CTO @ Amazon
Joined December 2006
- Tweets 11,549
- Following 243
- Followers 339,275
- Likes 2,553
1,518 Photos and videos
May 14
if I am less responsive the coming three weeks, it is because I am out and about with the ladies and lads collecting silverware throughout Europe. #Londonisred
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Apr 22
The best teams solve problems nobody notices. Ravi Nagayach, Prashant Singh, Kshitij Gupta, and the Lambda networking team have been doing exactly that for about a decade. Read their story here: allthingsdistributed.com/202…
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Apr 17
I have two tickets for "Paddington the musical" for tonight at 7m at the Savoy Theatre in London. I cant make it. Anyonese else a paddington fan? No costs. Just a picture of you in the theatre so I know you are not a scalper. FCFS.
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Apr 7
For two decades, S3 has been an object store, but today it's something broader. S3 Files lets you mount any bucket as a filesystem—no copies, no sync scripts, no choosing between file and object. @andywarfield tells the full story, including the "filerectories" that almost made the cut. allthingsdistributed.com/202…
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Apr 2
You can't optimize what you can't measure. Carbon and cost are the similar signal. The new AWS Sustainability console puts emissions data in the right hands, without exposing billing data. Measure it like it matters. aws.amazon.com/blogs/aws/ann…
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Mar 20
Excellent work indeed: tokio.rs/blog/2026-03-18-dia…
Mar 19
At AWS we're big Rust users. Lambda, DSQL, S3, EC2, Bedrock, and many more run Rust code.
Dial9 is a new tool, built at AWS, for diving deep into the performance of tokio-based applications.
Good work, Russel!
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Feb 17
A little over three years ago, @byroncook and I had a chat about automated reasoning. Since then, the landscape has shifted faster than any of us anticipated. AI agents are in production, generating code, making decisions, and we need ways to prove their correctness. I sat down with Byron for a follow-up to understand what’s changed and what we’re doing about it: allthingsdistributed.com/202…
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Feb 12
Whether you like Pep and City or not, he sure has cojones.
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Jan 27
The latest Now Go Build CTO Fellowship cohort is reimagining education from the ground up. They're not accepting "we can't do that." They're asking, "why haven't we tried this?" Meet the Fellows: allthingsdistributed.com/202…
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This is even more impressive when you know that S3 processes over 100,000,000 requests per second.
Light travels less than 10 feet in the time between requests arriving at S3.
Jan 6
On 1 Dec 2020, AWS S3 announced that all writes to S3 are now strongly consistent (not eventually consistent, like before) *at no price change or latency changes* to any customers.
Pulling this off was probably one of the biggest invisible engineering achievements of the decade
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17 Dec 2025
I a see lot of anxiety with customers when it come to AI. Lots of FOMO, fear of missing out. Fear is not a good decision driver. Hence my advise to get educated first before you dive in.That there is no shame in hitting a pause button.
Partner Globant and I had an interesting fireside chat of which a clip is circulating.
And please do not let the media determine your architecture.
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16 Dec 2025
As we head into the new year, I want to share an article by @andywarfield called "A little bit uncomfortable". It touches on a topic we don't talk about nearly enough--vulnerability and the relationship between fear and growth. allthingsdistributed.com/202…
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9 Dec 2025
What did you do with the newspaper insert @Werner gave us at his final @AWSreInvent keynote? #renaissancedeveloper
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5 Dec 2025
Thank you to all the builders who joined us at re:Invent. We created The Kernel—a newspaper by builders, for builders. I hope it sparks new ideas as you head into the new year. Now go build!
thekernel.news
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3 Dec 2025
This year's Now Go Build Award goes to Raphael Quisumbing @RaphaelFra20009—a true "renaissance developer." He builds communities, mentors others, and translates tech into real solutions. Kudos to all 265 AWS Heroes across 58 countries leading the way. Now, go build!
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25 Nov 2025
AI in the human loop, not the other way around. This shift will transform how we combat loneliness, deliver
care, build systems, and educate ourselves in an era of rapid change.
Read my tech predictions for 2026 on All Things Distributed: allthingsdistributed.com/202…
Now, go build!
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9 Nov 2025
This year at #AWS re:invent I have the honour of a proper closing keynote: 3:30 PM on Thursday. Marketing calls it a "special keynote" but I would just call it 'the "last thing between you, me and the party" It will be special though ... reinvent.awsevents.com/agend…
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28 Oct 2025
The best technology blends into the background of everyday life. allthingsdistributed.com/202…
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