MurphyA/hacker-news huggingface dataset:
by griffzhowl | 2025-11-03 17:43:45+00:00
A great resource that isn't mentioned often is the linear algebra chapters in Birkhoff and Mac Lane's Survey of Modern Algebra. Chapters 7,8,9, and 10 (in the 4th and 5th editions anyway) are a self-contained book-within-a-book of about 200 pages on both the computational and theoretical aspects of vector spaces, matrices, linear transformations, and determinants.

Many times I've been puzzled by a concept just to go there and find it made simple and obvious. It's a real golden nuggett... Plus if you then want to go further into groups, rings, fields, and Galois theory, that's also there.
by guywithahat | 2025-11-03 17:43:55+00:00
In mechanical engineering you can be an engineer or a mechanic, or other things (like a hobbies or different degrees of casual work), and they're no interchangeable.

I think being an engineer implies it's a profession you've trained in and you're implementing the science behind it in a practical manor in some capacity (like a computer scientist studies computers, a computer engineer implements and builds the systems based upon this science).
by threecheese | 2025-11-03 17:44:47+00:00
Perplexity’s Research tool has basically replaced Google for me, for any search where I don’t already know the answer or know that it’s available somewhere (like documentation).

I use it dozens of times per day, and typically follow up or ask refining questions within the thread if it’s not giving me what I need.

It typically takes between 10sec and 5 minutes, and mostly replicates my manual process - search, review results, another 1..N search passes, review, etc. Initially it rephrases/refines my query, then builds a plan, and this looks a lot like what I might do manually.
by JohnFen | 2025-11-03 17:44:55+00:00
Absolutely.

A comment about this, though:

> I'd rather have 0 insurance and just negotiate each bill as it came in with one single entity, the hospital.

That's not how it works, insurance or not. You won't get just one bill from a single entity, you'll get many bills from many different entities and will have to negotiate with each separately.
by dcrimp | 2025-11-03 17:45:03+00:00
Matta (https://matta.ai) | Industrial Computer Vision/AI for Manufacturing | UK – London (Old Street) | ONSITE | Full-time | Salary + Equity

We’re building industrial AI for factories – deploying into some of the messiest, noisiest, most fascinating real-world environments you can imagine. We build our own hardware, write our own software and train our own models. Our systems watch over manufacturing processes and flags issues real-time - missing parts, out-of-specification dimensions and nearly imperceptible visual defects. We work across manufacturing sectors - aerospace, defence, automotive, food + beverage, electronics, textiles, polymers and all the rest!

We're currently hiring for:

- Frontend Engineers Vue + TypeScript

- Backend Engineers Python (FastAPI, SQLAlchemy), Postgres, Celery, Redis/RabbitMQ, Docker/Compose

- AI Scientists & Vision Researchers Anomaly Detection, PyTorch/ONNX, dataset tooling, detection/segmentation/measurement, robustness/lighting/domain shift, GPU workflows

Forward-Deployed & Hardware Engineers Camera/lighting rigs and calibration, hardware integration, networking (PoE), deployment and field ops.

How to apply:

Email hello@matta.ai with your application.
by j1elo | 2025-11-03 17:45:03+00:00
> low-band 5G gives you 30–250

First and foremost, I agree with the meat of your comment.

But I wanted to point about your comment, that it DOES very much matter that apps meant to be transmitted over a remote connection are, indeed, as slim as possible.

You must be thinking about 5G on a city with good infrastructure, right?

I'm right now having a coffee on a road trip, with a 4G connection, and just loading this HN page took like 8~10 seconds. Imagine a bulky and bloated web app if I needed to quickly check a copy of my ID stored in NextCloud.

It's time we normalize testing network-bounded apps through low-bandwidth, high-latency network simulators.
by dmitrygr | 2025-11-03 17:45:04+00:00
Hm, not a bad idea. We could factor out the common part from all the electron apps. We'd ship it as a separate app, since it is common to them all. The remaining parts of all these apps would be pretty small, and to allow companies to update them easily, we could host them on servers and serve them dynamically as-needed over some sort of a protocol on top of IP, using the interconnectedness ("web") of most computers in the world.

I propose we call the common part a "web browser" since it works over the "web" and can walk this "web" in any direction it wishes ("browsing")

Since each application exists on a separate company's server (a location, or "a site") we could call each one "a web site"

I'll put together an RFC for comments but I also welcome them here.
by azdv | 2025-11-03 17:45:08+00:00
Location: Toronto

Remote: Yes

Willing to relocate: No thanks

Technologies:

* Cloud & Infrastructure: AWS/Azure/GCP, Terraform, Kubernetes, GPU infrastructure

* AI/ML: PyTorch, OpenAI/Anthropic APIs, Vector DBs (Pinecone), GraphDB, Neo4j, MLOps, distributed training

* FinTech: Banking APIs, payment processing, cryptocurrency exchange integration

* Core: Go, Python, Node.js, Rust

* Architecture: Microservices, event-driven systems, high-frequency trading platforms

Recent achievements:

* Led FinTech transformations for banking systems ($100M+ daily volume)

* Architected AI/ML platforms with 98% infrastructure cost reduction

* Fractional CTO experience transforming legacy systems

Resume: Upon request

Email: dev (at) azdv.co

Seeking: Fractional CTO roles, FinTech architecture, AI/ML infrastructure projects
by michallech | 2025-11-03 17:45:16+00:00
Location: Poland (US timezones OK):

Remote: Yes, ok with in-office meetings Willing to relocate: Yes for selected offers Technologies: * Go, Java, C# * PHP, Laravel * Python, Django, FastAPI, Flask * React, React Native, NodeJS, Firebase * Kubernetes, AWS, GC, Azure, Terraform, CephFS, GlusterFS, Proxmox, esxi * PyTorch, Apache Spark, Apache Airflow, Kafka * LLM Integrations: Claude, OpenAI, Gemini, Mistral, DeepSeek, routers * LLM fine-tuning, RAG/CAG, LoRA, MCP, Agentic workflows Résumé/CV: https://michallech.info/static/Michal-Lech-Resume.pdf Email: michal@michallech.info

Well rounded Full Stack Engineer (and a former CTO) who thrives in high pressure startup environments, mentor, geek and a budding ML/LLM researcher.
by radug14 | 2025-11-03 17:45:42+00:00
I understand and agree, but this is a technical screening. Typically you would have someone from HR have an initial conversation with the applicant to align. This comes after, if it's a go from both parties.

Furthermore, Niju does not automate the decision. AI is only used to create a transcript, a summary of the interview with, a list of important moments and a set of indicative scores on a number of criteria.

The decision is always with the human.
by gpm | 2025-11-03 17:46:03+00:00
They are still going to interview if you choose to move forwards with this one sided time sink [1], and you pass. The first half of that criteria will filter out many of the good candidates.

Which as yanyu says is a signal the company isn't "willing to spend the effort, time, and money to provide a good recruiting process, [which is] a huge red flag for the kind of candidates you want and the kind of employee experience you provide".

Which circles around and creates even more incentive for good candidates not to participate.

There's no doubt a market on both sides for hiring mediocre candidates. Approximately everyone has a job after all, not just the best people, but a tool like this is clearly optimizing for that not for excellence.

[1] See the excellent description of why this is problematic as a candidate who values your own time here: https://news.ycombinator.com/item?id=45801853
by iliaov | 2025-11-03 17:46:05+00:00
Remake.ai | Full Stack Engr; Founding Software Engr | Full-time | Remote (worldwide)

Apps for robots - home vacuums, quadrupeds, drones, humanoids, etc. Think Apple remaking ordinary phones into smartphones with apps & app store - only for robots.

Status: $1M pre-seed, prototype MVP works, pre-traction, ~16K ARR, manufacturing partnership(s) forming, headcount 2 full-time + 3 part-time

1. https://www.linkedin.com/jobs/view/4320217892/ Full Stack Engineer 2. https://www.linkedin.com/jobs/view/4294520255/ Founding Software Engineer (or Cofounder)

Email iliao at remake dot ai
by lotsofpulp | 2025-11-03 17:46:14+00:00
Health insurance premium revenue = medical loss ratio + operating costs + profit margin

Medical loss ratio is the money paid to healthcare providers. Operating costs end up being ~10%, across multiple publicly listed companies. This fact, plus 2% to 3% profit margins means any more cost reductions have to come from legislation, reduction in healthcare prices, or advances in automation.

https://www.oliverwyman.com/our-expertise/insights/2023/mar/...

https://www.kff.org/private-insurance/medical-loss-ratio-reb...
by embedding-shape | 2025-11-03 17:46:18+00:00
Don't let it get to you, software is used for much more horrible stuff in the world (I'm glad you seem unaware of it so far if this is the worst you've come across) but that shouldn't let us impact the good stuff we build with it.

Letting things like this get the best of your emotions just makes it harder for you to focus on healthy, happy and impactful projects, so please don't let it get to you.
Show HN: Distil expenses – personal finance agent
by gabika | 2025-11-03 17:46:50+00:00
We trained SLM-powered assistants for personal expenses summaries that you can run locally via Ollama. Out of the box, Llama 3.2 3B is correct only 24% of the time, while our fine-tuned models reach GPT-OSS 120B performance (up to 88%).
by synapsomorphy | 2025-11-03 17:46:56+00:00
Full stack / Generalist Engineer

Location: US (GA)

Remote: Yes

Willing to relocate: Yes, only to PNW or Bay Area

Technologies: Python, Linux, embedded C, SQL, React, AI/ML (PyTorch, LLMs), electrical

Résumé/CV: https://synapsomorphy.com/resume.pdf

Email: On CV

---

Fullstack engineer with 2 yrs exp. Coming off a year building the entire tech stack for a YC alum deeptech + biotech startup, from scratch, as the sole SWE or EE. (product: https://andsonbiotech.com/platform/)

I've also built/worked on rockets, drones, robots, a lunar lander, a Mars helicopter at NASA, and a new type of 3D printer. See portfolio on website: https://synapsomorphy.com/

Prefer early-mid stage, say Series C or earlier, and core products that have 1 or more of [biology, ML, hardware], in order of preference. But mostly I just care about solving hard and meaningful problems with cool people.
by antirez | 2025-11-03 17:47:30+00:00
Redis Vector Sets, my work for the last year, I believe address many of such points:

1. Updates: I wrote my own implementation of the HNSW with many changes compared to the paper. The result is that the data structure can be updated while it receives queries, like the other Redis data types. You add vectors with VADD, query for similarity with VSIM, delete with VREM. Also deleting vectors will not perform just a thumbstone deletion. The memory is actually reclaimed immediately.

2. Speed: The implementation is fast, fully threaded reads, partially threaded writes: even for insertion it is easy to stay in the few hundreds of ops/sec, and querying with VSIM is like 50k ops/sec in normal hardware.

3. Trivial: You can reimplement your use case in 10 minutes including learing how it works.

Of course it costs some memory, but less than you may guess: it supports quantization by default, transparently, and for a few millions of elements (most use cases) the memory usage is very low, totally affordable.

Bonus point: if you use vector sets you can ask my help for free. At this stage I support people using vector sets directly.

I'll link here the documentation I wrote myself as it is a bit hard to find, you know... a README inside the repository , in 2025, so odd: https://github.com/redis/redis/blob/unstable/modules/vector-...

P.S. in the README there is stale mention about replication code being not really tested. I filled the gap later and added tests, fixed bugs and so forth.
by exabrial | 2025-11-03 17:47:37+00:00
As other commenters have said, pre-existing conditions could and should have been handled separately in a single issue bill, separate from existing insurance. Instead, the truckload of regulations that was brought in around Obamacare has buried health insurance in the US in depths of inefficiency.

Its absurd to drive multi-ton flaming trash truck when all we originally needed was a scooter.
by alecrobins | 2025-11-03 17:47:59+00:00
Rally UXR | Remote | Full-time | Senior/Staff Backend Engineer | $190k–$225k | 0.10%–0.50% Equity

We're building the leading User Research CRM (rallyuxr.com)

Apply here:

https://www.ycombinator.com/companies/rally-uxr/jobs/Ku40MR7...

--------

At Rally, we believe talking to your users is the key to building great products. Our platform is used by teams at Google, Figma, GitLab, MongoDB, and more to streamline every step of the user research process in one tool.

We’re a remote-first, Series A startup with a small, senior team of builders. While we’re remote, we value connection—hosting regular in-person offsites and providing a yearly remote office stipend.

As a Senior/Staff Backend Engineer, you’ll be central to scaling Rally’s systems to power hundreds of millions of participant records and billions of events. You’ll own core infrastructure like email/SMS delivery, data pipelines, search, and workflow automation—and lay the foundation for new AI-driven features.

We’re fully built in TypeScript and use AWS, Postgres, ElasticSearch, Kafka, and Temporal. No requirements to have previous Typescript experience, but need to be willing to learn.

Join us if you love building for scale, value craftsmanship, and want to shape the backend foundation of a fast-growing product used by the world’s best product teams.
by metadata | 2025-11-03 17:48:49+00:00
A lovely language with an incredible web framework (Phoenix, LiveView). However, not easy to pick up for people with only imperative programming experience.

I had to switch my project to .NET in the end because it was too hard to find/form a strong Elixir team. Still love Elixir. Indestructible, simple, and everything is easy once you wrap your head around the functional programming.

It. Just. Works.
by aspen420 | 2025-11-03 17:49:18+00:00
Location: Greater NYC Area

Remote: Doesn't matter

Willing to relocate: Yes, but preferably after June 2025. International relocation is fine as well.

Technologies: SDN, hypervisors, OS, embedded systems, low-latency networking, video streaming

Languages: Rust, C, x86/ARM/Hexagon/RISC-V Assembly, Go, Ruby, Python, Java, JS/TS, HTML/CSS, SQL, Basic C++, Basic P4. Protocols: HTTP, TCP/IP, UDP, RTP, BGP Tools: GDB, perf, Git, Docker, Linux, POSIX shell, KVM, Xen

Resume/CV: on request, but https://ramesh.tv should have most of my work + LinkedIn

Email: me@ramesh.tv

Hi, I'm Ramesh. I'm looking for positions related to OS development, systems programming, networking, and performance engineering. I will be a new grad, graduating in January, and could start then.

I started programming in middle school and have 9 years of programming experience across the stack, including full-stack web dev, databases, system administration, networking, systems and OS-level experience. I'm familiar with Linux device drivers, I'm working on a hobby RISC-V OS project right now. Additional recent work includes a low-latency video streaming/remote desktop software, emulation support for the Qualcomm Hexagon DSP. I'm quite passionate, curious, and excited about computers and grow and learn extremely quickly.
by wkat4242 | 2025-11-03 17:50:01+00:00
Nice, but when you look up close things like this and Google Earth look like a post-apocalyptic scene :)

It would be amazing if they could also take user-generated photos and videos at ground level and accurate mapping data (that has building outlines) and clean that up to something presentable.

I mean, what they do here is what google and apple are already doing for years. It's time for the next step.
by jcranmer | 2025-11-03 17:50:14+00:00
I know that "ads" is the popular assumption for how you're supposed to make money, but most sites don't really make all that much money with ads. Facebook and Google aren't rich from selling ads, they're rich from all of the ad infrastructure and quite frankly their ability to follow you around on the internet.

Besides, how are ads on ChatGPT supposed to work? If some student is asking it to write their paper for them, is ChatGPT going to stop in the middle of it and go "Hey, you know what sounds good right now? A nice bowl of soup..." Although admittedly that would make for some hilarious proof of people using AI for things they shouldn't...
by punjabikura | 2025-11-03 17:50:15+00:00
Credit Genie (https://creditgenie.com/) | Onsite | NYC/Philadelphia/Pittsburgh

Credit Genie is a mobile-first financial wellness platform designed to help individuals take control of their financial future. We leverage artificial intelligence to provide personalized insights and are building a financial ecosystem by offering tools and services that provide instant access to cash and building credit. Our goal is to empower every customer to achieve long-term financial stability.

Critical Open Roles - Engineering, AI/ML, Product, Design:

* Software Engineering Manger, Mobile: https://jobs.ashbyhq.com/creditgenie/af8cbaca-5c9d-407a-a085...

* Staff Software Engineer: https://jobs.ashbyhq.com/creditgenie/59213905-bf07-4a8c-9c7e...

* Senior Frontend Engineer: https://jobs.ashbyhq.com/creditgenie/425a5741-dc5e-46fe-89fc...

* Staff Android Engineer: https://jobs.ashbyhq.com/creditgenie/49c678d9-3690-4f31-9c17...

* Staff iOS Engineer: https://jobs.ashbyhq.com/creditgenie/1fe564fe-dd61-4a39-91a5...

* Machine Learning Engineering Lead: https://jobs.ashbyhq.com/creditgenie/c1493ab5-3422-4536-8c4d...

* Staff Software Engineer, ML: https://jobs.ashbyhq.com/creditgenie/ed4fb884-7e35-44ab-8abf...

* Senior Product Manager, Card: https://jobs.ashbyhq.com/creditgenie/eec612e5-351b-43cc-9b14...

* Head of Design: https://jobs.ashbyhq.com/creditgenie/c45e0cf2-2b99-4c89-9764...

* Senior Product Designer, Mobile: https://jobs.ashbyhq.com/creditgenie/8e2a2e47-d4fd-459d-98b5...

We recently raised our Series B from notable venture capital firms, including Khosla Ventures and PayPal Ventures. We have strong unit economics and are on track to (more than) double our revenue growth this year. These are super positive signals for our company, emphasizing product market fit and stability as an early stage startup that's well positioned for continued growth.

Interested? Apply directly via the above links.
by t_mann | 2025-11-03 17:50:33+00:00
How is "most of that pressure gone"? You're still being evaluated and have to code against a clock, with less time, less opportunities to ask questions and less immediate feedback that could get you back on track.

Also, your 20 vs 30 minute calculation ignores that companies are incentivized to conduct more screening tests if it becomes practically free for them. But the number of positions stays the same. So if instead of 10 screening calls they do 16 tests for one position, that's already more time being wasted, even if the tests are 1/3 shorter. And realistically, the number will shoot up much more.
by uvaursi | 2025-11-03 17:50:36+00:00
This is a good use of macros. I understand people are frightened by how it looks but it’s just C in a terse, declarative style. It’s mostly straightforward, just dense and yes - will challenge you because of various obscure macro styles used.

I believe “oo” is probably an infinity error condition or some such not 100% sure. I didn’t see the author discuss it since they said it’s not used. Was probably used during development as a debug printout.
by yannyu | 2025-11-03 17:51:08+00:00
That's what makes people feel valued and human, needing to get past a robot before they're allowed to talk to people.

And to be clear, I think hiring today is completely broken already. This kind of thing is just one more step in the direction of marginalizing people who are already struggling to find work. In an already broken hiring system, these approaches to "save engineering time" or "drive a more efficient hiring process" exacerbate the divide between those who have jobs and those who are desperate to get a fair shot, and that’s what feels truly dehumanizing.
by mrguyorama | 2025-11-03 17:51:10+00:00
No, Americans are numerically illiterate.

Which is why all the dumbest Americans insist that "Why didn't they teach us how to balance a check book?", while, well, they were taught that, and every single check book comes with clear and simple instructions for its use

They were also taught how to calculate loan details and the extreme power of how interest grows, but they were too busy crying "Oh this is lame, when am I ever going to use this?"

There's a cult of proud ignorance in the US. People will brag about being uneducated, illiterate, or unable to follow simple instructions.
by myrmidon | 2025-11-03 17:51:39+00:00
There is some good insight in there, and it raises some interesting points.

But it misses a somewhat critical question in my view:

What percentage of global manufacturing would you expect the Chinese to have over the past/next decades?

China, in my view, did a great job in industrializing their country similarly to post-war Germany, Japan or South Korea before them, and that process is still ongoing-- but you could have written very similar articles about the exact same topic (automation) involving those countries instead as "antagonists" (at many points in the last half century).

My perspective is simply that a large (dominant!) Chinese share in manufacturing is almost inevitable from population size and wage development alone (for now), but I would expect their dominance on the international market to level out and then decrease similarly to their "predecessors" as wages approach "western" levels (possibly from both directions!).
by kakacik | 2025-11-03 17:51:50+00:00
Farmed seafood is among the worst garbage you can eat. Tons of antibiotics, growth hormones, fish are fed utter cheap junk so ie salmon meat has more like pork composition than a wild salmon, shrimp are even worse. If you ever saw a shrimp 'factory' and grow pond/cage and its surroundings in a typical 3rd world country where most come from, you wouldn't eat it for a long time if ever again. Literally nothing lives around those places.

Good in theory, horrible in practice.