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Union.ai

Software Development

The AI development platform to go from experimentation to production faster. Orchestrate, train, and serve AI.

Is Union.ai hiring?

As of November 2, 2026, Union.ai has no open roles in the job sources Metaintro tracks.

Customers

All 16 companies Union.ai names as customers.

Customers hiring now9

Case studies7

  • LGND
  • ArteraAI
  • Prima Mente
  • Rezo
  • Delve Bio
  • MethaneSAT
  • Kineo

What their customers say

Quotes from people at Union.ai's customers.

“Definitely easier to scale than Ray, since you have a lot more granular control over streaming the parallelism. The parallel async model is nice to work with.”

Patrick SurryChief Data Scientist · Hopper

“Initially it was something like four minutes, because we were pulling every layer. Now if I look at the logs, it's always under one second. We never have any issue with cold starts.”

“Rather than dealing with eight new AWS users and all the permissions, we just set up intern projects… Using Union for compute helps a ton because we're not setting up individual EC2 instances for each one of them.”

Jeff AlbrechtHead of Engineering · LGND

“Our inference runs exceed the scale limits of a standard EKS cluster. With Union, we can have a single run span multiple clusters while having that single run spawn thousands of GPUs and call hundreds of thousands of actions, all of which are cached durably.”

“We can scale to 200,000–300,000 pods with the escalation logic baked right in, and the out-of-memory and scheduling headaches I used to fight are simply gone.”

Show 25 more quotes

““The Union.ai team is responsive on Slack and open to brainstorming, getting guidance on how to use Flyte, taking feature requests, and conveying them to the engineering team. We haven't had to hire a DevOps engineer on the team. I've been able to lean on Union.ai to abstract out that problem and handle the infrastructure. If I have a request, they do it the right way. I don't have to worry about: Am I following security best practices? Am I going to overload my API server? Those kinds of things.””

Rezo

““We have been able to use Union.ai to configure local SSDs to download one and a half terabytes of data on the fly from GCS, store this on a local SSD, and run a batch operation. This allowed us to reduce the cost of doing MSAs from around $10,000 a month to hundreds of dollars .””

Rezo

““We’ve been able to save a factor of two or three by using this esoteric instance type at high scale with Union.ai. Scaling out to a thousand and hopefully soon even more of these 48 and 60 CPU instances and scaling dynamically.””

Rezo

““Union.ai gives us the fault tolerance we need to run our workflows on spot instances. We can configure the number of retries and fall back to on-demand if needed.””

Rezo

““We get significant cost efficiency from running biomolecular structural AI inference on TPUs. Having the ability to scale dynamically—to go from zero to 500 TPUs across four regions—is unique and highly valuable. We get that from Union.ai, and I don’t know who else could give us that.’”

Greg Friedland · Principal ML Engineer · Rezo

““We scaled from single-node experiments to 160 GPUs across 40 nodes without changing a line of workflow code. Union.ai handled the provisioning and our data volume with ease.””

Nate Appelson · Principal Engineer · LGND

““Support-wise it’s been nothing but excellent. Every request from our team gets addressed within a few hours.””

Jay Ganbat · Principal Bioinformatics Engineer · Prima Mente

““I waited too long to switch to Flyte 2 — it’s just so much better. We can scale to 200,000–300,000 pods with the escalation logic baked right in, and the out-of-memory and scheduling headaches I used to fight are simply gone.””

Jay Ganbat · Principal Bioinformatics Engineer · Prima Mente

““Union has become the backbone of our data processing. Almost all of our bioinformatics pipelines run on it now””

Jay Ganbat · Principal Bioinformatics Engineer · Prima Mente

“Union.ai support has proven to be critical for us at the time that we needed to significantly scale up our data processing needs to meet major milestones.”

Alborz Alavian · Senior Engineering Manager · Woven by Toyota

“My personal experience says there’s been at least 30% cost savings in efficiency.”

Frank Shen · Warner Bros. Discovery

“A couple of us are sufficient to support a whole bunch of data scientists because we actually develop reusable Flyte workflows.”

Frank Shen · Warner Bros. Discovery

“You can compose workflows; one workflow can call other workflows, and you can chain them together and reuse them.”

Frank Shen · ML Platform Engineer at Warner Bros. Discovery · Warner Bros. Discovery

““Union.ai is our dedicated ML platform; we're all in, for both training and production inference. Migrating to Flyte 2 has made inference cheaper and more predictable. When we had a hard deadline, essentially the entire Union team was online with us until the early hours of the morning. That's the kind of partner we want as we scale.””

Hariharan Ananthakrishnan · Principal Engineer, AI Platform · Artera

““Every single new model that comes out is being done on Flyte… They’re becoming more and more self-sufficient with every single release.””

Katrina Palen · Stash

““We want to make writing a workflow for people's jobs pleasant and straightforward… if it’s not simple and easy, people aren’t going to adopt the technology.””

Katrina Palen · ML Platform Engineer at Stash · Stash

“The ability to massively parallelise computations accelerates our development lifecycle. Researchers focus on the science rather than learning compute frameworks.”

Tom Newton · Software Engineer · Wayve

““We’re amazed at the level of support. Union engineers respond within minutes and dive directly into the issue—no other vendor comes close.””

Thomas Busath · Porch

““We want one platform for orchestrating all these jobs. Writing everything in a Union workflow means less to manage—it's awesome.””

Thomas Busath · Machine Learning Engineer · Porch

““We were able to save nine months of engineering time by avoiding any code changes and simply lifting and shifting our Airflow code and running it with Union.””

Shih-Gian Lee · Senior ML Engineer · Porch

““The learning curve’s not steep, but the yield curve is incredible.””

Brian O’Donovan · Delve Bio

““It’s important for us to have strong guarantees about inputs and outputs. It makes our predictions more reliable.””

Brian O’Donovan · Delve Bio

““I’m not gonna lie: Kubernetes is all nuance… Union takes a huge load off our engineering team. They don’t need to manage ephemeral storage or cluster details.””

Brian O'Donovan · PhD, Head of Bioinformatics · Delve Bio

““A fraction of the time, larger area… We’re really excited about the capabilities this project will enable us to do, and Flyte’s going to get us there.””

Nicholas LoFaso · MethaneSAT

““The community here is phenomenal… asking a million questions in Slack and getting answers from everybody. That’s been super helpful.””

MethaneSAT

AI launches and partners

What Union.ai has launched and who it works with on AI.

  • LaunchDurable AI runtimeUnion recovers a workload after a failure with no manual intervention.
  • LaunchFlyteUnion creates and maintains Flyte, an open-source AI runtime.
  • LaunchInference and training workflowsUnion.ai runs inference as part of end-to-end AI workflows connected to data processing and training.
  • LaunchGeospatial ML pipelinesUnion powers geospatial ML pipelines for earth observation, defense, and climate teams.

Skills they ask for

Most frequent across open postings.

Tech stack

Analytics
Google Analytics 4
CDN
Cloudflare
jsDelivr
Amazon CloudFront
cdnjs
Libraries
Swiper
jQuery
GSAP
CMS
HubSpot CMS
Marketing
HubSpot

Company facts

Industry
Software Development
Sector (NAICS)
Information
Peer
Google
Website
union.ai

Similar companies

Companies in the same industry as Union.ai that are hiring now.

Questions about Union.ai

Is Union.ai hiring?
As of November 2, 2026, Union.ai has no open roles in the job sources Metaintro tracks.
Who are Union.ai's customers?
Union.ai names 16 customers, including Warner Bros. Discovery, Wayve, Woven by Toyota, Porch, and Hopper.
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