Dig to the root.
Ask why three times. Fix the cause, not the symptom.

Our mission is not about productivity or optimization. It is to simplify connecting, so people can be together. In doing this, our vision is to create one megabrain that orchestrates time and relationships to make the world smaller.
The Greeks had two words for time. We’re trying to make AI understand the second.
The minutes that pass.
The moments that matter.
Same four hours, but only a few moments carry most of the meaning.
Six open roles, all in person in San Francisco. Don’t see yours? Exceptional people should still write to us.
ALL ROLES ON ASHBY →Real preferences don’t fit in a settings page. Now every person gets an agent, and we build the layer that negotiates between them.
— John Han, co-founder · previously Timeful, Google Calendar and Clockwise
Time is shared.
Every move ripples across everyone else’s calendar.
Preferences are messy.
“Not before 10, unless it’s my manager.” Add people and the options explode.
Mistakes are irreversible — and public.
Our agent acts in front of the people our users care about most.
Every calendar that connects makes the network smarter. When two Blockit users meet, scheduling takes minutes, not days. That’s the time graph.
Does what you tell it to.
“Blockit, send the invite.”
Acts before you ask.
“Want me to resolve this conflict on your calendar?”
Suggests what you didn’t think of.
“You’re raising your seed. Want me to line up investor meetings?”
Four principles from the Blockitution, the doc every Blockiton reads in week one.
Ask why three times. Fix the cause, not the symptom.
Direct and kind. Disagree in the room, not after it.
Every hire is a hell yes or a no.
Bring energy and rigor. If it’s merely fine, take another pass.
Kais and John teamed up in 2024: an investor who had watched the problem from the boardroom, and an engineer who had spent a decade inside it.

Had the idea for Blockit as a sophomore at Harvard and never let it go. Before founding Blockit he was an investor at Sequoia, where he saw up close how much a great executive assistant changes a leader’s week.
LINKEDIN ↗
Stanford CS. More than a decade building scheduling at Timeful (acquired by Google), Google Calendar and Clockwise. Blockit is his fourth swing at the problem, and the first with the technology to solve it.
LINKEDIN ↗“We don’t waste energy on politics or credit allocation. Our conversations center on what we should build and why it matters — and we have passionate users who give us detailed feedback that fuels every cycle.”
Chung KimFounding Engineer“I was one of Blockit’s earliest users, and every time I scheduled with someone, they immediately wanted to know what it was and how to get it. That kind of pull is rare.”
Delaney UgelstadOps & ProductRead more: TechCrunch · Sequoia, “The most precious resource” · Introducing Blockit
We’re in San Francisco’s Mission District, together in our dog-friendly office four days a week, with Wednesdays for deep work from home. Lunch is together, every day.








Every hire is a hell yes or a no — so we’ll be clear with you about where you stand, at every step.
A no-pressure conversation, whether you’re looking or just curious.
Hands-on and role-specific. For engineers: live coding, sometimes system design.
A day in the Mission with the team. See how we work; show us how you do.
We move fast and tell you where you stand at every step.
We’d rather meet you than read about you. Pick a role and we’ll take it from there.