Jimmy Zelinskie

@jimmy.zelinskie.com

2722 Followers 256 Following

Cofounded @authzed.com. Exited Red Hat, CoreOS. I build distributed systems, databases, authorization systems, containers, and businesses. NYC transplant in SF.

A screenshot of a macOS dock with 3 icons: activity monitor, ghostty, and brave. The ghostty icon has a darker gray terminal and pink ghost rather than the typical dark blue terminal and light blue ghost.
sign from GitHub Universe pointing down a hallway with the text "null()"
Badge for GitHub Universe 2025. Raspberry Pi attached with a display showing off GitHub avatars, followers, contributions, and repos.
Photo of 100 Davie St with the red fedora logo on the wall
A collection of glass pumpkins in front of a tree each a shade of orange with a green stem.
bernie sanders meme with the text: I AM ONCE AGAIN AKSING YOU TO LEARN `EVAL $(CMD)` PREVENTS THE SHELL FROM ACTUALLY CACHING THE COMPLETION
Spotify settings displaying lossless streaming quality selected
A church pew with seat pads containing the EFF and Linux logos
A knit elephant with yarn made of blues, purples, and pinks.
A card with the GNU General Public License
Switch 2 box
Sinners movie ticket with the following text: Mat $7.50 Auditorium and Grand Lake
Photo of the back of seat display and ports below it. Two 3.5mm jacks, USBC, and standard usb ports
Kelsey Hightower at the AuthZed booth signing a copy of the Zanzibar annotated edition containing his forward.
Photo of myself Sohan Julian and Jess in front of the authzed booth N632
Myself standing in front of a booth backdrop labeled GitHub! I'm in a tie dyed authzed shirt with a denim jacket.
A screenshot of the PagerDuty UI showing the current On-Call schedule. Level 1 is showing the current week scheduled to Jimmy Zelinskie. Level 2 is circled and shows that Jimmy Zelinskie is "on-call all the time".
a screenshot of a terminal with the following rust code: use std::{ pin::Pin, task::{Context, Poll}, }; use futures::{Stream, StreamExt}; use tonic::{Status, Streaming}; pub struct ResponseStream<T> { pub stream: Streaming<T>, } impl<T> Stream for ResponseStream<T> { type Item = Result<T, Status>; fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> { self.stream.poll_next_unpin(cx) } }
My laptop stickers from top right to bottom left: authzed logo, Andytown coffee raccoon eating trash, Lao gan ma jar, a cat dressed as a ghost flying through the air, a tooth, a raccoon holding a freshly picked mushroom over their shoulder, and a purple and pink flower with a rabbit face in the center drawn by killeracid
Myself standing at a podium with the gRPC logo on it. I'm wearing a multi-colored flannel shirt over my authzed tie-dye shirt for the ultimate clashing outfit. It was cold.
A photo of me on one knee smiling for the camera from inside a transparent box overhanging from the Willis Tower with a view of the city of Chicago at sunset.
The cliffs of Zion National Park at sunset with the moon just above.
Expanding the Capabilities of Kubernetes Access Control with Jimmy Zelinskie and Lucas Kaldstrom.
Map of the KubeCon SLC venue
Sunset at Sunset Point in Bryce Canyon National Park. The sky is shades of blue, pink, and purple behind hoodoos structures of rock.
A semi truck towing the same model of truck which is towing the same model of truck.
A screenshot of a terminal displaying the output of the command "curl cheat.sh/latencies". The organizes various operations such as "L1 cache reference" with visual representations of time so that folks can intuit their relative costs.
Jesse Eisenberg and Kieran Culkin answering questions in front of a theatre screen
screenshot of my GitHub profile with the original Bluesky URL
Ice cream next to a sticker that says "I voted early 2024"
Cat newspaper meme with the text "I should try jj"
Screenshot of a Google Alerts email containing my skeet introducing the databases starter pack
Screenshot of iOS battery usage showing Bluesky notifications at 38%
A virtual certificate with text "Celebrating 10M users on Bluesky, #32,865, Jimmy Zelinskie ‪@jimmy.zelinskie.com‬, joined on Apr 23, 2023"
Bottle of Haeyo Mayo, a hair care product with mayonnaise packaging
zoom in of the previous photo circling a screen in the background with the conference schedule showing my talk
a golden retriever esque dog made of balloons with a bandana that reads gRPC
The view out the window of my return flight showing Chicago at night with my planes turbine featured in the corner.
Sonic Sphere at The Shed