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Tejas Kumar

@tej.as
6.8K followers 234 following 381 posts

AI Engineer at IBM, Berlin. Host, ConTejas Code Podcast. Best Selling Author, Fluent React. Keynote Speaker. Investor. Advisor. tej.as

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Tejas Kumar @tej.as · 14/09/2026
I turned my AI Engineer Europe talk into a post: what an agent harness is, and how a harness took GPT-3.5 Turbo from lying about success to finishing the job in 6 iterations, with the same prompt. tej.as/blog/what-is-an-agent-harness
tej.as
What Is an Agent Harness? Harness Engineering Explained
An agent harness is everything around an AI model that grounds it in reality: tools, context, guardrails, the loop and verification. How to build one.
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Reposted by Tejas Kumar
François Best @francoisbest.com · 26/03/2026
Let’s go, @tej.as & @sarahdayan.com kicking off #ReactParis 2026 The lineup is amazing 🤩
Sarah and Tejas on stage with all the speakers on a slide
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cityjsconf.bsky.social @cityjsconf.bsky.social · 12/04/2026
UX is changing with AI — from clicking clunky interfaces to speaking commands naturally. 🚀 @tej.as shows how JavaScript developers can adapt with practical tips and live demos. 🎟️ Tickets: london.cityjsconf.org/ #AI #UX #JavaScript #software engineer #frontend #WebDevelopment #cityjsconf
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WebExpo Conference @webexpo.bsky.social · 14/04/2026
AI engineering is more than a glorified fetch call to an LLM. 💻 At his workshop, @tej.as will take you beyond the prompt: ✅ Building and orchestrating agents ✅ Hands-on with RAG, OpenClaw, and the 2026 AI stack ✅ What happens inside the "black box" of AI 🎫 Limited spots!
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Martin Michalek @machal.bsky.social · 16/04/2026
This year's #FrontKon conference is shaping up to be a big one: – Sara Polak (AI from a strategic and philosophical perspective) – @tej.as (AI & future of frontend development) – @matuzo.at (accessibility in React) See you in Prague on October 6th? 🇨🇿 #WebDev #Frontend #Prague www.frontkon.tech
frontkon.tech
FrontKon#26 – frontend event in Prague
Full-day live conference of the Frontendisti.cz community
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R "Nearest" Nabors @nearestnabors.com · 16/04/2026
Writing recap post of AIE, and found this in my photos! What a great time! Only complaint: afterparty needed a little more wub-wub on the floor! <3 @tej.as @nickyt.online
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Tejas Kumar @tej.as · 01/03/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/... Don't forget to share if it's useful!
podcasts.apple.com
What is AI engineering and what do AI engineers even do?
Podcast Episode · ConTejas Code · February 23 · 1h 56m
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Tejas Kumar @tej.as · 01/03/2026
honestly, @cursor_ai has the best execution of context engineering ive ever seen credit where credit is due
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Tejas Kumar @tej.as · 28/02/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/... Don't forget to share if it's useful!
podcasts.apple.com
What is AI engineering and what do AI engineers even do?
Podcast Episode · ConTejas Code · February 23 · 1h 56m
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Tejas Kumar @tej.as · 28/02/2026
did skills.md kill mcp (model context protocol)? a lot of people are talking about this so i thought this excerpt from the latest podcast episode might help distinguish these two concepts in ai engineering full ep in reply
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Tejas Kumar @tej.as · 27/02/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/... Don't forget to share if it's useful!
podcasts.apple.com
What is AI engineering and what do AI engineers even do?
Podcast Episode · ConTejas Code · February 23 · 1h 56m
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Tejas Kumar @tej.as · 27/02/2026
if you've ever had trouble understanding mcp (model context protocol), i made a podcast episode that explains this. i hope it helps? (full ep in reply)
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Tejas Kumar @tej.as · 26/02/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/... Don't forget to share if it's useful!
podcasts.apple.com
What is AI engineering and what do AI engineers even do?
Podcast Episode · ConTejas Code · February 23 · 1h 56m
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Tejas Kumar @tej.as · 26/02/2026
❗ llms are not agents and agents are not llms here's a clear explainer of what an agent is and how it compares to regular language models from the podcast for those who are feeling a bit behind full episode in reply
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Tejas Kumar @tej.as · 26/02/2026
nobody asked but here’s my year round fitness program that i heavily enjoy - jan-mar: bulk up (hypertrophy) - apr-jun: cardio base building (aerobic capacity) - jul-sep: peak cardio performance (anaerobic capacity) - oct-dec: strength (1rm)
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Tejas Kumar @tej.as · 25/02/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/... Don't forget to share if it's useful! Huberman Lab episode: www.youtube.com/watch?v=CQl...
youtube.com
Tools to Enhance Working Memory & Attention
In this episode, I discuss working memory, which is critical for learning and productivity, strategy setting, goal seeking, and navigating new environments. ...
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Tejas Kumar @tej.as · 25/02/2026
context engineering in ai is a thing because it's really just working memory optimization. both humans and machines have distinct working memory vs. long-term storage mechanisms. more on this in the podcast (links in reply) h/t @hubermanlab for a great episode on memory (also linked in reply)
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Tejas Kumar @tej.as · 24/02/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/... Don't forget to share if it's useful!
podcasts.apple.com
What is AI engineering and what do AI engineers even do?
Podcast Episode · ConTejas Code · February 23 · 1h 56m
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Tejas Kumar @tej.as · 24/02/2026
every time i ask someone if they can be an ai engineer, they say "no because i don't know anything about machine learning" ...these are very different topics. here's an excerpt from the contejas podcast that clearly defines what ai engineering is full episode in reply
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Tejas Kumar @tej.as · 23/02/2026
We work for the same company yes, but we have not yet collaborated on anything.
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Tejas Kumar @tej.as · 23/02/2026
Thanks Bram!
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Reposted by Tejas Kumar
Faris Aziz @farisaziz.com · 23/02/2026
Clearly copy pasta from brain is a skill
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Tejas Kumar @tej.as · 23/02/2026
imagine a coding interview where they test how well you memorize code
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Tejas Kumar @tej.as · 23/02/2026
Hopefully soon my friend!
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Tejas Kumar @tej.as · 23/02/2026
Exactly!
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Cal Irvine @calirvine.com · 19/02/2026
I always found the answer to be the least interesting part anyway, and this hasn’t changed with AI. Doing it asynchronously is silly as heck though, you won’t get any signal from that.
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Tejas Kumar @tej.as · 23/02/2026
Exactly this!
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Whitney McGruder: Author Coach | Publisher @whitneymg.bsky.social · 18/02/2026
Such a great reminder, everyone is human and growth comes from learning not comparing ☕✨
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Tejas Kumar @tej.as · 23/02/2026
Catch the full episode on - Spotify: open.spotify.com/episode/3b7r... - YouTube: youtu.be/i3RYBRGxDdQ - Apple Podcasts: podcasts.apple.com/us/podcast/w... Don't forget to share if it's useful!
open.spotify.com
What is AI engineering and what do AI engineers even do?
Spotify video
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Tejas Kumar @tej.as · 23/02/2026
I just created a podcast episode I'm quite proud of: what is AI engineering and how to become an AI engineer. Links in reply.
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Tejas Kumar @tej.as · 22/02/2026
Full episode on - YouTube: youtu.be/yvQkstHWq2A - Spotify: open.spotify.com/episode/7hu... - Apple: podcasts.apple.com/us/podcast/... Reshare if helpful!
podcasts.apple.com
Mikhail Korolev: How to Hack the Job Market & Get Into VIP Rooms
Podcast Episode · ConTejas Code · 02/16/2026 · 1h 31m
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Tejas Kumar @tej.as · 22/02/2026
the bar is so low.
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Tejas Kumar @tej.as · 21/02/2026
Full episode on - YouTube: youtu.be/yvQkstHWq2A - Spotify: open.spotify.com/episode/7hu... - Apple: podcasts.apple.com/us/podcast/... Reshare if helpful!
podcasts.apple.com
Mikhail Korolev: How to Hack the Job Market & Get Into VIP Rooms
Podcast Episode · ConTejas Code · 02/16/2026 · 1h 31m
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Tejas Kumar @tej.as · 21/02/2026
how to get a job at your dream company: cold applying doesnt work anymore. just listen to how @mkrl.xyz got an interview at @supabase.com when they previously ignored his emails.
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Tejas Kumar @tej.as · 20/02/2026
Full episode on - YouTube: youtu.be/yvQkstHWq2A - Spotify: open.spotify.com/episode/7hu... - Apple: podcasts.apple.com/us/podcast/... Reshare if helpful!
podcasts.apple.com
Mikhail Korolev: How to Hack the Job Market & Get Into VIP Rooms
Podcast Episode · ConTejas Code · 02/16/2026 · 1h 31m
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Tejas Kumar @tej.as · 20/02/2026
i think @vercel.com does devrel extremely well because it's more "build in public" than shilling. you don't need "devrel" in your title. you just need to build things youre proud of and share them.
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Tejas Kumar @tej.as · 19/02/2026
Full episode on - YouTube: youtu.be/yvQkstHWq2A - Spotify: open.spotify.com/episode/7hu... - Apple: podcasts.apple.com/us/podcast/... Reshare if helpful!
podcasts.apple.com
Mikhail Korolev: How to Hack the Job Market & Get Into VIP Rooms
Podcast Episode · ConTejas Code · 02/16/2026 · 1h 31m
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Tejas Kumar @tej.as · 19/02/2026
Leetcode interviews don't make sense anymore with AI. Is it cheating or is it just modern engineering? Is tech interviewing totally broken? @mkrl.xyz and I discussed this recently on the pod.
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Tejas Kumar @tej.as · 18/02/2026
Full episode on - YouTube: youtu.be/yvQkstHWq2A - Spotify: open.spotify.com/episode/7hu... - Apple: podcasts.apple.com/us/podcast/... Reshare if helpful!
podcasts.apple.com
Mikhail Korolev: How to Hack the Job Market & Get Into VIP Rooms
Podcast Episode · ConTejas Code · 02/16/2026 · 1h 31m
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Tejas Kumar @tej.as · 18/02/2026
Don't Idolize Tech "Superstars". They drink coffee and have bad days just like you. Stop putting senior engineers on pedestals. Great advice from @mkrl.xyz on the latest podcast.
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Tejas Kumar @tej.as · 17/02/2026
Thank you friend
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Tejas Kumar @tej.as · 17/02/2026
Full episode on - YouTube: youtu.be/yvQkstHWq2A - Spotify: open.spotify.com/episode/7hu... - Apple: podcasts.apple.com/us/podcast/... Reshare if helpful!
podcasts.apple.com
Mikhail Korolev: How to Hack the Job Market & Get Into VIP Rooms
Podcast Episode · ConTejas Code · 02/16/2026 · 1h 31m
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Tejas Kumar @tej.as · 17/02/2026
If you're looking to network effectively at an event, always leave the "mouth" open. Here is the Pac-Man rule explained by @mkrl.xyz. 👻
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Tejas Kumar @tej.as · 17/02/2026
Thrilled about the continued hypergrowth of the ConTejas podcast.
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Tejas Kumar @tej.as · 15/02/2026
Full episode on - Spotify: open.spotify.com/episode/34b... - YouTube: youtu.be/ZpfpgDGofmE - Apple Podcasts: podcasts.apple.com/us/podcast/... Share if useful!
podcasts.apple.com
How to communicate well: interpersonally, in teams, and on stage
Podcast Episode · ConTejas Code · 02/09/2026 · 1h 51m
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Tejas Kumar @tej.as · 15/02/2026
Got the Sunday Scaries? Stop trying to "relax." Anxiety and Excitement are the exact same biological signal (high arousal). The only difference is the story you tell yourself. Don't calm down, get ready.
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Tejas Kumar @tej.as · 14/02/2026
Full episode on - Spotify: open.spotify.com/episode/34b... - YouTube: youtu.be/ZpfpgDGofmE - Apple Podcasts: podcasts.apple.com/us/podcast/... Share if useful!
podcasts.apple.com
How to communicate well: interpersonally, in teams, and on stage
Podcast Episode · ConTejas Code · 02/09/2026 · 1h 51m
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Tejas Kumar @tej.as · 14/02/2026
Steve Jobs wasn't the best coder in the room. Neither is the person who just got promoted over you. The best communicators aren't always the smartest engineers—they are the ones who make you feel something. Here is the difference explained:
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Tejas Kumar @tej.as · 13/02/2026
Full episode on - Spotify: open.spotify.com/episode/34b... - YouTube: youtu.be/ZpfpgDGofmE - Apple Podcasts: podcasts.apple.com/us/podcast/... Share if useful!
podcasts.apple.com
How to communicate well: interpersonally, in teams, and on stage
Podcast Episode · ConTejas Code · 02/09/2026 · 1h 51m
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Tejas Kumar @tej.as · 13/02/2026
Want to know if you're actually listening or just waiting to talk? Try the 4 L's: Listen, Loop, Label, Lead. If you can get the other person to say "Exactly!" before you pitch your idea, you've already won. Full episode in reply.
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