Alexander Stathis: Scaling a Modular Rails Monolith at AngelList
From On Rails by Rails Foundation, Robby Russell
October 21, 2025 · 1h 29m · Season 1 · Episode 7
About this episode
Robby Russell interviews Alexander Stathis about scaling a modular Rails monolith at AngelList.
In this episode of On Rails, Robby is joined by Alexander Stathis, a Principal Software Engineer at AngelList, where Rails powers complex investment, accounting, and banking business logic across a modular monolith structure. They explore how AngelList maintains conceptual boundaries in their codebase, uses gradual typing to influence their Ruby style away from Rails “magic,” and why they’ve adopted multiple async job solutions for different types of work rather than seeking a one-size-fits-a...
People in this episode
Host: Robby Russell
Guest: Alexander Stathis
Topics covered
- modular monolith
- Ruby
- async jobs
- investment
- banking
- software engineering
Keywords
- Rails
- modular monolith
- Ruby
- async jobs
- investment
- accounting
- banking
Mentioned in this episode
Organizations: AngelList
Books & works: Rails
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