MK/CASTRO

Mike Castro — Full Stack Developer & Technical Leader

Built forproduction

Ten years of fintech, SaaS, and enterprise platforms. APIs at 300+ requests per second. Zero-downtime deploys. Compliance passed, teams led, legacy revived. It doesn't count as shipped until it survives production.

Est. 2014
Three-time CTO300+ req/s sustained100+ zero-downtime deploysPCI DSS + BSP compliant10+ years shippingTeams of 12 ledLaravel 4.2 → 10 revivedSub-200ms responses
/01

Hall of fame

Shipped, deployed, survived. The projects that earned their place.

CTO & Co-founder · Founder-led

Event Designs by Tiffany

Complete business platform for an event design company — marketing site, client estimator and booking flow, and admin back office

  • Next.js
  • React
  • TypeScript
  • Prisma
  • PostgreSQL
  • Tailwind CSS
Open project
Event Designs by Tiffany screenshot

Lead Developer / Migration Lead · 2-4 developers

CryptoBack Club

Canonical crypto cashback platform rebuilt from Laravel to Next.js

  • TypeScript
  • Next.js
  • React
  • Drizzle ORM
  • PostgreSQL
  • Clerk
Open project
CryptoBack Club screenshot

Lead Developer · 2-4 developers

CryptoBack Partners

Affiliate partner portal for CryptoBack campaigns, reporting, statements, and payouts

  • TypeScript
  • Next.js
  • Drizzle ORM
  • PostgreSQL
  • Vercel
  • Tailwind CSS
Open project
CryptoBack Partners screenshot
/02

The line

It doesn't matter where you start. It matters what survives.

Started shipping code in 2014. Kept shipping — through startups, agencies, three CTO seats, and enterprise platforms serving dozens of corporations. Every system on this site ran in production, moved real money, or served real users. That's the only line I measure against.

The full story
LaravelNext.jsReactTypeScriptNode.jsVue.js
PostgreSQLRedisAWSDockerMySQLGitHub Actions

For hiring teams

Need a senior who ships?

Full stack depth, DevOps included, CTO-level judgment. The resume is one click away and the proof is above.

Get the resume

For businesses

Need a site that sells?

From premium websites to full business platforms — bookings, payments, accounting, the works. If your business runs on paper or Excel, I build the bespoke system that replaces them. In production in under 24 hours once requirements are locked.

See services