Tejas Kumar

I'm Tejas Kumar,

and I've been building on the web for over 20 years at places like

I host a podcast.

Where I talk to world experts in web engineering and do lectures.

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Here are some things people say about my podcast.

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I speak at conferences.

I've given about 50 talks in recent times. Here are the 10 most recent.

Invite me to speak at your event →

✨ Find answers across all of my talks with fine-tuned AI.

Running this at scale is pretty expensive, but will stay free. If you'd like to support this, here's how you can.

Here are some things people say about my talks.

If you'd like me to speak at your event, please contact me below.

I wrote a book.

Book cover

This book is a deep dive on how React works on the inside that can help you understand its internal mechanisms more deeply and unlock greater levels of fluency.

It was curated by me, published by O'Reilly, and thoroughly reviewed a number of peers including the React core, experts, friends, and more.

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Here are things people say about this book.

  • Una πŸ‡ΊπŸ‡¦
    Una πŸ‡ΊπŸ‡¦ @Una
    I think I need to read @TejasKumar_'s new book πŸ˜… Great talk about optimizing React w/useDefferedValue and useTransition at #ReactParis
    March 22, 2024 View on 𝕏 →
  • Michelle Bakels
    Michelle Bakels @MichelleBakels
    I got dropped into web dev via corporate mandate 6 yrs ago, so I love that Fluent React begins by outlining the ecosystem of the time β€” something I was largely disconnected from. This context has helped me appreciate everything I’ve learned so much more. @TejasKumar_ πŸ™
    March 23, 2024 View on 𝕏 →
  • Daniel Afonso
    Daniel Afonso @danieljcafonso
    Fluent React is #1 best selling. As it should be 😁
    March 23, 2024 View on 𝕏 →
  • Amanda 🌿
    Amanda 🌿 @hey_amandam
    V excited for this. As someone who has used React for years but never as my only focus, it will be interesting to see how this deepens knowledge for me I'm a huge fan of @TejasKumar_ as a person and enjoy his teaching style so I expect to feel more of that same vibe in this book
    March 14, 2024 View on 𝕏 →
  • Nisarg Parikh
    Nisarg Parikh @nisargparikh90
    Fluent React by @TejasKumar_ is an amazing book. Learning React by reading a book is a completely new experience.
    March 7, 2024 View on 𝕏 →
  • Josh W. Comeau
    Josh W. Comeau @JoshWComeau
    Tejas previewed some of his book in his React Paris talk and it's seriously great. Goes deep into advanced topics. Just picked up a copy for myself πŸ˜„
    March 23, 2024 View on 𝕏 →

✨ Using AI, answer any question from the book.

Running this at scale is pretty expensive, but will stay free. If you'd like to support this, here's how you can.

I write a blog.

I don't presume to have anything profound to say, but here are some thoughts.

Biggest Lessons of 2024: Honor, Trauma, and People

Dec 28, 2024

Biggest Lessons of 2024: Honor, Trauma, and People

Dissecting honor, what it takes to overcome trauma, how to heal from the fear of failure and prioritize relationships.

 It's Okay to Code on Nights and Weekends

Dec 22, 2024

It's Okay to Code on Nights and Weekends

Rethinking the balance between coding passion, life, and maintaining healthy boundaries.

 How to Grow Professional Relationships

Nov 28, 2024

How to Grow Professional Relationships

A practical, science-backed model for growing quality professional relationships.

 Health, Fitness, DevRel, and Hemophilia

Sep 3, 2022

Health, Fitness, DevRel, and Hemophilia

A deeply personal post about my health journey and how it's affected my fitness, devrel work, and more.

 Pillars of Impact for Web Engineers

Mar 10, 2022

Pillars of Impact for Web Engineers

A blog post about impact web engineers can have and how they can grow it over time.

 Goodbye Facebook

Jan 11, 2021

Goodbye Facebook

Why I'm deleting my Facebook, Instagram and WhatsApp accounts at the end of the month.

 2020 in Review: Still Thankful

Jan 1, 2021

2020 in Review: Still Thankful

A look back at the weirdest year I've lived yet.

 Why I Don't Prefer Speaking at Remote Conferences

Mar 16, 2020

Why I Don't Prefer Speaking at Remote Conferences

A blog post about why I don't prefer speaking at remote conferences.

 Why I Think Remote Work is Incredible

Jan 27, 2020

Why I Think Remote Work is Incredible

A blog post about why I think remote work is incredible.

 5 things I love about my website (and how they're built)

Jan 20, 2020

5 things I love about my website (and how they're built)

A blog post about 5 things I love about my website and how they're built.

 What I Learned From Getting Pushed Off My Bicycle

Jan 15, 2020

What I Learned From Getting Pushed Off My Bicycle

A blog post about things I learned after being randomly attacked on the streets of Berlin when a stranger pushed me off my bicycle.

 Hello World

Jan 13, 2020

Hello World

A blog post about why I started this blog.

✨ Using AI, answer any question from the blog.

Running this at scale is pretty expensive, but will stay free. If you'd like to support this, here's how you can.

I'm on social media.

Come say hi!

✨ Ask me anything.

Running this at scale is pretty expensive, but will stay free. If you'd like to support this, here's how you can.

We may work well together.

Shall we have a chat?

Send an email