Founder building the future of fintech
Ex-Stripe. YC W24. Building tools that help founders raise capital faster, cheaper, and with more confidence.
Current focus
AI-powered fundraising platform for startups. YC W24 batch.
Looking for
Angel investors for Seed round. Also open to advisor connections in fintech.
Based
San Francisco → Remote
Journey
Flow Capital — Founder & CEO
YC W24. AI-powered fundraising platform that helps founders raise capital 3x faster. Built the entire product in 8 weeks, launched to 200+ waitlist, closed seed round from top-tier VCs.
Stripe — Staff Engineer
Led payments infrastructure team. Built systems processing $50M+ daily. Mentored 8 engineers, promoted to staff within 18 months. Shipped Connect API v2 and instant payouts feature.
Ledger — Co-founder
Accounting automation tool for SMBs. Raised $2M seed, grew to 10K users, acquired by a public company. Learned the hard lessons of B2B sales and customer success.
Google — Software Engineer
Payments team. Built GPay integration for 50+ merchants. Promoted twice. Left to start my first company.
Companies built
Three companies across payments, accounting, and fundraising. Each one taught me something different about building products people actually pay for.
Flow Capital
2024 — PresentLedger
2020 — 2022 (Acquired)Stripe
2022 — 2024Impact metrics
Numbers I'm proud of. Not vanity metrics — these represent real value delivered to users, investors, and employers.
Raised for portfolio founders
Through Flow Capital, helped 15+ founders close their seed rounds. Average time to close: 6 weeks.
Daily payments processed
Led the infrastructure team at Stripe that kept $50M flowing every single day without downtime.
Users acquired
Grew Ledger from 0 to 10K paying SMB customers in 18 months before acquisition.
Press & recognition
When the work speaks, people listen. Here's where it's been featured.
"Flow Capital uses AI to match startups with the right investors"
"W24 Demo Day Highlights: Flow Capital"
Acquired — Building in Public: From Google to YC
Advisors & investors
Smart people who've invested time, money, or both. Grateful for the guidance.
Sarah Chen
Seed investor in Flow Capital. 15+ years in venture.
David Kim
Advisor. Helped me think through pricing and GTM strategy.
Michael Torres
W24 batch partner. Always cuts through the noise.
What founders say
Real feedback from people I've worked with, advised, or invested in.
"Alex didn't just write a check — he helped us rethink our entire fundraising deck. The intro to Sequoia alone was worth 10x the investment."
"Working at Stripe, Alex was the kind of engineer who'd explain not just what to build, but why. He made the whole team better."
FAQ
Questions I get asked a lot. Saves us both time.
What are you working on now? +
Flow Capital — AI-powered fundraising for startups. YC W24. We're building the easiest way to raise a seed round.
Are you taking new investments? +
We're raising a seed round. If you're an angel or VC interested in fintech + AI, I'd love to chat. Email me.
Can you advise my startup? +
I mentor 2-3 founders at a time through YC's office hours. Not taking on more right now, but happy to point you to good resources.
How do I get into YC? +
Apply at ycombinator.com. My best advice: focus on a real problem you've personally experienced, and show traction, not just a idea.
Let's connect
Always happy to chat with founders, investors, or anyone building something ambitious.