About
Bu Kinoshita was the first engineer at WorkOS, where he built the initial product and helped it grow to serve over 200 B2B SaaS customers. He has developed open-source packages and maintains expertise in Node.js and product development, and now serves as co-founder and CTO at Resend.
bu kinoshita @bukinoshita
thinking Forward can’t wait to see and meet you there https://t.co/3Ajglw3V2X
Apr 18, 2026 · ♥ 23
bu kinoshita @bukinoshita
Grab your popcorn and get ready for our Launch Week. 🍿 https://t.co/Cfcyy1LcRi
Apr 6, 2026 · ♥ 7
bu kinoshita @bukinoshita
Speed is addictive. If review is a checkbox, we’re not building software, we’re building black boxes. "Just let me ship". Attention and refinement is what makes work last. Ship, but not at the cost of understanding what we’re building.
Feb 23, 2026 · ♥ 9
Founder at ResendYC W23
Intro paths
Bu went through Y Combinator (Winter 2023) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Diana Hu, General Partner at Y Combinator — the partner who ran Resend's batch and knows the company first-hand. YC profile ↗
In turn, Bu can intro founders to Resend's investors below.
Resend's investors · 3
Co-founders at Resend
