New research from Uber Engineering 🔬

How do you keep AI agents focused on what they’re actually designed to do and block malicious attacks that attempt to manipulate agents into doing things they weren’t designed to do?

Our researchers explore exactly that with Persona -grade defense framework for agentic systems.

Congrats to the team behind the work! 👏

Read the paper: arxiv.org/abs/2610.03434

Discover the core principles behind Uber's Payments Platform—designed 10 years ago and still powering a business with $217B in annualized gross bookings.

🔗uber.com/us/en/blog/ube…

How many unique users did Uber serve this quarter?

For mission-critical metrics, approximate wasn’t enough. We built a chunked aggregation buffer strategy for exact distinct counts at scale, cutting backfill time by 65% on average.

Read more: uber.com/us/en/blog/sca…

Across our global sites, engineers and scientists led workshops, talks, and poster sessions on how they’re applying agentic AI to solve real-world challenges, improve the software development lifecycle, and build better tools for developers. 👏 Shoutout to our incredible team!

This week, the team held its annual Engineering & Science day! We welcomed @bcherny to discuss AI-assisted engineering. @praveenTweets also hosted Uber alumni-turned-founders @SamarAtTemporal, @martin_c_mao, @byte_array, whose time at Uber shaped their next ventures.

Congrats to Uber engineers Gaurav Goel and Sanjeev Suresh on being named Agentic AI Foundation ambassadors!

Their appointments reflect Uber’s commitment to building world-class tech and contributing to the broader developer community.

#UberEngineering #AgenticAI

A look back at @aiDotEngineer World's Fair! 👋

From end-to-end agentic SDLC to AI-powered code review and production evals, the Uber Engineering team presented a taste of what we're building. Follow along for what's next.

Join Uber Engineering at @aiDotEngineer World's Fair! Hear insights directly from the engineering teams applying AI across the software development lifecycle.

See full session details: ai.engineer/worldsfair/sch…

Are you at #CVPR2026? 🗻Drop by the @Uber AV Labs booth (#647) to learn more about our work accelerating the AV ecosystem.

Learn more about our AV Labs team here: uber.com/global/en/av-l…

Last week, Uber Engineering hosted a Seattle Systems meetup. We explored topics like analyzing code merge safety at scale and discussed the physical limits of the internet.🌟

It was great to see Seattle's vibrant systems engineering community in action! 🙌

#UberEngineering

It was a big week for Uber Engineering at hashtag #ICSE2026. Read the award-winning research and learn how we’re scaling our testing infrastructure below.

AutoCover: Scaling Test Coverage: conf.researchr.org/details/icse-2…

AI-Driven Mobile Chaos Engineering: arxiv.org/pdf/2602.06223

Staying on top of code reviews and CI/CD updates shouldn't feel like a full-time job in itself.

Check out this recording from @tsmith and Anshu Chadha from Uber's Developer Platform team on how we're tackling toil with Uber's Agentic Shift:

youtube.com/watch?v=i1tZN4…

🚲 Join Uber Engineering at @KubeCon_ + CloudNativeCon EU 2026! 🚗

We're excited to be a part of the cloud-native conversation at KubeCon EU 2026! We're presenting our latest work on how Uber's compute platform powers over 1M+ diverse workloads and the key role that Michelangelo eams to seamlessly build, deploy, and operate machine learning solutions. We can't wait to connect with the community!

❓ Want to know more about how Uber is leveraging Kubernetes at scale, what's next for our open source projects, or interested in where a career at Uber might take you? Visit us at Booth 221 to chat!

🎫 Register for your ticket today: events.linuxfoundation.org/kubecon-cloudn…

#UberEngineering #KubeCon #CloudNativeCon #OSS #OpenSource

🚀 AI-thon is in full swing @Uber! 🤖✨

Tech teams across Uber are bringing imaginative ideas to life in our internal hackathon and expanding what’s possible with AI. Teams around the globe are heads down building, with submissions coming in just a few hours!

And of course, or some fun: happy hours, fireside chats, swag, prizes, and time to meet new colleagues! 💡🌍

Uber’s employee ‘AI-Thon’ kicks off today! 🚀

This week, tech teams from across the company will prototype bold ideas, expand what’s possible with AI, and build hackathon projects together. We can’t wait to see what emerges from a week of curiosity, creativity, and collaboration. 💡

Excited to share this great conversation between @Uber and the team at DS, diving deep into the results of Uber’s Developer Productivity Survey.

🎥 Watch the full webinar here: youtube.com/watch?v=KLEhBf…

#DeveloperExperience #EngineeringProductivity #DevEx #UberEng

Relive the magic of NYE! Check out our highlights of how @Uber played a part in global celebrations. 🌍🚗🎉 #UberNYE #UberEng uber.com/eng/motion

At Uber, we serve 500 million Pinot queries every day. Learn how we optimized and built an internal fork of Presto to support query features like window functions and sub-queries, all while supporting sub-second latencies at thousands of QPS.

read more: uber.com/blog/serving-m… rEng

Exploring beyond third-party LLMs, @Uber leverages in-house LLM training to embed domain-specific knowledge and support GenAI applications. Embracing open-source solutions unlocks top-tier training throughput and GPU utilization.

read more: uber.com/blog/open-sour…

Relive the magic of NYE! Check out our highlights of how Uber played a part in global celebrations at uber.com/eng/motion 🌍🚗🎉 #UberNYE

From Sydney to San Francisco, tune in to get a glimpse of how the world celebrates New Year’s Eve with @Uber ! 🌏🚗🎆#UberNYE uber.com/eng/motion

The countdown begins! In 2 days, watch the world move with @Uber as we ring in the New Year from every corner of the globe. 🌍🚗 #UberNYE uber.com/eng/motion

Join us tomorrow at 12 PM PT for an exciting Meetup about Apache Hudi! There will be speakers from Uber, Moveworks, and Philips!

RSVP:meetup.com/UberEvents/eve…

#apache #apachehudi #opensource #opensourcesoftware @Uber @moveworks @Philips

New blog! Introducing Carbon Feed for Earners: Carbon Feed provides personalized, relevant information to earners by utilizing machine learning in concert with our content aggregation backend.

read more: eng.uber.com/introducing-ca……

#MachineLearning #Engineering

Ever wonder how our Uber Engineering team scales the platform for millions of concurrent rides & billions of trips per month?

Learn more about Uber's migration to Cloud Spanner by checking out this interview!

youtube.com/watch?v=DY2AR8…

And #TheNextClass winners are...

If you didn’t receive the sponsorship, you can still join the Ada Build Live Series every Wednesday, from 5:30 PM - 7:30 PM PST!

The Ada Developers Academy program is tuition-free and Cohort 18 applications open March 7th! #AdaxUber

Join us on January 11th at 12 PM PST for an exciting virtual Meetup about Apache Hudi! You won't want to miss this!

Event Info Here:
meetup.com/UberEvents/eve…

Check out our new blog featuring Anwaya Aras! #UberEng

uber.com/blog/anwaya-ar…

Check out our new Engineering at Uber video! #LifeatUber #UberEng

youtube.com/watch?v=RjgfHD…

Check out our new Life at Uber video! #lifeatUber

youtube.com/watch?v=h4CBJg…

Join our Brazil Eng team on Thursday, September 16th at 2:30 PM PDT for a Meetup about Cadence, an orchestration engine used in several Uber products, such as Uber Eats! The event will be hosted in Portuguese by Piera Marchesini Erich Menezes.

RSVP here: meetup.com/Uber-tech-talk…

Hear Maya Pavlova, a current Software Engineering Intern, share her interview experience and explore available opportunities for University students → uber.com/careers/teams/…

We are so honor to received the Philanthropy Award at @devmissionorg 3rd Youth Benefit! 🎉🎉🎉
@UberEng and @UberOpenSource super excited to continue our collaboration next year with @devmissionorg!

New on our blog today! Uber built and open sourced Fiber, distributed computing library. To enable users to implement large-scale distributed computation for machine learning applications easily on a computer cluster #AI #MachineLearning #opensource

eng.uber.com/fiberdistribut…

Uber Eng Sofia is happy to be co-hosting a virtual meetup with @WomenWhoCode on May 13 with Busi Sizani, People Development Business Partner at Uber, on authenticity
and inclusion. For more details and agenda: meetup.com/Women-Who-Code…

Designed by @Uber's Office of the CTO, the Engineering Sponsorship and Development Program pairs participants with sponsors and provides an opportunity to hone technical leadership skills.
ubere.ng/33eKmH6
#Mentorship #DiversityInclusion #EngineeringLeadership

Uber Boulder had the pleasure of hosting Claudia Folska Ph.D. for an engaging talk about her work and how the @Uber app functions for visually impaired customers to the similarities between how visually impaired people and autonomous vehicles interact with the built world.

New on our blog today: Rick Boone, Strategic Advisor for @Uber's Core Infrastructure group, talks about his journey from his work in site reliability to his current role in long-term planning for infrastructure health and scalability.
ubere.ng/384QgLZ
#Infrastructure #SRE

As part of @Uber Visualization's all-team hackathon, we built SpeedsUp, a project using machine learning to process average speeds across a city, cluster the results, and overlay them on a street map.
ubere.ng/36koA5A

New on our blog today: We built a backtesting service to better assess financial forecast model error rates, facilitating improved forecast performance and decision making.
ubere.ng/2OOadzW

New on the blog today: We implemented a Kappa architecture at @Uber to effectively backfill streaming data at scale, ensuring accurate data in our platform.
ubere.ng/2RLt0wi

New on the @UberEng blog today: We engineered full SQL support on Apache Pinot to enable quick analysis and reporting on aggregated data, leading to improved experiences on our platform.
ubere.ng/36SlO88

New on the blog today: Today we are excited to announce that we have released our visual ML debugging tool Manifold as an open source project. ubere.ng/2QsJDxm

New on our blog: @Uber will present 11 papers on probabilistic modeling, Bayesian optimization, AI neuroscience, and neural network modeling at @NeurIPSConf 2019 in Vancouver, as well as sponsoring workshops like Women in Machine Learning and Black in AI. ubere.ng/2r1VpFf

New on our blog today: RxCentral is a set of libraries for Android (open source) and iOS (soon to be open source) to communicate with Bluetooth LE peripherals in a reliable, repeatable fashion via a platform-agnostic, reactive design.
ubere.ng/37UnyhU

Applications are now open for the 2020 Uber AI Residency! Uber AI Residents will be chosen across San Francisco and Toronto. This year's program will focus on our self-driving cars project through Uber ATG.
For details and how to apply: ubere.ng/2DlLFrW

@SamsungNext Check out this video for more information: youtu.be/737PKW1Rt_g

New on the blog today: Meet a few of the engineers from our Boulder, Colorado office, who work on everything from maps to new mobility to large scale distributed systems. ubere.ng/2XxMZ4j