Mix & Go

Engineering that ships. Content developers trust.

I'm Cezar. I've spent 18 years building software, and over a decade teaching developers through Mix & Go. Today I help companies in two ways.

Cezar Halmagean speaking at HackTalks
Speaking at HackTalks
Rails + AI consulting

Make sure your AI bets pay off.

Your team can build the feature. I make sure it doesn't break, misbehave, or run up a six-figure bill.

See Rails + AI consulting
YouTube for devtools

Get found by developers who've never heard of you.

YouTube videos that show up when developers search for their problem, built by an engineer, with real code.

See YouTube programs
  • 2008
    Building Ruby on Rails apps since
  • 3M+
    Monthly users at RepairPal, where I was tech lead
  • 160+
    Rails developers trained
  • Speaker
    Rails Global Summit and RubyConf

Latest from the Mix & Go channel

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Rails LLM Monitoring: Track Costs, Latency & Token Usage

How to Build an AI Sales Agent With Ruby on Rails
Watch on YouTube