing environment

Deep care for speed, quality, customer impact, expert experience, and building systems that scale