Sign in

Jez Humble

@jezhumble.net
3.8K followers 121 following 54 posts

Works on my machine! Author of some books on software, MTS @ Anthropic, portfolio @ continuousdelivery.com. Previously lecturer @ UC Berkeley, 18F, ThoughtWorks, Google. All tweets fictional. He / him. Ⓥ

PostsRepliesMedia
Jez Humble @jezhumble.net · 05/08/2026
My wife’s bookstore opens this Saturday 8th in El Cerrito, CA! It is going to be epic. All welcome! Please share!
0173
Jez Humble @jezhumble.net · 21/02/2026
2026 Olympic Gold figure skater Alysa Liu's work is so beautiful and joyful, take some time out of your day and watch this performance from the 2026 US figure skating championships: youtube.com/watch?v=9PTq.... What an absolute legend (and East Bay hero!)
youtube.com
Alysa Liu "Promise" 2026 U.S. Figure Skating Championships MUSIC ONLY NO COMMENTARY
YouTube video by january park
150
Jez Humble @jezhumble.net · 19/10/2025
Two precepts from an interview with Alan Garner: d.lib.rochester.edu/camelot/text...
 This I got from my grandfather. He was a craftsman, and he gave me two precepts which as a writer I've not been able to get away from. One was always take as long as the job tells you to take, because the job will be there when you are not, and you don't want people to say, what fool did that? So I'm a very slow worker. The other precept was if the other chap can do the job, let him. In other words, do only what is uniquely yours.
020
Jez Humble @jezhumble.net · 23/09/2025
My team is hiring an SRE manager, in person in San Francisco: www.google.com/about/career...
google.com
Software Engineering Manager II, Site Reliability Engineering — Google Careers
010
Reposted by Jez Humble
Zohran Kwame Mamdani @zohrankmamdani.bsky.social · 08/09/2025
"How Are the Very Rich Feeling About New York’s Next Mayor?" A Dramatic Reading of The Recent New York Times Dispatch from the Hamptons. Presented by The Gilded Age's Morgan Spector.
852309367767
Jez Humble @jezhumble.net · 09/09/2025
Anyone who wants the full story and context should read @sarahkendzior.bsky.social’s “Hiding in Plain Sight”. Read this excerpt from “Jane Doe v. Donald J. Trump and Jeffrey Epstein”
030
Jez Humble @jezhumble.net · 04/09/2025
Here is a good article. Teaser: “I believe that all learning is fundamentally coercive”. hbr.org/2002/03/the-...
hbr.org
The Anxiety of Learning
Everyone touts learning organizations, but few actually exist. World-renowned psychologist Edgar H. Schein draws on decades of pioneering research to explain why.
060
Jez Humble @jezhumble.net · 14/08/2025
You're welcome! If anyone else wants a signed copy of the DevOps Handbook (while stocks last) DM me with a receipt for US$100+ (any currency) to any of these charities supporting Palestinians, dated today: projecthope.org islamic-relief.org/appeals/pale... unrwa.org pcrf.net palestinercs.org/en
projecthope.org
Project HOPE | Advancing Global Health & Saving Lives
For more than 65 years, Project HOPE has been on the front lines of the world’s greatest health challenges.
0297
Jez Humble @jezhumble.net · 14/08/2025
Live footage of me in today’s postmortem review where a developer described the behavior-changing code that they couldn’t be bothered to put behind a feature flag / experiment as a “refactoring” and everyone kicked off about how dangerous “refactorings” are
media.tenor.com
a close up of a man 's face with a red light coming out of his eyes
ALT: a close up of a man 's face with a red light coming out of his eyes
1152
Jez Humble @jezhumble.net · 03/08/2025
I have 45 signed copies of the DevOps Handbook to give away. DM me with a receipt for US$100 or more (any currency!) to any of the following charities supporting Palestinians dated today with your address. projecthope.org islamic-relief.org/appeals/pale... unrwa.org pcrf.net palestinercs.org/en
islamic-relief.org
Palestine Emergency Appeal
Help Save Lives in Palestine — Islamic Relief Is on the Ground Providing Life-Saving Aid. Support vulnerable families today
1158
Reposted by Jez Humble
Mar Hicks @histoftech.bsky.social · 18/07/2025
A U.S. surgeon trying to have a “peer to peer” consultation with a doctor at a health insurance company who is hiding his identity as her patient gets denied coverage. And it gets worse from there. You have to see it to believe it. (1/2)
23958062474
Jez Humble @jezhumble.net · 14/07/2025
I love watching the corrupt Democratic Party establishment, along with their paymasters and enablers in the media, running around absolutely peeing their pants at the thought of Mamdani becoming Mayor of NYC. I cannot wait for him to win.
1213
Jez Humble @jezhumble.net · 14/07/2025
TIL that the behemoth that is the modern scientific publishing industry was created by Robert Maxwell (father of Ghislaine) www.theguardian.com/science/2017...
theguardian.com
Is the staggeringly profitable business of scientific publishing bad for science?
The long read: It is an industry like no other, with profit margins to rival Google – and it was created by one of Britain’s most notorious tycoons: Robert Maxwell
130
Reposted by Jez Humble
Sarah Taber @sarahtaber.bsky.social · 13/07/2025
The corps like Publix that get mad about CIW & fair farm wages, it's not bc proper farm wages will put them out of business. It's because they get upset when ANY workers get collective bargaining wins. It's just generic anti-labor politics- not an existential threat to their business.
2748123
Reposted by Jez Humble
Sarah Taber @sarahtaber.bsky.social · 13/07/2025
Ex-farm worker here. We need to talk about this whole "But a living wage for farm workers would spike the cost of food!" thing. Not true AT ALL. Y'all don't understand how fast experienced farm workers are. The average tomato picker pulls 650lbs per hour. At $20/hr, that's $0.03/lb for labor.
513201396156
Jez Humble @jezhumble.net · 13/07/2025
So many believed the lie that immigrants will take their jobs & voted for 47 when really it's the GOP taking people's jobs & driving down wages to benefit huge, rent-seeking corporations. But why were you so ready to believe the lie? By @moreperfectunion.bsky.social www.youtube.com/watch?v=PlCj...
youtube.com
He Voted For Trump. It Cost Him His Job
YouTube video by More Perfect Union
171
Jez Humble @jezhumble.net · 12/07/2025
When the first family separations of migrants happened under Pres. 45, one of the talking points was that it was being done to stop people trafficking. In fact, as this Pulitzer Prize winning investigation shows, it was done out of pure cruelty as a “deterrent” www.theatlantic.com/magazine/arc...
theatlantic.com
An American Catastrophe
The secret history of the U.S. government’s family-separation policy
020
Jez Humble @jezhumble.net · 06/07/2025
“Any political system that prioritizes punishing those who protest genocide rather than stopping the killing has clearly exhausted itself.” www.theguardian.com/us-news/ng-i...
theguardian.com
The destruction of Palestine is breaking the world | Moustafa Bayoumi
The rules of the institutions that define our lives bend like reeds when it comes to Israel – so much that the whole global order is on the verge of collapse
082
Jez Humble @jezhumble.net · 22/06/2025
Catastrophic that after many months of funding and arming a genocide, the USA is now directly bombing Iran. All because 45 tore up the JCPOA agreement out of spite and hubris. The obstacle to peace in the Levant is the _actually_ nuclear-armed and genocidal Israeli state and its partner the USA.
1133
Jez Humble @jezhumble.net · 14/06/2025
Reading @patigallardo.bsky.social's review of Team Topologies patricia.no/2025/05/24/t... and she mentions the original research on psychological safety was by amycedmondson.com/psychologica.... I'm now reading Edmondson's book The Fearless Organization. Newsflash from 2018
Psychological safety is not immunity from consequences, nor is it a state of high self-regard. In psychologically safe workplaces, people know they might fail, they might receive performance feedback that says they're not meeting expectations, and they might lose their jobs due to changes in the industry environment or even to a lack of competence in their role. These attributes of the modern workplace are unlikely to disappear anytime soon. But in a psychologically safe workplace, people are not hindered by interpersonal fear. They feel willing and able to take the inherent interpersonal risks of candor. They fear holding back their full participation more than they fear sharing a potentially sensitive, threatening, or wrong idea. The fearless organization is one in which interpersonal fear is minimized so that team and organizational performance can be maximized in a knowledge intensive world. It is not one devoid of anxiety about the future!
1224
Jez Humble @jezhumble.net · 13/05/2025
And another one: ethz.ch/en/news-and-...
ethz.ch
ETH Zurich researchers discover new security vulnerability in Intel processors
Computer scientists at ETH Zurich discover new class of vulnerabilities in Intel processors, allowing them to break down barriers between different users of a processor using carefully crafted instruc...
061
Jez Humble @jezhumble.net · 13/05/2025
Today’s fun news www.vusec.net/projects/tra...
vusec.net
Training Solo - vusec
On the Limitations of Domain Isolation Against Spectre-v2 Attacks TL;DR We present Training Solo, the first systematic analysis of self-training Spectre-v2 attacks that break the core assumption behin...
100
Jez Humble @jezhumble.net · 09/05/2025
“Vibe prioritization”: when you have to do something because a VP thinks it’s a good idea rather than being stack ranked based on business value
3282
Reposted by Jez Humble
Jez Humble @jezhumble.net · 03/05/2025
This hasn’t taken off, but if it does, you should all go see Titanique in NYC before it ends its run on June 15. Definitely the best show I’ve ever seen. newyork.titaniquemusical.com
newyork.titaniquemusical.com
Home
When the music of Céline Dion makes sweet Canadian love with the film Titanic, you get TITANIQUE, NYC's smash-hit musical comedy.
021
Reposted by Jez Humble
Jez Humble @jezhumble.net · 03/05/2025
While I’m on the topic of AI agents, I was re-reading the Joel on Software classic “The Law of Leaky Abstractions” and came across this gem. The article has aged well. www.joelonsoftware.com/2002/11/11/t...
The law of leaky abstractions means that whenever somebody comes up with a wizzy new code-generation tool that is supposed to make us all ever-so-efficient, you hear a lot of people saying “learn how to do it manually first, then use the wizzy tool to save time.” Code generation tools which pretend to abstract out something, like all abstractions, leak, and the only way to deal with the leaks competently is to learn about how the abstractions work and what they are abstracting. So the abstractions save us time working, but they don’t save us time learning.

And all this means that paradoxically, even as we have higher and higher level programming tools with better and better abstractions, becoming a proficient programmer is getting harder and harder.
3307
Jez Humble @jezhumble.net · 03/05/2025
From a CD point of view, you can think of an AI agent as an ephemeral junior developer. So all the stuff you needed before like a CD pipeline, good test coverage, small changes etc, you still need now, but even more so because per this IBM slide from 1979, a computer can never be held accountable.
1145
Reposted by Jez Humble
doy.bsky.social @doy.bsky.social · 08/12/2024
John, wait until you find out trees aren't real eukaryotewritesblog.com/2021/05/02/t...
eukaryotewritesblog.com
There’s no such thing as a tree (phylogenetically)
Dendronization – Evolving into a tree-like morphology. (In the style of “carcinization”.) From ‘dendro’, the ancient Greek root for tree.
1613932
Jez Humble @jezhumble.net · 17/08/2023
Here’s something I’ve been working on for the last couple of years at Google: how to think about and measure platform reliability. youtu.be/es3DNd5Qipg
youtu.be
Why Is My App SLOw? Defining Reliability in Platform Engineering • Jez Humble • GOTO 2023
This presentation was recorded at GOTO Aarhus 2023. #GOTOcon #GOTOaarhttps://gotoaarhus.comJez Humble - SRE at Google Cloud & Lecturer at UC Berkeley @JezHum...
291
Jez Humble @jezhumble.net · 16/07/2023
I learned a lot about quantum computing by reading this review of Michio Kaku’s new book on the subject: scottaaronson.blog/?p=7321
020
Jez Humble @jezhumble.net · 11/05/2023
California’s Prop 12, which prohibits the sale of eggs or meat from animals kept in extreme confinement, was just upheld in the Supreme Court. One objection of pork producers was that if this stands, states can make similar regulations on goods sold, like paying workers minimum wage. Let’s goooooo!
The attorney for the pork producers argued that if California’s law were upheld, it would open the door for other states to seek changes that would affect the national economy.
For example, they said Oregon could require that products sold there from other states must be made by workers who were paid the state’s higher minimum wage, while Texas might require products sold there be made by only lawful U.S. residents.
030