Holden Karau
@holdenkarau.com
she/her, mostly OSS big data (Spark, Dask, Ray, and friends). I ❤️☕️🛵. I don't represent my employer. Live @ http://twitch.tv/holdenkarau , http://tech.lgbt/@holden , Twitter was @holdenkarau
Come and join me for more hacking on @apachespark today -- www.youtube.com/watch?v=u5F_... I'm going to be working on github.com/apache/spark...
Spark PR adventures: Determinism Issues (maybe?)
YouTube video by Holden Karau
www.youtube.com
November 13, 2025 at 6:59 PM
Come and join me for more hacking on @apachespark today -- www.youtube.com/watch?v=u5F_... I'm going to be working on github.com/apache/spark...
Reposted by Holden Karau
The benevolent dictator model feels tempting for #OSS - faster, fewer debates. Then a PR argument with the single person in charge reminds me:
Speed isn’t health. Community is.
Speed isn’t health. Community is.
November 7, 2025 at 7:48 PM
The benevolent dictator model feels tempting for #OSS - faster, fewer debates. Then a PR argument with the single person in charge reminds me:
Speed isn’t health. Community is.
Speed isn’t health. Community is.
Come and join me for a relaxing Friday afternoon of hacking on Apache Spark — twitch.tv/holdenkarau 👍
holdenkarau - Twitch
Holden is a transgender Canadian open source developer with a focus on Apache Spark and related
twitch.tv
November 7, 2025 at 9:35 PM
Come and join me for a relaxing Friday afternoon of hacking on Apache Spark — twitch.tv/holdenkarau 👍
Come and join me for some not-so-spooky zombie PR adventures: bringing back some "stale"/"dead" PRs around TTLs and other fun adventures in @ApacheSpark -- www.twitch.tv/holdenkarau / www.youtube.com/watch?v=u3Qo...
holdenkarau - Twitch
Zombie Apache Spark PR dev time :p
www.twitch.tv
November 3, 2025 at 6:28 PM
Come and join me for some not-so-spooky zombie PR adventures: bringing back some "stale"/"dead" PRs around TTLs and other fun adventures in @ApacheSpark -- www.twitch.tv/holdenkarau / www.youtube.com/watch?v=u3Qo...
Finishing up my slides for @smalldatasf in the @McDonalds parking lot with a Frappé. The free WiFi is so so but I needed to get out of the house :) P.S. want to hear about when not to use Spark? Check out my session this Wednesday ❤️
November 3, 2025 at 12:55 AM
Finishing up my slides for @smalldatasf in the @McDonalds parking lot with a Frappé. The free WiFi is so so but I needed to get out of the house :) P.S. want to hear about when not to use Spark? Check out my session this Wednesday ❤️
Come and join me reviewing some @apache.org Spark PRs for halloween. Spooooky? www.youtube.com/watch?v=1ilF... / www.twitch.tv/holdenkarau
Spooky Apache Spark Code Review
YouTube video by Holden Karau
www.youtube.com
October 31, 2025 at 10:29 PM
Come and join me reviewing some @apache.org Spark PRs for halloween. Spooooky? www.youtube.com/watch?v=1ilF... / www.twitch.tv/holdenkarau
New Orleans Spark/Data/misc Friends! I'm going to be in your city for current.confluent.io/new-orleans starting Monday-ish if you want to catch up :)
New Orleans
Current is the biggest event in data streaming. Over two days in New Orleans, developers, data practitioners, and tech executives will come together to shape the future of Apache Kafka, Apache Flink, ...
current.confluent.io
October 26, 2025 at 8:15 PM
New Orleans Spark/Data/misc Friends! I'm going to be in your city for current.confluent.io/new-orleans starting Monday-ish if you want to catch up :)
Come and join me for a lazy Sunday hacking on the streaming appendix of High Performance Spark 2e (which you can also pre-order :D) -- www.twitch.tv/holdenkarau / www.youtube.com/watch?v=zraw... :D
holdenkarau - Twitch
Working on High Performance Spark 2e: Streaming Appendix Continued
www.twitch.tv
October 26, 2025 at 6:21 PM
Come and join me for a lazy Sunday hacking on the streaming appendix of High Performance Spark 2e (which you can also pre-order :D) -- www.twitch.tv/holdenkarau / www.youtube.com/watch?v=zraw... :D
Pandas! I’m in Seattle! If any nerds want to catch up before Worldcon let me know :)
August 11, 2025 at 2:53 PM
Pandas! I’m in Seattle! If any nerds want to catch up before Worldcon let me know :)
Got diverted to a state I hadn’t been planning on while trying to make it to Chicago: great news I can legally pee in NM wasn’t sure 😝 ugh I hate our new future.
July 12, 2025 at 3:27 AM
Got diverted to a state I hadn’t been planning on while trying to make it to Chicago: great news I can legally pee in NM wasn’t sure 😝 ugh I hate our new future.
Reposted by Holden Karau
From bar napkin to production: @holdenkarau.com built AI to help appeal health insurance denials. Real ML deployment talk - privacy, middleware, & questionable frontend code!
Health Insurance Appeals with Generative AI: From Lab to Production • Holden Karau • GOTO 2024
This presentation was recorded at GOTO Chicago 2024. #GOTOcon #GOTOchgohttps://gotochgo.comHolden Karau - Co-Founder at Fight Health Insurance @HoldenKarau R...
youtu.be
July 2, 2025 at 12:03 PM
From bar napkin to production: @holdenkarau.com built AI to help appeal health insurance denials. Real ML deployment talk - privacy, middleware, & questionable frontend code!
Reposted by Holden Karau
I'll be in Seattle for worldcon! Together with @holdenkarau.com Always game for raising money for trans folk!
And I'd love to get my edition of Silk Threads signed by you, that i bought from Laura Antoniou at worldcon 2019 ❤️
And I'd love to get my edition of Silk Threads signed by you, that i bought from Laura Antoniou at worldcon 2019 ❤️
May 9, 2025 at 10:56 PM
I'll be in Seattle for worldcon! Together with @holdenkarau.com Always game for raising money for trans folk!
And I'd love to get my edition of Silk Threads signed by you, that i bought from Laura Antoniou at worldcon 2019 ❤️
And I'd love to get my edition of Silk Threads signed by you, that i bought from Laura Antoniou at worldcon 2019 ❤️
Check out the @fighthinsurance team with our puppets being silly downtown while talking about the serious matter of insurance denials — www.instagram.com/reel/DJUY96h...
Login • Instagram
Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.
www.instagram.com
May 6, 2025 at 8:15 PM
Check out the @fighthinsurance team with our puppets being silly downtown while talking about the serious matter of insurance denials — www.instagram.com/reel/DJUY96h...
Reposted by Holden Karau
Really excited for @holdenkarau.com 's fighthealthinsurance.com as someone who's done my fair share of fighting health insurance. This is seriously one of the better applications of LLMs
Fight Your Health Insurance Denial -- Use AI to Generate Your Health Insurance Appeal
Fight Health Insurance is a generative AI tool to help you fight your health insurance denial. Just take a picture of your denial and it will generate an appeal for you to submit as the first part of ...
fighthealthinsurance.com
May 1, 2025 at 5:03 PM
Really excited for @holdenkarau.com 's fighthealthinsurance.com as someone who's done my fair share of fighting health insurance. This is seriously one of the better applications of LLMs
Come and join me this morning talking about @fightpaperwork.bsky.social & Fight Health Insurance -- youtube.com/live/ZtSVVF0... :D
Fighting Health Insurance Denials Using AI with Holden Karau
YouTube video by superdatabrothers
youtube.com
May 1, 2025 at 4:02 PM
Come and join me this morning talking about @fightpaperwork.bsky.social & Fight Health Insurance -- youtube.com/live/ZtSVVF0... :D
Stoked to see our work at @fightpaperwork.bsky.social covered in A.I. Wars: How healthcare uses artificial intelligence against you youtu.be/J-WEh1A-IXU?...
A.I. Wars: How healthcare uses artificial intelligence against you
YouTube video by The News Movement
youtu.be
April 18, 2025 at 5:24 PM
Stoked to see our work at @fightpaperwork.bsky.social covered in A.I. Wars: How healthcare uses artificial intelligence against you youtu.be/J-WEh1A-IXU?...
🌊 We’re launching Fight Paperwork
(AI appeal-writing for providers who are done getting steamrolled by insurers)
After helping folks generate 3,000+ appeals through Fight Health Insurance professionals asked: "Can I use this?"
And now they can use fightpaperwork.com to get paid for their work :D
(AI appeal-writing for providers who are done getting steamrolled by insurers)
After helping folks generate 3,000+ appeals through Fight Health Insurance professionals asked: "Can I use this?"
And now they can use fightpaperwork.com to get paid for their work :D
Fight Your Health Insurance Denial - Use AI to Generate Your Health Insurance Appeal | Fight Paperwork
Fight Health Insurance is a generative AI tool to help you fight your health insurance denial. Just take a picture of your denial and it will generate an appeal for you to submit as the first part of ...
fightpaperwork.com
April 17, 2025 at 7:11 PM
🌊 We’re launching Fight Paperwork
(AI appeal-writing for providers who are done getting steamrolled by insurers)
After helping folks generate 3,000+ appeals through Fight Health Insurance professionals asked: "Can I use this?"
And now they can use fightpaperwork.com to get paid for their work :D
(AI appeal-writing for providers who are done getting steamrolled by insurers)
After helping folks generate 3,000+ appeals through Fight Health Insurance professionals asked: "Can I use this?"
And now they can use fightpaperwork.com to get paid for their work :D
Getting ready for the pro-launch: "Can you pull the farts out of that log statement?" "That says fast, but I understand why you think it would say farts." #businesslife #fighthealthinsurance fightpaperwork.bsky.social @fhinsurance.bsky.social :D
fightpaperwork.bsky.social
fightpaperwork.bsky.social
April 17, 2025 at 12:49 AM
Getting ready for the pro-launch: "Can you pull the farts out of that log statement?" "That says fast, but I understand why you think it would say farts." #businesslife #fighthealthinsurance fightpaperwork.bsky.social @fhinsurance.bsky.social :D
Want to keep on top of everything happening with
@fhinsurance.bsky.social
and our upcoming launch of Fight Paperwork? Follow us: youtube.com/@fightpaperw... , youtube.com/@fighthealth... , linkedin.com/company/figh... , instagram.com/fighthealthi... , instagram.com/fightpaperwo... :D
@fhinsurance.bsky.social
and our upcoming launch of Fight Paperwork? Follow us: youtube.com/@fightpaperw... , youtube.com/@fighthealth... , linkedin.com/company/figh... , instagram.com/fighthealthi... , instagram.com/fightpaperwo... :D
Fight Paperwork
Health insurance is complicated. We simplify the appeal process so denied claims don't stand between you and providing care.
youtube.com
April 8, 2025 at 5:28 AM
Want to keep on top of everything happening with
@fhinsurance.bsky.social
and our upcoming launch of Fight Paperwork? Follow us: youtube.com/@fightpaperw... , youtube.com/@fighthealth... , linkedin.com/company/figh... , instagram.com/fighthealthi... , instagram.com/fightpaperwo... :D
@fhinsurance.bsky.social
and our upcoming launch of Fight Paperwork? Follow us: youtube.com/@fightpaperw... , youtube.com/@fighthealth... , linkedin.com/company/figh... , instagram.com/fighthealthi... , instagram.com/fightpaperwo... :D
Anyone have contacts at Google AdWords for some credits? Google analytics keeps trying to upsell me with fake credits enough that I want to try but like… not without some credits. #cheapstartuplife
April 2, 2025 at 10:09 PM
Anyone have contacts at Google AdWords for some credits? Google analytics keeps trying to upsell me with fake credits enough that I want to try but like… not without some credits. #cheapstartuplife
Reposted by Holden Karau
Hello! I'm Els and I have several websites that really need a proper (wordpress?) backend, but I have no time to set it up. I'm a queer data nerd, who also teaches about kink and polyamory, so you should be comfy with that kind of content. I prefer to hire a fellow queer, and this is a paid job.
March 21, 2025 at 10:29 AM
Hello! I'm Els and I have several websites that really need a proper (wordpress?) backend, but I have no time to set it up. I'm a queer data nerd, who also teaches about kink and polyamory, so you should be comfy with that kind of content. I prefer to hire a fellow queer, and this is a paid job.
There's something magical about the first users you have not talked to yet using your product :D If you're a healthcare professional and want to get on the wait list to use AI to fight health insurance denials (and soon prior auths and more) you can get on the waitlist at www.fightpaperwork.com :D
Fight Your Health Insurance Denial - Use AI to Generate Your Health Insurance Appeal | Fight Paperwork
Fight Health Insurance is a generative AI tool to help you fight your health insurance denial. Just take a picture of your denial and it will generate an appeal for you to submit as the first part of ...
www.fightpaperwork.com
March 21, 2025 at 6:32 PM
There's something magical about the first users you have not talked to yet using your product :D If you're a healthcare professional and want to get on the wait list to use AI to fight health insurance denials (and soon prior auths and more) you can get on the waitlist at www.fightpaperwork.com :D
Anyone have experience with getting cypress to work with self signed SSL certs?
March 20, 2025 at 6:26 PM
Anyone have experience with getting cypress to work with self signed SSL certs?
At Fight Health Insurance, we’re on a mission to empower professionals and patients to fight back against unfair insurance denials. As we prepare to launch our professional version, Fight Paperwork, we'd love your input on this survey:
us20.list-manage.com/survey?u=d98...
us20.list-manage.com/survey?u=d98...
Mailchimp Survey
us20.list-manage.com
February 26, 2025 at 6:06 PM
At Fight Health Insurance, we’re on a mission to empower professionals and patients to fight back against unfair insurance denials. As we prepare to launch our professional version, Fight Paperwork, we'd love your input on this survey:
us20.list-manage.com/survey?u=d98...
us20.list-manage.com/survey?u=d98...
Would folks be interested in a book entitled "How to do corporate taxes and other things I don't want to do -- a definitely not legal guide for startup founders" ? :p (and or do you know of one?)
February 25, 2025 at 11:17 PM
Would folks be interested in a book entitled "How to do corporate taxes and other things I don't want to do -- a definitely not legal guide for startup founders" ? :p (and or do you know of one?)