13,000+ on X · 21,500+ on LinkedIn · 28 posts

I build startups and write down what I learn.

I'm Harsh Agrawal. I dropped out of college at 18 to join Avalara as their youngest engineer, built DevKit to 12,500+ signups with ZFellows backing, and now run TechKareer.

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Featured on Disney+ HotstarThe Indian Edtech Story, episode 1

Avalara

DappCamp

BanterAI

Coding Ninjas

a16z

Sequoia

Worked at Avalara, DappCamp and BanterAI. Backed by ZFellows. Pitched to Techstars, a16z and Sequoia.

Writing

28 posts on first jobs, college applications, accelerators and building products. Most take a minute or two.

All 28 posts

My ZFellows Experience

A random tweet, a quick application, and an experience that shifted how I think about ambition and what I'm capable of.

Apr 20, 2023 · 3 min read

Essential Advice for Beginner Software Engineers

Four years of paid SWE work, eight years of writing code on the side, and a hundred conversations later. Everything I wish someone had told me on day one.

Feb 10, 2023 · 5 min read

Lessons I learned from my failed side project

Six months of work, plenty of mistakes, and the lessons I'd pass on to anyone starting a side project they hope will grow into a business.

May 12, 2026 · 2 min read

Landing My First Tech Job at 18

Got hired at Avalara (a $10B+ company) as an 18 year old, despite tanking the SQL questions. Here's the actual interview breakdown across all three rounds.

May 15, 2020 · 2 min read

The Application That Got Me Into ZFellows

ZFellows accepts under 1% of applicants. Here is the exact application I sent, plus the three things I think actually got me in.

Apr 24, 2023 · 5 min read

As a 23 year old, I am going back to SCHOOL

Dropped out at 19, going back at 23. Network School isn't a college, but it might be the most useful thing I do this year.

Sep 30, 2025 · 1 min read

WHAT I DO NOW

I help startups in the US and India hire engineers.

Founder of TechKareer since April 2024. Clients include Rifflix in SF, BanterAI in NYC and CodeMate in Bangalore. I also build TheJobsMap, 3.7 million open jobs on a world map.

20+companies helped

30+roles filled

Visit techkareer.com

techkareer.com

Things I've made

Products, a book and a course, 2022 to now.

Jobs on a world map · thejobsmap.com

TheJobsMap

See who's hiring anywhere on Earth. 3.7 million open jobs from 109,000 companies, each placed at its office.

AI assistant for developers · getdevkit.com

DevKit

Build software 10x faster with access to world-class LLMs and 30+ mini-tools.

The book

Successes, Failures, and Everything in Between

A short book about my first 22 years: Play Store games in high school, the NYU offer I couldn't take, dropping out, Avalara, DevKit and the VC calls.

★★★★★12 ratings on Gumroad

Get the book

Bowzer

A small, fast browser on Safari's engine, with tab groups, per-app accounts and AI agent control.

macOS app

TechKareer

Helping companies find the best tech talent in days instead of weeks.

techkareer.com

How to Make Your First $100 on the Internet

A cohort-based course that walks you from idea to first dollar online.

gumroad.com

Ethereum Developer Tooling Landscape

Discover the best tools for Ethereum development.

landscape.dappcamp.xyz

On video

The Hotstar docuseries and 5 podcasts I've been on.

YouTube channel

The Indian Edtech Story · Disney+ Hotstar docuseries, episode 1

Dropout to Avalara to DevKit

Coding Ninjas told my story in the first episode: the bootcamp, dropping out in my 2nd semester, two years at Avalara and starting DevKit.

My journey

Six roles since 2020, newest first.

Read the full story

Connecting top startups across the globe with top tech talent
Helped Rifflix.com (SF, founded by a Stanford grad), BanterAI.business (NYC) and CodeMate.AI (building Grammarly for developers)

Low-latency voice calls (under 2s response) for web and phone with WebSockets and Twilio
RAG system giving bots access to long-form content and real-time information
Internal tools to fine-tune LLMs in seconds