
Building Zipline: From launch disaster to drone-delivery giant | Keller Cliffton (Co-founder, CEO)
In Depth
Evaluating leaders by hires and hard lessons
Keller explains interviewing leaders about their best/worst hires and whether they've cleaned up hiring mistakes.
Keller Cliffton is the co-founder and CEO of Zipline, the world's largest commercial autonomous delivery system, which today serves 5,000 hospitals across multiple countries and saves an estimated 17,000 lives per year. In this episode, Keller breaks down his extreme hiring philosophy that has powered Zipline for over a decade. He also walks through Zipline’s full origin story: from a near-dead home robot startup to a scrappy bet on drone blood delivery in Rwanda, to 135 million autonomous miles flown.
In today's episode, we discuss:
- Why Zipline hires teenagers over PhDs
- Why the best startup employees are "heat-seeking missiles for pain"
- The 5 leadership attributes Zipline has never shared publicly
- The brutal firing advice that shaped Keller’s leadership
- How Rwanda’s health minister changed Zipline’s trajectory
References:
- Airbnb: https://www.airbnb.com
- Alfred Lin: https://www.linkedin.com/in/linalfred/
- Amazon: https://www.amazon.com
- Apple: https://www.apple.com
- Brian Chesky: https://www.linkedin.com/in/brianchesky/
- Cleveland Clinic: https://my.clevelandclinic.org
- Netflix: https://www.netflix.com
- Paul Kagame: https://www.linkedin.com/in/paulkagame/
- Reflect Orbital: https://www.reflectorbital.com
- Sequoia Capital: https://www.sequoiacapital.com
- SpaceX: https://www.spacex.com
- Sphero: https://www.sphero.com
- Tesla: https://www.tesla.com
- University of Washington: https://www.washington.edu
- Walmart: https://www.walmart.com
- Zipline: https://www.zipline.com
Where to find Keller:
- LinkedIn: https://www.linkedin.com/in/kellerrc/
- Twitter/X: https://x.com/Keller
Where to find Brett:
- LinkedIn: https://www.linkedin.com/in/brett-berson-9986094/
- Twitter/X: https://twitter.com/brettberson
Where to find First Round Capital:
- Website: https://firstround.com/
- First Round Review: https://review.firstround.com/
- Twitter/X: https://twitter.com/firstround
- YouTube: https://www.youtube.com/@FirstRoundCapital
- This podcast on all platforms: https://review.firstround.com/podcast
Timestamps:
00:00 Introduction
02:11 Why Zipline doesn't hire for experience
06:04 Are founders born or made?
07:37 Why Zipline hires 17-year-olds over PhDs
17:03 The employees Zipline doesn't want
18:53 The ultimate startup hire is a "heat-seeking missile"
20:36 Why blind references are a non-negotiable
23:07 Can candidates admit when they screwed up?
30:10 Zipline's secret leadership playbook
35:16 Why you should always fire quickly
36:26 The early vision for Zipline
39:48 How Zipline almost died - twice
44:55 From toy robots to drone delivery: Zipline's pivot
51:35 How Rwanda's health minister changed everything
57:10 Why Zipline's launch was a "complete disaster"
1:04:05 Scaling from 1 hospital to 5000
1:05:17 The 10x hardware cost rule every founder should know


