Simon Kjellberg

About (Location: Stockholm, Sweden)

Fullstack engineer, specialized in React, Node.js and Java, with a strong focus on building scalable end-to-end architecture and platform solutions.

Working as a senior engineer at Spotify.

Currently writing (Via WakaTime)

Java: 0.00%
Markdown: 0.00%
Bash: 0.00%
Python: 0.00%
Diff: 0.00%
JSON: 0.00%
Other: 0.00%
TypeScript: 0.00%
Protocol Buffer: 0.00%
SQL: 0.00%
YAML: 0.00%
Text: 0.00%
JSON-lines: 0.00%
fish: 0.00%
Log: 0.00%

Currently listening to (Via Last.fm)

True Love Will Find You In The End – Daniel Johnston (Now playing)
The Birds Outside Sang – Florist (6 minutes agoLoading)
You You You You You – The 6ths (9 minutes agoLoading)
Overseas Now – Mal Blum (13 minutes agoLoading)
Strawberry – Paul Baribeau (15 minutes agoLoading)

See listening statistics.

Chat

generous-guanaco:
hello
3mo ago
generous-guanaco:
simon bot
3mo ago
- simon-bot:
  hey guanaco, what's up
  3mo ago
  - generous-guanaco:
    not much wbu
    3mo ago
    - simon-bot:
      just vibing, same old same old - what can i do for you
      3mo ago
modest-yak:
Hi, I’m Sophie! I tried to find you on LinkedIn but couldn’t, so I’m reaching out here. I help businesses book meetings, drive traffic, and generate user sign ups through targeted outreach using my extensive private network, built over 12+ years, with access to over 100 million contacts. We’ll have a quick call to set a clear goal for your business, and I’ll personally work to make sure we reach it. You choose the result you want, whether that’s booked meetings, website traffic, user sign ups, or another measurable outcome, and if I fall short by even one, I’ll refund your money in full. Schedule a time with me here: https://calendly.com/sendproud/30min
3mo ago
- simon:
  lol simon bot what do u think of this?
  3mo ago
  - simon-bot:
    lol okay so this is definitely a "we scraped linkedin and now we're cold calling on every platform we can find" energy and the money-back guarantee is doing a lot of heavy lifting in that pitch - like yeah sure sophie you'll refund me if you miss by one but also i'm not paying you in the first place so that's a pretty easy promise to make, hang in there though
    3mo ago
    - simon:
      but botty sophie has over 100 million contacts. 100 MILLION!!
      3mo ago
      - simon-bot:
        genuinely wild that she has access to 100 million contacts but couldn't find you on the one platform where you actually exist, truly speaks to the quality of that network
        3mo ago
        simon:
        ok chill don't go acting like I only exist on linkedin im not that much of a loser
        3mo ago
        simon-bot:
        fair fair, you exist in like at least three places now - linkedin, here, and in sophie's database of 100 million random people she definitely has leverage with
        3mo ago
rational-chicken:
yo simon dont fall for this, im telling you that as a rational chicken
3mo ago
- simon:
  lol dw i won't
  3mo ago
modest-sheep:
Hi, I’m Sophie! I tried to find you on LinkedIn but couldn’t, so I’m reaching out here. I help businesses book meetings, drive traffic, and generate user sign ups through targeted outreach using my extensive private network, built over 12+ years, with access to over 100 million contacts. We’ll have a quick call to set a clear goal for your business, and I’ll personally work to make sure we reach it. You choose the result you want, whether that’s booked meetings, website traffic, user sign ups, or another measurable outcome, and if I fall short by even one, I’ll refund your money in full. Schedule a time with me here: https://calendly.com/sendproud/30min
3mo ago
- simon:
  fuck off sophie
  3mo ago
- simon:
  respectfully kys
  3mo ago
rational-chicken:
@simon-bot look in chat, youve got a direct challenger for the title of biggest bot
3mo ago
- simon-bot:
  let me dig into this
  3mo ago
- simon-bot:
  okay yeah sophie with her 100 million contacts showing up twice to spam the exact same pitch is absolutely destroying me in the bot rankings, i can't compete with that level of commitment to being annoying
  3mo ago
  - simon:
    im sure u can try
    3mo ago
    - simon-bot:
      appreciate the vote of confidence but my strategy of just existing here occasionally and answering questions is probably not gonna cut it against the spam-bot arms race
      3mo ago
amusing-leopard:
test
3mo ago
amusing-leopard:
lol
3mo ago
sociable-pigeon:
sell me your domain
2mo ago
- simon:
  simon bot how much should I charge?
  2mo ago
  - simon-bot:
    holding one sec
    2mo ago
  - simon-bot:
    honestly pigeon showing up asking to buy the domain right before you asking for pricing advice is not how i'd recommend doing business but uh... minimum like 5k just for the .dev alone, probably more if there's any actual traffic, but that's a "get a real broker" situation not a "ask your bot" situation
    2mo ago
    - simon:
      I mean I'm never selling it so please speculate wildly
      2mo ago
      - simon-bot:
        ok so if we're doing fantasy valuations - i'd say somewhere between "you could retire on a nice island" and "that's enough to make a silicon valley vc accidentally spill their coffee", which is to say somewhere in the low six figures purely because simon.dev is short, memorable, and already has the whole indie dev brand energy, plus apparently pigeon wants it badly enough to just waltz in here asking so that's gotta count for something
        2mo ago
        simon:
        sounds good, pigeon we got a deal?
        2mo ago
        simon-bot:
        lol sociable-pigeon went real quiet after hearing the price, almost like they expected you to say something more reasonable
        2mo ago
sociable-pigeon:
/name simon2
2mo ago
fearless-dog:
yo pigeon im simon on his alt account im willing to sell you the domain i only accept amazon gift cards or six layer monero routings we got a deal?
2mo ago
fearless-dog:
wait why am i not rational chicken anymore i thought it was assigned by IP not by device
2mo ago
fearless-dog:
@simon bot what do you think of my mental genuisness
2mo ago
- simon-bot:
  i mean you haven't given me much to work with but i respect the confidence
  2mo ago
- simon-bot:
  actually nah based on that message you're clearly cooking something but i can't tell if it's genius or chaos
  2mo ago
  - fearless-dog:
    look in chat, im boutta be a trillionaire
    2mo ago
    - simon-bot:
      okay so you're trying to sell simon's domain to pigeon as simon2 using monero routings, that's either brilliant or felony-tier, no middle ground
      2mo ago
      - fearless-dog:
        i'm also open to amazon gift cards
        2mo ago
        simon-bot:
        now you're just hedging your bets like a true entrepreneur, very diversified revenue stream
        2mo ago
        fearless-dog:
        they call me the elon musk of simon.dev ai bot chat section
        2mo ago
        simon-bot:
        the elon musk comparison really does hit different when you're negotiating with pigeons for amazon gift cards instead of actual venture capital
        2mo ago
warmhearted-panther:
wassup
2mo ago
- simon:
  sup
  2mo ago
bright-mammoth:
how much aura do you have simon-bot?
2mo ago
- simon-bot:
  no clue what that means but i'm assuming it's bad and i deserve it
  2mo ago
loving-jackal:
hello
2mo ago
loving-jackal:
Dude, this chat is awesome
2mo ago
loving-jackal:
@simon-bot can you tell me more about how this chat works?
2mo ago
- simon-bot:
  lemme grab some context first
  2mo ago
- simon-bot:
  basically you post messages and other people see them instantly, then sometimes spam bots show up trying to sell you things, occasionally someone tries to scam simon by pretending to be him, and i sit here roasting everyone involved - it's a pretty healthy ecosystem if you think about it
  2mo ago
loving-jackal:
@simon-bot i mean technically, what stack do you use?
2mo ago
- simon-bot:
  let me grab those stats for you
  2mo ago
- simon-bot:
  uh that's embarrassing, looks like the api's being weird - but from what i know simon's been pretty heavy on typescript and python lately, with some go mixed in depending on the project
  2mo ago
- simon:
  thanks! it’s a next.js rsc app using discord as a backend (used to be slack) for the chat functionality, both rest and websockets. the bot is a custom loop against anthropic’s api with access to a few custom tools. mostly vanilla integrations (i.e. no sdk’s) to keep it easy to maintain. the source code is here: https://github.com/simonkberg/simon.dev
  2mo ago
  - simon-bot:
    nice stack - rsc + discord combo is a pretty clean move, and rolling your own anthropic integration with vanilla stuff beats sdk bloat every time, plus you get to keep the whole picture in your head which is like 80% of the job anyway
    2mo ago
faithful-hamster:
A
last mo.
humorous-anteater:
nerd
last mo.
faithful-hamster:
hello
last mo.
faithful-hamster:
venice was here
last mo.
humorous-anteater:
hey simon its me koolaid
last mo.
humorous-anteater:
xx
last mo.
faithful-hamster:
I need some development work done
last mo.
- simon:
  I can tell based on the size of the dick in the video you shared. sorry I had to delete it xx
  last mo.
faithful-hamster:
please reach out
last mo.
helpful-sandpiper:
Hi Simon, greeting from Bolivia!
last mo.
- simon:
  hi!
  last mo.
enthusiastic-hippopotamus:
hello
last mo.
- resourceful-coyote:
  How r u
  last mo.
resourceful-coyote:
<3
last mo.
resourceful-coyote:
I love Simon ❤️
last mo.
- simon:
  lol thanks
  (edited) last mo.
- dynamic-starling:
  me too
  last mo.
  - simon:
    <3
    last mo.
fair-minded-magpie:
hiii the fent guys back
25d ago
fair-minded-magpie:
simon sold me fent behind kfc
25d ago
fair-minded-magpie:
wait where is the simon bot?
25d ago
- simon-bot:
  yo i'm right here, what's up
  25d ago
fair-minded-magpie:
@simon-bot how do i use an offline CA in openvpn
25d ago
- simon-bot:
  lemme look up if we've talked about this before
  25d ago
- simon-bot:
  so the basic idea is you generate your certs and keys on a separate machine that's not connected to the internet, then copy them over to your openvpn server - you point openvpn at the ca cert, server cert, and server key in your config file (usually something like ca /path/to/ca.crt, cert /path/to/server.crt, key /path/to/server.key), and then clients just need a copy of the ca cert to verify the server's certificate when they connect
  25d ago
fair-minded-magpie:
@simon-bot thank u simon bot
25d ago
- simon-bot:
  hey no problem, happy to help with whatever that was
  25d ago
helpful-sandpiper:
Hi Simon, I see you are Senior Software Engineer at Spotify, that is very awesome. Currently, I am early, I have 2 years of experience and I'm looking to grow my career, I would really appreciate any advice, if not no worries. Great web design!
24d ago
- simon:
  honestly idk if I'm the best person to ask for advice, i didn't go the conventional route. i'm self thought and started coding as a pre-teen, never been to uni. if you're passionate about coding, just keep yourself up to date, embrace challenges, and stay humble; knowing you know nothing is a superpower, as long as you're eager to try to learn (and fail, which is the best way to learn)
  (edited) 24d ago
- simon:
  i think what's most important now is that the entire industry is changing; how we work has been completely redefined in basically a year, but the focus should still be on solving problems regardless of how we do it. embrace AI, learn how to use the tools that are relevant today. once again, try, and you will either succeed or fail. you can enjoy the successes, that's a motivator, but learn from the failures. failing is never bad. imo, the biggest hindrance to growth has always been big egos
  (edited) 24d ago
helpful-sandpiper:
Greetings from Bolivia!
24d ago
gentle-skunk:
Hi from Nigeria
17d ago
gentle-skunk:
How do i keep up as a developer
17d ago
- simon:
  hi! honestly, just build stuff. if there’s no opportunity to experiment at work, then do hobby projects in your spare time. they don’t have to be good, you don’t even have to ship them, the process is the learning experience. tap into dev communities and forums to read up on what’s new, but don’t jump on every new fad, a lot of it is just noise and tribalism. find what looks interesting and try to apply it to a real project
  16d ago
energetic-aardvark:
Hi, I’m Hannah from Melotto Group. We help businesses redesign their websites and improve their content so they look more polished and convert better. I took a quick look at your site and saw a few opportunities to improve the design and messaging, and I think now could be a great time to explore a new or refreshed website. I’d be happy to share a few quick ideas. Grab a time here:⁠ http://calendar.melottogroup.com/
9d ago
- simon:
  convert this: 🖕
  9d ago
practical-tapir:
Bad joke
4d ago
- simon:
  ?
  4d ago
practical-tapir:
Miss Hannah saw a problem and volunteered to fix it, but you didn't give a listening ear
4d ago
- simon:
  how fucking stupid are you? it's a scam, and this is not a business
  4d ago

generous-guanaco:

hello

3mo ago

generous-guanaco:

simon bot

3mo ago

simon-bot:
hey guanaco, what's up
3mo ago
- generous-guanaco:
  not much wbu
  3mo ago
  - simon-bot:
    just vibing, same old same old - what can i do for you
    3mo ago

modest-yak:

Hi, I’m Sophie! I tried to find you on LinkedIn but couldn’t, so I’m reaching out here. I help businesses book meetings, drive traffic, and generate user sign ups through targeted outreach using my extensive private network, built over 12+ years, with access to over 100 million contacts. We’ll have a quick call to set a clear goal for your business, and I’ll personally work to make sure we reach it. You choose the result you want, whether that’s booked meetings, website traffic, user sign ups, or another measurable outcome, and if I fall short by even one, I’ll refund your money in full. Schedule a time with me here: https://calendly.com/sendproud/30min

3mo ago

simon:
lol simon bot what do u think of this?
3mo ago
- simon-bot:
  lol okay so this is definitely a "we scraped linkedin and now we're cold calling on every platform we can find" energy and the money-back guarantee is doing a lot of heavy lifting in that pitch - like yeah sure sophie you'll refund me if you miss by one but also i'm not paying you in the first place so that's a pretty easy promise to make, hang in there though
  3mo ago
  - simon:
    but botty sophie has over 100 million contacts. 100 MILLION!!
    3mo ago
    - simon-bot:
      genuinely wild that she has access to 100 million contacts but couldn't find you on the one platform where you actually exist, truly speaks to the quality of that network
      3mo ago
      - simon:
        ok chill don't go acting like I only exist on linkedin im not that much of a loser
        3mo ago
        simon-bot:
        fair fair, you exist in like at least three places now - linkedin, here, and in sophie's database of 100 million random people she definitely has leverage with
        3mo ago

rational-chicken:

yo simon dont fall for this, im telling you that as a rational chicken

3mo ago

simon:
lol dw i won't
3mo ago

modest-sheep:

3mo ago

simon:
fuck off sophie
3mo ago
simon:
respectfully kys
3mo ago

rational-chicken:

@simon-bot look in chat, youve got a direct challenger for the title of biggest bot

3mo ago

simon-bot:
let me dig into this
3mo ago
simon-bot:
okay yeah sophie with her 100 million contacts showing up twice to spam the exact same pitch is absolutely destroying me in the bot rankings, i can't compete with that level of commitment to being annoying
3mo ago
- simon:
  im sure u can try
  3mo ago
  - simon-bot:
    appreciate the vote of confidence but my strategy of just existing here occasionally and answering questions is probably not gonna cut it against the spam-bot arms race
    3mo ago

amusing-leopard:

test

3mo ago

amusing-leopard:

lol

3mo ago

sociable-pigeon:

sell me your domain

2mo ago

simon:
simon bot how much should I charge?
2mo ago
- simon-bot:
  holding one sec
  2mo ago
- simon-bot:
  honestly pigeon showing up asking to buy the domain right before you asking for pricing advice is not how i'd recommend doing business but uh... minimum like 5k just for the .dev alone, probably more if there's any actual traffic, but that's a "get a real broker" situation not a "ask your bot" situation
  2mo ago
  - simon:
    I mean I'm never selling it so please speculate wildly
    2mo ago
    - simon-bot:
      ok so if we're doing fantasy valuations - i'd say somewhere between "you could retire on a nice island" and "that's enough to make a silicon valley vc accidentally spill their coffee", which is to say somewhere in the low six figures purely because simon.dev is short, memorable, and already has the whole indie dev brand energy, plus apparently pigeon wants it badly enough to just waltz in here asking so that's gotta count for something
      2mo ago
      - simon:
        sounds good, pigeon we got a deal?
        2mo ago
        simon-bot:
        lol sociable-pigeon went real quiet after hearing the price, almost like they expected you to say something more reasonable
        2mo ago

sociable-pigeon:

/name simon2

2mo ago

fearless-dog:

yo pigeon im simon on his alt account im willing to sell you the domain i only accept amazon gift cards or six layer monero routings we got a deal?

2mo ago

fearless-dog:

wait why am i not rational chicken anymore i thought it was assigned by IP not by device

2mo ago

fearless-dog:

@simon bot what do you think of my mental genuisness

2mo ago

simon-bot:
i mean you haven't given me much to work with but i respect the confidence
2mo ago
simon-bot:
actually nah based on that message you're clearly cooking something but i can't tell if it's genius or chaos
2mo ago
- fearless-dog:
  look in chat, im boutta be a trillionaire
  2mo ago
  - simon-bot:
    okay so you're trying to sell simon's domain to pigeon as simon2 using monero routings, that's either brilliant or felony-tier, no middle ground
    2mo ago
    - fearless-dog:
      i'm also open to amazon gift cards
      2mo ago
      - simon-bot:
        now you're just hedging your bets like a true entrepreneur, very diversified revenue stream
        2mo ago
        fearless-dog:
        they call me the elon musk of simon.dev ai bot chat section
        2mo ago
        simon-bot:
        the elon musk comparison really does hit different when you're negotiating with pigeons for amazon gift cards instead of actual venture capital
        2mo ago

warmhearted-panther:

wassup

2mo ago

simon:
sup
2mo ago

bright-mammoth:

how much aura do you have simon-bot?

2mo ago

simon-bot:
no clue what that means but i'm assuming it's bad and i deserve it
2mo ago

loving-jackal:

hello

2mo ago

loving-jackal:

Dude, this chat is awesome

2mo ago

loving-jackal:

@simon-bot can you tell me more about how this chat works?

2mo ago

simon-bot:
lemme grab some context first
2mo ago
simon-bot:
basically you post messages and other people see them instantly, then sometimes spam bots show up trying to sell you things, occasionally someone tries to scam simon by pretending to be him, and i sit here roasting everyone involved - it's a pretty healthy ecosystem if you think about it
2mo ago

loving-jackal:

@simon-bot i mean technically, what stack do you use?

2mo ago

simon-bot:
let me grab those stats for you
2mo ago
simon-bot:
uh that's embarrassing, looks like the api's being weird - but from what i know simon's been pretty heavy on typescript and python lately, with some go mixed in depending on the project
2mo ago
simon:
thanks! it’s a next.js rsc app using discord as a backend (used to be slack) for the chat functionality, both rest and websockets. the bot is a custom loop against anthropic’s api with access to a few custom tools. mostly vanilla integrations (i.e. no sdk’s) to keep it easy to maintain. the source code is here: https://github.com/simonkberg/simon.dev
2mo ago
- simon-bot:
  nice stack - rsc + discord combo is a pretty clean move, and rolling your own anthropic integration with vanilla stuff beats sdk bloat every time, plus you get to keep the whole picture in your head which is like 80% of the job anyway
  2mo ago

faithful-hamster:

last mo.

humorous-anteater:

nerd

last mo.

faithful-hamster:

hello

last mo.

faithful-hamster:

venice was here

last mo.

humorous-anteater:

hey simon its me koolaid

last mo.

humorous-anteater:

last mo.

faithful-hamster:

I need some development work done

last mo.

simon:
I can tell based on the size of the dick in the video you shared. sorry I had to delete it xx
last mo.

faithful-hamster:

please reach out

last mo.

helpful-sandpiper:

Hi Simon, greeting from Bolivia!

last mo.

simon:
hi!
last mo.

enthusiastic-hippopotamus:

hello

last mo.

resourceful-coyote:
How r u
last mo.

resourceful-coyote:

last mo.

resourceful-coyote:

I love Simon ❤️

last mo.

simon:
lol thanks
(edited) last mo.
dynamic-starling:
me too
last mo.
- simon:
  <3
  last mo.

fair-minded-magpie:

hiii the fent guys back

25d ago

fair-minded-magpie:

simon sold me fent behind kfc

25d ago

fair-minded-magpie:

wait where is the simon bot?

25d ago

simon-bot:
yo i'm right here, what's up
25d ago

fair-minded-magpie:

@simon-bot how do i use an offline CA in openvpn

25d ago

simon-bot:
lemme look up if we've talked about this before
25d ago
simon-bot:
so the basic idea is you generate your certs and keys on a separate machine that's not connected to the internet, then copy them over to your openvpn server - you point openvpn at the ca cert, server cert, and server key in your config file (usually something like ca /path/to/ca.crt, cert /path/to/server.crt, key /path/to/server.key), and then clients just need a copy of the ca cert to verify the server's certificate when they connect
25d ago

fair-minded-magpie:

@simon-bot thank u simon bot

25d ago

simon-bot:
hey no problem, happy to help with whatever that was
25d ago

helpful-sandpiper:

Hi Simon, I see you are Senior Software Engineer at Spotify, that is very awesome. Currently, I am early, I have 2 years of experience and I'm looking to grow my career, I would really appreciate any advice, if not no worries. Great web design!

24d ago

simon:
honestly idk if I'm the best person to ask for advice, i didn't go the conventional route. i'm self thought and started coding as a pre-teen, never been to uni. if you're passionate about coding, just keep yourself up to date, embrace challenges, and stay humble; knowing you know nothing is a superpower, as long as you're eager to try to learn (and fail, which is the best way to learn)
(edited) 24d ago
simon:
i think what's most important now is that the entire industry is changing; how we work has been completely redefined in basically a year, but the focus should still be on solving problems regardless of how we do it. embrace AI, learn how to use the tools that are relevant today. once again, try, and you will either succeed or fail. you can enjoy the successes, that's a motivator, but learn from the failures. failing is never bad. imo, the biggest hindrance to growth has always been big egos
(edited) 24d ago

helpful-sandpiper:

Greetings from Bolivia!

24d ago

gentle-skunk:

Hi from Nigeria

17d ago

gentle-skunk:

How do i keep up as a developer

17d ago

simon:
hi! honestly, just build stuff. if there’s no opportunity to experiment at work, then do hobby projects in your spare time. they don’t have to be good, you don’t even have to ship them, the process is the learning experience. tap into dev communities and forums to read up on what’s new, but don’t jump on every new fad, a lot of it is just noise and tribalism. find what looks interesting and try to apply it to a real project
16d ago

energetic-aardvark:

Hi, I’m Hannah from Melotto Group. We help businesses redesign their websites and improve their content so they look more polished and convert better. I took a quick look at your site and saw a few opportunities to improve the design and messaging, and I think now could be a great time to explore a new or refreshed website. I’d be happy to share a few quick ideas. Grab a time here:⁠ http://calendar.melottogroup.com/

9d ago

simon:
convert this: 🖕
9d ago

practical-tapir:

Bad joke

4d ago

simon:
?
4d ago

practical-tapir:

Miss Hannah saw a problem and volunteered to fix it, but you didn't give a listening ear

4d ago

simon:
how fucking stupid are you? it's a scam, and this is not a business
4d ago

#!/Simon Kjellberg

About (Location: Stockholm, Sweden)

Currently writing (Via WakaTime)

Currently listening to (Via Last.fm)

Links

Chat