This stuff is old (2020), but people keep asking about it, so I put it up.
Facebook: Interviewer Marketplace
My role:
Leadership in helping young team identify an opportunity, design a solution end-to-end, and using design superpowers to help team visualize early ideas and pivot
Team Composition:
Enterprise Engineering: Schedule Team
PM, EM, DS, 1x PD, 5x Eng. No UXR
People Problems
In 2019/2020, Facebook hired 40.000 people. Imagine how many folks you need to interview in order to hire 40k people. This massive increase in scale led to a series of problems:
- Too many interview requests for some interviewers.
- Not enough interview requests for others.
- Late response to interview requests.
- Candidate frustration about last-minute interview changes.
Business Motivation
Low interviewer utilization rate and selection bias
Interviewer burnout
Interview delays
Losing highly sought-after candidates
People are organically using Workplace Groups to solve problem
Hypothesis
By creating a new surface that automates the listing of available interviews, we can greatly increase interviewer utilization rate and decrease reschedules.
Success Metrics
Interviewer utilization: Increase utilization from 34% to 70%
Interview inventory: # of interviews available for signup on a daily/weekly basis
Relevance: Interview Relevance >90%
Refined Design
Use Case:
Find available interviews
Accept available interviews
Refined Design
Use Case:
View accepted interviews
Cancel accepted interview
Nominate alternative
Mobile Design
Outcomes
35%
Increase in interview inventory
The “Marketplace” idea and general UI flow was universally well-received
EN 
DE