Mayin Joshi

19, currently working on improving AI agents for complex tasks through autonomous harness experimentation @ SquareDiff.

I excel as a generalist in high-autonomy roles at technical companies, working cross-functionally across growth, product, ops, and engineering to bring things into the world. I pride myself on being able to learn things quickly and outwork the field.

More interests: Poker (mayinpoker.com), chess (played competitively from 8-12 y/o), space (dad is an eng. professor, ex-NASA), robotics, piano, philosophy, and running.

Currently living in San Francisco, plan to stay here for a while.

Contact Me

I like meeting interesting people building interesting things. Reach out if you think we should talk.

mayintjoshi@gmail.com

My Story

2019: Started first business reselling shoes at 12 with $180. Built Minecraft mods.

2020: Hit multi 6-figure revenue at 13. Grew sneaker reselling biz with automated botting & proxy infra. Won #1 (Entrepreneur of the Year) w/ best pitch @ Microsoft x New Story's 3D printed housing biz strategy competition (youngest in 68 seats).

2021: Hit 6 figures in profit @ 14 sneaker botting. Won Uber x Bell Flight's UAV biz strategy competition (youngest out of 35 international seats). Started Kick Vault, an invite-only marketplace connecting secondary market retail stores and bulk streetwear sellers. Think bulk Bay Area StockX.

2022: Hit $680k GMV in 3 months organically @ Kick Vault. Wound down after secondary market crashed. Started organic social marketing agency for consumer tech & gaming cos. Hit 5 figures MRR in 3 months cold (email / linkedin) at 16. Worked with companies like Crypto.com, WeMod, Involve, Pocket Whale, and others.

2023: Got deep in stats, UX, and consumer psychology. Started another agency (Expocord.com) focused on conversion rate optimization for mid-market fashion brands. Worked with execs from Culture Kings, Lulus, Abercrombie on launching a new line. 5+ figure MRR, global team of 4.

2024: Graduated high school early at 17 (4+ grades ahead in math, highest GPA-to-attendance ratio in school history), moved to San Francisco alone the day I turned 18 to work on a fintech idea. Started consulting for venture tech startups in growth / ops.

2025: Worked on growth & marketing at Canvas Robotics (acq. by JLG, Series B, 60M+ raised). Spent time coding w/ AI, focused on LoRa, multimodal pipelines, & vectorization. Worked on projects like RyloAI, Worthwise AI, Poker CRM, & more.

Joined Productboard (Series D, 260M+ raised) to lead growth marketing in September (youngest hire & lead manager by 12+ years). Full-funnel PLG & experimentation, working holistically across growth, product, marketing, and engineering. Focus on Spark, our AI agent for product managers.

Worked on enabling agentic commerce data pipelines @ lornai.com on the side.

2026: Left Productboard in March, turning down a promotion opportunity to co-found SquareDiff with Singamreddy.com.

Making agents work for complex tasks through autonomous full-harness experimentation. A new paradigm of agents building & optimizing AI systems.

Backed by AI leaders at Fortune 100 companies (& former boss at Productboard).

1,337 contributions since January 1, 2025

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Mon
Wed
Fri
LessMore