eddietejeda

Extremely high concurrency at sub-second response times.

Here is our write up on the Ducklake blog: https://ducklake.select/2026/07/29/bringing-ducklake-to-data...

Thanks for the shoutout.

For context, we previously built custom catalogs optimized for specific use cases. But they were hard to maintain, especially as requirements changed, and Apache Iceberg was too heavy for our specific low-latency work.

Since Ducklake is only a spec, we implemented datafusion-ducklake, and it performs as well as any custom or specialized catalog we built. We use Postgres as the catalog store, and it does not get much simpler than that: a transactional database for transactional data.

Plus, it gives us a clear spec for implementing complex parts like time travel, snapshots, etc.

It's been a godsend.

We welcome and encourage contributors!

Mode | https://mode.com/careers/ | San Francisco, CA | Remote | Full time

Mode is a modern analytics and BI solution that combines SQL, Python, R and visual analysis to answer questions faster.

Used by Segment, Shopify, Twitch, Lyft, Doordash, NYTimes. Learn more about customers. https://mode.com/customers/

Open roles: - Senior Back-End Engineer - Experience with production engineering, mostly Java, some Go and Python - Senior DevOps Engineer - Terraform, Go, AWS ECS

Ping me if you have questions.

Slight correction: 18F does not require you to be in DC. They are 100% remote-first.

https://18f.gsa.gov/2015/10/15/best-practices-for-distribute...

Open positions: https://join.tts.gsa.gov/

Plastics are petrochemicals, meaning they’re made by combining fossil fuels (usually fracked gas) with chemicals. Petrochemical plants are among the most polluting industries in terms of harmful air and water pollution, and greenhouse gases. In the US, most petrochemical plants are clustered in a low-income, largely Black area of Louisiana known as “Cancer Alley.” So from fracking, to chemical production, to petrochemical manufacturing, people and the environment are harmed—that’s not even counting the end of the plastics lifecycle, like ocean pollution and incineration.

The concern:

https://www.scientificamerican.com/article/plastics-plants-a...

An insider view of industry:

https://www.mckinsey.com/industries/chemicals/our-insights/p...

My source: my wife is an environmental lawyer who is very concerned about climate change and works closely on these issues.

Nava is a public benefit corporation working to radically improve how government serves people. Formed as a team of designers and engineers in the effort to fix HealthCare.gov in 2013, Nava now works with Medicare and the Department of Veterans Affairs. With a strong research practice and a depth of experience scaling digital services, Nava helps more than sixty million people access critical government services. We’re thinkers and designers of civic technology.

More about the company: https://www.navapbc.com/services/

Open Roles:

- Infrastructure Engineer, Terraform (NYC, DC, SF, Remote) https://jobs.lever.co/nava/817283f6-9911-4f72-a5ef-fbcdd2c04...

- Software Engineer (NYC, DC, SF, Remote) https://jobs.lever.co/nava/c280510a-e3ed-4b6c-b64f-8ce82801d...

- Software Engineer, Lead (NYC, DC, SF, Remote) https://jobs.lever.co/nava/26679fe1-b47a-4e55-bd62-775b16be3...

More Roles: https://jobs.lever.co/nava/

Ping me if you have questions.

There are lots of issues with bitcoin, but the inherent value one is the least interesting.

Clearly, some people think there is value. That's it.

While mostly true, let’s put this into perspective: A GS-15 in a metro area like New York, DC, and San Francisco, with experience, can get over $170. Throw in performance bonus and matching contributions, and total compensation is $180k+. That does not compare with the high end of the private sector, but that’s reasonable for a lot of people, even at tech companies.

You can estimate here: https://www.federalpay.org/gs/calculator

Also, the sense of duty and serving the public is real. And this is not expressed in a tongue and cheek way... it’s an earnest desire to do meaningful work.

Many people who join USDS, 18F, and PIF from the tech industry are there because they genuinely want to do good work.

If you interested in seeing how the 3x3 initiative* has come along, here are the benchmarks so far: https://github.com/mame/optcarrot#readme

Personally, I am very excited for this release.

* Matz's goal to get Ruby 3 to be 3x faster than Ruby 2.

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@sosodev Thanks for the updated info!

I recently started using Sinatra for side projects and it’s an absolute pleasure. It’s simple and reliable. I think it should get a lot more recognition.

Ruby is changing. I doubt it will ever be as big as the Python world, but I can see it coming back into fashion. I’ve been paying attention to the community and it’s still very active.

If you are interested in this topic, checkout https://code.gov/

“The Federal Source Code Policy (FSCP) called for the establishment of the the Code.gov program office and corresponding technical platform of a website and application programming interface (API). The program office assists agencies with policy, acquisition, and code inventory creation. We are a small but mighty team with five members with expertise and beliefs pertaining to discovering, sharing, and open sourcing the People's code.”

You may also want to read up on 18f.gsa.gov. They publish and share lots of open source code.

I started at 18F and now run https://github.com/cloud-gov

Indeed. I recently re-decided to default to Ruby for side projects. If you don't need to squeeze the very last drop of performance, I can't think of a more comfortable language.

I have it as well. But I recently started to think about it differently.

I think the reason people dislike blockchain so much is because the promise that blockchain will do DoEverythingBetter™ is not very convincing.

All things considered, this industry is pretty small... but it's an industry. It's already been around a decade and could easily last for many more.

In that time, people who work in the blockchain space will bring those ideas, concepts, and ideologies to other industries.

When you think of it that way, looking under the surface for interesting ideas does not seem so far fetched. I think this post did a great job telling a story about the new and fascinating concepts.

Hi, I work on infrastructure in the federal government.

Here's my take: the title is unclear. The federal government has required https for a while.

Learn more here: https://https.cio.gov/

OMB wrote a memo requiring https in 2015: https://www.whitehouse.gov/sites/whitehouse.gov/files/omb/me...

If you see the "announcement" linked in the article, you'll notice that it's referencing this page: https://home.dotgov.gov/, which is about the HSTS preload list.

Good talk on the challenges of modifying gravity: https://youtu.be/iu7LDGhSi1A?t=1159

I’ve used TextMate 2 since it’s earliest beta release and always found it fast and reliable. If you want the speed of a native Mac OS X editor, in my opinion, nothing beats TextMate. Congrats to the developers for this major milestone.

Well, all the front-end code is precompiled and published to CDN. So at least from that perspective, there is continuously running server. Node would compile, publish, and cease to exist. The DB would have to be hosted elsewhere and made available via an API.

I don't like to use the term "static" site, even as a provider of a static site hosting service. I think when people say "static" they imagine a small site that does not change.

I prefer to see it as a build environment for your code, data, and assets. The data can change all the time, but it either changes as part of a build process or pulled from an external API.

Here's a good summary of a team choosing this approach for their data-heavy site: https://revenuedata.doi.gov/blog/homepage-revamp-part-two/

Although we are part of the government, we operate as a business unit that must pay for itself to exist. To do this, we have to charge other agencies for our services. My group is "cost-recoverable," meaning, that we are longer losing money and can reinvest back into the product. You will notice our Github activity picked up recently and even more significant changes are coming soon. So, I'd say we are in the best shape we've ever been.

USDS's requirement to be in DC is a tough ask, but necessary given the work they do. At 18F, we travel to DC a couple of times a year, but we are mostly remote. There are significant hubs in SF, NYC, DC, and CHI, but the remote culture is the most successful I've seen.

Yup. I run Federalist at 18F and absolutely love the work, the challenge and colleagues.

We do everything in the open, so feel free to follow our work here: https://github.com/18F/federalist

We also implement the USWDS, which you can follow here: https://github.com/18F/federalist-uswds-jekyll

Let me know if you have any questions!

Impressive. But, the one that loads first is always the real person. The teeth for generated faces often look weird.