Yogesh Kumar

I build the things I wish existed.

I make digital things. I'm Yogesh, founder of Droidsize and co-founder of Chargespot. I've been building software products since 2013. Today I work from New Delhi, bringing design, engineering and AI together to build useful products.

Companies

Projects

The story

I've been building software products since 2013 — first inside other people's startups, now mostly through companies of my own. The pattern has never changed: learn by shipping.

The early years were employment and contracts — Paytm (seller platform, then growth engineering), four years building a fintech app at Pei that Americans used every day, a stint at Flex after the acquihire. Before all of that there was Unstudious, my first venture, an EdTech idea good enough that Matrix Partners and Tracxn came asking. It didn't become a company, but it made me one.

In 2019 I started Droidsize, the product studio where most of my work lives today — SaaS and AI products like Domain Collective, Sparkles, and TripleWave, built on shared rails that make every next product faster. In 2023 my wife and I founded Charge23 Labs to build Chargespot, EV charging for India — DPIIT-recognised, incubated at AIC Sangam, and the hardest problem I've picked yet. On my own time I build in the Polkadot ecosystem: Relaycode is funded by the Web3 Foundation, with its second milestone delivered in early 2026.

Since late 2025 I've built almost everything with AI agents in the loop. It's the biggest shift in how I work since I learned to program — I ship faster today than at any point in thirteen years.

What I'm optimising for now: fewer, better products. Public work over private drafts. And the kind of compounding that only shows up when you keep building for a long time.

Experience

Founder · Droidsize Technologies

Founder of Droidsize, the product studio behind Domain Collective, Sparkles, Triplewave and other software products.

2019–now

Co-founder · Charge23 Labs

DPIIT-recognised, SISFS-backed, incubated at AIC Sangam

2023–now

Founding Engineer (part-time contract) · Stream

Long-running contract with the founders I worked with at Pei

2023–now

Senior Software Engineer · Flex

Joined through Pei's acquihire

2022

Founding Engineer · Pei

Four years building the iOS and Android apps (React Native) and backend APIs

2018–2021

Software Engineer → Growth Engineer · Paytm

Seller dashboard backend for the e-commerce marketplace

2014–2016

Founding Engineer · SquadRun

First engineering job — backend APIs and the first Android app

2013–2014

Freelance

Frontend Engineer · AlphaSheets

First independent contract — the spreadsheet grid and formula UI in React and Flux; the team was later acqui-hired by Google

2016–2017

Blockchain Engineer · Busy.org

Built the commenting system on Steem — paid in Steem tokens

2017

Wallet Engineer · Komodo wallet

A wallet over Komodo's Zcash-derived zero-knowledge stack

2017

Mobile Engineer · Ryze / Epics

Card-trading apps in React Native

2017–2018

Mobile Engineer · AiFi

React Native barcode scanning for cashierless stores

2018–2019

Mobile Engineer · Millions

Animation-heavy prize-wheel and daily-drawing experiences across iOS and Android

2019–2021

Recognition

Web3 Foundation Grant — Relaycode

Web3 Foundation

2024

Startup India Seed Fund (SISFS) — Charge23 Labs

Startup India (DPIIT)

2024

Polkadot Solidity Hackathon — 1st place, EVM track

OpenGuild × Web3 Foundation

2026

Polkadot Prodigy — Winner, AI×Web3 ($6,000)

Polkadot Prodigy hackathon

2025

CTRL Hack ZK — 2nd place ($2,300)

Aleph Zero

2024

Intel Perceptual Computing Challenge — 2nd worldwide

Intel

2013

BlackBerry Jam Hack — 1st place

BlackBerry India

2013

Tizen App Challenge — 1st place

Samsung

2013

Milestones

2013

SquadRun · Unstudious

Founding engineer at SquadRun. Founded Unstudious, an EdTech startup that drew Matrix Partners' attention.

2014

Paytm

Seller platform during the marketplace build-out, then growth engineering.

2016

Independent

Left Paytm to contract with product teams across the US and Europe.

2017

First blockchain work

Busy.org's commenting system on Steem, a Komodo wallet, Ryze's card-trading apps.

2018

Pei · Bitcharge

Began four years building Pei's consumer fintech apps. Shipped Bitcharge v1 to 195 businesses.

2019

Droidsize Technologies

Incorporated the product studio with Neeraj Kumar.

2021

Polkadot

First Kusama treasury grants — the move into Polkadot developer tooling.

2022

Flex

Followed Pei's acquisition to Flex, then left to build companies full-time.

2023

Charge23 Labs

Incorporated with Evisha Soni to build Chargespot — DPIIT-recognised, incubated at AIC Sangam.

2024

Web3 Foundation grant

Relaycode accepted into the W3F grants program.

2025

AI-native development

Rebuilt the workflow around AI agents. Domain Collective and Merry Magic Mail shipped.

2026

Relaycode M2 · Droidsize relaunch

Delivered Relaycode's second grant milestone, won the Polkadot Solidity Hackathon with Relaycode Studio, shipped better-SIWP. Relaunched droidsize.com and this site.

The clearest picture of how I work is the work itself.