HNHacker News
TopNewBestAskShowJobs

JeremyTheo

689 karma · joined September 18, 2021

Co-Founder & CTO @ UMH (www.umh.app)

meet.hn/city/de-Cologne

Socials: - linkedin.com/in/jeremy-theocharis - github.com/Jeremytheocharis - x.com/Jmtheocharis

---

submissionscomments
JeremyTheo··on Sam Altman addresses AI doomsday fears in new interview
What I find interesting in here is that he says that OpenAIs IPO will not take place 2026
JeremyTheo··on Ask HN: Who is hiring? (September 2026)
Cologne, Germany | UMH | Product Engineer | Full-time | 55 - 85k EUR | ONSITE (part remote)

Hi, Alex and Jeremy here from UMH.

8 years ago, Jeremy was absolutely frustrated with the status quo of data infrastructure in manufacturing. Companies paid millions per year for "shitty 90s software" and are still doing that today, when there is much better software out there for open-source. So we decided that we can do this better, first founded a System Integrator, realized most of the tasks in setting up and maintaining a data infrastructure can be standardized, and decided to found the currently VC-backed UMH, which is built on open source software and is open source itself.

What we're actually building: We build and scale a real-time data platform that runs hundreds of Benthos pipelines inside a single Docker container (UMH Core), processing millions of industrial messages that control actual production processes.

Plus a local-first user interface (Management Console) where both non-technical factory workers and power-users/developers can work together. And yes, we care about UI in enterprise/industrial software.

https://www.umh.app/careers/product-engineer-f-m-d-55-85k-eu...

JeremyTheo··on Ask HN: Who is hiring? (August 2026)
Cologne, Germany | UMH | Product Engineer | Full-time | 55 - 85k EUR | ONSITE (part remote)

Hi, Alex and Jeremy here from UMH.

8 years ago, Jeremy was absolutely frustrated with the status quo of data infrastructure in manufacturing. Companies paid millions per year for "shitty 90s software" and are still doing that today, when there is much better software out there for open-source. So we decided that we can do this better, first founded a System Integrator, realized most of the tasks in setting up and maintaining a data infrastructure can be standardized, and decided to found the currently VC-backed UMH, which is built on open source software and is open source itself.

What we're actually building: We build and scale a real-time data platform that runs hundreds of Benthos pipelines inside a single Docker container (UMH Core), processing millions of industrial messages that control actual production processes.

Plus a local-first user interface (Management Console) where both non-technical factory workers and power-users/developers can work together. And yes, we care about UI in enterprise/industrial software.

https://www.umh.app/careers/product-engineer-f-m-d-55-85k-eu...

JeremyTheo··on We should get rid of average CPU utilization
There is also the concern that a single pod shouldn’t be able to take down an entire node. So there needs to be some safety levels. But then also not. I find this is a really complex issue which is not widely known (only in Kubernetes bubble)
JeremyTheo··on We should get rid of average CPU utilization
Yes!
JeremyTheo··on We should get rid of average CPU utilization
Yeah, that is mainly the point there. But difficult if company internal policies require it (for security, etc)
JeremyTheo··on Ask HN: Who is hiring? (May 2026)
Cologne, Germany | UMH | Product Engineer | Full-time | 55 - 85k EUR | ONSITE (part remote)

Hi, Alex and Jeremy here from UMH.

8 years ago, Jeremy was absolutely frustrated with the status quo of data infrastructure in manufacturing. Companies paid millions per year for "shitty 90s software" and are still doing that today, when there is much better software out there for open-source. So we decided that we can do this better, first founded a System Integrator, realized most of the tasks in setting up and maintaining a data infrastructure can be standardized, and decided to found the currently VC-backed UMH, which is built on open source software and is open source itself.

What we're actually building: We build and scale a real-time data platform that runs hundreds of Benthos pipelines inside a single Docker container (UMH Core), processing millions of industrial messages that control actual production processes.

Plus a local-first user interface (Management Console) where both non-technical factory workers and power-users/developers can work together. And yes, we care about UI in enterprise/industrial software.

https://www.umh.app/careers/product-engineer-f-m-d-55-85k-eu...

JeremyTheo··on Ask HN: Who is hiring? (April 2026)
Cologne, Germany | UMH | Product Engineer | Full-time | 55 - 85k EUR | ONSITE (part remote)

Hi, Alex and Jeremy here from UMH.

8 years ago, Jeremy was absolutely frustrated with the status quo of data infrastructure in manufacturing. Companies paid millions per year for "shitty 90s software" and are still doing that today, when there is much better software out there for open-source. So we decided that we can do this better, first founded a System Integrator, realized most of the tasks in setting up and maintaining a data infrastructure can be standardized, and decided to found the currently VC-backed UMH, which is built on open source software and is open source itself.

What we're actually building: We build and scale a real-time data platform that runs hundreds of Benthos pipelines inside a single Docker container (UMH Core), processing millions of industrial messages that control actual production processes.

Plus a local-first user interface (Management Console) where both non-technical factory workers and power-users/developers can work together. And yes, we care about UI in enterprise/industrial software.

https://jobs.umh.app/

JeremyTheo··on Kidnapped by Deutsche Bahn
Yes it is! And yes it was a typo! Thank you for finding the link to it. I was trying to find it before but couldn’t find it in official sources, DB deleted it from the official app. It did not stop at Troisdorf though.

It is operated by National Express, but I guess the routing comes from some other company (likely InfraGo)

JeremyTheo··on Kidnapped by Deutsche Bahn
Kicked Off = we have to stop for some technical reasons that are further unspecified, and everyone has to leave the train because we are driving now in the opposite direction. a replacement bus is coming. Once every hour. With a capacity of 8 people. In some cow village 50km far away from the next city. With no cab service available. Thats was what i meant

What facts are missing in your opinion?

JeremyTheo··on Kidnapped by Deutsche Bahn
I know how sketchy it sounds, and it was even documented in DB Navigator. But DB makes this information inaccessible a couple of days later in the app, so there is no way to „proof“ it except asking DB itself.
JeremyTheo··on IG Nobel Prize Winners 2025
Me too! That’s why I found it so exciting to find it as IG Nobel Prize Winnder!
JeremyTheo··on IG Nobel Prize Winners 2025
The cacio e pepe paper posted here a couple of months ago won it in the category of physics: https://pubs.aip.org/aip/pof/article/37/4/044122/3345324/Pha...
JeremyTheo··on Show HN: I've been building an ERP for manufacturing for the last 3 years
Hey guys, Jeremy from UMH (www.umh.app) here. We are OSS as well and focus on data infrastructure for manufacturing. Let me write you guys via Discord to get in contact
JeremyTheo··on AWS and Azure Are at Least 4x–10x More Expensive Than Hetzner
Agreed! See also the ahrefs example
JeremyTheo··on AWS and Azure Are at Least 4x–10x More Expensive Than Hetzner
The article was originally intended at manufacturing companies, not at IT startups, that currently go "all-in" on AWS and Azure with all of their managed services, when actually 95% of their workloads are in virtual machines, and the remaining stuff could easily be handled on a single VM. Or maybe a couple of VMs and a managed postgres somewhere (e.g., maybe even at AWS or Azure).

Would probably give them way more budget in actually building applications than running the infrastructure.

Maybe I'll extend the article to include the point of using a managed postgres at AWS / Azure / fly.io, whatever, in combination with Hetzner VMs.

JeremyTheo··on AWS and Azure Are at Least 4x–10x More Expensive Than Hetzner
Hetzner does start at a much lower price point, and has servers also in Singapore and US (but only since a couple of months)
JeremyTheo··on Ask HN: What resources to learn tech and software in manufacturing?
Check out https://learn.umh.app

We have a lot of free info material on the topic of IT and Industrial Automation including Shopfloor KPIs like OEE. And the project behind it, is even open source.

Disclaimer: I am the CTO

JeremyTheo··on Comparing MQTT Brokers for the Industrial IoT
feel free to write me on LinkedIn (Jeremy Theocharis) or join our Discord channel: https://discord.gg/UMRRUJ3aGj
JeremyTheo··on Comparing MQTT Brokers for the Industrial IoT
Maybe this is not relevant for all industries, but in our experience in manufacturing it is for most companies an immediate no-go. Because these companies are not interested in using the open-source variant, they want to partner up with the company behind it. And in the case of EMQ, this is additionally quite difficult to pinpoint with whom one will be conducting business with.
JeremyTheo··on CIA Travel Tips
"The page you requested doesn’t exist."
JeremyTheo··on Show HN: My proposal for a new keyboard layout
I wanted to post the same. I am German and I am using it for my daily tasks. It combines the easy to program US layout with easy access to German Umlauts Ä, Ö, Ü, ß.

Highly recommended. No idea though for any other languages other than German.

JeremyTheo··on Node-RED: How an open-source tool is establishing itself in Industrial IoT
Very interesting idea! Thank you!

I would not move it between Node-RED and the PLC but I see other applications of a data diode. We usually create a very small DMZ around each machine and a data diode can additionally protect it (see also a very old article from us: https://docs.umh.app/docs/getting-started/usage-in-productio... ) You could place the data diode as a "firewall" between the internet and the edge PC.

JeremyTheo··on Node-RED: How an open-source tool is establishing itself in Industrial IoT
Fully agreed!

Being a programer I really dislike using Node-RED for complicated calculations as you land up pretty quick into the limitations of "low-code" like version control (some is available in Node-RED but not that good), documentation, other best-practices.

However, for smaller stuff or connecting APIs this is absolutely great as it saves a lot of time around boilerplate stuff like package management, setting up a repo or Docker. We only do this smaller stuff also known as "customer specific configuration" and let our proper programs handle the rest.

Main target group is, like you said similarly, mechanical or industrial engineers with very limited IT knowledge, but still huge process expertise.