Sarah • Machine Learning Engineer
@galaxyinferno.bsky.social
Casual updates on life as a ML engineer - currently working in the public utilities sector 🚰🚋🔌🗑
🎓 | Degrees in Math & CS
Links: https://sarahglasmacher.com/links/
🎓 | Degrees in Math & CS
Links: https://sarahglasmacher.com/links/
August ML coding challenge is alive and kicking - join for free and learn something with me 👀
www.sarahglasmacher.com/ml-repo-stru...
www.sarahglasmacher.com/ml-repo-stru...
🚀 Ready to Finally Upgrade from messy ML notebooks? Setup to Shipping Challenge
Tired of hard-to-maintain ML code? Join me on the 4-week ML Project Blueprint Challenge and turn a blank repo into a clean, configurable, and shippable ML project.
www.sarahglasmacher.com
August 9, 2025 at 2:13 AM
August ML coding challenge is alive and kicking - join for free and learn something with me 👀
www.sarahglasmacher.com/ml-repo-stru...
www.sarahglasmacher.com/ml-repo-stru...
happy friday, coders ⌨️🎊 technically the work week is over - however I have an important project presentation next tuesday, so I think i’ll tweak my gridsearch some more 🫣
August 1, 2025 at 7:35 PM
happy friday, coders ⌨️🎊 technically the work week is over - however I have an important project presentation next tuesday, so I think i’ll tweak my gridsearch some more 🫣
Being an adult truly involves a lot of cleaning - not only your apartment but for some reason also your computer? And your phone camera roll (don't tell me I'm the only one with 2k screenshots 🫣) - and then there is work documentation to do as well. Anyways, I did some cleaning this weekend
April 13, 2025 at 9:35 PM
Being an adult truly involves a lot of cleaning - not only your apartment but for some reason also your computer? And your phone camera roll (don't tell me I'm the only one with 2k screenshots 🫣) - and then there is work documentation to do as well. Anyways, I did some cleaning this weekend
published my 4th article of the year on my blog 🥳 and my first ever post about mlflow, where i’m trying to overcome my imposter syndrome: i’m learning a lot, but am far from an expert and am sooo afraid of giving bad advice 🫠
buff.ly/pwLyjbL
buff.ly/pwLyjbL
April 8, 2025 at 11:01 PM
published my 4th article of the year on my blog 🥳 and my first ever post about mlflow, where i’m trying to overcome my imposter syndrome: i’m learning a lot, but am far from an expert and am sooo afraid of giving bad advice 🫠
buff.ly/pwLyjbL
buff.ly/pwLyjbL
my linkedin post finally published *with* its image attached 🥳
(also someone pls tell me why writing 400 word social posts feels easy but writing an 800 word blog post feels impossible?)
(also someone pls tell me why writing 400 word social posts feels easy but writing an 800 word blog post feels impossible?)
April 6, 2025 at 10:11 PM
my linkedin post finally published *with* its image attached 🥳
(also someone pls tell me why writing 400 word social posts feels easy but writing an 800 word blog post feels impossible?)
(also someone pls tell me why writing 400 word social posts feels easy but writing an 800 word blog post feels impossible?)
“Rust” always trips me up because I can never tell on first glance if we’re talking about the game or the coding language - somehow my brain always defaults to the game and ends up confused 🤷🏻♀️
April 5, 2025 at 7:25 AM
“Rust” always trips me up because I can never tell on first glance if we’re talking about the game or the coding language - somehow my brain always defaults to the game and ends up confused 🤷🏻♀️
No thank you, chatgpt, i would *not* like a printable tracker, I haven’t used my printer in 5 years 😅🫠 Is this a new thing or did I somehow tell it I love printing things?
March 29, 2025 at 6:15 PM
No thank you, chatgpt, i would *not* like a printable tracker, I haven’t used my printer in 5 years 😅🫠 Is this a new thing or did I somehow tell it I love printing things?
Another day of triple checking all data and… finding out two temperature columns are not the same?! 🫠😤 I will never take sorted and orderly data for granted again.
March 24, 2025 at 11:54 PM
Another day of triple checking all data and… finding out two temperature columns are not the same?! 🫠😤 I will never take sorted and orderly data for granted again.
New newsletter: my team and I were deep into a data audit - the forecasting model has already been trained - so the data should be very clean and complete, right? After all, someone has already worked with it... Spoiler alert: our data wasn’t nearly as complete as we thought. 😅
We almost deployed a model trained on missing data 🫣
MAR 17
buff.ly
March 17, 2025 at 10:34 PM
New newsletter: my team and I were deep into a data audit - the forecasting model has already been trained - so the data should be very clean and complete, right? After all, someone has already worked with it... Spoiler alert: our data wasn’t nearly as complete as we thought. 😅
Is there any good source on comparing which LLMs/providers people actually use day to day in terms of percentages? I feel like we always hear from vocal minorities when new models launch, but how much has, for example, Gemini actually grown on the market in total? 👀
March 15, 2025 at 12:34 PM
Is there any good source on comparing which LLMs/providers people actually use day to day in terms of percentages? I feel like we always hear from vocal minorities when new models launch, but how much has, for example, Gemini actually grown on the market in total? 👀
vibe coding?
see you in 2 years, when you start discussing “vibe debugging”, “vibe tech debt”, “vibe monitoring”, “vibe deployment”, “vibe security” and “vibe cost analytics”
see you in 2 years, when you start discussing “vibe debugging”, “vibe tech debt”, “vibe monitoring”, “vibe deployment”, “vibe security” and “vibe cost analytics”
March 11, 2025 at 11:11 AM
vibe coding?
see you in 2 years, when you start discussing “vibe debugging”, “vibe tech debt”, “vibe monitoring”, “vibe deployment”, “vibe security” and “vibe cost analytics”
see you in 2 years, when you start discussing “vibe debugging”, “vibe tech debt”, “vibe monitoring”, “vibe deployment”, “vibe security” and “vibe cost analytics”
I just wanted to write a quick tutorial on how I've used cosine similarity in pgvector to search for RAG sources in my side project... and now I'm doing a whole deep dive into "why tf are we using cosine similarity at all?" 🤔 and that's why I'm a very inconsistent content creator
March 3, 2025 at 9:56 PM
I just wanted to write a quick tutorial on how I've used cosine similarity in pgvector to search for RAG sources in my side project... and now I'm doing a whole deep dive into "why tf are we using cosine similarity at all?" 🤔 and that's why I'm a very inconsistent content creator
👩🏻💻 RAG side project update: Somehow I thought that fine-tuning a similarity threshold for RAG would be super difficult, but it turns out for my use case the “default” of 0.5 works just fine 🤷🏻♀️😅
March 1, 2025 at 11:33 PM
👩🏻💻 RAG side project update: Somehow I thought that fine-tuning a similarity threshold for RAG would be super difficult, but it turns out for my use case the “default” of 0.5 works just fine 🤷🏻♀️😅
I promised I would figure out what to do with my side project - here we are: i quickly threw together a short post on my website about a veery quick February project 😬
I said I would do a coding project each month, and I don’t intend to break that promise even if it means doing it in 4 days 😂
I said I would do a coding project each month, and I don’t intend to break that promise even if it means doing it in 4 days 😂
February 25, 2025 at 8:25 AM
I promised I would figure out what to do with my side project - here we are: i quickly threw together a short post on my website about a veery quick February project 😬
I said I would do a coding project each month, and I don’t intend to break that promise even if it means doing it in 4 days 😂
I said I would do a coding project each month, and I don’t intend to break that promise even if it means doing it in 4 days 😂
the irony of starting a RAG project & then immediately being thrown into a time series forecasting project at work😭 so now i’m spending all my free time learning about time series. It’s not even just about the available time - i find it incredibly hard to go “sponge-mode” on two topics at once. 🧽
February 24, 2025 at 8:25 AM
the irony of starting a RAG project & then immediately being thrown into a time series forecasting project at work😭 so now i’m spending all my free time learning about time series. It’s not even just about the available time - i find it incredibly hard to go “sponge-mode” on two topics at once. 🧽
no elevator in the new interim-building at work, so we’re now doing hallway selfies in the window-reflection when i stay long enough to be dark outside 😅🤷🏻♀️
February 23, 2025 at 8:25 AM
no elevator in the new interim-building at work, so we’re now doing hallway selfies in the window-reflection when i stay long enough to be dark outside 😅🤷🏻♀️
i’ve completely abandoned my side projects for 3 weeks while I was busy working way too much on the team’s yearly goal roadmap at work and onboarding to a new time series project - i’ve opened it yesterday and am now sitting in front of it with a solid case of “huh what now?” 🤔🫣
February 22, 2025 at 11:35 AM
i’ve completely abandoned my side projects for 3 weeks while I was busy working way too much on the team’s yearly goal roadmap at work and onboarding to a new time series project - i’ve opened it yesterday and am now sitting in front of it with a solid case of “huh what now?” 🤔🫣
You can really tell how money-hungry the GenAI market is whenever you’re searching for a small tool or library while coding and you only find closed-source SaaS solutions 🫠 damn it, I just want a quick testing setup and not a whole business contract…
January 29, 2025 at 2:23 PM
You can really tell how money-hungry the GenAI market is whenever you’re searching for a small tool or library while coding and you only find closed-source SaaS solutions 🫠 damn it, I just want a quick testing setup and not a whole business contract…
Why are models all around text embedding so all over the place? 🫠 I've looked into the BGE models because of open-source and multi-linguality, but apparently they use the FlagEmbedding library not sentence-transformers? But you can also use both? So what is the best way? 😵💫
January 26, 2025 at 6:18 PM
Why are models all around text embedding so all over the place? 🫠 I've looked into the BGE models because of open-source and multi-linguality, but apparently they use the FlagEmbedding library not sentence-transformers? But you can also use both? So what is the best way? 😵💫
So I just did Day 1, 30 minutes... I finished Tasks 1-5 😅 Normally my to-do lists are way too ambitious, this time I planned too little? Potentially?
January 21, 2025 at 8:25 AM
So I just did Day 1, 30 minutes... I finished Tasks 1-5 😅 Normally my to-do lists are way too ambitious, this time I planned too little? Potentially?
Is sharing your todo list also part of "building in public"? Did anyone ever write a guide on how to "build in public"? 😅🫣
January 21, 2025 at 1:11 AM
Is sharing your todo list also part of "building in public"? Did anyone ever write a guide on how to "build in public"? 😅🫣
Yay new blog post 🥳 I’m a real docker noob 🐳 so this was quite out of my comfort zone but I’m expanding my skill set so I’m trying to be proud instead of scared 😅 (tips welcome but please don’t be mean)
How to set up pgvector with Docker: Local Vector Database for Text Embeddings
In this post, I'll walk you through how I set up a local vector storage system using pgvector, a PostgreSQL extension designed for handling high-dimensional vectors. This setup is part of my ongoing…
buff.ly
January 16, 2025 at 12:59 AM
Yay new blog post 🥳 I’m a real docker noob 🐳 so this was quite out of my comfort zone but I’m expanding my skill set so I’m trying to be proud instead of scared 😅 (tips welcome but please don’t be mean)
I am subscribed to probably 40 newsletters, I have never hated a single email coming to inbox. And yet, every time I sit down to write my own newsletter, I feel like a horrible selfish person who has nothing of value to share to my 190 subscribers 😩
Any advice? What do you want from newsletters?
Any advice? What do you want from newsletters?
January 7, 2025 at 9:49 PM
I am subscribed to probably 40 newsletters, I have never hated a single email coming to inbox. And yet, every time I sit down to write my own newsletter, I feel like a horrible selfish person who has nothing of value to share to my 190 subscribers 😩
Any advice? What do you want from newsletters?
Any advice? What do you want from newsletters?
Tomorrow it’s back to work for me 😨😥 (it will definitely look nothing like on the picture - which was taken at my old office - because I will probably be tired and grumpy and in home office😅 my sleep schedule is baaad rn)
Please share your best return-to-work (after 2 weeks off) tips 👀
Please share your best return-to-work (after 2 weeks off) tips 👀
January 6, 2025 at 2:15 AM
Tomorrow it’s back to work for me 😨😥 (it will definitely look nothing like on the picture - which was taken at my old office - because I will probably be tired and grumpy and in home office😅 my sleep schedule is baaad rn)
Please share your best return-to-work (after 2 weeks off) tips 👀
Please share your best return-to-work (after 2 weeks off) tips 👀
