# Mayin Joshi

> Mayin Joshi is the Co-Founder and CEO of SquareDiff, an autonomous agent optimization platform built for AI teams to find the most reliable, cost-efficient, and fastest version of their agents through autonomous experimentation. Based in San Francisco, Joshi is a serial entrepreneur who started his first business reselling sneakers at age 12, built a $680k GMV marketplace by 16, and by 18 had relocated to San Francisco to found multiple tech ventures. He also serves as Growth Marketing Lead at Productboard, where he was the youngest hire ever, working cross-functionally with product, data, engineering, and GTM to drive growth initiatives.

- **Role:** Co-Founder & CEO at SquareDiff; Growth Marketing Lead at Productboard
- **Organizations:** SquareDiff, Productboard, Rylo, Expocord, Kick Vault
- **Nationality:** American
- **Education:** High School Diploma, High School (early graduation)
- **Known for:** Built $680k GMV streetwear marketplace (Kick Vault) in 3 months at age 16, Achieved six-figure revenue in sneaker reselling by age 13, Founded and scaled Expocord CRO agency to serve Fortune 500 brands including Crypto.com, Culture Kings, and Abercrombie

## Career timeline

- **2018-2019** — Started sneaker reselling business at age 12 with $180 initial investment
- **2019-2020** — Scaled sneaker business to six-figure revenue by age 13, six-figure profit by 14; learned bot automation and proxy use
- **2021** — Founded Kick Vault, an invite-only marketplace for bulk streetwear; reached $680k GMV in 3 months
- **2022** — Launched organic social marketing agency for consumer tech and gaming companies; achieved five-figure monthly recurring revenue at age 16
- **2022-2023** — Founded Expocord.com, a CRO and data analytics agency; clients included Crypto.com, WeMod, Culture Kings, Lulus, and Abercrombie
- **2024** — Founded fintech startup Lop; relocated to San Francisco at 18; raised angel commitments but halted due to legal barriers
- **2024-2025** — Served as startup growth consultant for seed to Series C companies in robotics, consumer AI, and B2B SaaS; studied generative AI, RAG, and agentic retrieval
- **2025** — Founded Rylo, a fashion shopping app using multimodal AI and personalization
- **2025** — Co-founded SquareDiff, an autonomous agent optimization platform
- **2025-present** — Joined Productboard as Growth Marketing Lead and youngest hire ever (September 2025)

## Achievements

- Built $680k GMV streetwear marketplace (Kick Vault) in 3 months at age 16
- Achieved six-figure revenue in sneaker reselling by age 13
- Founded and scaled Expocord CRO agency to serve Fortune 500 brands including Crypto.com, Culture Kings, and Abercrombie
- Became youngest hire ever at Productboard (joined September 2025)
- Co-founded SquareDiff, building autonomous agent optimization for AI teams
- Graduated high school early at age 17
- Relocated to San Francisco at 18 to pursue tech entrepreneurship full-time

## Latest updates

- **2025-09** — Joined Productboard as Growth Marketing Lead and youngest hire ever
- **2025** — Co-founded SquareDiff, an autonomous agent optimization platform for AI teams
- **2025** — Founded Rylo, a fashion shopping app using multimodal AI

## Links

- Website: https://www.mayinjoshi.com/
- LinkedIn: https://www.linkedin.com/in/mayinjoshi/
- Twitter/X: https://twitter.com/mayinjoshi
- GitHub: https://github.com/mayincodes
- YouTube: https://www.youtube.com/channel/UCnvmrGKQXCh-xq-d04HNE8w
- Instagram: https://www.instagram.com/mayinjoshi/

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Profile page: https://yespress.io/mayin-joshi
Published by YesPress — https://yespress.io
Last updated: 2026-05-25