Ken Finnigan
@kenfinnigan.me
Distributed systems builder, author.
https://www.commonhaus.org/ Council member.
Observability focused. Ex: @workday, @redhat.
Amateur genealogist.
Opinions are my own. he/him
Mastodon - @kenfinnigan@fosstodon.org
https://www.commonhaus.org/ Council member.
Observability focused. Ex: @workday, @redhat.
Amateur genealogist.
Opinions are my own. he/him
Mastodon - @kenfinnigan@fosstodon.org
Reposted by Ken Finnigan
I made a substack: charitydotwtf.substack.com.
Some people questioned the ethics of doing so, so I put the project on hold for a few days to think and ask questions.
I have decided to stay. Here is why. (also xpost: charity.wtf/2025/12/19/h...)
charitydotwtf.substack.com/p/hello-worl...
Some people questioned the ethics of doing so, so I put the project on hold for a few days to think and ask questions.
I have decided to stay. Here is why. (also xpost: charity.wtf/2025/12/19/h...)
charitydotwtf.substack.com/p/hello-worl...
Hello World
On platform choices, professional responsibilities, and picking your battles
charitydotwtf.substack.com
December 19, 2025 at 12:47 AM
I made a substack: charitydotwtf.substack.com.
Some people questioned the ethics of doing so, so I put the project on hold for a few days to think and ask questions.
I have decided to stay. Here is why. (also xpost: charity.wtf/2025/12/19/h...)
charitydotwtf.substack.com/p/hello-worl...
Some people questioned the ethics of doing so, so I put the project on hold for a few days to think and ask questions.
I have decided to stay. Here is why. (also xpost: charity.wtf/2025/12/19/h...)
charitydotwtf.substack.com/p/hello-worl...
Transformers in Action (shortener.manning.com/JdAP) is an excellent resource for learning how various transformer models work, how to specialize and train models, and ethical LLMs.
Thanks to Nicole Königstein for this @manning.com book! It's a great read
Thanks to Nicole Königstein for this @manning.com book! It's a great read
Transformers in Action - Nicole Koenigstein
Understand the architecture that underpins today’s most powerful AI models.
Transformers are the superpower behind large language models (LLMs) like ChatGPT, Gemini, and Claude. Transformers in Actio...
shortener.manning.com
December 25, 2025 at 3:08 AM
Transformers in Action (shortener.manning.com/JdAP) is an excellent resource for learning how various transformer models work, how to specialize and train models, and ethical LLMs.
Thanks to Nicole Königstein for this @manning.com book! It's a great read
Thanks to Nicole Königstein for this @manning.com book! It's a great read
Reposted by Ken Finnigan
putting this out there - anyone know someone or have recs for leadership coaches that specialize in tech + autism/adhd?
December 6, 2025 at 8:35 PM
putting this out there - anyone know someone or have recs for leadership coaches that specialize in tech + autism/adhd?
Reposted by Ken Finnigan
Check out this week's o11y newsletter with great content from OpenTelemetry to OpenSearch:
o11y.news/2025-12-01/
#observability
o11y.news/2025-12-01/
#observability
December 1, 2025 at 2:01 PM
Check out this week's o11y newsletter with great content from OpenTelemetry to OpenSearch:
o11y.news/2025-12-01/
#observability
o11y.news/2025-12-01/
#observability
Reposted by Ken Finnigan
You will hear of launches and rumors of launches—but here's how to test Gemini 3 yourself. Pick one stubborn document or photo. Run it through our #genealogy research-tuned Gem today (Gemini 2.5). Save everything. When G3 lands, rerun the exact same prompts. If it's real, you'll feel the difference.
November 18, 2025 at 12:16 AM
You will hear of launches and rumors of launches—but here's how to test Gemini 3 yourself. Pick one stubborn document or photo. Run it through our #genealogy research-tuned Gem today (Gemini 2.5). Save everything. When G3 lands, rerun the exact same prompts. If it's real, you'll feel the difference.
Reposted by Ken Finnigan
Check out this week's o11y newsletter with great news on OpenTelemetry releases to instrumentation score coming to Prometheus to AIOps and more:
o11y.news/2025-11-17/
#observability
o11y.news/2025-11-17/
#observability
November 17, 2025 at 3:25 PM
Check out this week's o11y newsletter with great news on OpenTelemetry releases to instrumentation score coming to Prometheus to AIOps and more:
o11y.news/2025-11-17/
#observability
o11y.news/2025-11-17/
#observability
Current progress of McLaren P1 LEGO. By far the most complex and intricate set I’ve ever built!
November 17, 2025 at 3:05 PM
Current progress of McLaren P1 LEGO. By far the most complex and intricate set I’ve ever built!
Reposted by Ken Finnigan
Hi everyone! An ongoing reorganization at my current employer has prompted me to seek for a new role and would appreciate your support.
I'm open to remote (anywhere) and hybrid roles in Switzerland. I have 25+ years experience as a software developer, 8 as devrel www.linkedin.com/posts/aalmir...
I'm open to remote (anywhere) and hybrid roles in Switzerland. I have 25+ years experience as a software developer, 8 as devrel www.linkedin.com/posts/aalmir...
#opensource #opentowork | Andres Almiray
Hi everyone! An ongoing reorganization at my current employer has prompted me to seek for a new role and would appreciate your support.
I'm open to remote (anywhere) and hybrid roles in Switzerland (...
www.linkedin.com
November 11, 2025 at 10:46 AM
Hi everyone! An ongoing reorganization at my current employer has prompted me to seek for a new role and would appreciate your support.
I'm open to remote (anywhere) and hybrid roles in Switzerland. I have 25+ years experience as a software developer, 8 as devrel www.linkedin.com/posts/aalmir...
I'm open to remote (anywhere) and hybrid roles in Switzerland. I have 25+ years experience as a software developer, 8 as devrel www.linkedin.com/posts/aalmir...
Reposted by Ken Finnigan
Excited to share Part 2, the final article of my research on Secrets of Performance Tuning #Java on #Kubernetes. Your support means a lot! Drop a comment and share your thoughts!
www.linkedin.com/pulse/secret...
www.linkedin.com/pulse/secret...
Secrets of Performance Tuning Java on Kubernetes - The Article (Part 2)
In Part 1, we saw that the JVM doesn’t always play nicely with containers, and we must be aware of that, and adjust accordingly. Now let’s invite Kubernetes to the party and see how things get really ...
www.linkedin.com
November 12, 2025 at 11:15 PM
Excited to share Part 2, the final article of my research on Secrets of Performance Tuning #Java on #Kubernetes. Your support means a lot! Drop a comment and share your thoughts!
www.linkedin.com/pulse/secret...
www.linkedin.com/pulse/secret...
Reposted by Ken Finnigan
Hello Internet! Ready for KubeCon? 🔥
To celebrate last week’s launch of #Agent0 - the integrated Agentic #AI inside #Dash0 - we made something we’re pretty stoked about.
At #KubeConNA 2025, we’re giving away five custom MtG-style cards. Find us at booth 710 - first teaser: The Seeker & The Oracle!
To celebrate last week’s launch of #Agent0 - the integrated Agentic #AI inside #Dash0 - we made something we’re pretty stoked about.
At #KubeConNA 2025, we’re giving away five custom MtG-style cards. Find us at booth 710 - first teaser: The Seeker & The Oracle!
November 8, 2025 at 5:24 PM
Reposted by Ken Finnigan
That's a wrap for #NODES2025!
Our 7th edition brought together an incredible global graph community!
24-hour streaming 160 talks from 200 speakers from all over the world.
Soon: all talks will be available on our YouTube channel (you can already watch some! https://bit.ly/43WU14G)
THANK YOU!
Our 7th edition brought together an incredible global graph community!
24-hour streaming 160 talks from 200 speakers from all over the world.
Soon: all talks will be available on our YouTube channel (you can already watch some! https://bit.ly/43WU14G)
THANK YOU!
November 7, 2025 at 1:35 AM
That's a wrap for #NODES2025!
Our 7th edition brought together an incredible global graph community!
24-hour streaming 160 talks from 200 speakers from all over the world.
Soon: all talks will be available on our YouTube channel (you can already watch some! https://bit.ly/43WU14G)
THANK YOU!
Our 7th edition brought together an incredible global graph community!
24-hour streaming 160 talks from 200 speakers from all over the world.
Soon: all talks will be available on our YouTube channel (you can already watch some! https://bit.ly/43WU14G)
THANK YOU!
Reposted by Ken Finnigan
Check out this week's o11y newsletter with excellent contribs from non-pillars to new instrumentation method and OpenTelemetry material:
o11y.news/2025-11-03/
#observability
o11y.news/2025-11-03/
#observability
November 3, 2025 at 5:45 PM
Check out this week's o11y newsletter with excellent contribs from non-pillars to new instrumentation method and OpenTelemetry material:
o11y.news/2025-11-03/
#observability
o11y.news/2025-11-03/
#observability
Reposted by Ken Finnigan
This was on for me when I checked. If you use LinkedIn, it's worth checking on. I definitely don't want my posts there being used as training data.
Last chance to turn it off.
On Monday, November 3rd, Microsoft will start using your LinkedIn data for AI training. And remember, you're opted in by default.
To toggle it off 👉 Account - Settings & Privacy > Data privacy > Data for Generative AI Improvement.
On Monday, November 3rd, Microsoft will start using your LinkedIn data for AI training. And remember, you're opted in by default.
To toggle it off 👉 Account - Settings & Privacy > Data privacy > Data for Generative AI Improvement.
November 1, 2025 at 5:46 PM
This was on for me when I checked. If you use LinkedIn, it's worth checking on. I definitely don't want my posts there being used as training data.
Reposted by Ken Finnigan
Just realized I haven't announced this here yet - The 9th edition of my book "Java in a Nutshell" will be published by O'Reilly in 2026. Watch this space for an announcement of early access. #java #programming
October 17, 2025 at 3:12 PM
Just realized I haven't announced this here yet - The 9th edition of my book "Java in a Nutshell" will be published by O'Reilly in 2026. Watch this space for an announcement of early access. #java #programming
Had a great weekend in London catching up with friends! Now at Heathrow, and excited to get home and see the family
October 14, 2025 at 11:43 AM
Had a great weekend in London catching up with friends! Now at Heathrow, and excited to get home and see the family
Reposted by Ken Finnigan
Check out this week's o11y newsletter with a range of good things from practitioners sharing insights to OTel reference material to new tooling:
o11y.news/2025-10-13/
#observability
o11y.news/2025-10-13/
#observability
October 13, 2025 at 2:56 PM
Check out this week's o11y newsletter with a range of good things from practitioners sharing insights to OTel reference material to new tooling:
o11y.news/2025-10-13/
#observability
o11y.news/2025-10-13/
#observability
Reposted by Ken Finnigan
Dash0 raises $35M #SeriesA!🚀
#Observability is too noisy, complex & expensive. We started Dash0 to fix that - and 300+ customers joined us.
Now we’ve raised $35M in Series A led by Accel & Cherry Ventures, with DIG Ventures.
Thanks to our investors & angels for the support!
👉 dash0.link/series-a
#Observability is too noisy, complex & expensive. We started Dash0 to fix that - and 300+ customers joined us.
Now we’ve raised $35M in Series A led by Accel & Cherry Ventures, with DIG Ventures.
Thanks to our investors & angels for the support!
👉 dash0.link/series-a
October 2, 2025 at 3:06 PM
Dash0 raises $35M #SeriesA!🚀
#Observability is too noisy, complex & expensive. We started Dash0 to fix that - and 300+ customers joined us.
Now we’ve raised $35M in Series A led by Accel & Cherry Ventures, with DIG Ventures.
Thanks to our investors & angels for the support!
👉 dash0.link/series-a
#Observability is too noisy, complex & expensive. We started Dash0 to fix that - and 300+ customers joined us.
Now we’ve raised $35M in Series A led by Accel & Cherry Ventures, with DIG Ventures.
Thanks to our investors & angels for the support!
👉 dash0.link/series-a
Reposted by Ken Finnigan
So much, so amazing. Saw them live in a small-ish pub in London when they were big in Oz, but not much elsewhere. Most energy I have ever seen in a live show, bar none. Amazing.
October 1, 2025 at 2:39 AM
So much, so amazing. Saw them live in a small-ish pub in London when they were big in Oz, but not much elsewhere. Most energy I have ever seen in a live show, bar none. Amazing.
Reposted by Ken Finnigan
QCon San Francisco 2025: Full Schedule Available 🚀
6 weeks to go! 90+ speakers, 12 tracks, proven patterns from senior practitioners.
Keynotes include: Nicole Forsgren on DevEx, "Hidden Decisions" by Shawna Martell & Dan Fike, plus AI engineering & leadership tracks.
🔗 bit.ly/3IGltgS
#QConSF
6 weeks to go! 90+ speakers, 12 tracks, proven patterns from senior practitioners.
Keynotes include: Nicole Forsgren on DevEx, "Hidden Decisions" by Shawna Martell & Dan Fike, plus AI engineering & leadership tracks.
🔗 bit.ly/3IGltgS
#QConSF
September 30, 2025 at 4:11 PM
QCon San Francisco 2025: Full Schedule Available 🚀
6 weeks to go! 90+ speakers, 12 tracks, proven patterns from senior practitioners.
Keynotes include: Nicole Forsgren on DevEx, "Hidden Decisions" by Shawna Martell & Dan Fike, plus AI engineering & leadership tracks.
🔗 bit.ly/3IGltgS
#QConSF
6 weeks to go! 90+ speakers, 12 tracks, proven patterns from senior practitioners.
Keynotes include: Nicole Forsgren on DevEx, "Hidden Decisions" by Shawna Martell & Dan Fike, plus AI engineering & leadership tracks.
🔗 bit.ly/3IGltgS
#QConSF
I’ll be visiting London from 9-14 Oct if anyone I know would like to catch up. Look forward to being back in blighty!
September 29, 2025 at 1:14 PM
I’ll be visiting London from 9-14 Oct if anyone I know would like to catch up. Look forward to being back in blighty!
Reposted by Ken Finnigan
in other news, my upcoming trip to the UK is likely to be my last for quite some time.
so do get in touch with our sales team if you'd like to have me give a talk in-person in London first two weeks of Oct, before rules shift from you *may* let me use the loo, to you *must not* let me use the loo.
so do get in touch with our sales team if you'd like to have me give a talk in-person in London first two weeks of Oct, before rules shift from you *may* let me use the loo, to you *must not* let me use the loo.
Nothing Wes said is new, he just gave an incoherent interview
The UKSC ruling happened in April.
EHRC Interim Guidance came soon after.
Official EHRC guidance has been finalised and sent to the government, we are not privy to what it says yet - that’ll be sometime before the end of the year.
The UKSC ruling happened in April.
EHRC Interim Guidance came soon after.
Official EHRC guidance has been finalised and sent to the government, we are not privy to what it says yet - that’ll be sometime before the end of the year.
September 24, 2025 at 1:07 PM
in other news, my upcoming trip to the UK is likely to be my last for quite some time.
so do get in touch with our sales team if you'd like to have me give a talk in-person in London first two weeks of Oct, before rules shift from you *may* let me use the loo, to you *must not* let me use the loo.
so do get in touch with our sales team if you'd like to have me give a talk in-person in London first two weeks of Oct, before rules shift from you *may* let me use the loo, to you *must not* let me use the loo.
Reposted by Ken Finnigan
#RootsTech Registration is now open for 2026!
Attend this incredible conference on March 5-7, 2026 in Salt Lake City, UT. Register at familysearch.org/en/rootstech/
Attending from home and register for #FREE at familysearch.org/en/rootstech/ #FamilySearch
#genealogy #familyhistory
Attend this incredible conference on March 5-7, 2026 in Salt Lake City, UT. Register at familysearch.org/en/rootstech/
Attending from home and register for #FREE at familysearch.org/en/rootstech/ #FamilySearch
#genealogy #familyhistory
September 25, 2025 at 1:17 AM
#RootsTech Registration is now open for 2026!
Attend this incredible conference on March 5-7, 2026 in Salt Lake City, UT. Register at familysearch.org/en/rootstech/
Attending from home and register for #FREE at familysearch.org/en/rootstech/ #FamilySearch
#genealogy #familyhistory
Attend this incredible conference on March 5-7, 2026 in Salt Lake City, UT. Register at familysearch.org/en/rootstech/
Attending from home and register for #FREE at familysearch.org/en/rootstech/ #FamilySearch
#genealogy #familyhistory
Reposted by Ken Finnigan
🚀 Dash0 #SyntheticMonitoring is now GA!
Check your APIs from around the world, catch #SSL issues early, and see instantly if errors come from #syntheticchecks or real users, all deeply integrated with Dash0 #tracing & #triage.
👉 Discover more: dash0.link/-synthetic-m...
Check your APIs from around the world, catch #SSL issues early, and see instantly if errors come from #syntheticchecks or real users, all deeply integrated with Dash0 #tracing & #triage.
👉 Discover more: dash0.link/-synthetic-m...
September 25, 2025 at 10:03 AM
🚀 Dash0 #SyntheticMonitoring is now GA!
Check your APIs from around the world, catch #SSL issues early, and see instantly if errors come from #syntheticchecks or real users, all deeply integrated with Dash0 #tracing & #triage.
👉 Discover more: dash0.link/-synthetic-m...
Check your APIs from around the world, catch #SSL issues early, and see instantly if errors come from #syntheticchecks or real users, all deeply integrated with Dash0 #tracing & #triage.
👉 Discover more: dash0.link/-synthetic-m...
Reposted by Ken Finnigan
Yup. Nothing odd going on here at all. Gah.
September 24, 2025 at 7:01 AM
Yup. Nothing odd going on here at all. Gah.
Reposted by Ken Finnigan
Are you an experienced software buyer? I could use your help.
I'm working on the second edition of "Observability Engineering", and hoping to include the kind of advice an experienced principal engineer might give a staff engineer buying for the first time.
charity.wtf/2025/09/19/a...
I'm working on the second edition of "Observability Engineering", and hoping to include the kind of advice an experienced principal engineer might give a staff engineer buying for the first time.
charity.wtf/2025/09/19/a...
Are you an experienced software buyer? I could use some help.
If it seems like I’ve been relatively quiet lately on social media and my blog, that’s because I have. Liz, Austin, George and I have been busy toiling away on the second edition of “Observability …
charity.wtf
September 19, 2025 at 6:25 PM
Are you an experienced software buyer? I could use your help.
I'm working on the second edition of "Observability Engineering", and hoping to include the kind of advice an experienced principal engineer might give a staff engineer buying for the first time.
charity.wtf/2025/09/19/a...
I'm working on the second edition of "Observability Engineering", and hoping to include the kind of advice an experienced principal engineer might give a staff engineer buying for the first time.
charity.wtf/2025/09/19/a...